2012 AUDI A7 heating

Engine cooling system
Coolant
The engine coolant performs two functions: it
keeps the engine from overheating and it pro ­
tects the engine from freezing in the winter .
The cooling system is sealed and generally re­
quires little attention .
The cooling system has been filled at the fac­
tory with a permanent coolant which does not
need to be changed. The coolant consists of a
mixture of water and the manufacturer's gly ­
col-based coolant additive G12++ antifreeze
with anticorrosion additives (50% for USA
models; 60% for Canadian models). This mix­
ture both assures the necessary frost protec­
tion and protects metal components in the
engine's cooling system from corrosion and
scaling. It also raises the boiling point of the
coolant.
Do not reduce the concentration of the cool­
ant in the summer by adding plain water.
The
proportion of coolant additive must be at
least 50% but not more than 60%
to main­
tain antifree ze protection and cooling efficien­
cy. If the coolant frost protection is too low,
the coolant could freeze and damage the vehi ­
cle heating and engine cooling system.
For year-round driving, antifreeze is added at
the factory for temperatures down to:
- -31 °F ( -3 5 °C) USA
- -40 °F ( - 40 °C) Canada.
You can mix the G12 ++ coolant additive with
other additives (G12+ or G12). Always check
with your authorized Audi dealer.
& WARNING
Before you check anything in the engine
compartment, always read and heed all
WARNINGS
~ .&. in Working in the engine
compartment on page 216.
(D Note
- Before winter sets in, have the coolant
checked to see if the coolant additive in
Checking and filling 223
your vehicle is sufficient to meet the cli­
mate conditions. This is especially impor­
tant if you live in a region where the win­
ter is extremely cold. If necessary, in­
crease the proportion of coolant additive
to 60% .
- When adding coolant additive to your
cooling system, remember :
- We recommend using only coolant ad­
ditive G12++ (check the label) for your
vehicle. This coolant additive is availa­
ble at authorized Audi dealers. Other
types of antifreeze can significantly re­
duce corrosion protection. The result­
ing corrosion can cause a loss of cool­
ant and serious engine damage.
- Do not add any type of radiator leak seal­
ant to your vehicle's engine coolant.
Adding radiator repair fluid may adverse­
ly affect the function and performance of
your cooling system and could result in
damage not covered by your New Vehicle
Limited Warranty.
Checking the engine coolant level
The engine coolant level can be checked with
a quick glance.
M AX f
MINf
Fig. 172 Engine compar tment: markings on the coo l­
an t expa nsion tank
Before you check anything in the engine com­
partment,
always read and heed all WARN­
INGS ¢.&, in Working in the engine compart­
ment on page 216 .
"' Park your vehicle on a level surface .
"' Switch off the ignition.
"' Read the engine coolant level from the
coolant expansion tank~
fig. 172. With a

260 Fuses and bulbs
Fuses and bulbs
Fuses
Replacing fuses
Fuses that have blown will have metal strips
that have burned through.
Fig. 193 Driver side of the cockpit: fuse panel cover
The fuses are located at the front left and
right of the cockpit and behind the trim on
the right side of the luggage compartment.
• Switch the ignition and the affected electri­
cal equ ipment off.
• Check the following table to see which fuse
belongs to the consumer.
• Remove the cover¢
fig. 193 or¢ page 214,
Opening the side trim.
• To remove the purple plastic cl ip if necessa­
ry
ll, hold onto it at the small side and pull
it out of the fuse panel
c:> page 260,
fig. 194 .
• Remove the clamp from the rear side of the
fuse cover <>
fig. 193 .
• Remove the fuse using the clamp and re­
place the blown fuse w ith an ident ical new
one.
A WARNING
Do not repair fuses and never replace a
blown fuse with one that has a higher amp
rating. This can cause damage to the elec­
trical system and a fire.
ll You ca n dispose of the plastic clip after remov ing it.
(D Note
If a new fuse burns out again after shortly
have you have installed it, have the electri­
cal system checked by your authorized Au­
di dealer .
(D Tips
-The following table does not list fuse lo­
cations that are not used.
- Some of the equipment items listed are
optional or only available on certain
model configurations.
Driver side cockpit fuse assignment
Fig. 194 Drive r side cockpit: fuse panel with plastic
bracket
Fuse panel @ (black)
No. Equipment Amps
1
Switch panel, seat heating,
5 starting assist, control module
2
Automatic dimming interior
s rearview mirror
4
Suspension control system sen-
5 sor
ESP control module
5

Glove compartm ent (cooled) . . . . . . . . . . . 56
Gross Veh icle Weight Rating (GVWR) ... 270
H
Head-up Di splay . . . . . . . . . . . . . . . . . . . . . 26
H eadlig hts
C leaning system ... .... ... .. .. .. .. ..
45
Defective .. ...... ..... .. .... .. .. .. 20
H eadlig ht range control . . . . . . . . . 21, 41
Washer rese rvoir .......... ... ... .. 230
Head restraints . . . . . . . . . . . . . . . . . 52, 122
Ad justing .. .. .. .. .... ... .. .. .. ... 122
Front seats . . . . . . . . . . . . . . . . . . . . . . . . 52
Rear seats . . . . . . . . . . . . . . . . . . . . . . . . . 52
Removi ng .. .. ... .. ... ... .. .. .. .... 52
Heated
exterior mi rrors ....... ... .. .. .. .. ..
47
rear window (automatic climate contro l) 68
rea r window (cl imate control) . .. .. .. .. 66
seats (automatic climate contro l) . . . . . . 68
seats (cl imate control) .......... .... . 66
windshie ld washer spray nozzl es ... ... 45
Heating . . . . . . . . . . . . . . . . . . . . . . . . . . . . 64
H eavy clo thing and safety belts . .. .. .. . 13 1
High beam . ................ ... ... ... 43
H igh voltage warning labe l .. .. .. .. .. . 270
H ome Link ® universal remote cont ro l .. . 115
Hood (release lever) ........ .. .. .. .. . 216
H orn ... .. .. .. ... .. ..... ... .. .. .... . 8
H ow are c hild restra int system anchors re-
l ated to child safety ............. ....
177
How many airbags does my vehicle have? 145
H ow o ften sho uld I check my t ire p res-
sures? . ... .. .. .... .. .... ... .. .. ...
23 8
How safety belt pre tensione rs wo rk ... . 135
Hydroplaning ............. .... .. .. . 242
I
Immo bilizer . . . . . . . . . . . . . . . . . . . . . . . . 25
Impor tant things to do before driving . . 118
Improperly worn safety belts . .. .. .. .. . 134
Indica to r ligh ts
refer to Wa rning/indicator lights . ... .. 11
Infant seats ... ........... .. .. .. .. . 169
Inde x 283
Installing child safety seats
Safety be lts . . . . . . . . . . . . . . . . . . . . . .
1 7 4
Installing the upper tether s trap on the
an cho rage .. .. .. .. .... ........... ..
180
Instruments
Adjus ting the light ing ......... .... .. 44
Instruments and controls General illustration . . . . . . . . . . . . . . . . . . 8
Instrument cluster .. ........... .... .
10
Interior ligh ting
Ambience lighting . .. .. .. ..... ... .. . 44
Front and rear ..... . .. .. ..... ... .. .
44
Inter mittent (w indshield wipers) .. .. .. . 4 5
l
Jack 252
Jump-starting . .. .. .. ............... 264
Jumper c ables . .. ...... ............. 2 65
K
Key ........... ... .. ................ 29
Battery replacement master key . . . . . . . 30
Emergency key . ...... ........... .. . 29
K ey rep lacemen t . . . . . . . . . . . . . . . . . . .
29
Master key . . . . . . . . . . . . . . . . . . . . . . . . 29
Mechan ica l key ..... . .. .. ..... ... .. . 30
Valet key . . . . . . . . . . . . . . . . . . . . . . . . . . 29
Kick-down
t iptron ic . ....... .. . .. ... .... ... ..
104
Knee a irbags ....... ................ 154
Desc ription .. .. .. .. ... ....... ..... 154
H ow they wor k ... ................. 156
Important sa fety inst ru ctions .... .. .. 156
L
LATC H 177
Des cription .. .. .. ................. 178
Installing a ch ild restr aint ....... .. .. 179
Loca tion . ... .. .... . ... ...... ... .. 178
Mounting and releasing the anchorage
hook ... .. .. .... .. . .. .. ..... ... ..
1 79
Leat he r .. .... .. .... ... .......... .. 2 0 7
Leather (cleaning) .. .... ......... .. .. 208
Leav ing home ..... .. . .. .. ..... ... .. . 4 3
Lifting jack ....... .. ..... .......... 256
•
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286 Index
Replacing Fuses . ..... ... . ...... ... .. .. .... . 260
Light bulbs .... ... .... ... .. .. .... . 263
Tires and whee ls ......... .. .. ..... 243
W indshield wiper blades ..... .. .... .. 46
Report ing Safety Defects . ... .. ... ... . 12 6
Rese t button . . . . . . . . . . . . . . . . . . . . . . . . 25
Retractor ...... ........... ........ . 131
Revers ible ma t .......... .. .. .. .. .. .. 6 2
R ims (cleaning) ............. ... .. ... 205
Roof rac k ..... .. .. ..... ... .. .. .... .. 57
L oading . ... .. . .. ..... ... .. .. .... .. 58
Roof weight . . . . . . . . . . . . . . . . . . . . . . . 58
s
SA FE .. ... ... .. .. ..... ... .. .. .... .. 25
S afe d riving hab its ......... .. .. .. .. . 118
Safety belt position ........ .. .. .. .. . 132
Safety belt he ight ad justment .. .... . 134
Safety belts worn by p regnant women . 133
Safety belt pretensioner ... .. .. .. .. ... 135
Service and disposal .......... .. .. . 135
S afety bel t pre tens io ners
Pr e sense . .... .. ..... ... .. .. .... . 18 2
Safety belts . . . . . . . . . . . . . . . . . . . . . . . . 13 1
cleaning . .. ................ ... ... 209
D anger to passe ngers w ho do not wea r a
s a fety be lt .............. .. .. ..... 129
F asten ing . .... .. ..... ... .. .. .... . 13 1
Height adjustment . . . . . . . . . . . . . . . . . 134
Imp roperly worn . ..... ... .. .. .... . 134
Not worn . . . . . . . . . . . . . . . . . . . . . . . . 129
Safety belt position ....... .. .. .. .. . 132
Safety instructions . . . . . . . . . . . . . . . . . 131
Secur ing ch ild safety seats . . . . . . . . . . 17 4
Specia l co nsiderations fo r pregnant
women .. .. ............. .. .. .. .. . 133
Unfaste ning .. ........... .... .... . 133
War ning/ indica to r li gh t .... .. .. ..... 12 8
Warn ing ligh t . ... ..... ... .. .. .... .. 16
Why YOU MUST wear them ... ... ... . 128
Worn properly . . . . . . . . . . . . . . . . . . . . 130
Safety bel t tensione r
d rive sele ct . ... .......... .. .. .. .. .. 9 6
Safety belt warn ing light .. .. .. .. .. .. . 128
Safety compliance sticker ... .. .. .. .. . 270 Sa
fety eq uipment . .... .. ..... ... .. .. 118
Safety featu res for occupant rest ra int and
protection .. .... .. ............. .... 118
Safety gu idelines
Seat adjustment . . . . . . . . . . . . . . . . . . . . 50
Safety instr uctions
E ngine compartment . .. ..... ... .. .. 216
for side c urtain airbags ......... .... 161
for using child safety seats .... .. .. .. 167
fo r using safety belts ........... .. .. 131
Monitoring the Advanced Airbag Sys -
tem .. ..... ... .. .. .......... .... . 152
Safety systems Warning/ind icator lights ........ .... . 17
S eat adjustment
Contro ls . . . . . . . . . . . . . . . . . . . . . . . . . . 51
Drive r's seat . . . . . . . . . . . . . . . . . . . . . . . 50
Front passenger's seat .............. . 51
Front seats . . . . . . . . . . . . . . . . . . . . . . . . 50
Head restra ints . . . . . . . . . . . . . . . 52, 122
Safety gu idelines . ................ .. 50
Seat be lts
WhyYOUMUSTwearthem .... .. .. .. 128
Seat heating/ven tila tion (automat ic cli-
mate control) . . . . . . . . . . . . . . . . . . . . . . . 68
Seat heating (climate con trol) . . . . . . . . . . 66
Seating position Driver .... .... ................... 119
Front passenger ............... .... 120
How to adj ust the front seats .... .. .. 120
Incorrect seat position .............. 122
Occu pan ts .. ... .. ..... ....... ... .. 119
Rea r passengers .. ............. .... 121
Seat memory . . . . . . . . . . . . . . . . . . . . . . . 53
Seats ( number) .... ... .. ..... ... .. .. 128
Se lective unlock feature . .......... ... . 32
Se lector lever ... .. .. .... .... ... .. .. 103
Emergency re lease ............. .... 107
Se rv ice and d isposa l
Safety be lt pre tensioner ..... .... . .. 135
Se rv ice interval display . . . . . . . . . . . . . . . . 25
S hi ft buttons .. .. .. ............. .. .. 106
S id e ai rbags
D escription . ..... .. .... .... ... .. .. 15 7
How they wor k ... .. ... ..... ... .. .. 158

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
•
•

Wheel bolts Torque ..... .. ................ .... 248
Wheels ... .. ................. .. ... 231
Cast alloy .. ............. .. .. .. ... 205
Checking tire pressure ..... .. .. .. .. . 237
Cold tire inflation pressure ....... .. . 235
General notes ..................... 231
Glossary of tire and loading terminolo-
gy .. .... .. ................. .. ... 232
New tires and wheels ...... .. .. .. .. . 242
T ires and vehicle load limits .. .. ... .. 239
When must a safety belt be replaced? .. 131
When must the airbag system be inspect-
ed? ... .. .. .. .... ............. .. .. . 149
When should I adjust the tire pressures? 238
When should I check the tire pressures? . 238
Where are lower anchorages located? .. . 178
Where can I find the tire pressures for my
car? .. .... .. .. ............. .. .. ... 237
Why safety belts? . . . . . . . . . . . . . . 128, 129
Windows Cleaning . .. .... .. .... ... .. .. .. .. . 204
defrosting (automatic climate control) . 68
defrosting (climate control) .. .. .. .. .. 66
Windshield Clean ing ... ... .. .. ...... .. .. .. .. .. 45
defrosting (automatic climate control) . 68
defrosting (climate control) .. .. .. .. .. 66
Windshield washer system .. .. .. .. .. .. 45
Washer fluid level . . . . . . . . . . . . . . . . . . 20
Washer reservoir .... ..... .. .. .. .. . 230
Windshield wipers Folding up . ............. .... .. .. .. 46
Indicator light . . . . . . . . . . . . . . . . . . . . . 20
Replacing windshield wiper blades ..... 46
Switching on/off ............. ... ... 45
Winter operation Battery .. .. ............. .... .. ... 226
Cooling system ........... .... .. .. . 223
Defrosting windows (automatic climate
control) . . . . . . . . . . . . . . . . . . . . . . . . . . . 68
Defrosting windows (climate control) . . 66
Seat heating (automatic climate control) 68
Seat heating (climate control) . . . . . . . . 66
Steering wheel heating ....... ..... .. 69
Tires . ..... .. ................ .... 189
Windows .. ................ ... ... 204
Index 289
Winter tires ........................ 246
All-wheel drive ..... ............... 246
•
•
X
Xenon-Lights . . . . . . . . . . . . . . . . . . . 41, 263