Volkswagen CC (2015 year). Instruction — part 28

If the indicator in the engine coolant temperature gauge is located in
the cold range

(A)

, the engine has not reached operating tempera-

ture. High engine speeds and heavy engine loads should be avoided.
Under normal driving conditions, the needle should be in the middle
of the gauge. The temperature may go higher when the engine is
working hard, especially in hot weather.
When the ignition is switched on, several warning and indicator lights
come on briefly for a function check. They go out after a few seconds.
The following table explains what to do if the engine coolant tempera-
ture warning light does not go out a few seconds after the engine
is started or starts flashing while driving.

Flashes

Temperature

gauge

needle

⇒

fig. 167

Possible
cause

Proper response

Flashes

Temperature

gauge

needle

⇒

fig. 167

Possible
cause

Proper response

(C)

Warning

zone

Engine coolant
temperature
too high.

Stop!

Pull off the road and stop
as soon as you can do so
safely. Stop the engine
and let it cool down until
the temperature needle is
in the normal range again.
Check the engine coolant
level and add engine cool-
ant if needed.
If the engine coolant level
is correct or the problem
continues after adding
coolant and driving a short
distance, do not drive any
farther. Contact the near-
est authorized Volkswagen
dealer or authorized
Volkswagen Service Facili-
ty.
If the coolant level is cor-
rect, the overheating may
be caused by a radiator
fan fault. Check the fuses
and replace as necessary.

Flashes

Temperature

gauge

needle

⇒

fig. 167

Possible
cause

Proper response

(B)

Normal range

Engine coolant
level too low.

Check the engine coolant
level after the engine has
cooled down and add en-
gine coolant if low.
If the engine coolant level
is correct or the problem
continues after adding
coolant, do not drive any
farther. Contact an au-
thorized Volkswagen deal-
er or authorized
Volkswagen Service Facili-
ty.
These instructions apply
only when the coolant
temperature stays in the
normal range. Stop imme-
diately if the needle goes
into the red warning zone

(C)

.

–

Engine coolant
system
malfunction.

Stop!

Get assistance from an
authorized Volkswagen
dealer, an authorized
Volkswagen Service Facili-
ty, or another qualified
workshop.

–

(A)

Cold range

The engine has
not yet warmed
up.

Do not drive at high engine
speeds or with heavy en-
gine loads until the engine
warms up.

When the ignition is switched on, several warning and indicator lights
come on briefly for a function check. They go out after a few seconds.

WARNING

Failure to heed warning lights and instrument cluster text mes-
sages can cause the vehicle to break down in traffic and result
in a collision and serious personal injury.

Never ignore warning lights or text WARNINGS.
Always stop the vehicle as soon as it is safe to do so.

NOTICE

Failure to heed warning lights or text WARNINGS can result in
vehicle damage.

Engine coolant specifications

Please first read and note the introductory information and

heed the WARNINGS

The engine cooling system is filled at the factory with a mixture of
specially conditioned water and at least 40 percent of Volkswagen
engine coolant additive G 13 (TL-VW 774 J). This engine coolant ad-
ditive is pink.
This mixture provides antifreeze protection down to -13 °F (-25 °C). It
also helps to protect the light alloy parts in the engine cooling system
against corrosion. In addition, the mixture helps prevent calcium de-
posits and increases the boiling point of the engine coolant.
To protect the engine, the mixture must always contain at least 40%
coolant additive even in warm weather or climates where antifreeze
protection is not needed.
If more antifreeze protection is needed for climate conditions, the per-
centage of coolant additive can be increased. However, the coolant
additive percentage must never be more than 60%; otherwise, anti-
freeze protection is reduced and the ability of the mixture to cool the
engine is also reduced.

When adding engine coolant, use a mixture of distilled water and at
least 40% coolant additive G 13 or G 12 plus-plus (TL-VW 774 G) for
optimum corrosion protection

⇒ .

Do not mix G 13 with G 12 plus or G 11. Mixing these coolant addi-
tives together significantly reduces corrosion protection

⇒ and can

lead to engine damage that is not covered by any Volkswagen Lim-
ited Warranty.

WARNING

Too little antifreeze protection in the engine cooling system can
cause engine failure and severe injuries.

Always make sure there is enough of the correct coolant ad-

ditive to provide proper antifreeze protection at the coldest
temperatures that can be expected where the vehicle will be
used.

At extremely cold temperatures, the coolant could freeze,

causing the vehicle to break down. The heater would also not
work, and vehicle occupants could be without protection at
subfreezing temperatures.

NOTICE

Never mix original Volkswagen engine coolant additives with
other additives not approved by Volkswagen. Mixing
Volkswagen coolant additives with coolant additives made by
other manufacturers can seriously damage the engine and the
engine cooling system.

If the fluid in the engine coolant reservoir is any color but pink,

then G 13 was mixed with a different engine coolant. If this is the
case, the engine coolant must be replaced immediately. Other-
wise serious malfunctions or engine damage can occur!

Engine coolant and engine coolant additives can pollute the envi-

ronment. Collect leaking operating fluids and dispose of them proper-
ly in accordance with applicable environmental laws and regulations.

Checking engine coolant level and topping off

Fig. 168 Coolant expansion tank in the engine compartment.

Fig. 169 Coolant expansion tank cap in the engine compartment.

Please first read and note the introductory information and

heed the WARNINGS

If the coolant level drops too low, the engine coolant lev-
el/temperature warning light lights up.

Preparations

Park the vehicle on level ground.
Always let the engine cool down

⇒ .

Open the engine hood
There is a symbol on the cap of the engine coolant expansion

tank

⇒

fig. 169

.

Checking engine coolant level

When the engine is cold, check the engine coolant level relative to

the marking on the side of the expansion tank

⇒

fig. 168

.

If the coolant level in the tank is below the minimum mark (“min”),

add coolant. When the engine is warm, the engine coolant level may
be slightly above the upper edge of the marked range.

Adding engine coolant

Always protect face, hands and arms from hot escaping coolant or

steam by covering the cap with a large, thick rag.

Carefully unscrew the cap

⇒ .

Add only new engine coolant according to Volkswagen specifica-

tions (

⇒ Engine coolant specifications) ⇒ .

The engine coolant level must be inside the marks on the side of

the reservoir

⇒

fig. 168

. Do not fill above the top edge of the filling

range!

⇒

Screw the lid tightly.
Even in an emergency, do not use any other kind of coolant addi-

tive if engine coolant meeting Volkswagen specifications (

⇒ page 456,

Engine coolant specifications) is unavailable! Instead, add distilled
water only

⇒ . As soon as possible, have the correct coolant ratio

restored using engine coolant that meets Volkswagen specifications
⇒ Engine coolant specifications.

WARNING

Hot steam and hot engine coolant can cause serious burns.

Never open the hood if you see steam or coolant escaping

from the engine compartment. Always wait until you no longer
see or hear steam or coolant escaping from the engine.

Always let the engine cool down completely before carefully

opening the hood. Hot components will burn skin on contact.

When the engine has cooled down and you are ready to open

the hood:
– Apply the electronic parking brake and shift the transmis-

sion into Park (P) (automatic) or Neutral (manual only).

– Take the vehicle key out of the ignition.
– On vehicles with Keyless Access, make sure that the re-

mote control vehicle key is out of range of the vehicle and
that the vehicle cannot be started by depressing the starter
button

– Always keep children and others away from the engine

compartment and never leave them unsupervised.

The engine coolant system is under pressure when the en-

gine is hot. Never unscrew the coolant expansion tank cap
when the engine is hot. Hot coolant can spray out and cause
severe burns and other serious injuries.
– Turn the cap slowly and very carefully in a counterclock-

wise direction while applying light downward pressure on the
top of the cap.

– Always protect your face, hands, and arms from hot escap-

ing coolant or steam by covering the cap with a large, thick
rag.

Never spill fluids on the engine or exhaust system when re-

filling. Spilling fluids onto hot parts of the engine or exhaust
system can cause a fire. Under some conditions, the ethylene
glycol in engine coolant can catch fire.

NOTICE

Use distilled water only when adding coolant! All other types

of water contain chemical compounds that can cause extensive
corrosion damage to the engine. This can even lead to engine

failure. If you have added non-distilled water, take the vehicle
immediately to an authorized Volkswagen dealer or an author-
ized Volkswagen Service Facility to have the coolant system
drained, flushed, and refilled completely with the proper coolant.

Refill engine coolant only up to the top edge of the marked fill

range

⇒

fig. 168

. Excess engine coolant may be forced out of the

engine cooling system when it gets hot and cause damage.

In the case of significant engine coolant loss, refill engine

coolant only when the engine is completely cooled down. Signif-
icant engine coolant loss is a sign of leaks in the cooling sys-
tem. Have the engine cooling system checked immediately by an
authorized Volkswagen dealer or an authorized Volkswagen Ser-
vice Facility. Otherwise the engine may be damaged!

When changing or topping off operating fluids, make sure that

you pour the fluids into the correct reservoirs. Serious malfunc-
tions and engine damage can result if you pour operating fluids
into the wrong reservoir.

Vehicle battery

Introduction

In this section you’ll find information about:
Warning light
Checking the vehicle battery electrolyte level
Charging, replacing, disconnecting, and connecting the vehicle
battery

The standard 12 Volt vehicle battery is part of the vehicle electrical
system.
Never do any work on the vehicle electrical system unless you

know exactly how to carry out the job,
have the correct technical information and the proper tools, and
are familiar with the necessary safety precautions

⇒ !

If you are uncertain in any way, have the work done by an authorized
Volkswagen dealer or authorized Volkswagen Service Facility. Seri-
ous personal injury may result from improperly performed work.

Location of the vehicle battery
Depending upon the engine type, the 12 Volt vehicle battery is locat-
ed in the engine compartment or behind a cover in the luggage com-
partment. On vehicles with a 3.6 liter engine, the battery is behind a
trim panel in the left rear corner of the luggage compartment.
Vehicles with the battery located in the luggage compartment are
equipped with a battery isolator feature. In a collision, the airbag con-
trol module triggers a small pyrotechnic charge that physically dis-
connects the battery from the engine starter motor and the positive
jump-start terminal in the engine compartment.

Explanation of the warnings on the vehicle battery

Symbol

Meaning

Always wear eye protection!

Symbol

Meaning

Battery acid is highly corrosive. Al-

ways wear protective gloves and eye

protection!

Fire, sparks, open flame, and smoking

are prohibited!

When a battery is charged, it produc-

es hydrogen gas which is highly ex-

plosive!

Always keep children away from bat-

tery acid and vehicle batteries!

More information:

⇒ Booklet Warranty and Maintenance

Working in the engine compartment
Parts, accessories, repairs and modifications

WARNING

Working on the batteries or the electrical system in your vehicle
can cause serious acid burns, fires, explosions, or electrical
shocks. Always read and heed the following WARNINGS and
safety precautions before working on the batteries or the elec-
trical system.

Before working on the electrical system, always switch off

the ignition and all electrical consumers and disconnect the
negative (-) cable from the standard 12 Volt battery.

When you change a light bulb, always switch off the light

first.

Always keep children away from battery acid and vehicle bat-

teries in general.

Always wear eye protection. Never let battery acid or lead

particles come into contact with your eyes, skin, or clothing.

Sulfuric battery acid is very corrosive. It can burn unprotect-

ed skin and cause blindness. Always wear protective gloves
and eye protection. To reduce your risk of injury, never tilt the
batteries, as this could spill acid through the vents and burn
you.

If you get battery acid in your eyes or on your skin, immedi-

ately rinse with cold water for several minutes and then get
immediate medical attention. If you swallow any battery acid,
get medical attention immediately.

When disconnecting the batteries from the vehicle electrical

system, always disconnect the negative cable (-) first and then
the positive cable (+).

Always switch off all electrical consumers before reconnect-

ing 12 Volt batteries. Reconnect the plus cable (+) first and then
the negative cable (-). Never reverse the polarity of the connec-
tions. This could cause a fire.

A highly explosive mixture of gases is given off when the bat-

tery is being charged.

Do not smoke and avoid fires, sparks, and open flames when

working. Never create sparks or electrostatic charges when
handling cables and electrical equipment. Never short circuit
the battery terminals. High-energy sparks can cause serious
personal injury.

Never use or attempt to charge a damaged or frozen battery,

or a battery that was frozen but has thawed. Charging a frozen
or thawed battery could cause explosions and chemical burns!
Replace damaged or frozen vehicle batteries immediately. A
dead battery can freeze at temperatures around +32 °F (0 °C).

If the battery has a vent line or tube, make sure that it is

properly connected to the battery.

Always make sure that the vent line is securely attached to a

vehicle battery that is located in the luggage compartment.

WARNING

California Proposition 65 Warning

Battery posts, terminals, and related accessories contain

lead and lead components, chemicals known to the State of
California to cause cancer and reproductive harm. Wash your
hands after handling.

NOTICE

Do not expose the vehicle battery to direct sunlight for an ex-

tended period of time as ultraviolet rays may damage the battery
housing.

If the vehicle is left standing in the cold for a long time, protect

the vehicle battery from freezing. A battery will be permanently
damaged by freezing.

Undeployed battery isolator modules are classified as Perchlo-

rate Material. Special handling may apply – see
http://www.dtsc.ca.gov/hazardouswaste/perchlorate. Obey all appli-
cable legal requirements regarding handling and disposal of the vehi-
cle or parts of its restraint system, including airbag modules and safe-
ty belts with pretensioners. Authorized Volkswagen dealers and au-
thorized Volkswagen Service Facilities are familiar with the require-
ments, and we recommend that you have them perform this service
for you.

Emergency starting and starting the engine with a very weak ve-

hicle battery or after the vehicle battery has been replaced may

change or delete system settings (including time, date, personal con-
venience settings, and programming). Check the settings and correct
as necessary once the vehicle battery has built up a sufficient charge.

Warning light

Please first read and note the introductory information and

heed the WARNINGS

Lights

up

Possible cause

Proper response

Alternator malfunction.

See an authorized

Volkswagen dealer or an au-

thorized Volkswagen Service

Facility. Have the electrical

system checked.

Switch off unnecessary electri-

cal loads. The vehicle battery

will not be charged by the al-

ternator as you drive.

When the ignition is switched on, several warning and indicator lights
come on briefly for a function check. They go out after a few seconds.

WARNING

Failure to heed warning lights and instrument cluster text mes-
sages can cause the vehicle to break down in traffic and result
in a collision and serious personal injury.

Never ignore warning lights or text WARNINGS.
Always stop the vehicle as soon as it is safe to do so.

NOTICE

Failure to heed warning lights or text WARNINGS can result in
vehicle damage.

Checking the vehicle battery electrolyte level

Fig. 170 In the engine compartment: On vehicles with a 2.0 liter en-
gine, the vehicle battery is in the engine compartment.

Fig. 171 In the luggage compartment: On vehicles with a 3.6 liter en-
gine, the vehicle battery is on the left side of the luggage compart-
ment.

Please first read and note the introductory information and

heed the WARNINGS

Check the electrolyte level of the battery regularly if the vehicle has
high mileage (km), in places with a warm climate, and if the vehicle
has an old battery. Otherwise the vehicle battery does not require
maintenance.

Preparations

Prepare the vehicle for work in the engine compartment

⇒ Working

in the engine compartment

Vehicles with 2.0 liter engines: Open the engine hood ⇒

Vehicles with 3.6 liter engines: Open the luggage compartment lid

⇒ Luggage compartment lid.

Opening the battery cover
Depending on the engine type, there are different kinds of battery
covers:

Vehicles with 2.0 liter engines: Press on the clip in direction of the

arrow

⇒

fig. 170

(1)

and remove the cover upward.

Vehicles with 3.6 liter engines: Remove the trim panel to access

the vehicle battery

⇒

fig. 171

.

Checking the vehicle battery acid level

If the lighting conditions are poor, use a flashlight so that you can

clearly see the battery acid level indicator and tell what color it is.
Never use an open flame or an unprotected light source.

The round battery window (“acid level indicator”) on the top of the

battery changes color, depending on the battery's electrolyte level.

Color

Action

Light yellow

or colorless

Battery electrolyte level is too low.

The vehicle battery may need to be

replaced. Have it checked by an

authorized Volkswagen dealer or an

authorized Volkswagen Service Fa-

cility.

Black

Battery electrolyte level is satisfacto-

ry.