check engine light AUDI A7 2012 Owner's Manual

230 Checking and filling
(D Note
Never use a fast charger as a booster to
start the engine. This will seriously dam­
age sensitive electronic components, such
as control units, relays, radio, etc., as well
as the battery charger.
Battery replacement
The new battery must have the same specifi­
cations and dimensions as the original equip­
ment battery.
Intelligent energy management in your vehi­
cle is responsible for distributing the electri­
cal energy throughout your vehicle
~ page 190. The intell igent energy manage­
ment system will keep the engine battery
charged better than vehicles without this sys­
tem. To make sure the additional electrica l en­
ergy is available once again after you have
changed the battery, we recommend that you install batteries of the same type and manu­
facture only (the same as those installed at
the time your vehicle was delivered). Specifi­
cations are listed on the battery housing. Your
author ized dealer must code the battery in
the energy management system to enable you
to use the energy management funct ions cor­
rectly after replacing the battery .
The new battery must have the same capacity,
voltage (12 volts), amperage, construct ion
and plug sealing.
When installing the battery, make sure the ig­
nition and all electr ical consumers are switch ­
ed off.
(D Note
Make sure the ventilation hose on the side
of the battery is connected, otherwise
fumes or battery ac id can leak out.
@ For the sake of the environment
Because of the problem of proper disposal
of a battery, we recommend your author­
ized Audi dealer change the battery for
you . Batteries contain su lfuric acid and l
ead and must always be disposed of prop­
erly in compliance with all environmental
regulations. Disposing of vehicle batter ies
i mproperly is very dangerous to the envi­
ronment.
Windshield/head Light
washer container
Fig. 175 En g in e compart men t: w inds hield and head ­
lighr washer fluid reservoir
The washer fluid conta iner is marked w ith the
symbol~ on its cap.
"' Before you check anything in the engine
compartment,
always read and heed all
WARNINGS ~.&. in Working in the engine
compartment on page 216.
"' Lift the filler cap tongue to add washer flu ­
id. You can fill the container to the top.
"' Press the cap back onto the filler neck after
fi lling the container.
You can find the reservoir
capacity in the table
in
~ page 272.
Clean water should be used when filling up. If
possible, use soft water to prevent scaling on
washer jets. Always add a glass cleaner solu­
tion (with frost protection in the winter).
@ Note
Do not mix engine coolan t ant ifreeze or
any other additives to fill up the wind­
shield washer reservoir .

264 Emergency situations
Emergency situations
General
This chapter is intended for trained emer­
gency crews and working personnel who
have the necessary tools and equipment to
perform these ope rations.
Starting by pushing or
towing
Q;) Note
Vehicles w ith an automatic transmission
cannot be started by pus hing o r tow ing.
Starting with jumper
cables
If necessary, the engine can be started by
connecting it to the battery of another vehi­
cle.
If the engine should fail to start because of a
discharged or weak battery, the battery can be
connected to the battery of
another veh icle,
using a
pair of jumpe r cables to start the en­
g ine .
Jumper cables
Use only jumper cables of sufficiently large
cross section to carry the starter current safe­
ly. Refer to the manufacturer's specif ications.
Use only jumper cables with
insulated termi­
na l clamps which are distinctly marked:
plus(+) cable in most cases colored red
minu s(-) cable
in most cases colored black .
A WARNING
Batteries contain electricity, acid, and gas.
Any of these can cause very serious or fatal
inju ry. Follow the instructions below for
safe handling of your veh icle's battery.
- Always shield you r eyes and avoid lean­
ing over the battery whenever possible.
- A discharged battery can freeze at tem­
peratures just be low 32 °F (0 °C). Before connecting a
jumper cable, you must
thaw the frozen battery complete ly, oth­
erwise it could explode.
- Do not allow battery acid to contact eyes
or skin. Flush any contacted area with
water immediately.
- Improper use of a booster battery to start a vehicle may cause an explosion.
- Vehicle batteries generate explosive gas­
es. Keep sparks, flame and lighted ciga­
rettes away from batteries.
- Do not try to jump start any vehicle with a low acid level in the battery.
- The vo ltage of the booster battery must
also have a 12-Volt rating. The capacity
(Ah) of the booster battery should not be
lower than that of the discharged bat­
tery . Use of batteries of d ifferent voltage
or substantially different "Ah" rating
may cause an exp losion and personal in­
jury.
- Never charge a frozen batte ry. Gas trap­
ped in the ice may cause an explosion.
- Never charge or use a battery that has
been frozen. The battery case may have
be weakened.
- Use of batter ies of different voltage or
substantially different capacity (Ah) rat­
ing may cause an exp losion and injury.
The capacity (Ah) of the booster battery
should not be lower than that of the dis ­
charged battery.
- Before you check anything in the engine
compartment, always read and heed a ll
WARNINGS
¢page 210, Engine com­
partment.
«I) Note
-Applying a higher voltage booster bat­
tery will cause expensive damage to sen­
sitive electronic components, such as
contro l units, relays, rad io, etc.
- There must be no electrical contact be­
tween the vehicles as otherwise current
could already start to flow as soon as the
positive(+) terminals are connected. ..,_

Manual shift program . . . . . . . . . . . . . . 105
Selector lever .................. ... 103
Shift buttons . . . . . . . . . . . . . . . . . . . . . 106
Steering wheel with tiptronic . .. .. .. . 106
Automatic wipers .......... .. .. .. .... 45
Auto Safety Hotline ............ ... .. 126
Average consumption .......... ... .. .. 23
Average speed . . . . . . . . . . . . . . . . . . . . . . . 23
Avoid damaging the vehicle .. .. .. .. .. . 193
B
Battery ... .. .. ............. .. .. ... 226
Charging . .. ............. .... .. ... 229
Important warnings ...... .. .. .. .. . 227
Jump starting ............... ... ... 264
Location ... ... .. .. ...... .. .. .. .. . 227
l ow . .. .. .. .. ... .. ..... ... .. .. .. . 190
Replacing the battery ..... .. .. .. .. . 230
State of charge ........... .... .. ... 190
Winter operation ............ ... .. . 226
Working on the battery ....... ... .. . 227
Before driving . . . . . . . . . . . . . . . . . . . . . . 118
Blended gasoline .......... .... .. .. . 211
Blower (automatic climate control) . . . . . . 68
Blower (climate control) . . . . . . . . . . . . . . . 65
Body cavity sealing ............ ... .. . 205
Booster seats ............. .. .. .. .. . 172
Brake fluid Changing the brake fluid ....... ... .. 226
Checking the brake fluid level ... ... .. 225
What is the correct brake fluid level? .. 225
What should I do if the brake fluid warn-
ing light comes on? ....... .. .. .. .. . 225
Brake system Anti-lock braking system . ......... ... 18
Brake assist system .......... .... .. 184
Brake booster ............ .... .. .. . 188
Brake fluid .............. .... .. .. . 225
Brake fluid specifications for refill and re-
placement ................. ... ... 226
Brake light defective ......... ... .. .. 20
Brake pads . ............. .... .. ... 192
Electromechanical parking brake .. .. .. 74
Fluid reservoir ........... .... .. .. . 225
How does moisture or road salt affect the
brakes? .. ............ ...... .... .. 187
Index 279
Warning/indicator lights ............. 14
Worn brake pads symbol ............. 19
braking guard . . . . . . . . . . . . . . . . . . . . . . . 79
Messages . .. .. .. .... ........... .. . 86
Settings .. .. .. .. ................. . 86
Break-in period .. .... .. .. ...... ..... 192
Brake pads ...... .. ............... 192
T ires ... .. .. .. .. ... .. .......... .. 192
Bulbs .... .. .. .. .. .. ............... 263
C
California Proposition 65 Warning ..... 217
Battery specific .. .... ............. 228
Capacities .. .. .. .. .... ........... .. 272
Engine oil ........................ 218
Car care .. .. .. .. .. .. . .. .... ........ 200
Exterior ... .. .. .... ... .. ..... ..... 200
Interior . .. .... .. .. . .............. 206
Cargo area . . . . . . . . . . . . . . . . . . . . . . . . . 124
Cargo net . . . . . . . . . . . . . . . . . . . . . . . . . . . 61
Catalytic converter ................. . 193
Center armrest Cockpi t ..... .. ................... .
Sl
Central locking . . . . . . . . . . . . . . . . . . . . . . 31
Emergency locking . ............... .. 35
Certification ...... .. ............... 276
Changing a wheel .. ............. .. .. 254
Changi ng engine oil .... ............. 222
Chassis (undercoating) ............... 205
Checking Engine coolant level ............ .... 223
Tire pressure . .. .. ................. 237
Child restraints Danger of using child restraints in the
front seat ........................ 139
Where can I get additional information
about child restraints and their use? .. 181
Child restraint system anchors ....... . 177
Child safety ....... .. ..... .......... 163
Convertib le locking retractor ......... 17 4
Important safety instructions for using
child safety seats . .. ........... .... 167
Important things to know when driving
with children .. .... ............... 163
Tether anchors ..... .............. . 180
Tether straps .. .. ................. 180
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Defrosting (windows)
automatic climate control ... ... .. .. .. 68
climate control . . . . . . . . . . . . . . . . . . . . . 66
Determining correct load limit ... .. .. . 239
Dimensions .... .. .. .... ... .. .... .. . 271
Dimming the rearview mirror . ... .. .. .. 48
Distance . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
Door/rear lid warning . . . . . . . . . . . . . . . . . 22
Doors Power child safety lock ....... ... .. .. 37
Driver information system CD/radio display . . . . . . . . . . . . . . . . . . . . 22
Door/rear lid warning . . . . . . . . . . . . . . . 22
Efficiency program . . . . . . . . . . . . . . . . . . 24
Exterior temperature display ... .. .. .. 22
On-board computer . . . . . . . . . . . . . . . . . 23
Driver seating position . . . . . . . . . . . . . . . 119
drive select .. .. ........... .. .. .. .... 96
Adaptive dampers . . . . . . . . . . . . . . . . . . 96
Cornering light .............. ... ... . 96
Safety belt tensioner . . . . . . . . . . . . . . . . 96
Driving safely . . . . . . . . . . . . . . . . . . . . . . 118
Driving through water ........ .. .. .. . 194
Driving time . . . . . . . . . . . . . . . . . . . . . . . . 23
Duplicate key . . . . . . . . . . . . . . . . . . . . . . . 29
Dust filter
refer to Pollutant filter . . . . . . . . . . . . . . 64
E
Easy entry feature . . . . . . . . . . . . . . . . . . . . 71
Efficiency program . . . . . . . . . . . . . . . . . . . 24
Fuel economy messages . . . . . . . . . . . . . 24
Other equipment . . . . . . . . . . . . . . . . . . . 24
Electrical accessories (sockets) . . . . . . . . . 55
Electro-mechanical power assist .. . ... . 189
Electromechanical parking brake Emergency braking . . . . . . . . . . . . . . . . . 76
Operation .. ... .. .. ...... .. .. .. .. .. 74
Parking .. ............ ...... .... ... 75
Releasing and closing ........ .... ... 74
Starting assist ........... .... .. .. .. 75
Starting from rest ........ .. .. .. .. .. 75
Starting off with a trai ler ............. 75
Warning/indicator lights ......... .. .. 15
Electronic differential lock (EDL) .. ... .. 184
Warn ing/ indicator lights ..... .. .. .. .. 18
Index 281
Electronic immobilizer . . . . . . . . . . . . 25, 30
Electronic power control (EPC) warning/indicator light ............. . 19
Electronic speed limiter .......... .... . 28
E lectronic stabilization program (ESP) .. 184
Warning/indicator lights ............. 18
Emergency actuation Doors ...... .. .. ................. . 35
Power sunroof . .. .... ........... .. . 40
Rear lid ........................... 37
Emergency brak ing ... . .. .. .. .... .... . 76
Emergency flasher ... .............. .. 42
Warning/indicator lights ........ .. .. . 21
Emergency release Selector lever ...... ............... 107
Emergency starting .. .............. . 264
Emergency towing . ................. 266
Emergency warning triangle ...... .. .. 252
Energy management . ............... 190
Engine Compartment . ..... ............... 218
Coolant ... .. .. .. ............... .. 223
Data ..... .. .. .. ................. 272
starting . .. .. .. .... .. .. ...... ...... 71
Starting with jumper cables ........ . 264
Stopping ........ .. ................ 73
Engine compartment ................ 218 Closing the hood . .. ........... .... 217
Opening the hood .... ...... ..... .. 216
Safety instructions .. .............. . 216
Working in the engine compartment .. 216
Engine coolant .. .. ................. 223
Adding coolant . ...... ............. 224
Checking the engine coolant level . .. .. 223
Expansion tank .... ............... . 223
Malfunction symbol ... .. ...... .... .. 15
Radiator fan . .. .. ................. 225
Temperature gauge ............ .... . 10
Engine oil .. .. .. .. .. . .. .. ..... ... .. 218
Adding ......... .. ............... 221
Additives .. .. .. .. .. . .. .... ........ 221
Changi ng ... .. ...... ........... .. 222
Checking the engine oil level ..... .... 221
Ind ications and conditions requiring ex-
tra checking ..... .. ............... 221
Indicator light ..... .............. .. 17
Oil consumption .. .. .............. . 220
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28 2 Index
Oil grades . ...... ..... ... .. .. .... . 218
Oil level symbol ....... ... .. .. .... .. 20
Pressure malfunction . .... ... .. .... . . 1 6
Recommended oil check intervals ..... 221
Sensor defective . . . . . . . . . . . . . . . . . . . . 20
Specification and viscos ity ... ... .. ... 218
Engine speed limitation ... .. .. .. .... . . 20
E ng ine start system (indicator lights) .... 17
Environment Break- in period ........... .. .. .... . 192
Catalytic converter ................. 193
D isposing of your vehicle battery ..... 230
D riving at high speeds ..... .. .. .. .. . 195
D riving to m inim ize pollution and no ise 194
F uel ... ...... ............. ...... . 213
F uel economy .. . ...... ... .. .. .... . 194
L eaks under your veh icle ... .. .. .. .. . 2 16
L etting the vehicle stand and warm up . 195
Proper disposal of dra ined brake fluid . 226
Proper disposal of dra ined engine coo l-
ant . .. .. .... ........ ...... ... .. . 224
Proper disposal of dra ined engine
oil . . . . . . . . . . . . . . . . . . . . . . . . . 22 1, 222
Recycl ing used engine oil ... .. .. .. .. . 22 1
Un leaded fuel ............ .. .. .. .. . 211
What should I do wi th an old ba ttery? . 230
ESP (Electronic stabilization program) Warn ing/ indicato r lights . ....... ..... 18
Event Data Recorder ( EDR) ..... .. .... . 184
E xha ust tail p ipes .......... .. .. ..... 206
Expansion tank ............. .... .... 223
Exterior lighting . .. ..... ... .. .. .... .. 41
E xterio r m irrors
Ad just ing ............... .. .. .. .. .. 47
Di mm ing . ... ............ .. .. .. .. .. 48
H eating ..... .. .. ..... ... .. .. .... .. 47
E xte rio r temperatu re d isplay ... .. .. .. . . 22
F
Fastening
Booster seats ............... ... ... 172
Conve rtible c hild safety seats ... .. .. . 170
I nfant seats ... .......... .. .. .. .. . 169
Fastening eyes . ........... .. .. .... .. 62
Fl oor mats . . . . . . . . . . . . . . . . . . . . . . . . . 123
Foot pedals . . . . . . . . . . . . . . . . . . . . . . . . 123 F
or the sake of the environment
Gasoline fumes and the environment . . 213
Red ucing engine noise by early upshift-
ing ... .... .... .. .................. 10
Refueling . ................... .... 213
Sav ing fuel by early ups hifting ...... .. 10
Fo ur-zone automatic climate control ... . 67
Front a irbags
Descrip tion ................... .... 141
How they work ................ .. .. 14 7
Frontal collis ions and the laws of phys ics 129
F ront seats . . . . . . . . . . . . . . . . . . . . . . . . . 50
Adjusting . ....................... 120
Child restraints in the front seat .. .... 139
F uel
Additives . ..... .. ... .. ..... .... . .. 211
B lended gaso line ... ... ..... ... .. .. 211
C urrent consumption ............... . 23
Economy messages (effic iency program) 24
Fuel filler flap emergency release . .... 214
Fuel filler neck . .. ................ . 212
Fuel gauge .. .. .. ... .. .. ... ..... .. . 11
Gasoli ne .. .. .. .. .. .... .... .... ... 211
Gasoli ne add it ives ............... .. 212
Low fue l level symbol .......... .. .. . 20
Octane rat ing .... .. .... .... ... .. .. 211
Recommendation .... .. ..... .... . .. 211
Ref uel ling ..... .. .. ... ..... ... .. .. 213
Reserve ... ...... ................. . 11
Tank capac ity ................. 11,272
F uses
Assignment ..... .. ... ..... ... .. .. 260
Replacing ..... .. ... .. ..... .... . .. 260
G
Garage door opener (HomeLink ®) . ... .. 115
Garment hooks . . . . . . . . . . . . . . . . . . . . . . 56
Gas discharge lamps ............. .... 263
Ga uges
E ngine coo lan t temperature . . . . . . . . . . 10
Fuel gauge . . . . . . . . . . . . . . . . . . . . . . . . 11
Speedometer .... .. .... .... ... .. .. . 25
Tachometer . . . . . . . . . . . . . . . . . . . . . . . 11
Tr ip odometer .................. .. . 25
Genera l illustr ation ... .......... .. .. .. 8
Generator (warning/indicator lights) .... 16
G lossary of tire and loading terminology 232

Side assist Activating and deactivating . . . . . . . . . . . 88
Cleaning sensors ............ ... .. . 202
Description . ............. .... .. .... 88
Informational and alert stage signals .. 90
Messages in instrument cluster display . 94
MMI settings .... .. ...... .. .. .. .. .. 93
Operation . . . . . . . . . . . . . . . . . . . . . . . . . 89
Safety tips . . . . . . . . . . . . . . . . . . . . . . . . 94
Sensor detection area . . . . . . . . . . . . . . . 89
Side curtain airbags ........... .... .. 160
Description .... .. .. ...... .. .. .. .. . 160
How they work .............. ... ... 161
Safety instructions ........ .. .. .. .. . 161
Side marker lights ......... .. .. .. .. .. 41
Ski sack ..... .. ................ ..... 62
also refer to Trunk pass-through .. .. .. 63
Sliding/tilting sunroof Emergency closing .......... .. .. .. .. 40
Opening and closing ...... .. .. .. .. .. 39
Snow chains . ................ ... ... 247
Socket . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 55
Sources of information about child re-
straints and their use ....... .. .. .. .. . 181
Space-saving spare tire ...... .. .. .. .. . 253
Spare tire .... ................ ... ... 253
Speedometer . . . . . . . . . . . . . . . . . . . . . . . 25
Speed rating letter code ..... .. .. .. .. . 243
Speed warning system ...... .. .. .. .. .. 76
Star button . . . . . . . . . . . . . . . . . . . . . . . . . 23
START ENGINE STOP button ........... 71
Starting from rest .......... .. .. .. .. .. 75
Startingoffwithatrailer .... .. .. .. .. .. 75
Starting the engine .................. 71
Steering Electrically adjustable steering wheel .. 70
Manually adjustable steering wheel .. .. 70
also refer to Electro-mechanical power
assist ..... .. ................ .... 189
Steering wheel Easy entry feature . . . . . . . . . . . . . . . . . . 71
Indicator light . . . . . . . . . . . . . . . . . . . . . 17
Steering wheel heating .... .. .. .. .. .. 69
Steering wheel column Adjusting electrically ...... .. .. .. .. .. 70
Adjusting manually ....... .. .. .. .. .. 70
Steps for determining correct load limit . 239
Index 287
Stopping the engine . ............... .. 73
Storage . . . . . . . . . . . . . . . . . . . . . . . . 55, 60
Sunroof .... .. .. .. ... ............ ... 39
Sun shade .. .. .. .. ................. . 45
Sun visors ........ .. ................ 45
Symbols
refer to Warning/indicator lights ..... . 11
T
Tachometer . . . . . . . . . . . . . . . . . . . . . 11, 22
Technical modifications .............. 276
Temperature display ............. .. .. . 22
T ether anchors . . . . . . . . . . . . . . . . . . . . . 180
Tether strap . . . . . . . . . . . . . . . . . . . . . . . 180
The first 1,000 miles (1,500 km) and after-
wards ...... .. .. .. ................. 192
Three-zone climate control . . . . . . . . . . . . 65
Tie-downs . . . . . . . . . . . . . . . . . . . . . 61, 125
Tips for the environment
Saving fuel . ... .. .. ................ 58
tiptronic ... .. .. .. ................. 102
A ut omatic Shift Lock (ASL) ...... .. .. 104
Driving .......................... 102
Dynamic shift program ............. 105
Emergency mode ... ............... 106
Kick-down . .. .. .. ................. 104
Manual shift program .............. 105
Selector lever .. .. ... ... ...... ..... 103
Tire pressure . ...................... 23 7
Tire pressure monitoring system ....... 249
Loss of air pressure ................ 250
Malfunction . .. .. ................. 250
Resetting tire pressures ............ . 251
Tires ...... ... .. .... .......... ..... 231
Service life ....... ................ 241
Speed rating letter code ........ .. .. 243
Tire manufacturing date ........ .. .. 243
Tire specifications ................ . 243
Tread depth ....... ............... 241
Uniform tire quality grading ........ . 245
Winter tires . .. ...... ............. 246
T ires and vehicle load limits ....... .... 239
Tires and wheels Checking tire pressure ............. . 237
Cold tire inflation pressure ......... . 235
Dimensions .. .. .. ................. 242
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