Mersedes Maybach S-Class. Service Manual — part 10

X

To activate: press ECO button :.

Indicator lamp ; lights up.

If drive program S or M is active, the auto-

matic transmission switches to drive program

C.

If indicator lamp ; is off, the ECO start/stop

function has been deactivated manually or as

the result of a malfunction. The engine will then

not be switched off automatically when the vehi-

cle stops.

If drive program S or M has been selected, the

ECO start/stop function is always deactivated.

If you switch on the ECO start/stop function

while drive program S is selected, the drive pro-

gram automatically switches to C.

168

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Problems with the engine

Problem

Possible causes/consequences and M Solutions

The engine does not

start. The starter motor

can be heard.

R

There is a malfunction in the engine electronics.

R

There is a malfunction in the fuel supply.

Before attempting to start the engine again:

X

Turn the SmartKey back to position 0 in the ignition lock.

or

X

Press the Start/Stop button repeatedly until all indicator lamps in

the instrument cluster go out.

X

Try to start the engine again (

Y

page 164). Avoid excessively long

and frequent attempts to start the engine as these will drain the

battery.

If the engine does not start after several attempts:

X

Consult a qualified specialist workshop.

The engine does not

start. You cannot hear

the starter motor.

The on-board voltage is too low because the battery is too weak or

discharged.

X

Jump-start the vehicle (

Y

page 376).

If the engine does not start despite attempts to jump-start it:

X

Consult a qualified specialist workshop.

The starter motor was exposed to a thermal load that was too high.

X

Try to start the engine again.

If the engine still does not start:

X

Consult a qualified specialist workshop.

The engine is not running

smoothly and is misfir-

ing.

There is a malfunction in the engine electronics or in a mechanical

component of the engine management system.

X

Only depress the accelerator pedal slightly.

Otherwise, non-combusted fuel may get into the catalytic converter

and damage it.

X

Have the cause rectified immediately at a qualified specialist work-

shop.

The coolant temperature

gauge shows a value

above 248 ‡ (120 †).

The coolant level is too low. The coolant is too hot and the engine is no

longer being cooled sufficiently.

X

Stop as soon as possible and allow the engine and the coolant to

cool down.

X

Check the coolant level (

Y

page 356). Observe the warning notes

as you do so and add coolant if necessary.

Driving

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Automatic transmission

Important safety notes

G

WARNING

If the engine speed is above the idling speed

and you engage transmission position D or R,

the vehicle could pull away suddenly. There is

a risk of an accident.
When engaging transmission position D or R,

always firmly depress the brake pedal and do

not simultaneously accelerate.

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.

Observe the important safety notes for PLUG-IN

HYBRID vehicles (

Y

page 42).

DIRECT SELECT lever

Overview of transmission positions

j

Park position with parking lock

k

Reverse gear

i

Neutral

h

Drive

The DIRECT SELECT lever is on the right of the

steering column.

The DIRECT SELECT lever always returns to its

original position. The current transmission posi-

tion P, R, N or D appears in the transmission

position display (

Y

page 172) in the multifunc-

tion display.

Engaging park position P
!

If the engine speed is too high or the vehicle

is moving, do not shift the automatic trans-

mission directly from D to R, from R to D or

directly to P. The automatic transmission

could otherwise be damaged.

j

Park position with parking lock

k

Reverse gear

i

Neutral

h

Drive

X

Push the DIRECT SELECT lever in the direction

of arrow P.

Engaging park position P automatically

Park position P is automatically engaged if:

R

you switch off the engine using the SmartKey

and remove the SmartKey

R

you switch off the engine using the SmartKey

or using the Start/Stop button and open the

driver's door or front-passenger door

R

the driver's door is opened when the vehicle is

stationary or driving at very low speed and the

transmission is in position D or R

Under certain conditions, the automatic trans-

mission shifts automatically to transmission

position P if the HOLD function or DISTRONIC

PLUS is activated. Observe the information on

the HOLD function (

Y

page 209) and on

DISTRONIC PLUS (

Y

page 203).

170

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Engaging reverse gear R
!

Only shift the automatic transmission to R

when the vehicle is stationary.

X

If the transmission is in position D or N: push

the DIRECT SELECT lever up past the first

point of resistance.

X

If the transmission is in position P: depress

the brake pedal and push the DIRECT SELECT

lever up past the first point of resistance.

The ECO start/stop function is not available

when reverse gear is engaged. Further informa-

tion on the ECO start/stop function

(

Y

page 166).

Shifting to neutral N

G

WARNING

If children are left unsupervised in the vehicle,

they could:

R

open the doors, thus endangering other

people or road users.

R

get out and disrupt traffic.

R

operate the vehicle's equipment.

Additionally, children could set the vehicle in

motion if, for example, they:

R

release the parking brake.

R

shifting the automatic transmission out of

park position P

R

Start the engine.

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 or animals unattended in the

vehicle. Always keep the SmartKey out of

reach of children.

X

If the transmission is in position D or R: push

the DIRECT SELECT lever up or down to the

first point of resistance.

X

If the transmission is in position P: depress

the brake pedal and push the DIRECT SELECT

lever up or down to the first point of resist-

ance.

If you switch the engine off with the transmis-

sion in position R or D, the automatic transmis-

sion shifts to N automatically.

With the SmartKey: if you then open the driv-

er's door or the front-passenger door or remove

the SmartKey from the ignition, the automatic

transmission shifts to P automatically.
With the Start/Stop button: if you then open

the driver's door or the front-passenger door,

the automatic transmission shifts to P automat-

ically.

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:
Using the SmartKey:

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.

With the Start/Stop button:

X

Remove the Start/Stop button from the igni-

tion lock.

X

Insert the SmartKey into the ignition lock.

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.

Engaging drive position D

X

If the transmission is in position R or N: push

the DIRECT SELECT lever down past the first

point of resistance.

X

If the transmission is in position P: depress

the brake pedal and push the DIRECT SELECT

lever down past the first point of resistance.

Automatic transmission

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Transmission position display

All vehicles (except Mercedes-AMG

vehicles)

The current transmission position and drive pro-

gram appear in the multifunction display.

:

Transmission position

;

Gear

=

Drive program

The arrows in the transmission position display

show how and into which transmission positions

you can shift using the DIRECT SELECT lever.

If the transmission position display in the mul-

tifunction display is not working, you should pull

away carefully to check whether the desired

transmission position is engaged. Ideally, you

should select transmission position D and drive

program E (for PLUG-IN HYBRID vehicles select

drive program E+) or S.

Mercedes-AMG vehicles

The current transmission position and drive pro-

gram appear in the multifunction display.

:

Transmission position

;

Drive program

The arrows in the transmission position display

show how and into which transmission positions

you can shift using the DIRECT SELECT lever.

If the transmission position display in the mul-

tifunction display is not working, you should pull

away carefully to check whether the desired

transmission position is engaged. Ideally, you

should select transmission position D and drive

program C or S.

Transmission positions

B

Park position
Only shift the transmission into posi-

tion P when the vehicle is stationary

(

Y

page 189). The parking lock

should not be used as a brake when

parking. Always apply the electronic

parking brake in addition to the park-

ing lock in order to secure the vehi-

cle.

If the vehicle electronics are malfunc-

tioning, the transmission may be

locked in position P. Have the vehicle

electronics checked immediately at a

qualified specialist workshop.

C

Reverse gear
Only shift the transmission into posi-

tion R when the vehicle is stationary.

A

Neutral
Do not shift the transmission to N

while driving. Otherwise, the auto-

matic transmission could be dam-

aged.

No power is transmitted from the

engine to the drive wheels.

Releasing the brakes will allow you to

move the vehicle freely, e.g. to push

it or tow it.
If ESP

®

is deactivated or faulty: shift

the transmission to position N if the

vehicle is in danger of skidding, e.g.

on icy roads.

!

Rolling in neutral N can damage

the drive train.

7

Drive
The automatic transmission changes

gear automatically. All forward gears

are available.

172

Automatic transmission

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Driving tips

Changing gear

The automatic transmission shifts to the indi-

vidual gears automatically when it is in trans-

mission position D. This automatic gear shifting

behavior is determined by:

R

the selected drive program (

Y

page 173)

R

the position of the accelerator pedal

(

Y

page 173)

R

the road speed

Accelerator pedal position

Your style of driving influences how the auto-

matic transmission shifts gear:

R

little throttle: early upshifts

R

more throttle: late upshifts

Kickdown

Use kickdown for maximum acceleration.

X

Depress the accelerator pedal beyond the

pressure point.

The automatic transmission shifts to a lower

gear depending on the engine speed.

X

Ease off the accelerator pedal once the

desired speed is reached.

The automatic transmission shifts back up.

Rocking the vehicle free

Rocking the vehicle free by shifting back and

forth between transmission positions D and R

can help to free a vehicle that has become stuck

in mud or snow. The vehicle's engine manage-

ment restricts switching between transmission

positions D and R to speeds up to a maximum of

5 mph (9 km/h). To shift back and forth between

transmission positions D and R, move the

DIRECT SELECT lever up and down past the

point of resistance.

Program selector button

This section describes the program selector but-

ton for all vehicles except PLUG-IN HYBRID vehi-

cles. Information on automatic drive programs

for PLUG-IN HYBRID vehicles (

Y

page 250).

X

All vehicles (except Mercedes-AMG vehi-

cles and PLUG-IN HYBRID): press program

selector button : to change the drive pro-

gram.

The selected drive program appears in the

multifunction display.

X

Mercedes-AMG vehicles: press program

selector button : repeatedly until the letter

for the desired drive program appears in the

multifunction display.

The program selector button influences:

R

the drive program (

Y

page 174)

R

the engine management

On Mercedes-AMG vehicles, drive program E is

called drive program C.
The automatic transmission switches to auto-

matic drive program E (drive program C in

Mercedes-AMG vehicles).

All vehicles (except Mercedes-AMG vehicles

and PLUG-IN HYBRID vehicles)

E Economy

Comfortable, economical

driving

S Sport

Sporty driving style

Automatic transmission

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You can also activate manual drive program M

using the steering wheel paddle shifters

(

Y

page 174). In manual drive program M, you

can briefly change gear yourself by using the

steering wheel paddle shifters.

Mercedes-AMG vehicles

C Controlled

Efficiency

Comfortable, economical

driving

S Sport

Sporty driving style

M Manual

Manual gear shifting

Permanent drive program M is only available for

Mercedes-AMG vehicles.

Further information about permanent drive pro-

gram M (

Y

page 175).

You can also activate manual drive program M

using the steering wheel paddle shifters

(

Y

page 174). In manual drive program M, you

can briefly change gear yourself by using the

steering wheel paddle shifters.

For further information on the automatic drive

program, see (

Y

page 174).

Steering wheel paddle shifters

You can activate manual drive program M in the

E (C in AMG vehicles) and S automatic drive

programs using steering wheel paddle shift-

ers : and ; (

Y

page 174). In manual drive

program M, you can briefly change gear yourself

by using the steering wheel paddle shifters.

Mercedes-AMG vehicles: you can also activate

manual drive program M with the program

selector button (

Y

page 175). In manual drive

program M, you can permanently change gear

yourself by using the steering wheel paddle

shifters.

Automatic drive program

Automatic drive program E

Drive program E (drive program C on Mercedes-

AMG vehicles) is characterized by the following:

R

comfort-oriented engine settings.

R

optimal fuel consumption resulting from the

automatic transmission shifting up sooner.

R

the vehicle pulling away more gently in

forward and reverse gears, unless the accel-

erator pedal is depressed fully.

R

the vehicle having improved driving stability,

for example on slippery road surfaces.

R

the automatic transmission shifting up

sooner. This results in the vehicle being driven

at lower engine speeds and the wheels being

less likely to spin.

Automatic drive program S

Drive program S is characterized by the follow-

ing:

R

sporty engine settings.

R

the vehicle pulling away in first gear.

R

the automatic transmission shifting up later.

the fuel consumption possibly being higher as

a result of the later automatic transmission

shift points.

Manual drive program M

General notes

In this drive program, you can briefly change

gear yourself by using the steering wheel paddle

shifters. The transmission must be in position D.
You can activate manual drive program M in the

E (C in Mercedes-AMG vehicles) and S auto-

matic drive programs.

Mercedes-AMG vehicles: as well as temporary

drive program M, you can also activate perma-

nent drive program M. Further information

about permanent drive program M

(

Y

page 175).

Activating

X

Shift the transmission to position D.

X

Pull the left or right steering wheel paddle

shifter (

Y

page 174).

Manual drive program M is temporarily acti-

vated.

174

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All vehicles (except Mercedes-AMG vehi-

cles:) M and the selected gear appear in the

multifunction display.

Further information on activating manual drive

program M on PLUG-IN HYBRID vehicles

(

Y

page 250).

Shifting gears

If you pull on the left or right steering wheel

paddle shifter, the automatic transmission

switches to manual drive program M for a limi-

ted amount of time. Depending on which paddle

shifter is pulled, the automatic transmission

immediately shifts into the next gear down or

up, if permitted.

X

To shift up: pull the right-hand steering wheel

paddle shifter (

Y

page 174).

The automatic transmission shifts up to the

next gear.

If the maximum engine speed on the currently

engaged gear is reached and you continue to

accelerate, the automatic transmission auto-

matically shifts up in order to prevent engine

damage.

Mercedes-AMG vehicles: the automatic

transmission will not shift up to the next gear

when the engine speed is very low.

X

To shift down: pull on the left-hand steering

wheel paddle shifter (

Y

page 174).

The automatic transmission shifts down to

the next gear.

If the engine exceeds the maximum engine

speed when shifting down, the automatic

transmission protects against engine damage

by not shifting down.

Automatic down shifting occurs when coast-

ing.

Shift recommendation

The gearshift recommendations assist you in

adopting an economical driving style. The rec-

ommended gear is shown in the multifunction

display.

X

Shift to recommended gear ; according to

gearshift recommendation : when shown in

the multifunction display of the instrument

cluster.

Deactivating

If you have activated manual drive program M, it

will remain active for a certain amount of time.

Under certain conditions the minimum amount

of time is extended, e.g. in the case of lateral

acceleration, during an overrun phase or when

driving on steep terrain.

If manual drive program M has been deactiva-

ted, the automatic transmission shifts into the

automatic drive program that was last selected.
You can also deactivate manual drive program

M yourself:

X

Pull on the right-hand steering wheel paddle

shifter and hold it in place (

Y

page 174).

or

X

Use the DIRECT SELECT lever to switch the

transmission position.

or

X

Use the program selector button to change

the drive program (

Y

page 173).

Manual drive program M is deactivated. The

automatic transmission switches to the pre-

viously activated drive program E (drive pro-

gram C on Mercedes-AMG vehicles) or S.

Manual drive program (Mercedes-

AMG vehicles)

General information

In this drive program, you can permanently

change gear yourself by using the steering

wheel paddle shifters. The transmission must be

in position D.
Manual drive program M is different from drive

program S with regard to spontaneity, respon-

siveness and smoothness of gear changes.

As well as this permanent drive program M, you

can also activate temporary drive program

M (

Y

page 174).

Automatic transmission

175

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Switching on the manual drive program

In manual drive program M, you can change gear

using the steering wheel paddle shifters if the

transmission is in position D. You can see the

currently selected drive program and which gear

is engaged in the multifunction display.

X

Press the program selector button

(

Y

page 173) repeatedly until M appears in

the multifunction display.

Upshifting
!

In manual drive program M, the automatic

transmission does not shift up automatically

even when the engine limiting speed for the

current gear is reached. When the engine lim-

iting speed is reached, the fuel supply is cut to

prevent the engine from overrevving. Always

make sure that the engine speed does not

reach the red area of the tachometer. There is

otherwise a risk of engine damage.

:

Gear indicator

;

Upshift indicator

Before the engine speed reaches the red area,

an upshift indicator will be shown in the multi-

function display.

X

When message ; appears in the multifunc-

tion display, pull on the right-hand steering

wheel paddle shifter.

Downshifting

X

Pull the left-hand steering wheel paddle

shifter (

Y

page 174).

The automatic transmission shifts down to

the next gear if this is permissible.

Maximum acceleration

X

Pull the left-hand steering wheel paddle

shifter until the transmission selects the opti-

mum gear according to the speed.

If you slow down or stop without shifting down,

the automatic transmission automatically shifts

down.

Switching off the manual drive program

X

Press the program selector button

(

Y

page 173) repeatedly until C or S appears

in the multifunction display.

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Automatic transmission

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Problems with the transmission

Problem

Possible causes/consequences and M Solutions

The transmission has

problems shifting gear.

The transmission is losing oil.

X

Have the transmission checked at a qualified specialist workshop

immediately.

The acceleration ability

is deteriorating.

The transmission no lon-

ger changes gear.

The transmission is in emergency mode.

7G-TRONIC: it is only possible to shift into second gear and reverse

gear.

9G-TRONIC: it is only partly possible to engage the gears or the trans-

mission is in position N.

X

Stop the vehicle.

X

Shift the transmission to position P.

X

Switch off the engine.

X

Wait at least ten seconds before restarting the engine.

X

Shift the transmission to position D or R.

7G-TRONIC: If D is selected, the transmission shifts into second

gear, if R is selected, the transmission shifts into reverse gear.

X

Have the transmission checked at a qualified specialist workshop

immediately.

Problems with PLUG-IN HYBRID operation (

Y

page 254).

Transfer case

This section is only valid for vehicles with 4-

wheel drive (4MATIC). Power is always trans-

mitted to both axles.

!

Performance tests may only be carried out

on a 2-axle dynamometer. The brake system

or transfer case could otherwise be damaged.

Contact a qualified specialist workshop for a

performance test.

!

Since ESP

®

engages automatically, the igni-

tion must be switched off (the SmartKey or

Start/Stop button must be in position 0 or 1)

if:

R

the electric parking brake is being tested

on a brake dynamometer

R

the vehicle is being towed with only one

axle raised (not permitted for vehicles with

4MATIC).

The brake system could otherwise be dam-

aged.

!

Vehicles with 4MATIC must not be towed

with either the front or the rear axle raised, as

doing so will damage the transmission.

Refueling

Important safety notes

G

WARNING

Fuel is highly flammable. If you handle fuel

incorrectly, there is a risk of fire and explo-

sion.
You must avoid fire, open flames, creating

sparks and smoking. Switch off the engine

and, if applicable, the auxiliary heating before

refueling.

G

WARNING

Fuel is poisonous and hazardous to health.

There is a risk of injury.
You must make sure that fuel does not come

into contact with your skin, eyes or clothing

Refueling

177

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and that it is not swallowed. Do not inhale fuel

vapors. Keep fuel away from children.
If you or others come into contact with fuel,

observe the following:

R

Wash away fuel from skin immediately

using soap and water.

R

If fuel comes into contact with your eyes,

immediately rinse them thoroughly with

clean water. Seek medical assistance with-

out delay.

R

If fuel is swallowed, seek medical assis-

tance without delay. Do not induce vomit-

ing.

R

Immediately change out of clothing which

has come into contact with fuel.

G

WARNING

Electrostatic buildup can create sparks and

ignite fuel vapors. There is a risk of fire and

explosion.
Always touch the vehicle body before opening

the fuel filler flap or touching the fuel pump

nozzle. Any existing electrostatic buildup is

thereby discharged.

Do not get into the vehicle again during the refu-

eling process. Otherwise, electrostatic charge

could build up again.

!

Do not use diesel to refuel vehicles with a

gasoline engine. Do not switch on the ignition

if you accidentally refuel with the wrong fuel.

Otherwise, the fuel will enter the fuel system.

Even small amounts of the wrong fuel could

result in damage to the fuel system and the

engine. Notify a qualified specialist workshop

and have the fuel tank and fuel lines drained

completely.

!

Overfilling the fuel tank could damage the

fuel system.

!

Take care not to spill any fuel on painted

surfaces. You could otherwise damage the

paintwork.

!

Use a filter when refueling from a fuel can.

Otherwise, the fuel lines and/or injection sys-

tem could be blocked by particles from the

fuel can.

If you overfill the fuel tank, fuel could spray out

when the fuel pump nozzle is removed.

For further information on fuel and fuel quality

(

Y

page 428).

Refueling

General information

Pay attention to the important safety notes

(

Y

page 177).

PLUG-IN HYBRID vehicles: pressure in the fuel

tank must be released before refueling.

Except PLUG-IN HYBRID vehicles: if you

unlock/lock the vehicle from the outside, the

fuel filler flap also unlocks/locks.

The position of the fuel filler cap is displayed in

the instrument cluster 8. The arrow next to

the filling pump indicates the side of the vehicle.

Preparing to refuel

X

Switch off the engine.

X

Open the driver's door.

The on-board electronics now have status 0.

This is the same as the SmartKey having been

removed.

or, if the SmartKey is inserted in the ignition

lock:

X

Remove the SmartKey from the ignition lock.

Opening the fuel filler flap (except

PLUG-IN HYBRID vehicles)

:

To open the fuel filler flap

;

To insert the fuel filler cap

=

Tire pressure table

?

Fuel type to be used

178

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X

Press the fuel filler flap in the direction of

arrow :.

The fuel filler flap swings up.

X

Turn the fuel filler cap counterclockwise and

remove it.

X

Insert the fuel filler cap into the holder on the

inside of the fuel filler flap.

X

Completely insert the filler neck of the fuel

pump nozzle into the tank, hook in place and

refuel.

X

Only fill the tank until the pump nozzle

switches off.

Do not add any more fuel after the pump stops

filling for the first time. Otherwise, fuel may

leak out.

Opening the fuel filler flap (PLUG-IN

HYBRID vehicles)

X

Pull switch :.

Indicator lamp ; flashes and the

Please

Wait Depressurizing Tank

message

appears in the multifunction display.

If the fuel filler cap is open, indicator lamp ;

lights up.

The

Tank is Depressurized Ready for

Refueling

message appears in the multi-

function display.

Please be sure to observe the information on

refueling on the fuel filler flap.

There is a malfunction if:

R

indicator lamp ; first flashes and then goes

out

R

the yellow engine diagnostics warning lamp

lights up

i

From a speed of 2 km/h, the fuel filler cap

can no longer be opened.

i

The opening process for the fuel filler cap

may take up to 15 minutes.

:

To insert the fuel filler cap

;

Tire pressure table

=

Fuel type to be used

X

Turn the fuel filler cap counterclockwise and

remove it.

X

Insert the fuel filler cap into the holder on the

inside of the fuel filler flap.

X

Completely insert the filler neck of the fuel

pump nozzle into the tank, hook in place and

refuel.

X

Only fill the tank until the pump nozzle

switches off.

Do not add any more fuel after the pump stops

filling for the first time. Otherwise, fuel may

leak out.

Closing the fuel filler flap

X

Replace the cap on the filler neck and turn

clockwise until it engages audibly.

X

Close the fuel filler flap.

Close the fuel filler flap before locking the vehi-

cle.

If you drive at speeds above 1 mph (2 km/h)

with the fuel filler flap open, the

Fuel Filler

Flap Open

message is shown in the multifunc-

tion display.

If you are driving with the fuel filler cap open, the

8 reserve fuel warning lamp flashes. A mes-

sage appears in the multifunction display

(

Y

page 296).

In addition, the ; Check Engine warning

lamp may light up (

Y

page 320).

i

For further information on warning and indi-

cator lamps in the instrument cluster, see

(

Y

page 320).

Refueling

179

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Problems with fuel and the fuel tank

Problem

Possible causes/consequences and M Solutions

Fuel is leaking from the

vehicle.

G

WARNING

The fuel line or the fuel tank is faulty.

Risk of explosion or fire.

X

Apply the electric parking brake.

X

Switch off the engine.

X

Make sure that the ignition is switched off (

Y

page 162).

or

X

When using the SmartKey, turn the SmartKey to position 0 in the

ignition lock and remove it (

Y

page 162).

X

Do not restart the engine under any circumstances.

X

Consult a qualified specialist workshop.

The fuel filler flap cannot

be opened.

The fuel filler flap is not unlocked.

X

Unlock the vehicle (

Y

page 79).

X

PLUG-IN HYBRID Vehicles: depressurize the fuel tank

(

Y

page 178).

The SmartKey battery is discharged or nearly discharged.

X

Unlock the vehicle using the mechanical key (

Y

page 81).

The fuel filler flap is unlocked, but the opening mechanism is jammed.

X

Consult a qualified specialist workshop.

Charging the high-voltage battery

(PLUG-IN HYBRID vehicles)

Important safety notes

G

DANGER

The vehicle's high-voltage electrical system is

under high voltage. If you modify components

in the vehicle's high-voltage electrical system

or touch damaged components, you may be

electrocuted. The components in the vehi-

cle's high-voltage electrical system may be

damaged in an accident, although the damage

is not visible. There is a risk of fatal injury.
Following an accident, do not touch any high-

voltage components and never modify the

vehicle's high-voltage electrical system. Have

the vehicle towed away after an accident and

the vehicle's high-voltage electrical system

checked by a qualified specialist workshop.

G

WARNING

In the event of a vehicle fire, the internal pres-

sure of the high-voltage battery can exceed a

critical value. In this case flammable gas

escapes through a ventilation valve on the

underbody. The gas can ignite. There is a risk

of injury.
Leave the danger zone immediately. Secure

the danger area at a suitable distance, whilst

observing legal requirements.

G

DANGER

If you use incorrectly installed mains sockets

or adapters, extension cables or similar to

connect the charging cable to a mains socket,

this could lead to fires or an electric shock.

There is a risk of fatal injury.

180

Charging the high-voltage battery (PLUG-IN HYBRID vehicles)

Dr

iving

and

parking

To avoid hazardous situations, observe the

following:

R

Only connect the charging cable to mains

sockets that:

-

are installed correctly and

-

have been approved by an electrical spe-

cialist.

R

For safety reasons, only use the charging

cables supplied with the vehicle, or charg-

ing cables which have been approved for

use with this vehicle.

R

Never use a damaged charging cable.

R

Do not use:

-

Extension cables

-

Cable drums

-

Multiple sockets

R

Do not use a socket adapter to connect the

charging cable to the mains socket. The

only exception is if the adapter has been

tested and approved by the manufacturer

for charging the high-voltage battery in an

electric vehicle.

R

Always observe the safety notes in the

socket adapter's operating instructions.

G

DANGER

Connecting the charging cable to the vehicle

via an incorrectly installed wallbox or by

means of adapters, extension cables or simi-

lar could cause a fire or an electric shock.

There is a risk of fatal injury.
To avoid hazardous situations, observe the

following:

R

Only connect the charging cable to a wall-

box if:

-

the wallbox is installed correctly

-

the wallbox has been inspected by a

qualified electrician and

-

the charging cable is undamaged

R

Do not extend the charging cable

R

Do not use an adapter

R

Always observe the safety notes in the wall-

box's operating instructions

The vehicle's high voltage electrical system is

under high voltage.

R

Do not tamper with the high-voltage compo-

nents or the orange cables of the high-voltage

electrical system.

R

Do not touch high-voltage components or the

orange cables of the high-voltage electrical

system when a vehicle has been involved in a

crash.

R

Never touch damaged components or the

damaged orange cables of the high-voltage

electrical system.

R

Do not remove the covers of the high-voltage

electrical system components that are

marked with a warning sticker.

General notes

Method of operation

The vehicle is equipped with a high-voltage bat-

tery for driving. The high-voltage battery stores

the energy needed to operate the electric motor

and releases it again.

The electric motor uses energy that has been

stored in the high-voltage battery when pulling

away, accelerating and during the journey.

In overrun mode, kinetic energy is converted by

means of energy recuperation into electrical

energy and stored in the high-voltage battery.

Information on overrun mode (

Y

page 253).

The high-voltage battery can be charged as fol-

lows:

R

through energy recuperation while the vehicle

is in motion

R

through the combustion engine while driving

in CHARGE operating mode (

Y

page 243)

R

with the relevant charging cable at an electri-

cal outlet while the vehicle is stationary

R

at a wallbox while the vehicle is stationary

R

at a charging station while the vehicle is sta-

tionary

The high-voltage battery can be charged in a

nominal voltage range from 100 V to 240 V.

You can view the condition of charge of the high-

voltage battery in the multifunction display. You

can find information in "PLUG-IN HYBRID oper-

ation", section "Menus and submenus" under

"Energy flow display" (

Y

page 245).

Charging the high-voltage battery (PLUG-IN HYBRID vehicles)

181

Driving

and

parking

Z

High and low outside temperatures

Low outside temperatures
At very low outside temperatures the maximum

power output of the high-voltage battery may be

reduced. The high-voltage battery is then no

longer able to provide the normal electrical

power output.

High outside temperatures
To prevent damage to the high-voltage battery

due to very high outside temperatures, the max-

imum power output of the high-voltage battery

is reduced by the vehicle.

Energy consumption and electrical

range

The maximum electrical range is generally

reduced by:

R

high and low outside temperatures

R

operating the climate control system

R

switching on consumers

The battery's physical characteristics are such

that leaving the vehicle parked for long periods

at low outdoor temperatures without charging it

can lead to:

R

a reduction in battery performance

R

longer charge times

Notes on battery care

Avoid storing or transporting the vehicle at

excessively high or low temperatures over a long

period.

If you park the vehicle and leave it stationary for

long periods:

R

check the condition of charge of the high-

voltage battery more often

R

connect the vehicle to a power supply

This prevents self-discharge and damage to the

high-voltage battery.

Terms of use

Please note the information on exceptions and

limitations in warranty documentation and in

the Maintenance Booklet.

Handling the charging cable and charg-

ing cable controls

Do not leave the charging cable controls

(

Y

page 183) hanging loose from an electrical

outlet. Otherwise, this could result in a poor

contact with the electrical outlet and malfunc-

tions when charging the vehicle.

To ensure that the brackets within the charging

cable controls are not subjected to incorrect

loads, observe the following:

R

Never lift or carry the controls by the charging

cable connector or the mains plug.

R

To transport the charging cable, the charging

cable can be:

-

wrapped around the controls or

-

secured to the housing of the controls

Heat generated by the charging cable

and charging cable connector

Pay attention to the "Important safety notes"

(

Y

page 180).

During the charging process, the charging cable

and charging cable connector may heat up.

The charging cable and the charging cable con-

nector will only heat up within the permissible

limiting values, provided that:

R

the power supply and the charging cable are

not damaged

R

the instructions for handling the charging

cable and controls on the charging cable are

observed

If the charging cable or charging cable connec-

tor become too hot, have the mains power sup-

ply checked.

Protection device against overvoltage
!

Overvoltage in the mains supply may dam-

age the vehicle. For this reason, the vehicle is

equipped with a protection device against

overvoltage in the mains supply. This device

may be triggered during severe thunder-

storms, for example, and may lead to the buil-

ding's fuse being tripped and an interruption

in the power supply. These functions protect

the vehicle. After the building fuse is switched

on again, the charging process resumes auto-

matically. Following an interruption in the

power supply or tripping of the building's fuse,

it may take up to 10 minutes for charging to

resume automatically.

182

Charging the high-voltage battery (PLUG-IN HYBRID vehicles)

Driv

ing

and

parking

Switch on the building protection system again

after it has been triggered. Otherwise, the

charging process cannot be continued.

General information about the charging

procedure

Pay attention to the "Important safety notes"

(

Y

page 180).

The vehicle socket is located in the rear bumper

on the right below the tail lamp.

The charge socket flap and the vehicle are cen-

trally locked or unlocked simultaneously.

Charging the high-voltage battery via

the electrical outlet

Charging cable for electrical outlets

Important safety notes

!

Only use the charging cable to charge the

high-voltage battery. Do not use the charging

cable for other purposes. It may otherwise be

damaged.

The vehicle is supplied with a country-specific

charging cable for connection to a mains socket.

Only use the charging cable supplied with the

vehicle or a charging cable approved for the

vehicle.

i

If you use the supplied 12 A charging cable

to charge a high-voltage battery:

R

the charge time increases considerably

R

electrical consumption increases consider-

ably

Where possible, charge the high-voltage bat-

tery at a charging station (

Y

page 186). Only

then can certified electrical energy consump-

tion levels be reached.

i

The charging process can vary depending on

the power supply. Therefore, always observe

the local information.

Information about charging from a wallbox can

be found at (

Y

page 185).

Information about charging at a charging station

can be found at (

Y

page 186).

Stowing the charging cable

The charging cable can be stowed and held in

place in the bag provided in the trunk of the

vehicle.

Controls on the charging cable

:

On-board voltage indicator

;

Protective and indicator system display

=

Charge current indicator

?

Charge current setting button

When displays : and ; on the charging cable

light up, this means the following:

Display :
Lights up

green

The on-board voltage is con-

nected. The high-voltage bat-

tery can be charged.

Flashes red

The power supply from the

building is faulty.

Display ;
Lights up

green

There are no malfunctions.

The high-voltage battery can

be charged.

Flashes red

The protective and indicator

system has detected a mal-

function due to an internal

malfunction. The high-voltage

battery cannot be charged.

If the control detects residual current or a mal-

function, the charging process is halted. Once

the malfunction has been rectified the charging

process is resumed automatically.

For information on problems relating to the

charging process, see (

Y

page 187).

Charging the high-voltage battery (PLUG-IN HYBRID vehicles)

183

Driving

and

parki

ng

Z