2013 AUDI A4 exhaust

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.

224 Checking and filling
Checking the engine oil level
Fig . 185 MMI Disp lay : O il le ve l indic ator
Read oil level
• Park your vehicle so that it is horizontally
level.
.. Shut the engine off when it is at operating
temperature.
.. Switch only the ignition back on.
• Wait approx . two minutes .
> Select: Funct ion button ICARI > Oil level. Or
> Se lect : Funct ion button ICARI > Car sys-
tems *
control button > Servicing & checks >
Oil level.
• Read the oil leve l in the MMI* Display
~fig. 185. Add eng ine oi l if the bar o f the
oil level indicator is near "min"
c::> page 224
Depending on the way the vehicle is driven
and the operating conditions, oil consumption
can be up to a 1/2 quart per 600 mi les (0 .5 li­
ter per 1,000 km). Consumption may be high­
er within the first 3,000 mi les (5,000 km).
The o il level indicator in the MMI* Display
is only an information display. If the o il
level is too low, a min imum oil warning ap­
pears in the instrument cluster. Add o il
c::> page 224. If the hood has been opened,
the current oil level is shown in the instru­
ment cluste r the next time the ign ition is
switched on.
~ Adding engine oil
Fig. 186 En g in e compart ment: Cover on the oil filler
neck
• Before yo u check anything in the engine
compa rtme nt,
always read and heed all
WARNINGS
c::> .A in Working in the engine
compartment on page 219 .
.. Unscrew the cap hole
q fig .186, qpage221, fig.184 .
.. Carefully top off with the appropriate oil in
0.5 liter doses.
.. Check the oil level again after two minutes
qpage224.
• To p off the o il aga in, if necessary.
• Screw the cap back on the filling hole.
.8_ WARNING
- While topping off, the oil must not come
in contact with hot engine parts - fire
hazard!
- The oil filter cap must be properly se­
cured to prevent oil from being sprayed
on the hot engine and exhaust system
when the engine is running - fire hazard!
- If your skin has come in contact with the
engine oi l, you must subsequently
cleanse it thoroughly.
(D Note
- Check the oil level using the radio or
M Ml*.
If the message Please reduce oil
level
appears, contact your authorized
Audi dealer or other qualified workshop
to have excess oil extracted if necessary.
- Audi does not recommend the use of oil
additives. They may damage the engine
and adversely affect your New Vehicle
Warranty . .,..

The location of the coolant expansion tank
can be seen in the engine compartment illus­
tration
q page 221 .
To obtain an accurate read ing , the eng ine
must be switched off .
The expa nsion tank in you r vehicle is equipped
with an elec tric coolant level sensor.
When the coolant level is too low, the warning
light in the Auto-Check System
q page 18 wi ll
b lin k until you add coo lant and the level has
been restored to norma l. Even t hough the re is
an e lec tric coolant level sensor, we s till rec ­
ommend you check the coolant leve l from
time to time .
Coolant loss
Coolant loss may indi cate a leak in the coo ling
sys tem. In the event of coolant loss, the cool­
ing system should be inspected immedia tely
by your authorized A udi dealer. It is not
enough merely to add coolant.
I n a
s ealed system, losses can occur only if
the boiling point of the coolant is exceeded as
a result of overheating.
A WARNING
The cooling system is unde r press ure and
can get ve ry hot. Reduce the risk of sca ld­
ing from hot coolant by following these
steps.
- Turn off the engine and allow it to coo l
down.
- Protect yo ur face, hands and arms from
escaping fluid and steam by covering the
cap with a large, thick rag.
- Turn the cap slowly and very carefu lly in
a counter-clockwise direction wh ile ap­
plying light, downward pressure on the
t op of the cap .
- To avoid being bu rned, do not spill ant i­
freeze or coo lant on the exhaust system
o r hot eng ine parts . Unde r certai n condi­
t ions, the ethy lene g lycol in engine cool­
an t ca n catc h fire.
Checkin g and fillin g 22 7
@ Note
Do not ad d any type of radiator leak sea l­
ant to your ve hicle's engine coolant. Add ­
i ng radiator repa ir flui d may adverse ly af­
fect the funct ion and performance of your
cooling system and could result in damage not cove red by your New Vehicle l imi ted
Warranty .
Adding coolant
Be very careful when adding engine coolant.
Before you check anyth ing in the eng ine com ­
partment,
always read and heed all WARN­
INGS q & in Working in the engine compart ­
ment on page 219 .
.,. Turn off the engine.
.,. let the engi ne cool down.
.,. Place a thick rag over the coolant expansion
tank
q page 226, fig . 187 and carefully turn
the cap counter-clockwise
~ &_ .
.,. Add coo la nt.
.,. Twist the cap o n aga in
tightly.
Rep lacement engine coo lant must confo rm to
exact specificat ions ~
page 226, Coolant. We
recommend using on ly coo lant additive G 12+
+ , G 13 or in an eme rgency G12+. Do
not use a
different additive. In an emergency use pla in
water until you can get the correct additive
and can restore the correct ratio . This sho uld
be done as soon as possible.
If you have los t a cons iderab le amount o f
coolant , then you sho uld add cold antifreeze
and co ld water on ly when the engine is cold.
A lw ays use
new engine coo lant w hen refilling.
Do not f ill coo lant above t he "MAX" mark. Ex­
cess coola nt w ill be fo rced o ut through t he
pressure relief valve in the cap when the en­
gine becomes hot.
A WARNING
- The cooling system is under pressure and
can get very hot. Reduce the risk of ..,.
•
•

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
•
....

2 76 General information
designated seating position) and luggage
weight ¢.&, .
Gross Axle Weight Rating
The Gross Axle Weight Rating is the maximum
lo ad that can be applied at each axle of the
vehicle ¢Lr!, .
Vehicle capacity weight
The vehicle capac ity we ight (max. load) is list­
ed on the driver's side 8-p illar.
Roof weight
The maximum permissible roof weight is
198 lbs. (90 kg). The roof weight is made up
of the weight of the roof rack system and the
weight of the object be ing transported
¢ page 68, Loading the roof rack .
.&_ WARNING
- T he actual Gross Axle Weight Rating at
the front and rear axles should not ex­
ceed the permissible weights, and their
combination must not exceed the Gross
Vehicle Weight Rating .
- Exceeding permissib le weight ratings can
result in vehicle damage, accidents and
persona l injury.
(D Note
- The vehicle capacity weight figures apply
when the load is distributed evenly in the
vehicle (passengers and luggage). When
transporting a heavy load in the luggage
compartment, carry the load as near to
the rear axle as possible so that the vehi­
cle's handling is not impaired .
- Do not exceed the maximum permissible
axle loads or the maximum gross vehicle
weight . Always remember that the vehi­
cle's handling will be affected by the ex­
tra load . Therefore, adjust your speed ac­
cordingly.
- Always observe loca l regu lations .
.
Dimensions
The specifications refer to the basic model.
Differences may occur depending on the mod­
el type and options ordered, for example, tire
sizes.
~ Note
When driving up steep ramps, on rough
roads, over curbs, etc. it is important to re­
member that some parts of your vehicle,
such as spo ilers or exhaust system compo­
nents, may be close to the ground . Be
careful not to damage them .

_______________________________ ___:I~n ~d ~e:.::x 287
Changin g engine oi l
Chass is 225
U ndercoat ing ............ .... .. .. . 208
Checking
Eng ine coolant level ........ . .. .. .. .
226
Checking tire pressure .............. . 241
Ch ild restraints
D anger of usin g child restraints in the
front seat . . . . . . . . . . . . . . . . . . . . . . . .
146
Where can I get additional information
about child restraints and their use? ..
184
Child restraint system anchors . .. ... .. 180
Ch ild safety .. ............. .... .. ... 166
Convertible locking retractor . . . . . . . . . 176
Important safety instructions for using
ch ild safety seats .... ... .. .. .. .. .. .
169
Impo rtant th ings to know when driv in g
wi th children ............ .... .. ...
166
Insta lling a chi ld res traint using the
L A TCH system ............ .. .. .. .. .
18 1
Mounting and releasing the ancho rage
hook .... .. .. ............. .. .. ...
18 1
Tether anchors . . . . . . . . . . . . . . . . . . . . 182
Tether straps . . . . . . . . . . . . . . . . . . . . . 182
Child safety loc ks
Power windows .......... .. .. .. ....
42
Rear doors ... ........... .. .. ...... 42
Child safety seats .......... .... .. .. . 172
Booster seats ................ .. .. . 17 4
Convertible child seats .... .. .. .. .. .
173
Convertible locking retractor .. .. .. .. . 176
Danger of using child restra ints in the
front seat . . . . . . . . . . . . . . . . . . . . . . . .
146
How do I properly install a child safety
seat in my vehicle? ........ .. .. .. .. .
169
Infant seats . . . . . . . . . . . . . . . . . . . . . . 172
Installing ............ ...... .... .. 176
LATC H system ......... ...... .... .. 18 1
Saf ety inst ruc tions ........ .. .. .. .. . 169
Unused safety belts on the rear seat 17 1
Ch ild seats
L ower ancho rages ........... .. ....
18 1
Cigarette lighter . . . . . . . . . . . . . . . . . . . . . 63
Cleaning
Alcantara® (syn thetic suede) .. .. .. .. .
212
En gine compartment .............. . 213
Exhaust tail pipes ............... .. . 209
Fabr ics and fabric coverings ......... 209
Instrument panel ... . .......... .. .. 210
Interior ... .. .. .. .. . .. .......... .. 209
Leather . . . . . . . . . . . . . . . . . . . . . . . . . . 211
Matte finish paint ................. 204
MMI display/controls ... ......... ... 209
Plastic and vinyl .. .. . .. .. .. ... ... .. 206
Plastic parts ..... .. .. .. .. ......... 210
Safety belts ... .. .. . .............. 21 2
Trim strips .. .. .. .... ........... .. 206
Cleaning and protection . .. .......... . 202
Climate controls ..... . .. .......... .. . 76
Climate control system
Au tom atic recir culat ion ......... .. .. .
79
Supplementary heater ............... 79
synchronizing . . . . . . . . . . . . . . . . . . . . . . 79
Clock .. ... ... .. .... .. .. ...... ... .. . 12
Closing
Power w indows ................... .
42
Sliding/tilting sunroof ............... 44
Sunshade ....... .. . .. ......... ... . 44
Closing/opening
at the lock cylinder .. ........... .... .
38
by remote control ............. .. .. . 35
with the centra l locking sw itch ........
36
with the conven ience key . .......... .. 36
Cold tire inflation pressure .......... .. 238
Coming home ... .. .... ........... .. . 48
Compact spare tire .................. 256
also refer to Spare tire ....... ... .. .. 256
Compartments . . . . . . . . . . . . . . . . . . . . . . 66
Compass in the mirror ... ......... ... . 56
Compliance . . . . . . . . . . . . . . . . . . . . . . . . 283
Consumer Information . . . . . . . . . . 135, 280
Contacting NHTSA .... .. ......... ... 135
Convenience key
Ind icator lights .. ................. .
84
Starting engine (START ENGINE STOP
button) . .. .. .. .. .. . .. .. ..... ..... .
83
Stopping the engine (START ENGINE
STOP button) . . . . . . . . . . . . . . . . . . . . . .
84
Switching on ignition ............... . 83
un locking/loc king ............. ..... 36
Convenience opening/clos ing .......... 43
Convertible child safety seats ......... 173
•
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