Audi Q3: Cooling system
Coolant
The engine cooling system is filled with a mixture
of purified water and coolant additive at the factory.
This coolant must not be not changed.
The coolant level is monitored using the
indicator
light. However, you should occasionally
check the coolant level.
Messages
The following messages may appear depending
on the vehicle equipment:
Turn off engine and check
coolant level. See
owner's manual
or
Stop vehicle and check
coolant level! See
owner's manual
The coolant level is too low.
Do not continue driving and switch the ignition
off. Check the coolant level.
- If the coolant level is too low, add coolant. Only continue driving once
the indicator
light turns off.
Coolant temperature: too
high. Please let engine run while vehicle is stationary
Let the engine run at idle for a few minutes to
cool off, until the indicator light turns off.
- If the indicator light does not turn off, do not
continue driving the vehicle. See an authorized
Audi dealer or authorized Audi Service Facility
for assistance.
Coolant system: malfunction!
Please turn
off engine
Do not continue driving, shut the engine off, and
switch the ignition off. See an authorized Audi
dealer or authorized Audi Service Facility for assistance.
Coolant additive
The coolant additive is made of anti-freezing and
corrosion protection agents. Only add the following
coolant additives mixed with distilled water.
The amount of coolant additive that needs to be
mixed with water depends on the climate where
the vehicle will be operated. If the coolant additive
percentage is too low, the coolant can freeze
and damage the engine.
Note
- Before the start of winter, have an authorized
Audi dealer or authorized Audi Service
Facility check if the coolant additive in your
vehicle matches the percentage appropriate
for the climate. This is especially important
when driving in colder climates.
- If the G12evo coolant additive is not available
in an emergency, do not add any other
additive. You could damage the engine. If
this happens, only use distilled water and restore the correct mixture ratio
with the
specified coolant additive as soon as possible.
- Only refill with new coolant.
- Radiator sealant must not be mixed with
the coolant.
- You can continue driving if the permitted
G12evo coolant additive was not added.
However, go to an authorized Audi dealer or
authorized Audi Service Facility immediately
to have the coolant replaced to reduce the
risk of engine damage.
- Due to the risk of engine damage, the cooling
system should only be refilled by an authorized
Audi dealer or authorized Audi
Service Facility. An authorized Audi dealer or
authorized Audi Service Facility can also provide
you with important information about
the recommended coolant additive.
READ NEXT:
Fig. 150 Engine compartment - coolant expansion tank (diagram): 1 cover; 2
markings
Observe the safety precautions.
Checking the coolant level
Park the vehicle on a level surface.
Switch the igni
Fig. 151 Engine compartment: cap on brake fluid reservoir
Observe the safety precautions.
Checking the brake fluid level
Park the vehicle on a level surface.
Read the brake fluid level on the brak
The following messages may appear depending
on the vehicle equipment:
If the or
indicator light turns on, there is
a
malfunction in the generator, the battery, or the
vehicle electrical system.
El
SEE MORE:
Overview - Seat Position Sensor
Note
The illustration shows the passenger seat position sensor with the
wiring harness.
1 - Connector
Connector station in the vehicle floor under on the sill panel under
the seat.
2 - Cable Holder/Cable Tie
Clipped in
Note
When the High Pressure Sensor -G65- is removed, the cooling
output cannot be checked. The Climatronic Control Module
-J255-/A/C Control Module -J301- control head does not switch on
the Air Conditioning (A/C) compressor. Refer to Vehicle
Diagnostic Tester in the "Guided Fau