Read and foll ow the WARNINGS before check-
ing anything in the engine compartment
¢ page 238.
Checking th e engine coolant level
.,. Park your vehicle on a level surface .
.,. switch the ignition
off.
.,. Read the coolant leve l on the coo lant expansion
tank
¢ page 240, fig. 188. The coo lant level
must be between the markings when the en -
gine in cold. When the engine is warm it can be
slightly above the upper marking.
Adding coolant
Requirement: there must be a residual amount of
coolant in the expansion tank
¢ (D.
.,. Let the engine coo l down.
.,. Place a cloth over the coolant expansion tank
cap and unscrew the cap counterclockwise
¢ A, .
.,. Add coolant mixed in the correct ratio
¢ page 244 up to the upper marking.
.,. Make sure that t he fluid level rema ins stable .
Add more coolant
if necessary.
.,. Close the cap securely .
A coolant loss suggests a leak. Immediately drive
your vehicle to an authorized Audi dealer or au-
thor ized Audi Service Facility and have the cool-
ing system inspected. If the cooling system is not
leaki ng, a loss can come from the coolant bo iling
through ove rheating and being pushed out of the
cooling system .
A WARNING
-
The cooling system is pressurized and can be-
come very hot. To reduce the risk of burns
from hot coolant :
- Do not open the coo lant expansion tank cap
with the engine hot. There is a risk of burns .
- Stop the engine and allow it to coo l.
- Protect your face, hands and arms from es-
caping coolant and steam by cove ring the
coolant tank cap with a large, thick cloth .
- Turn the coo lant tank cap counterclockwise
slowly and keep light pressure on the cap.
- To reduce the risk of burns , do not a llow any
antifreeze or coolant to drip onto the ex-
Ch e ck ing an d Filling
haust system or hot engine components.
The ethy lene glycol in engine coolant can
catch fire under certain circumstances.
- The coolant additive and the coolant can be
dangerous to your health . For th is reason,
keep the coolant in the original container
away from children . There is a risk of poi-
soning .
- When working in the engine compartment,
remember that the radiator fan can switch
on even if the ignition is switched
off, wh ich
increases the risk of persona l injury.
(D Note
Do not add coolant if the expansion tank is
empty . Air could enter the cooling system and
damage the eng ine . If this is the case, do not
continue driving. See an authorized Audi dea l-
e r or autho rized Audi Serv ice Facility for ass is-
tance .
Radiator fan
The radiator fan switches on automatically by it-
self .
An auxiliary e lectr ic radiator fan switches on and
off depend ing o n coo lant temperature and other
vehicle ope rating conditions.
After you switch the eng ine
off, the auxiliary fan
can continue running for up to 10 m inutes - even
with the ignition
off. It can even switch on aga in
later by itself¢ ,&., if
- the temperature of the engine coolant rises due
to the heat build-up from the engine in the en-
gine compa rtment, or
- the engine compa rtme nt heats up because the
veh icle is parked in intense sunlight.
.&_ WARNING
- To redu ce the ris k of persona l injury never
touch the radiato r fan .
- The a uxiliary e lectr ic fan is temperatu re
controlled and can switch on s uddenly even
when the engine is not running.
-
245
To Next Page
Loading...
