- If you drain the coolant, it must be
caught and safely stored in a proper
conta iner clearly marked "poison".
(D Note
- Coolant pollutes the environment and
could cause an engine fire. Excess cool-
ant will be forced out through the pres-
sure relief valve in the cap when the en-
gine becomes hot .
- If, in an emergency, only water can be
added , the correct ratio between water
and antifreeze ¢
page 239 must be re-
stored as soon as possible.
@ For the sake of the environment
Drained coolant should not be reused. Al-
ways dispose of used coolant while observ-
ing all environmental regulations .
Radiator fan
The radiator fan switches on automatically by
itself
The radiator fan is driven by the engine via the
V-belt. The viscous clutch regulates the speed
of the fan according to t he temperature of the
coolant.
An auxiliary electr ic radiator fan* swit ches on
and off depending on coolant t empera t ure
and other vehicle operati ng conditions.
After you switch the engine off, the auxilia ry
fan can continue running for up to 10 minu t es
- even with the ignition off . It can even swit ch
on again later by itself ¢ ,& , if
- the temperature of the engine coolant rises
due to the heat build-up from the engine in
the engine compartmen t , or
- the engine compartment heats up because
the vehicle is parked in intense sunlight.
A WARNING
- To reduce the risk of personal injury nev-
er touch the radiator fa n.
Checkin g and fillin g 241
- The auxiliary electric fan is tempe rat ure
contro ll ed and can switch on suddenly
even when the engine is not ru nning.
- The auxiliary radiator fan switches on au-
tomatically when the engine coolant
reaches a certai n temperature and will
continue to ru n until the coolant temper-
ature drops.
Brake fluid
Checking brake fluid level
The brake fluid level can be checked with a
quick glance.
Fig. 21 1 Engine compartm ent: Brake fluid reservoir
Before you check anything in the engine com-
partment,
always read and heed all WARN-
INGS ¢ .&. in Working in the engine compart-
ment on page 232 .
.. Read the brake fluid level from the brake
fluid reservoir ¢
fig. 211 . The brake fluid
level must be between the
"MIN" and
"MAX" mark ings.
The brake fluid reservoir is located at the rear
partition of the engine compartment on the
left side ¢
page 234.
The fluid level may drop slightly afte r some
time due to the automatic adjustment of the
brake pads. This is not cause for alarm .
If the brake f luid level falls
considerably be-
low the "MIN" mark, the brake warn ing/ indi-
cator light (U.S. models: - · Canadian
models : . ) w ill come on¢
page 18 and
¢
page 30. Do not cont inue to operate the ve-
hicle. The complete brake system should be
thoroughly checked by an author ized Audi
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