Checking and Filling
-Always let the engine cool down. Hot com
ponents 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 compart
ment . Wait until no steam or coolant can be
seen or heard before carefully 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 auxiliary
electric fan is temperature controlled and
can switch on suddenly.
- Never open the coolant reservoir cap when
the engine is still warm. The coolant system
is pressurized and hot coolant 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 electrical
system is necessary :
- Always disconnect the battery.
- Never smoke or work near heaters or open
flames . Fluids in the engine compartment
could start a fire.
- Keep an approved fire extinguisher imme
diately available.
- To avoid electrical shock and personal injury
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 transmission
to P (Park).
222
- Always use extreme caution to prevent
clothing, jewelry, or long hair from getting
caught in the radiator fan, V-belts or other
moving parts, or from contacting 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 chemi
cal hazards
~ ,&. .
&, WARNING
California Proposition 65 Warning:
- Engine exhaust , some of its constituents,
and certain vehicle components contain or
emit chemicals known to the State of Cali
fornia to cause cancer and birth defects and
reproductive harm. In addition, certain flu
ids contained in vehicles and certain prod
ucts of component wear contain or emit
chemicals known to the State of California
to cause cancer and birth defects or other
reproductive harm.
- Battery posts, terminals and related acces sories contain lead and lead compounds,
chemicals known to the State of California
to cause cancer and reproductive harms .
Wash hands after handling .
('.!) Note
When adding fluids, always make sure that
they are poured into the proper container or
filler opening, otherwise serious damage 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 fluids, have
your vehicle inspected by an authorized Audi dealer.
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-To avoid being burned, do not spi ll anti
freeze or coolant on the exhaust system or hot engine parts. Under certain condi
tions, the ethylene glycol in engine cool ant can catch fire.
- Antifreeze is poisonous. Always store anti
freeze in its original conta iner and well out
of the reach of ch ildren .
-If you drain the coolant, it must be caught
and safely stored in a proper container
clearly marked "poison" .
(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. Seek profess ional
ass istance.
- Coolant pollutes the env ironment and could
cause an eng ine fire . Excess coolant will be
fo rced out through the pressure relief valve
i n the cap when the eng ine becomes hot.
- If, i n an emergency , only water can be add
ed, the correct ratio between wa ter and an
tifreeze
~ page 22 7 must be restored as
soon as possib le .
@) For the sake of the environment
Drained coolant should not be reused. Always
dispose o f used coolant while observ ing all
environmental regulations .
Radiator fan
The radiator fan switches on automatically by it
self.
The radiator fan is driven by the engine via the V
be lt . The viscous clu tch regulates the speed of
the fan ac cording to the temperature of the cool
ant.
An auxiliary e lectr ic rad iator fan* switches on and
off depend ing on coolant temperat ure and othe r
veh icle operating conditions.
Afte r you switch the engine off, the auxiliary fan
can continue runn ing for up to 10 minutes -even
Ch eck in g and Fillin g
with the ignition off . It can even switch on again
later by itself¢& , if
- the temperatu re of the engine coo lant rises due
to the heat build- up from the engine in the en
gine compartment, or
- the engine compartment heats up because the
veh icle is parked in intense sun light .
A WARNING
-To reduce the risk of persona l injury never
touch the radiator fan .
- The auxiliary electric fan is temperature con trolled and can switch on suddenly even
when the engine is not running.
- The a uxiliary radiator fan sw itches on auto
matica lly when the engine coolant reaches a
certain temperature and will continue to run
until the coolant temperature drops.
Brake fluid
Checking brake fluid level
The brake fluid level can be checked with a quick
glance .
Fig. 201 Engine compar tment : cov er on th e bra ke fluid
r e servoir
Before you check anyth ing in the engine compart
ment,
al way s read and h eed all WARNIN GS
¢ _.& in Working in the engine compartment on
page 221 .
.,. Read the brake fluid level from the b rake fluid
reservoir ¢
fig. 201, ¢ page 223, fig . 197 . The
brake fluid level must be between the
"MIN "
and "MAX " markings.
229
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Left cockpit fuse assignment
Fig. 224 Left side of the cockpit: fuse panel with plastic
clip
Fuse panel @ (black )
No. Equipment
1 Dynamic steering
2 ESC control module
A/C system pressure sensor, electrome-
3 chanical park
ing brake, Homelink, auto-
matic dimming interior rearview mirror, air
quality/outside air sensor, ESC button
5 Sound
actuator/exhaust sound tuning
6 Headlight range contro l/cornering light
7 Headlight (cornering light)
Control modu les (e lectromechanical park-
8 ing brake, shock absorber, quattro Sport,
trailer hitch), DCDC converter
9
Adaptive cruise control or high voltage
battery (hybrid drive)
11 Side assist
12 Headlight range control, parking system
13 Airbag
14 Rear w iper
15 Auxi
liary fuse (instrument panel)
1 6 Auxiliary fuse terminal 15 (engine area) Fuses
and bulbs
Fuse panel @ (brown)
No . Equipment
1 Electric exhaust door
2 Brake light sensor or brake pedal
move-
ment sensor (hybr id drive)
3 Fuel pump
4 AdBlue pumps
or brake booster power
supply (hybrid dr ive)
5 Left seat heating with/without seat venti-
lation
6 ESC
7 Horn
8 Left
front door (window regulator, central
locking, mirror, switch, lighting)
9 Wiper motor
10 ESC
11 Left
rear door (window regu lator, switch,
lighting)
12 Rain and light sensor
Fu
se panel © (re d)
No . Equipment
3 Lumbar support
4 Dynamic steering
5 Climatized cupholder
6 Windshie
ld washer system, headlamp
washer system
7 Vehicle electr ical system control module 1
8 Vehicle e
lectrica l system control module 1
9 Panorama sunroof
10 Vehicle e lectrica l system control module 1
11 Sun shade (pano rama sunroof)
12 Anti-theft a
larm system
267
Fuses and bulbs
Right cockpit fuse assignment
Fig . 225 Right s ide of the cockpit: fuse panel wit h plastic
clip
Fuse panel @ (black)
No. Equipment
5 Steering column sw
itch module
7 Terminal 15 diagnostic connector
8 Gateway (Oatabus diagnostic interface)
9 Auxiliary heater
Fuse panel@ (brown)
No. Equipment
1 CD /DVD player
2 Wi-Fi
3 MM I/Radio
4 Instrument cluster
5
Gateway (instrument cluster control mod-
ule)
6 Ignition lock
7 Light dial
8 Climate control system blower
9 Steering column lock
10 Climate control system
268
No. Equipment
11 D
iagnost ic data link connecto r, terminal
30
12 Steering column switch module
Right luggage compartment fuse
assignment
Fig. 226 Righ t side of the lu ggage compartment: fuse pan
e l w ith plastic clip
Fuse panel @ (black)
No. Equipment
1 Luggag e compartm ent lid control module
2 Trailer contro
l module
3 Trailer con trol module
4 Trailer control module
s Elec trom echanica l parking brake
6 E lectronic damping control
7 Electromechanical parking brake
8 Tail lights
9 quattro Sport
10 Tail lights
11 Central locking
system
12 Termina l 30