2015 AUDI A7 coolant temperature

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We recommend using only coolant addi-
tive
Gl2++, Gl3 or in an emergency Gl2+. Do
not use a different additive. In an emergency
use plain water until you can get the correct
additive and can restore the correct ratio. This
should be done as soon as possible .
If you have lost a considerable amount of
coolant, then you should add cold antifree ze
and cold water only when the engine is cold.
Always use
new engine coolant when refilling.
Do not fill coolant above the "MAX" mark. Ex­
cess coolant will be forced out through the 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
scalding from hot coolant by following
these steps.
-Turn off the engine and allow itto cool
down.
- Protect your face, hands and arms from
escaping fluid and steam by covering
the cap with a large, thick rag.
- Turn the cap slowly and very carefully
in a counter-clockwise direction while
applying light, downward pressure on
the top of the cap.
- To avoid being burned, do not spill an ­
tifreeze or coolant on the exhaust sys­
tem or hot engine parts. Under certain
conditions, the ethylene glycol in en­
gine coolant can catch fire.
- Antifreeze is poisonous. Always store an­
tifreeze in its original container and well
out of the reach of children.
- If you drain the coolant, it must be
caught and safely stored in a proper con­
tainer clearly marked "poison".
(D Note
- Do not add coolant if the expansion tank
is empty. Air could enter the cooling sys­
tem and damage the engine. If this is
Checking and filling 233
the case, do not continue driving. Seek
professional assistance .
- Coolant pollutes the environment and
could cause an engine fire. Excess cool­
ant will be forced out through the pres­
sure relief 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 231 must be re­
stored as soon as possible.
@ For the sake of the environment
Drained coolant should not be reused. Al­
ways dispose of used coolant while observ­ ing all environmental regulations.
Radiator fan
The radiator fan switches on automatically by
itself.
An auxiliary electric radiator fan switches on
and off depending on coolant temperature
and other vehicle operating conditions .
After you switch the engine off, the auxiliary
fan can continue running for up to 10 minutes
- even with the ignition off.
It can even switch
on again later by itself
c> .&, if
- the temperature of the engine coolant rises
due to the heat build-up from the engine in
the engine compartment, or
- the engine compartment heats up because
the vehicle is parked in intense sunlight.
A WARNING
-To reduce the risk of personal injury nev­
er touch the radiator fan.
- The auxiliary electric fan is temperature controlled and can switch on suddenly
even when the engine is not running.
- The auxiliary radiator fan switches on au­
tomatically when the engine coolant reaches a certain temperature and will
continue to run until the coolant temper­
ature drops.
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A
A/C (automatic climate control) .... .. .. 72
A/C (climate control) . . . . . . . . . . . . . . . . . 70
Accessories .. ............. .... .. .. . 296
Active lane assist . . . . . . . . . . . . . . . . . . . . 95
Activating and deactiva ting . .. .. .. .. .. 96
C leaning the camera area ... ... .. .. . 2 13
Descript ion ...... ..... ... ... ... .... 95
Instrument cluster indicator light . . . . . 96
Messages . . . . . . . . . . . . . . . . . . . . . . . . . 96
Notes on instrument cluster display . . . . 96
Sett ing the steering wheel vibrat ion .. .. 97
Adaptive a ir s uspension/sport . ... .. .. . 102
Adapt ive cruise control . . . . . . . . . . . . . . . . 86
C lea ning the sensor ....... .. .. .. .. . 213
Messages . . . . . . . . . . . . . . . . . . . . . . . . . 93
Request for driver intervention . ... .. .. 91
Stop-and-go traffic .... ... .. .. .. .. .. 90
Adapt ive Lig ht (defective) ... .. .. .. .. .. 22
AdBlue .. .. .. ................. .. ... 221
F il ling . .. .. ................. .. ... 223
Messages in the instrument cluster dis -
play . .. .. .. .. ........ ... .. ... ... . 222
Adding Eng ine coolant ........... .... .. .. . 232
Eng ine oil .. .. ........... .. .. .. ... 229
W indshield washer fluid ....... ... .. 238
Addit ives
Eng ine oi l .. ............. .... .. ... 229
Adj usti ng
A ir dist ribution (au toma tic climate con-
trol) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 73
air distribution (cl imate control) ... .. .. 70
Front seats . . . . . . . . . . . . . . . . . . . . . . . . 53
Instrument illum inat ion ... .. .. .. .. .. 47
Steer ing colum n elec trically .. .. .. .. .. 75
Steer ing colum n manually . .. .. .. .. .. 75
Temperature (automat ic climate co ntrol) 73
Temperature (climate control) .. ... ... 70
Airbag system . . . . . . . . . . . . . . . . . 147, 168
Advanced Airbag System ... .. .. .. .. . 151
Advanced Airbag System components . 155
Care ...... ... ................ .... 163
M N Chi ld ren ... ... .. .. ...... .. .. .. .. . 175 <(
~ Chi ld restra ints ........... .. .. .. ... 175
~ Components (front airbags) .. .. .. .. . 155 1.1"1 ,...., 1.1"1 ,....,
Inde x 299
Danger of fitting a ch ild seat on the front
passenger seat ..... . ... ...... ... .. 149
•
Disposa l .. .. .. .. .. . .. ... .... ... .. 163 •
Front a irbags . . . . . . . . . . . . . . . . 151, 153
How do the front airbags work? .... .. 157
How many a irbags does my vehicle
have? .. .. .. .. .. .. . .. .... .... .... 155
How the Advanced Airbag System com-
ponents work togethe r ......... .... 15 7
Impo rtant sa fe ty instru ctions on the
knee airbag sys tem ... .. .... ... .. .. 166
Important t hings to know .... ... .. .. 147
Knee airbags ... .... . ... ...... ... .. 164
Monitoring .. .. .. ................. 159
PASSENGER AIR BAG OFF light ..... .. 160
Repairs ... .. .. .. .... ............. 163
Safety instructions .. .............. . 162
S ide a irbags ... .. .. . .. .... .... .. .. 166
S ide curtain airbags . ... ..... ... .... 169
Warning/ind icator lights ........ .. .. . 19
Warning/Indicato r lights ....... .. .. 159
When must the system be inspected? 159
A ircraft
Transpo rting your vehicle 289
A lcantara
Cleaning .. .. .. .. ................. 215
A ll-wheel drive .. .... . ... ...... ... .. 200
Winter tires ..... .. . .. .. ..... ... .. 267
Alternator . . . . . . . . . . . . . . . . . . . . . . . . . . 17
Amb ience lighting . ................. . 47
Anti -freeze
refer to Engine coolant . ..... ... .. .. 231
Anti- lock b raking system ............ . 195
Warning/ind icator lights ........ .. .. . 19
Anti-slip regu lation .. ........... .... 195
Warning/ind icator lights .. .. ... ... .. . 19
Anti-theft systems Electronic immobi lizer ....... ... .. .. . 32
Asht ray .... .. .. .. .. . ............... 59
Audi braking guard
refer to brak ing guard ............. .. 86
Audi drive select
refer to drive select ... ............. 102
A udi Se rv ice Repair Manuals and Liter a-
tu re .. ... .. .. .... .. . .. ... .... ... .. 294

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Data ...... .. .... .. .... ... .. .. ... 293
Start-Stop -System . . . . . . . . . . . . . . . . . . 81
start ing . ... .... ...... ... .. .. .. .. .. 76
Starting with jumper cab les .. .. .. .. . 285
Stopping . . . . . . . . . . . . . . . . . . . . . . . . . . 77
E ng ine compartment .... ... .. .. .. .. . 22 7
C losing the hood . ..... ... .. .. .. .. . 226
Opening the hood ..... ... .. .. .. .. . 225
Safety instructions ........ .. .. .. .. . 225
Working in the engine compartment . . 225
E ng ine coolant ... ...... ... .. .. .. ... 231
Adding coolant . .. ..... ... .. .. .. ... 232
Chec king the engine coolant leve l .. .. . 23 1
Expansion tank ........... .... .. .. . 231
Malfunct ion symbo l ....... .. .. .. .. .. 16
Radiator fan .............. ... ... .. 233
Temperature gauge ........... ... ... 11
Engine oil ... .... .. .... ... .. .. .. ... 227
Adding .. .. ............. .... .. ... 229
Addit ives . .. ............. .... .. .. . 229
Changing .. .. ... .. ... ... .. .. .. ... 230
Checking the eng ine o il level .. .. ... .. 229
I ndications and cond it ions requ iring ex-
tra check ing ............. .... .. ... 229
I ndicator ligh t . . . . . . . . . . . . . . . . . . . . . 18
O il cons umption .......... .. .. .. .. . 228
P ressu re mal func tion ... ... .. .. .. .. .. 17
Recommended oil check intervals . ... . 229
Sensor defect ive . . . . . . . . . . . . . . . . . . . . 22
Specification and viscos ity .. .. .. .. .. . 227
E ng ine sound ............. .... .. .. . 10 2
Eng ine speed limitat io n ........ .. .... . 21
Engine start -stop mode
refer to Start-Stop-System . .. .. .. .. .. 83
E ng ine star t sys tem (indicator l igh ts) .. .. 18
Env ironment
Break- in period ........ ...... .... .. 203
Cata lytic converter ........... .... .. 204
D iese l par ticul ate fi lter .... .. .. .. .. . 205
Di sposing of yo ur vehicle ba ttery .. .. . 238
D riving a t high speeds .. ... .. .. .... . 206
D riving to minimize pollution and noise 205
Fu el . .... .. .. ... .. ..... ... .. .. ... 219
F ue l economy ............ .... .. ... 205
Leaks under your veh icle ... .. .. .. .. . 225
Lett ing the veh icle stand and warm up . 206
Proper disposal of dra ined brake flu id . 234
Inde x 303
Proper disposal of d rained eng ine cool -
ant . ... .. .. .. .... . ... ...... ... .. 232
Proper disposal of d rained eng ine
o il . . . . . . . . . . . . . . . . . . . . . . . . . 229, 230
Recycling used engine oil ............ 229
Un leaded fuel .. ... ................ 217
What should I do with an o ld battery? . 238
Event Data Recorder (EDR) . . . . . . . . . . . . 194
E xhaust tail pipes
Cleaning .. .. .. .. .. . .............. 213
Expansion tank .. ... ...... .......... 231
Exterior lighting ..... . .. .. ..... ... .. . 44
E xte rior m irrors
Adjus ting . .. .. .. .... ........... .. . 50
Di mming . ... .. .. .. .. .. ...... ... .. . 51
Heating ... .. .... ... .. .. ..... ... .. . 50
Exterior temperature display ........... 24
F
Fastening
Boos ter seats .. .. .. . .. .... .... .. .. 182
Co nvertib le child safety seats ........ 180
Infan t seats . . . . . . . . . . . . . . . . . . . . . . 179
Floor mats . . . . . . . . . . . . . . . . . . . . . . . . . 133
Foot peda ls ... .. .... . ... ...... ... .. 133
Fo r the sake of the environment
Gasoline fumes and t he env ironme nt .. 219
Red ucing engine noise by early upshift -
i ng ....... .. .. .. ... ............ ... 11
Ref ueling ... .... ... .. .. ..... ... .. 219
Saving f uel by early upshifting ... .. .. . 11
Fo ur- zone automatic climate control . .. . 72
Front airbags Descrip tion . . . . . . . . . . . . . . . . . . . . . . . 151
How they work . ......... ......... . 157
Frontal coll isions and the laws of physics 139
Fron t seats . . . . . . . . . . . . . . . . . . . . . . . . . 53
Adjus ting . .. .. .. .. ............... 13 0
Child rest rain ts in the front seat . ... .. 149
Fuel Additives .. .. .. .... .......... ..... 217
B lended gaso line . ............. .... 217
C u rrent cons umption .. ......... .... . 25
E conomy messages (eff icien cy program) 26
F uel fi ller flap emergency release ... .. 221
F uel fi ller neck ..... . .. .. ..... ... .. 219
Fuel gauge . . . . . . . . . . . . . . . . . . . . . . . . 12
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304 Index
Gasoline ........ ......... ... .... . 21 7
Gasoline additives ................. 218
Low fuel level symbo l . . . . . . . . . . . . . . . 22
Octane rating ............ .. .. ..... 217
Recommendation ......... .... .... . 217
Refuelling .. ................ ... ... 219
Reserve .. .. ... .... ...... .. .. .. .. .. 12
Tank capacity . . . . . . . . . . . . . . . . . 12, 292
Fuses Assignment ................. .... . 281
Replacing .. ..... ........... ... .. . 281
G
Garage door opener (Homelink) .. .. .. . . 42
Garment hooks ............ .... .. .. .. 61
Gas discharge lamps ............ .. .. . 284
Gauges Engine coolant temperature .... .. .... 11
Fuel gauge ... ........... .... .... .. 12
Speedometer ... .... ..... .... .. .. .. 27
Tachometer ................ ... ... . 12
Trip odometer .. ...... .... ... .. .. .. 27
General illustration ............ .... ... 8
Generator (warning/ indicator lights) .... 17
Glossary of tire and loading terminology 242
Glove compartment (cooled) ........... 61
Glow plug system Indicator light . . . . . . . . . . . . . . . . . . . . . 21
Gross Vehicle Weight Rating (GVWR) .. . 291
H
Head -up Display . . . . . . . . . . . . . . . . . . . . . 28
H eadlights
Cleaning ... ................ ..... . 213
C leaning system .................... 48
Defective . ................. ..... .. 22
Headlight range control . . . . . . . . . 22, 44
Washer reservoir ......... .. .. .... . 238
H ead restraints . . . . . . . . . . . . . . . . . 56, 132
Adjusting .. ................ ..... . 132
Fr ont seats . . . . . . . . . . . . . . . . . . . . . . . . 56
Rear seats .... ........... .... .... .. 57
Removing ............... .. .. .. .. .. 57
H eated
exterior mirrors . . . . . . . . . . . . . . . . . . . . SO
rear window (automatic climate contro l) 73 rear window (climate cont
ro l) . . . . . . . . . 71
seats (automatic climate control) ...... 73
seats (climate contro l) . . . . . . . . . . . . . . . 71
Steering wheel ... ............. ..... 74
windshield washer spray nozzles . .... . 48
Heating ... ..... .. .. .............. .. 69
Heavy clothing and safety belts ........ 141
High beam .. ...... ............. ..... 46
High voltage warning label ..... .. .. .. 291
Hill descent control ................. 112
Homelink (garage door opener) ..... .. . 42
Hood (release lever) .. ........... .. .. 225
Hooks . .. .. .. .. .. ............... .. . 67
Horn ..... ..... .. ................ ... 8
How are child restraint system anchors re-
lated to chi ld safety .......... ...... . 187
How many airbags does my vehicle have? 155
How often should I check my tire pres-
sures? ......... .. .. .............. . 253
How safety belt pretensioners work .. .. 145
Hydroplaning ...................... 260
I
Immobilizer . . . . . . . . . . . . . . . . . . . . . . . . 27
Important things to do before driving .. 128
Improperly worn safety belts ...... .. .. 144
Ind icator lights
Dynamic steering ................. . 200
also refer to Warning/indicator lights .. 12
Infant seats .. .. .. ... .......... .... 179
Installing child safety seats Safety belts . . . . . . . . . . . . . . . . . . . . . . 184
Installing the upper tether strap on the
anchorage . . . . . . . . . . . . . . . . . . . . . . . . . 190
Instruments Adjusting the light ing .......... .... . 47
Instruments and controls General illustration . . . . . . . . . . . . . . . . . . 8
Instrument cluster ................ .. 11
Interior lighting
Ambience lighting ............. .. .. . 47
Front and rear ... ....... ...... .. .. . 47
Intermittent (windshield wipers) ... ... . 48