Mersedes Maybach S-Class. Service Manual — part 11
Setting the maximum charge current
G
WARNING
If the charge current draw via a mains socket
is too high during the charging process, the
external electrical system may overheat.
There is a risk of fire.
Before beginning the charging process, check
the maximum permissible charge current
locally. Consult a qualified expert to do so
where necessary.
If necessary, adjust your vehicle's settings.
!
An excessive charge current can blow a fuse
or lead to overheating of the external power
supply. Check whether the external power
supply is compatible with the set charge cur-
rent. If necessary, lower the set charge cur-
rent or use another power socket.
Before starting the charging process at a power
socket, check the maximum permissible charge
current for the relevant power socket or the
building.
You can set the maximum permissible charge
current:
R
on the controls of the charging cable
R
in the on-board computer menu
(
Y
page 272).
The lower value of the two charge current set-
tings – on the charge cable controls and in the
on-board computer – determines the maximum
charge current. If you cannot set the precise
maximum permitted charge current, select the
next lowest available value.
Only set the maximum permitted charge current
in the on-board computer menu if:
R
it is not possible to set the charge current on
the charging cable
R
the precise maximum permitted charge cur-
rent can only be set via the on-board com-
puter
How to set the maximum permissible charge
current on the charging cable, is described as
follows.
X
To adjust the setting: press button ?
repeatedly until the desired setting is selec-
ted in display =.
R
Two LEDs are flashing: minimum setting
R
All LEDs are flashing: maximum setting
If, after the charging process, the charging cable
is:
R
left connected to the power socket, the cur-
rently selected values will be used for the next
charging process.
R
removed from the power socket, the values
will be reset to the minimum setting for the
next charging process. You may then need to
reset the values of the maximum charge cur-
rent.
i
If the vehicle requires more time than usual
when charging, check the maximum charge
current settings using the controls on the
charging cable or in the on-board computer's
menu.
Indicator lamp on the vehicle socket
When the indicator lamp on the vehicle socket
lights up, this means the following:
Indicator
lamp
Flashes
orange
The connection between the
vehicle and the current
source is being established
before charging begins.
Flashes
green
The high-voltage battery is
being charged.
Flashes red
A malfunction has occurred
while charging.
The indicator lamp goes out
after approximately
90 seconds.
Lights up
orange
A charging break for the high-
voltage battery is taking
place.
The indicator lamp goes out
after approximately
90 seconds.
Lights up
green
The high-voltage battery is
fully charged.
The indicator lamp goes out
after approximately
90 seconds.
i
If the indicator lamp is off, lock or unlock the
vehicle. The indicator lamp then displays the
current status of the charging process again.
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Connecting the charging cable
X
Shift the transmission to position P.
X
Switch the ignition off.
X
Press the charge socket flap in the direction
of arrow :.
The charge socket flap swings up.
X
Press fastener ; to the left.
Socket cap = is open.
X
Insert the power supply plug into the electri-
cal outlet to the stop.
X
Insert the charging cable connector into vehi-
cle socket ? to the stop.
Indicator lamp A first flashes orange and
then green.
The high-voltage battery is being charged.
If the charging cable is connected to the vehicle,
you cannot start the engine or move the vehicle.
When the charging process begins, you can view
the charging prediction in the
Settings
menu
of the on-board computer. The charging predic-
tion is either the anticipated condition of charge
at the programmed departure time or the time
when the high-voltage battery will be fully
charged (
Y
page 272).
i
Depending on the temperature, the fan and
battery cooling system may audibly switch on
during the charging process.
Removing the charging cable
The high-voltage battery is fully charged when:
R
the charge level display reaches 100% in the
multifunction display (
Y
page 245)
R
the indicator lamp in the vehicle socket lights
up green after unlocking or locking the vehicle
X
Press and hold button B on the charging
cable connector and remove the charging
cable connector from the vehicle socket.
X
Close socket cap =.
X
Close charge socket flap :.
X
Remove the mains plug from the mains
socket and safely stow away the charging
cable inside the vehicle (
Y
page 183).
Charging the high-voltage battery
from the wallbox
General notes
It is recommended that you charge your vehicle
using a wallbox or at a charging station.
Make sure that the maximum charging current is
not limited in the
Settings
menu of the on-
board computer. You must select the maximum
value if charging at a wallbox or a charging sta-
tion (
Y
page 272).
Pay attention to the "Important safety notes"
(
Y
page 180).
Charging the high-voltage battery (PLUG-IN HYBRID vehicles)
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Connecting the charging cable
X
Shift the transmission to position P.
X
Switch the ignition off.
X
Press the charge socket flap in direction of
arrow :.
The charge socket flap swings up.
X
Press fastener ; to the left.
Socket cap = is open.
X
Insert the charging cable connector into vehi-
cle socket ? to the stop.
Indicator lamp A first flashes orange and
then green.
The high-voltage battery is being charged.
If the charging cable is connected to the vehicle,
you cannot start the engine or move the vehicle.
When the charging process begins, you can view
the charging prediction in the
Settings
menu
of the on-board computer. The charging predic-
tion is either the anticipated condition of charge
at the programmed departure time or the time
when the high-voltage battery will be fully
charged (
Y
page 272).
i
Depending on the temperature, the fan and
battery cooling system may audibly switch on
during the charging process.
Removing the charging cable
The high-voltage battery is fully charged when:
R
the charge level display reaches 100% in the
multifunction display (
Y
page 245)
R
the indicator lamp in the vehicle socket lights
up green after unlocking or locking the vehicle
X
Press and hold button B on the charging
cable connector and remove the charging
cable connector from the vehicle socket.
X
Close socket cap =.
X
Close charge socket flap :.
Charging the high-voltage battery at
the charging station
Before beginning the charging process at a
charging station without communication capa-
bilities, you must first activate the station, e.g.
using an RFID card. Observe the on-site opera-
tor instructions for the charging station.
The connection for the vehicle at a charging sta-
tion is identical to the connection on a wallbox
(
Y
page 185).
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Problems with the charging process
Problem
Possible causes/consequences and M Solutions
The charge socket flap
cannot be opened.
The charge socket flap is not unlocked.
X
Unlock the vehicle (
Y
page 79).
If the key battery is discharged:
X
Unlock the driver's door using the mechanical key (
Y
page 81).
or
X
Unlock the vehicle centrally from the inside (
Y
page 86).
The charge socket flap is unlocked, but the opening mechanism is
jammed.
X
Lock the vehicle and unlock it again.
If, after that, the opening mechanism is still jammed:
X
Consult a qualified specialist workshop.
The high-voltage battery
is not being charged.
The indicator lamp on the vehicle socket flashes red.
A malfunction has occurred during the initialization of the charging
process or during charging.
X
Disconnect the charging cable connector from the vehicle socket
and plug it back into the vehicle socket.
If the problem persists:
X
Have the mains socket checked for correct function or use another
mains socket.
or
X
Use a different charging station.
or
X
Consult a qualified specialist workshop.
Charging the high-voltage battery (PLUG-IN HYBRID vehicles)
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Problem
Possible causes/consequences and M Solutions
The indicator lamp on the vehicle socket does not light up.
No connection can be established between the vehicle and the exter-
nal power source.
X
Connect the charging cable once again.
If the problem persists:
X
Have the mains socket checked for correct function or use another
mains socket.
or
X
Use a different charging station.
or
X
Consult a qualified specialist workshop.
The charging cable con-
nector cannot be
removed from the vehi-
cle socket.
The snap fastener on the charging cable connector is locked.
X
Press and hold the button on the charging cable connector. The
snap fastener on the vehicle socket is unlocked.
X
Remove the charging cable connector from the vehicle socket.
If the snap fastener on the charging cable connector is locked:
X
Press and hold the button on the charging cable connector and try
to release the lock.
Online access to the vehicle
General information
G
WARNING
If you operate information systems and com-
munication equipment integrated in the vehi-
cle while driving, you will be distracted from
traffic conditions. You could also lose control
of the vehicle. There is a risk of an accident.
Only operate the equipment when the traffic
situation permits. If you are not sure that this
is possible, park the vehicle paying attention
to traffic conditions and operate the equip-
ment when the vehicle is stationary.
i
Operation of integrated information sys-
tems and communications equipment in
the vehicle: you must observe the legal
requirements for the country in which you are
currently driving.
Via the "My Mercedes Electric - Vehicle Home-
page", you can call up remote query and remote
configuration functions for your vehicle. This is
possible from an Internet-enabled computer, as
well as many modern smartphones.
Please call the Mercedes-Benz Customer Assis-
tance Center (USA) at the hotline number
1-800-FOR-MERCedes (1-800-367-6372) to
obtain the relevant Internet address.
Access to "My Mercedes Electric - Vehicle
Homepage" is dependent on the contractual
periods of mbrace. Activated access to the
mbrace emergency call system is required for
use.
In order to use the "My Mercedes Electric - Vehi-
cle Homepage ", you must agree to the local
terms of use.
Further information on supported devices, avail-
able languages and contractual periods can be
obtained from any authorized Mercedes-Benz
Center.
In order to call up the "Mercedes Electric - Vehi-
cle Homepage", the vehicle must be connected
to the Internet (
Y
page 189).
Notes on data protection
Bear in mind that the "My Mercedes Electric -
Vehicle Homepage" offers access to your data.
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Charging the high-voltage battery (PLUG-IN HYBRID vehicles)
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i
Prevent unauthorized persons from
accessing this data.
Every person who has access to the informa-
tion stated can use the functions on the "My
Mercedes Electric - Vehicle Homepage".
i
Information when selling a vehicle or
buying a used vehicle:
R
If you sell your vehicle, you are obliged to
delete the vehicle from your personal area
on the "My Mercedes Electric - Vehicle
Homepage".
R
If you have bought a used vehicle, it is pos-
sible that the previous owner still has
access to the "My Mercedes Electric - Vehi-
cle Homepage".
Calling up functions
The "My Mercedes Electric - Vehicle Homepage"
allows you access to information about your
vehicle and its functions using remote query and
remote configuration.
The following functions can be accessed:
R
request the current condition of charge of the
high-voltage battery
R
program the departure time (
Y
page 272)
R
set or activate the "Pre-entry climate control
at departure time" function (see the separate
COMAND operating instructions)
Information on additional functions and operat-
ing instructions can be found on the "My
Mercedes Electric - Vehicle Homepage".
Connecting the vehicle to the Internet
i
This function is not available in all countries
and requires activated access to the mbrace
emergency call system.
The "My Mercedes Electric - Vehicle Homepage"
can be used if the vehicle has a connection to
the Internet via a mobile phone network. The
necessary data is transmitted by radio. The vehi-
cle automatically recognizes whether a connec-
tion to the Internet is possible or not. No presets
are necessary.
i
Restrictions in reception are possible if the
vehicle is in an underground car park, for
example. Restrictions may also occur in areas
with poor mobile network coverage.
Parking
Important safety notes
G
WARNING
Flammable material such as leaves, grass or
twigs may ignite if they come into contact with
hot parts of the exhaust system or exhaust
gas flow. There is a risk of fire.
Park the vehicle so that no flammable mate-
rials come into contact with parts of the vehi-
cle which are hot. Take particular care not to
park on dry grassland or harvested grain
fields.
G
WARNING
If you leave children unsupervised in the vehi-
cle, they could set it in motion by, for example:
R
release the parking brake.
R
shift the automatic transmission out of the
parking position P.
R
start the engine.
In addition, they may operate vehicle equip-
ment and become trapped. There is a risk of
an accident and injury.
When leaving the vehicle, always take the
SmartKey with you and lock the vehicle. Never
leave children unsupervised in the vehicle.
!
Always secure the vehicle correctly against
rolling away. Otherwise, the vehicle or its driv-
etrain could be damaged.
To ensure that the vehicle is secured against
rolling away unintentionally:
R
the electric parking brake must be applied.
R
the transmission must be in position P and the
SmartKey must be removed from the ignition
lock.
R
the front wheels must be turned towards the
curb on steep uphill or downhill gradients.
R
the empty vehicle must be secured at the
front axle with a wheel chock or similar, for
example, on uphill or downhill gradients.
R
a laden vehicle must also be secured at the
rear axle with a wheel chock or similar, for
example, on uphill or downhill gradients.
Parking
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Switching off the engine
Important safety notes
G
WARNING
The automatic transmission switches to neu-
tral position N when you switch off the engine.
The vehicle may roll away. There is a risk of an
accident.
After switching off the engine, always switch
to parking position P. Prevent the parked vehi-
cle from rolling away by applying the parking
brake.
Using the SmartKey
X
Apply the electric parking brake.
X
Shift the transmission to position P.
X
Turn the SmartKey to position 0 in the ignition
lock and remove it.
The immobilizer is activated.
If you switch the engine off with the trans-
mission in position R or D, the automatic
transmission shifts to N automatically.
If you then open the driver's door or the front-
passenger door or remove the SmartKey from
the ignition, the automatic transmission shifts
to P automatically.
If you want the automatic transmission to
remain in neutral N, e.g. when having the vehicle
cleaned in an automatic car wash with a towing
system:
X
Switch on the ignition.
X
Depress the brake pedal and keep it
depressed.
X
Shift to neutral N.
X
Release the brake pedal.
X
Release the electric parking brake.
X
Switch off the ignition and leave the SmartKey
in the ignition lock.
Using the Start/Stop button
X
Apply the electric parking brake.
X
Shift the transmission to position P.
X
Press the Start/Stop button (
Y
page 162)
The engine stops and all the indicator lamps in
the instrument cluster go out.
When the driver's door is closed, this corre-
sponds to SmartKey position 1. When the
driver's door is open, this corresponds to
SmartKey position 0: "SmartKey removed".
If you switch the engine off with the transmis-
sion in position R or D, the automatic transmis-
sion shifts to N automatically.
If you then open the driver's or front-passenger
door, the automatic transmission shifts to P
automatically.
If you want the automatic transmission to
remain in neutral N, e.g. when having the vehicle
cleaned in an automatic car wash with a towing
system:
X
Switch on the ignition.
X
Depress the brake pedal and keep it
depressed.
X
Remove the Start/Stop button from the igni-
tion lock.
X
Insert the SmartKey into the ignition lock.
X
Shift to neutral N.
X
Release the brake pedal.
X
Release the electric parking brake.
X
Switch off the ignition and leave the SmartKey
in the ignition lock.
The engine can be switched off in an emergency
while the vehicle is in motion by pressing and
holding the Start/Stop button for three sec-
onds. This function operates independently of
the ECO start/stop automatic engine switch-off
function.
Electric parking brake
General notes
G
WARNING
If you leave children unsupervised in the vehi-
cle, they could set it in motion by, for example:
R
release the parking brake.
R
shift the automatic transmission out of the
parking position P.
R
start the engine.
In addition, they may operate vehicle equip-
ment and become trapped. There is a risk of
an accident and injury.
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When leaving the vehicle, always take the
SmartKey with you and lock the vehicle. Never
leave children unsupervised in the vehicle.
The function of the electric parking brake is
dependent on the on-board voltage. If the on-
board voltage is low or there is a malfunction in
the system, it may not be possible to apply the
released parking brake.
X
If this is the case, only park the vehicle on
level ground and secure it to prevent it rolling
away.
X
Shift the automatic transmission to position
P.
It may not be possible to release an applied
parking brake if the on-board voltage is low or
there is a malfunction in the system. Contact a
qualified specialist workshop.
The electric parking brake performs a function
test at regular intervals while the engine is
switched off. The sounds that can be heard while
this is occurring are normal.
Applying or releasing manually
X
To engage: push handle :.
When the electric parking brake is applied,
the red F (USA only) or ! (Canada
only) indicator lamp lights up in the instru-
ment cluster.
The electric parking brake can also be applied
when the SmartKey is removed.
X
To release: pull handle :.
The red F (USA only) or ! (Canada
only) indicator lamp in the instrument cluster
goes out.
The electric parking brake can only be released:
R
when the SmartKey is in position 1 or 2 in the
ignition lock (
Y
page 162) or
R
if the ignition was switched on using the
Start/Stop button
Applying automatically
The electric parking brake is automatically
applied when the transmission is in position P
and:
R
the engine is switched off or
R
the driver is not wearing a seat belt and the
driver's door is opened
To prevent the electric parking brake from being
automatically applied, pull handle :.
The electric parking brake is also engaged auto-
matically if:
R
DISTRONIC PLUS brings the vehicle to a
standstill or
R
the HOLD function is keeping the vehicle sta-
tionary
R
Active Parking Assist is keeping the vehicle
stationary
In addition, at least one of the following condi-
tions must be fulfilled:
R
the engine is switched off
R
the driver is not wearing a seat belt and the
driver's door is opened
R
there is a system malfunction
R
the power supply is insufficient
R
the vehicle is stationary for a lengthy period
The red F (USA only) or ! (Canada only)
indicator lamp in the instrument cluster lights
up.
The electric parking brake is not automatically
engaged if the engine is switched off by the ECO
start/stop function.
Releasing automatically
The electric parking brake is released automat-
ically when all of the following conditions are
fulfilled:
R
the engine is running.
R
the transmission is in position D or R.
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R
the seat belt has been fastened
R
you depress the accelerator pedal
If the automatic transmission is in position R,
the trunk lid must be closed.
If your seat belt is not fastened, the following
conditions must be fulfilled to automatically
release the electric parking brake:
R
the driver's door is closed.
R
you have shifted out of transmission position
P or you have previously driven faster than
2 mph (3 km/h).
Ensure that you do not depress the accelerator
pedal unintentionally. Otherwise the parking
brake will be released and the vehicle will start
to move.
Emergency braking
The vehicle can also be braked during an emer-
gency by using the electric parking brake.
X
While driving, push handle : of the electric
parking brake (
Y
page 190).
The vehicle is braked as long as you keep
handle : of the electric parking brake
pressed. The longer electric parking brake
handle : is depressed, the greater the brak-
ing force.
During braking:
R
a warning tone sounds
R
the
Please Release Parking Brake
mes-
sage appears
R
the red F (USA only) or ! (Canada
only) indicator lamp in the instrument cluster
flashes
When the vehicle has been braked to a stand-
still, the electric parking brake is engaged.
Parking the vehicle for a long period
If you leave the vehicle parked for longer than
four weeks, the battery may be damaged by
exhaustive discharging.
If you leave the vehicle parked for longer than six
weeks, the vehicle may suffer damage as a
result of lack of use.
X
Visit a qualified specialist workshop and seek
advice.
PLUG-IN HYBRID vehicles: observe the impor-
tant safety notes for the high-voltage battery
(
Y
page 374).
Driving tips
General driving tips
Important safety notes
G
WARNING
If you switch off the ignition while driving,
safety-relevant functions are only available
with limitations, or not at all. This could affect,
for example, the power steering and the brake
boosting effect. You will require considerably
more effort to steer and brake. There is a risk
of an accident.
Do not switch off the ignition while driving.
G
WARNING
If you operate mobile communication equip-
ment while driving, you will be distracted from
traffic conditions. You could also lose control
of the vehicle. There is a risk of an accident.
Only operate this equipment when the vehicle
is stationary.
Observe the legal requirements for the country
in which you are driving. Some jurisdictions pro-
hibit the driver from using a mobile phone while
driving a vehicle.
If you make a call while driving, always use
hands-free mode. Only operate the telephone
when the traffic situation permits. If you are
unsure, pull over to a safe location and stop
before operating the telephone.
Bear in mind that at a speed of only 30 mph
(approximately 50 km/h), the vehicle covers a
distance of 44 ft (approximately 14 m) per sec-
ond.
Drive sensibly – save fuel
Observe the following tips to save fuel:
X
The tires should always be inflated to the rec-
ommended tire pressure.
X
Remove unnecessary loads.
X
Remove roof racks when they are not needed.
X
Warm up the engine at low engine speeds.
X
Avoid frequent acceleration or braking.
X
Have all maintenance work carried out as
indicated by the service intervals in the Main-
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tenance Booklet or by the service interval dis-
play.
Fuel consumption also increases when driving in
cold weather, in stop-start traffic and in hilly ter-
rain.
Drinking and driving
G
WARNING
Drinking and driving and/or taking drugs and
driving are very dangerous combinations.
Even a small amount of alcohol or drugs can
affect your reflexes, perceptions and judg-
ment.
The possibility of a serious or even fatal acci-
dent is greatly increased when you drink or
take drugs and drive.
Do not drink or take drugs and drive or allow
anyone to drive who has been drinking or tak-
ing drugs.
Emission control
G
WARNING
Combustion engines emit poisonous exhaust
gases such as carbon monoxide. Inhaling
these exhaust gases leads to poisoning. There
is a risk of fatal injury. Therefore never leave
the engine running in enclosed spaces with-
out sufficient ventilation.
Certain engine systems are designed to keep
the level of poisonous components in exhaust
fumes within legal limits.
These systems only work at peak efficiency if
they are serviced exactly in accordance with the
manufacturer's specifications. Always have
work on the engine carried out at a qualified
specialist workshop . Mercedes-Benz recom-
mends that you use an authorized Mercedes-
Benz Center for this purpose. In particular, work
relevant to safety or on safety-related systems
must be carried out at a qualified specialist
workshop.
The engine settings must not be changed under
any circumstances. Furthermore, all specific
service work must be carried out at regular
intervals and in accordance with the Mercedes-
Benz service requirements. Details can be found
in the Maintenance Booklet.
ECO display
The ECO display provides feedback on how eco-
nomical your driving characteristics are. The
ECO display assists you in achieving the most
economical driving style for the selected set-
tings and prevailing conditions. Your driving
style can significantly influence the vehicle's
consumption.
The ECO display consists of three bars:
R
Accel.
R
Constant
R
Coasting
The percent value is the average value of the
three bars. The three bars and the mean value
begin at the value of 50%. A higher percentage
indicates a more economical driving style.
The ECO display does not indicate the actual fuel
consumption. A fixed percentage count in the
ECO display does not indicate a fixed consump-
tion.
Apart from driving style, consumption is
dependent on many factors such as, e.g.:
R
load
R
tire pressure
R
cold start
R
choice of route
R
electrical consumers switched on
These factors are not included in the ECO dis-
play.
The evaluation of your driving style is carried out
using the following three categories:
Driving tips
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R
Accel.
(evaluation of all acceleration pro-
cesses)
-
The bar fills up: moderate acceleration,
especially at higher speeds
-
The bar empties: sporty acceleration
R
Constant
(assessment of driving behavior at
all times)
-
The bar fills up: constant speed and avoid-
ance of unnecessary acceleration and
deceleration
-
The bar empties: fluctuations in speed
R
Coasting
(assessment of all deceleration
processes)
-
The bar fills up: anticipatory driving, keep-
ing your distance and early release of the
accelerator. The vehicle can coast without
use of the brakes.
-
The bar empties: frequent braking
An economical driving style specially requires
driving at moderate engine speeds.
To achieve a higher value in the categories
Accel.
and
Constant
,
R
observe the gearshift recommendations.
R
drive in drive program E
On long journeys at a constant speed, e.g. on the
highway, only the bar for
Constant
will change.
The ECO display summarizes the driving char-
acteristics from the start of the journey to its
completion. For this reason, the bars change
dynamically at the beginning of the journey. On
longer journeys, there are fewer changes. For
more dynamic changes, carry out a manual
reset.
For further information on the ECO display, see
(
Y
page 262).
Brakes
Important safety notes
G
WARNING
If you shift down on a slippery road surface in
an attempt to increase the engine's braking
effect, the drive wheels could lose their grip.
There is an increased danger of skidding and
accidents.
Do not shift down for additional engine brak-
ing on a slippery road surface.
Downhill gradients
!
On long and steep gradients, you must
reduce the load on the brakes by shifting to a
lower gear in good time. This allows you to
take advantage of the engine's braking effect.
This helps you to avoid overheating the
brakes and wearing them out excessively.
When you take advantage of engine braking, a
drive wheel may not turn for some time, e.g.
on a slippery road surface. This could cause
damage to the drive train. This type of damage
is not covered by the Mercedes-Benz war-
ranty.
Heavy and light loads
G
WARNING
If you rest your foot on the brake pedal while
driving, the braking system can overheat. This
increases the stopping distance and can even
cause the braking system to fail. There is a
risk of an accident.
Never use the brake pedal as a footrest. Never
depress the brake pedal and the accelerator
pedal at the same time.
!
Depressing the brake pedal constantly
results in excessive and premature wear to
the brake pads.
If the brakes have been subjected to a heavy
load, do not stop the vehicle immediately. Drive
on for a short while. This allows the airflow to
cool the brakes more quickly.
Wet roads
If you have driven for a long time in heavy rain
without braking, there may be a delayed reac-
tion from the brakes when braking for the first
time. This may also occur after the vehicle has
been washed or driven through deep water.
You have to depress the brake pedal more
firmly. Maintain a greater distance from the
vehicle in front.
After driving on a wet road or having the vehicle
washed, brake firmly while paying attention to
the traffic conditions. This will warm up the
brake discs, thereby drying them more quickly
and protecting them against corrosion.
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Limited braking performance on salt-
treated roads
If you drive on salted roads, a layer of salt resi-
due may form on the brake discs and brake
pads. This can result in a significantly longer
braking distance.
R
In order to prevent any salt build-up, apply the
brakes occasionally while paying attention to
the traffic conditions.
R
Carefully depress the brake pedal and the
beginning and end of a journey.
R
Maintain a greater distance to the vehicle
ahead.
Servicing the brakes
!
The brake fluid level may be too low, if:
R
if the red brake warning lamp lights up in
the instrument cluster and
R
you hear a warning tone while the engine is
running
Observe additional warning messages in the
multifunction display.
The brake fluid level may be too low due to
brake pad wear or leaking brake lines.
Have the brake system checked immediately.
Consult a qualified specialist workshop to
arrange this.
!
Vehicles with 4MATIC: function or per-
formance tests may only be carried out on a 2-
axle dynamometer. If you wish to operate the
vehicle on such a dynamometer, please con-
sult a qualified specialist workshop in
advance. You could otherwise damage the
drive train or the brake system.
!
Vehicles with 4MATIC: the ESP
®
system
operates automatically. The engine and the
ignition must therefore be switched off (the
SmartKey must be in position 0 or 1 in the
ignition lock or the Start/Stop button must be
in position 0 or 1) if the electric parking brake
is tested on a brake dynamometer.
Braking triggered automatically by ESP
®
may
cause severe damage to the brake system.
!
Vehicles without 4MATIC: the ESP
®
sys-
tem operates automatically. The engine and
the ignition must therefore be switched off
(the SmartKey must be in position 0 or 1 in the
ignition lock or the Start/Stop button must be
in position 0 or 1) if:
R
the electric parking brake is tested using a
brake dynamometer.
R
the vehicle is towed with one axle raised.
Braking triggered automatically by ESP
®
may
cause severe damage to the brake system.
All checks and maintenance work on the brake
system must be carried out at a qualified spe-
cialist workshop.
Have brake pads installed and brake fluid
replaced at a qualified specialist workshop.
If the brake system has only been subject to
moderate loads, you should test the functional-
ity of your brakes at regular intervals.
Information on BAS (Brake Assist) (
Y
page 69)
and BAS PLUS (Brake Assist PLUS) (
Y
page 69).
For safety reasons, Mercedes-Benz recom-
mends only installing the following brake disks
and brake pads/linings:
R
brake disks that have been approved by
Mercedes-Benz
R
brake pads/linings that have been approved
by Mercedes-Benz or that are of an equivalent
standard of quality
Other brake disks or brake pads/linings can
compromise the safety of your vehicle.
Always replace all brake disks and brake pads/
linings on an axle at the same time. Always
install new brake pads/linings when replacing
brake disks.
The vehicle is equipped with lightweight brake
disks to which the wheel assembly with rim and
threaded connection is matched.
The use of brake disks other than those
approved by Mercedes-Benz can change the
track width and is subject to approval, if appli-
cable.
Shock-type loads when handling the brake
discs, such as when changing wheels, can lead
to a reduction in comfort when driving with light-
weight brake discs. Avoid shock-type loads on
the lightweight brake disks, particularly on the
brake plate.
Mercedes-Benz recommends that you only use
brake fluid that has been specially approved for
your vehicle by Mercedes-Benz, or which corre-
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sponds to an equivalent quality standard. Brake
fluid which has not been approved for
Mercedes-Benz vehicles or which is not of an
equivalent quality could affect your vehicle's
operating safety.
AMG high-performance and ceramic
brakes
The high-performance brake system is only
available on Mercedes-AMG vehicles.
The AMG brake systems are designed for heavy
loads. This may lead to noise when braking. This
will depend on:
R
Speed
R
Braking force
R
Environmental conditions, such as tempera-
ture and humidity
The wear of individual components of the brake
system, such as the brake pads/linings or brake
discs, depends on the individual driving style
and operating conditions.
For this reason, it is impossible to state a mile-
age that will be valid under all circumstances. An
aggressive driving style will lead to high wear.
You can obtain more information on this from a
qualified specialist workshop.
New and replaced brake pads and discs only
reach their optimum braking effect after several
hundred kilometers of driving. Compensate for
this by applying greater force to the brake pedal.
Keep this in mind, and adapt your driving and
braking accordingly during this break-in period.
Excessive heavy braking results in correspond-
ingly high brake wear. Observe the brake wear
warning lamp in the instrument cluster and note
any brake status messages in the multifunction
display. Especially for high performance driving,
it is important to maintain and have the brake
system checked regularly.
Driving on wet roads
Hydroplaning
If water has accumulated to a certain depth on
the road surface, there is a danger of hydro-
planing occurring, even if:
R
you drive at low speeds
R
the tires have adequate tread depth
For this reason, in the event of heavy rain or in
conditions in which hydroplaning may occur,
you must drive in the following manner:
R
lower your speed
R
avoid ruts
R
avoid sudden steering movements
R
brake carefully
Driving on flooded roads
!
Do not drive through flooded areas. Check
the depth of any water before driving through
it. Drive slowly through standing water. Oth-
erwise, water may enter the vehicle interior or
the engine compartment. This can damage
the electronic components in the engine or
the automatic transmission. Water can also
be drawn in by the engine's air suction nozzles
and this can cause engine damage.
Winter driving
G
WARNING
If you shift down on a slippery road surface in
an attempt to increase the engine's braking
effect, the drive wheels could lose their grip.
There is an increased danger of skidding and
accidents.
Do not shift down for additional engine brak-
ing on a slippery road surface.
G
DANGER
If the exhaust pipe is blocked or adequate
ventilation is not possible, poisonous gases
such as carbon monoxide (CO) may enter the
vehicle. This is the case, e.g. if the vehicle
becomes trapped in snow. There is a risk of
fatal injury.
If you leave the engine or the auxiliary heating
running, make sure the exhaust pipe and area
around the vehicle are clear of snow. To
ensure an adequate supply of fresh air, open a
window on the side of the vehicle that is not
facing into the wind.
Have your vehicle winter-proofed at a qualified
specialist workshop at the onset of winter.
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Drive particularly carefully on slippery road sur-
faces. Avoid sudden acceleration, steering and
braking maneuvers. Do not use the cruise con-
trol or DISTRONIC PLUS.
If the vehicle threatens to skid or cannot be
stopped when moving at low speed:
X
Shift the transmission to position N.
The outside temperature indicator is not
designed to serve as an ice-warning device and
is therefore unsuitable for that purpose.
Changes in the outside temperature are dis-
played after a short delay.
Indicated temperatures just above the freezing
point do not guarantee that the road surface is
free of ice. The road may still be icy, especially in
wooded areas or on bridges.
You should pay special attention to road condi-
tions when temperatures are around freezing
point.
For more information on driving with snow
chains, see (
Y
page 386).
For more information on driving with summer
tires, see (
Y
page 386).
Observe the notes in the "Winter operation" sec-
tion (
Y
page 386).
Driving systems
Mercedes-Benz Intelligent Drive
Mercedes-Benz Intelligent Drive stands for inno-
vative driver assistance and safety systems
which enhance comfort and support the driver in
critical situations. With these intelligent co-ordi-
nated systems Mercedes-Benz has set a mile-
stone on the path towards autonomous driving.
Mercedes-Benz Intelligent Drive embraces all
elements of active and passive safety in one well
thought out system – for the safety of the vehi-
cle occupants and that of other road users.
Further information on driving safety systems
(
Y
page 68).
Cruise control
General notes
Cruise control maintains a constant road speed
for you. It brakes automatically in order to avoid
exceeding the set speed. Change into a lower
gear in good time on long and steep downhill
gradients. This is especially important if the
vehicle is laden. By doing so, you will make use
of the braking effect of the engine. This relieves
the load on the brake system and prevents the
brakes from overheating and wearing too
quickly.
You can use cruise control if you want to drive at
a steady speed for a prolonged period of time.
You can store any road speed above 20 mph
(30 km/h).
Important safety notes
If you fail to adapt your driving style, cruise con-
trol can neither reduce the risk of an accident
nor override the laws of physics. Cruise control
cannot take into account the road, traffic and
weather conditions. Cruise control is only an
aid. You are responsible for the distance to the
vehicle in front, for vehicle speed, for braking in
good time and for staying in your lane.
Do not use cruise control:
R
in road and traffic conditions which do not
allow you to maintain a constant speed, e.g. in
heavy traffic or on winding roads
R
on slippery road surfaces. Braking or accel-
erating could cause the drive wheels to lose
traction and the vehicle could then skid
R
when there is poor visibility, e.g. due to fog,
heavy rain or snow
If there is a change of drivers, advise the new
driver of the speed stored.
Cruise control lever
:
To activate or increase speed
;
To activate or reduce speed
=
To deactivate cruise control
?
To activate at the current speed/last stored
speed
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When you activate cruise control, the stored
speed is shown in the multifunction display for
five seconds. In the speedometer, the segments
between the stored speed and the maximum
speed light up.
Storing and maintaining the current
speed
You can store the current speed if you are driv-
ing faster than 20 mph (30 km/h).
X
Accelerate the vehicle to the desired speed.
X
Briefly press the cruise control lever up : or
down ;.
X
Remove your foot from the accelerator pedal.
Cruise control is activated. The vehicle auto-
matically maintains the stored speed.
i
Cruise control may be unable to maintain
the stored speed on uphill gradients. The
stored speed is resumed when the gradient
evens out. Cruise control maintains the
stored speed on downhill gradients by auto-
matically applying the brakes.
Calling up the last speed stored
G
WARNING
If you call up the stored speed and it is lower
than the current speed, the vehicle deceler-
ates. If you do not know the stored speed, the
vehicle could decelerate unexpectedly. There
is a risk of an accident.
Pay attention to the road and traffic condi-
tions before calling up the stored speed. If you
do not know the stored speed, store the
desired speed again.
X
Briefly pull the cruise control lever towards
you :.
X
Remove your foot from the accelerator pedal.
The first time cruise control is activated, it
stores the current speed or regulates the
speed of the vehicle to the previously stored
speed.
Setting a speed
Keep in mind that it may take a brief moment
until the vehicle has accelerated or braked to
the speed set.
X
Press the cruise control lever up : for a
higher speed or down ; for a lower speed.
X
To adjust the set speed in 1 mph incre-
ments (1 km/h increments): briefly press
the cruise control lever up : or down ; to
the pressure point.
Every time the cruise control lever is pressed
up : or down ; the last speed stored is
increased or reduced.
X
To adjust the set speed in 5 mph incre-
ments (10 km/h increments): briefly press
the cruise control lever up : or down ; to
the pressure point.
Every time the cruise control lever is pressed
up : or down ; the last speed stored is
increased or reduced.
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Cruise control is not deactivated if you
depress the accelerator pedal. If you acceler-
ate to overtake, cruise control adjusts the
vehicle's speed to the last speed stored after
you have finished overtaking.
Deactivating cruise control
There are several ways to deactivate cruise con-
trol:
X
Briefly press cruise the control lever for-
wards : .
or
X
Brake.
Cruise control is automatically deactivated if:
R
you engage the electric parking brake
R
you are driving at less than 20 mph (30 km/h)
R
ESP
®
intervenes or you deactivate ESP
®
R
you shift the transmission to position N while
driving
If cruise control is deactivated, you will hear a
warning tone. You will see the
Cruise Con‐
trol Off
message in the multifunction display
for approximately five seconds.
i
When you switch off the engine, the last
speed stored is cleared.
DISTRONIC PLUS
General notes
DISTRONIC PLUS regulates the speed and auto-
matically helps you maintain the distance to the
vehicle detected in front. Vehicles are detected
with the aid of the radar sensor system.
DISTRONIC PLUS brakes automatically so that
the set speed is not exceeded.
Change into a lower gear in good time on long
and steep downhill gradients. This is especially
important if the vehicle is laden. By doing so, you
will make use of the braking effect of the engine.
This relieves the load on the brake system and
prevents the brakes from overheating and wear-
ing too quickly.
If DISTRONIC PLUS detects that there is a risk of
a collision, you will be warned visually and
acoustically. DISTRONIC PLUS cannot prevent a
collision without your intervention. An intermit-
tent warning tone will then sound and the dis-
tance warning lamp will light up in the instru-
ment cluster. Brake immediately in order to
increase the distance to the vehicle in front or
take evasive action provided it is safe to do so.
DISTRONIC PLUS operates in range between
0 mph (0 km/h) and 120 mph (200 km/h).
Do not use DISTRONIC PLUS while driving on
roads with steep gradients.
As DISTRONIC PLUS transmits radar waves, it
can resemble the radar detectors of the respon-
sible authorities. You can refer to the relevant
chapter in the Operator's Manual if questions
are asked about this.
i
USA only: This device has been approved by
the FCC as a "Vehicular Radar System". The
radar sensor is intended for use in an auto-
motive radar system only. Removal, tamper-
ing, or altering of the device will void any war-
ranties, and is not permitted by the FCC. Do
not tamper with, alter, or use in any non-
approved way.
Any unauthorized modification to this device
could void the user's authority to operate the
equipment.
i
Canada only: This device complies with
RSS-210 of Industry Canada. Operation is
subject to the following two conditions:
1. This device may not cause harmful inter-
ference, and
2. This device must accept any interference
received, including interference that may
cause undesired operation of the device.
Removal, tampering, or altering of the device
will void any warranties, and is not permitted.
Do not tamper with, alter, or use in any non-
approved way.
Any unauthorized modification to this device
could void the user's authority to operate the
equipment.
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