AUX AUDI A4 2013 Owners Manual

Engine compartment
Be especially careful when cleaning the en­
gine compartment.
Al ways s witch off the ign ition befor e clean ­
ing the eng in e c:>
& .
Plenum panel
Remove leaves from the plenum pane l in front
of the windshield under the engine hood. This
prevents the water drain holes from becoming
blocked, and it prevents debris from entering
the vehicle interior through the heating and
ventilation ducts .
Corrosion protecti on
The engine compartment and transmission
have been corrosion-protected at the factory.
Good anti-corrosion treatment is very impor ­
tant, particular ly in the winter . If the vehicle
is frequent ly driven on salt treated roads, the
entire engine compartment and plenum panel
should be thoroughly cleaned at the end of
winter and retreated to prevent sa lt damage.
At the same time, the underside of the vehicle
should be washed as we ll.
If the engine compartment is cleaned at any
time with grease removing solut ions
1>, or if
you have the engine washed , the anti-corro­
sion treatment is a lmost always removed as
well.
It is therefore essential to have a long­
lasting co rrosion protection reapp lied to a ll
surfaces, seams, joints and components in the
engine compartment.
A WARNING
Be aware: The engine compa rtment of any
motor vehicle is a potentially hazardous
area.
- Before working in the engine compart­
ment, be s ure to read the in format ion
c:> page 219.
- Before reaching into the front plenum
pane l, always remove the ignition key.
l ) Use o nly the co rr ect cle anin g s olu tion s. Neve r use ga s­
o line or d ie sel fuel.
Cleaning and protec tion 213
Otherwise, the windshield wiper system
could un intentionally be sw itched on,
possibly caus ing personal injury from the
mov ing wiper linkage .
- Never reach into the area around or
touch the rad iator fan. The aux iliary fan
is temperature controlled and can sw itch
on suddenly - even when the ignition is
off.
- Do not wash, wax or dry the eng ine with
the engine running . Moving or hot parts
could injure you.
- Do not clean the underside of the chas­
sis, fenders, wheel covers, or other ha rd
to reach pa rts without protect ing your
hands and arms . You may cut yourself on
sharp-edged metal parts .
- Always read and heed all WARNINGS and
o ther info rmation
c:> page 20 2.
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220 Checking and filling
-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); put manual
transmission in Neutral.
- 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
~ /1. .
A 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.

228 Check ing and filling
scalding from hot coolant by following
these steps .
- Turn off the eng ine and allow it to cool
down.
- Protect your face, hands and arms from escaping flu id and steam by cover ing
the cap with a large, thick rag .
- Turn the cap slowly and very carefully
i n a counter-clockwise direction while
apply ing l ight, downwa rd press ure on
the top of the cap .
- To avo id being burned, do not spi ll an­
tifreeze or coolant on the exhaust sys­
tem or hot engine parts . Under certain
conditions, the ethylene glyco l in en­
gine coolant can catch f ire .
- Antifreeze is poisonous . Always store an­
tifreeze in its or iginal container and we ll
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".
@ Note
- Coolant po llutes the env ironment 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
c::> page 226 must be re­
stored as soon as possible .
@ For the sake of the environment
Drained coolant should not be re used. Al­
ways dispose of used coolant while observ­
ing all environmental regulat ions .
Radiator fan
The radiator fan switches on automatically by
itself
T he radiator fan is driven by the engine via the
V-be lt . The viscous clutch regulates the speed
of the fan accord ing to the temperature of the
coolant. An a
uxiliary electric radiator fan* switches on
and off depend ing on coolant temperature
and other vehicle operat ing condit ions .
After yo u sw itch the engine off, the aux iliary
f an can continue running for up to 10 minutes
- eve n wit h the ignit ion off. It can even switc h
on again later by itself
c::> &. , if
- t he tempe rature of the engine coo lant rises
due to the heat build -up from the engine in
the engine compartment, or
- the engine compa rtment heats up because
the vehicle is parked in i ntense sunlight.
_& WARNING
- To reduce the risk of personal injury nev­
er touch the radiator fan.
- The auxiliary electric fan is temperat ure
controlled and can sw itch on suddenly
even when the engine is not running.
- The a uxiliary radiator fan sw itches on au­
tomatically when the engine coo lant
reaches a certai n temperature and will
continue to run until the coolant temper­
ature drops .
Brake fluid
Checking brake fluid level
The brake fluid level can be checked with a
quick glance.
F ig . 1 88 Engin e compart men t: Cover on the b rak e flu­
i d reservo ir
Before you check a nyth ing in the engine com­
partment,
always read and hee d all WARN ­
INGS c::> .&. in Working in the engine compart-
ment on page 219 . .,..

266 Fuses and bulbs
No.
5 Sound actuator/exhaust
sound tuning
6 Headlight
range control sys-
tern/cornering light
7 Headlight (cornering light)
Control modules (electro-
mechanical parking brake,
8 shock absorber, quattro
I
sport, trailer hitch), DCDC
converter
9 Adaptive cruise control
10 Shift gate
11 Side assist
12 Headlight range control,
parking system
13 Airbag
14 Rear wiper (allroad)
15 Auxiliary fuse (instrument
panel)
16 Auxiliary fuse
terminal 15
(engine area)
Fuse panel @ (brown)
2 Brake light sensor
3 Fuel pump
4
5 Left seat heating with/with-
out seat ventilation
6 E5C
7 Horn
-Front left door (window reg·
8 ulator, central locking, mir-
ror, switch, lighting)
9 Wiper motor
10 ESC
Two-door models: rear left
window regulator, Four-door
11 models: rear left door (win-
dow regulator, central
lock-
ing, switch, lighting)
12 Rain and light sensor
Fuse panel © (red)
3 Lumbar support
Amps
5/15
5/7,5 7,5
5
5
5
5
5
5
15
10
40
5
25
5
15/30
5
15
30
30
25
30
5
10
No. Consumer
4 Dynamic steering
6
7
8
9
Interior lighting (Cabriolet)
Windshield washer system ,
headlight washer system
Vehicle electrical system
control module 1
Vehicle electrical system
control module 1 Left rear window regulator
motor (Cabriolet)/sunroof
10 Vehicle electrical system
control module 1
11 Right rear window regulator
(Cabriolet)/sun shade motor
12 Anti-theft
alarm warning
system
Right cockpit fuse assignment Amps
35
5
35
20
30
7,5/20
30
7,5/20
5
Fig. 211 R ight cockpi t: fuse pane l wit h plastic cl ip
No. Consumer Amps
Fuse panel @ (black)
5 Steering column switch
5
module
7 Terminal 15 diagnostic
con-
nector 5
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