232 Checking and filling
-Apply the parking brake.
- Move selector lever of automatic trans- mission to P (Park).
- Always let the engine cool down. Hot components will burn skin on contact.
- To reduce the risk of being burned, never
open the hood if you see or hear steam
or coolant escaping from the engine
compartment. Wait until no steam or
coolant can be seen or heard before care
fully opening the hood.
- Keep children away from the engine com partment.
- Never spill fluids on hot engine compo
nents. They can cause a fire.
- Never touch the radiator fan. The auxili
ary electric fan is temperature controlled
and can switch on suddenly.
- Never open the coolant reservoir cap
when the engine is still warm. The cool
ant system is pressurized and hot cool ant could spray out .
- Protect your face, hands and arm from
steam or hot engine coolant by placing a
thick rag over the cap when you open the
coolant reservoir .
- Do not remove the engine cover under
any circumstances. This increases the
risk of burns.
- If work on the fuel system or the electri
cal system is necessary:
- Always disconnect the battery.
- Never smoke or work near heaters or
open flames. Fluids in the engine com
partment could start a fire.
- Keep an approved fire extinguisher im
mediately available.
- To avoid electrical shock and personal in
jury while the engine is running or being
started, never touch:
- Ignition cables
- Other components of the high voltage
electronic ignition system.
- If you must perform a check or repair
with the engine running: -
First, fully apply the parking brake,
move selector lever of automatic trans
mission to P (Park).
- Always use extreme caution to prevent
clothing, jewelry, or long hair from get
ting caught in the radiator fan, V-belts
or other moving parts, or from contact ing hot parts. Tie back hair before
starting, and do not wear clothing that
will hang or droop into the engine.
- Minimize exposure to emission and
chemical hazards
c:> &, .
&_ WARNING
California Proposition 65 Warning:
- Engine exhaust, some of its constituents,
and certain vehicle components contain
or emit chemicals known to the State of
California to cause cancer and birth de
fects and reproductive harm. In addition,
certain fluids contained in vehicles and
certain products of component wear con
tain or emit chemicals known to the
State of California to cause cancer and
birth defects or other reproductive harm.
- Battery posts, terminals and related ac
cessories contain lead and lead com
pounds, chemicals known to the State of
California to cause cancer and reproduc
tive harms. Wash hands after handling.
(D Note
When adding fluids, always make sure that
they are poured into the proper container
or filler opening, otherwise serious dam
age to vehicle systems will occur.
@ For the sake of the environment
To detect leaks in time, inspect the vehicle
floor pan from underneath regularly. If
you see spots from oil or other vehicle flu
ids, have your vehicle inspected by an au
thorized Audi dealer.
24 0 Ch eck ing and filling
pressure relief valve in the cap when the en
gine becomes hot.
A WARNING
- The coo ling system is under pressure and
can get very hot. Reduce the risk of
sca lding from hot coolant by following
these steps.
- Turn off the eng ine and a llow it to cool
down.
- Protect your face, hands and arms from escap ing fl uid and steam by cover ing
the cap with a large, thick rag.
- T urn the cap slowly and very carefully
in a counter-clockwise direction while
applying light, downward pressure on
the top of the cap.
- To avo id being burned, do not sp ill an
tifreeze or coolant on the exhaust sys
tem or hot engine parts. Under certain
conditions, the ethylene glyco l in en
g ine coolant can catch fire.
- Antifreeze is poisonous. Always store an
t ifreeze in its or iginal container and well
out of the reach of children.
- If you drain the coolant, it must be caught and safely stored in a proper con
tainer clear ly marked "poison".
- Coolant pollutes the environment and
could cause an engine fire. Excess coo l
ant will be forced out through the pres
sure re lief 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 238 must be re
stored as soon as possib le.
@ For the sake of the environment
Dra ined 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 the temperature of the
coolant .
An auxiliary electric radiator fan* sw itches on
and off depending on coolant temperature
and other vehicle operat ing condit ions.
After you switch the engine off, the aux iliary
fan can continue running for up to 10 m inutes
- even w ith the ignition off. It can even switc h
on again later by itself
c> &. , if
- the temperature of the engine coo lant r ises
due to the heat build-up from the engine in
the engine compartment, 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 fan .
- The auxiliary electric fan is temperature
controlled and can sw itch on suddenly
even when the engine is not running.
- The auxiliary radiator fan sw itches on au
tomatically when the engine coo lant
reaches a certain temperature and w ill
con tinue to run until the coolant tempe r
a ture drops.
280 Fuses and bulbs
No. Consumer Amps Fuse panel
© (red )
7 Headlight (corner
ing light)
7,5 No. Consumer Amps
Contro l modu les (e lec trome-
3 Lum bar s upport 10
8
chanic al par king br ake, sho ck
5
absorber, q uatt ro Spor t, tra ile r
hitch), DCDC converter 4
Dynamic stee ring
35
5 Climat ized cu pholder 10
9
Adaptive cruise contro l or hig h
5/7,5
vo ltage battery (hybr id d rive) 6
W indshield w asher system,
35
h eadlamp washer sys tem
1 1 Side ass ist 5
7 Vehicle e
lectrical system control
20
module 1
12 H
eadlight range contro l, par k·
5
ing sys tem
8
Ve hicle e lec tric al syste m control
30
mod ule 1
13 Airbag
5
9 Panorama sunroof
20
1 4 Rear wiper 15
1 5 Aux
iliary fuse (instrument pan·
10
el)
16
Auxi liary fuse term inal 15 (en -
40
gine area) 10
Vehicle e
lectrica l system control
30
module 1
1 1 Sun shade (panorama s unroof) 20
1 2 Anti-theft alarm warning sys·
s
tern
Fuse panel
@ (brown)
No. Consumer Amps Right cockpit fuse assignment
1 Electric exhaust door
5/10
Brake lig ht sensor o r brake ped·
2 al movem ent s ensor (hybrid 5
dr ive)
3 Fuel pump 25
4 AdBl
ue p ump supp ly o r Br ake
5/25
booste r (hybr id drive)
5 Left seat heati
ng wit h/w ithout
15/30
seat vent ilation
6 ESC 5
7 Horn 15
Left front door (window regula ·
8 tor, central locking, m irror,
30
sw itch, light ing)
9 Wipe r moto r 30
10 ESC 25
11 Le
ft r ear do or (win dow regul a-
30
t o r, sw itch, lighting)
12 Rain and light se
nso r
5
Fig. 22 7 Right cockp it: fuse panel wit h plast ic clip
Fuse panel ® (black)
No. Consumer Amps
5 Steering column sw itch mod ule s
7
Terminal 15 diagnostic connec·
tor
5