2013 AUDI A7 engine coolant

238 Checking and filling
the level may be slightly above the "max"
marking.
The location of the coolant expansion tank
can be seen in the engine compartment illus­
tration
¢ page 232.
To obtain an accurate reading, the engine
must be switched off.
The expansion tank in your vehicle is equipped
with an electric coolant level sensor.
When the coolant level is too low, the warning light in the Auto-Check System¢
page 16 will
illuminate until you add coolant and the level
has been restored to normal. Even though
there is an electric coolant level sensor , we
still recommend you check the coolant level
from time to time.
Coolant loss
Coolant loss may indicate a leak in the cooling
system. In the event of coolant loss, the cool­
ing system should be inspected immediately
by your authorized Audi dealer.
It is not
enough merely to add coolant.
In a
sealed system, losses can occur only if
the boiling point of the coolant is exceeded as
a result of overheating.
_& WARNING
The cooling system is under pressure and
can get very hot. Reduce the risk of scald­
ing from hot coolant by following these
steps. -
- Turn off the engine and allow it to 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 ap­
plying light, downward pressure on the
top of the cap .
- To avoid being burned, do not spill anti­ freeze or coolant on the exhaust system
or hot engine parts. Under certain condi­
tions, the ethylene glycol in engine cool­
ant can catch fire .
(D Note
Do not add any type of radiator leak seal­
ant to your vehicle's engine coolant. Add­
ing radiator repair fluid may adversely af­
fect the function and performance of your
cooling system and could result in damage not covered by your New Vehicle Limited
Warranty .
Adding coolant
Be very careful when adding engine coolant.
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 230.
.. Turn off the engine .
.. Let the engine cool down.
.. Place a thick rag over the coolant expansion
tank ¢
fig. 192 and carefully twist the cap
counter-clockwise ¢,&. .
.,. Add coolant.
.. Twist the cap on again
tightly.
Replacement engine coolant must conform to
exact specifications ¢
page 23 7, Coolant. We
recommend using only coolant additive G12+
+, G13 or in an emergency G12+. 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 antifreeze
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.
_& WARNING
-= -- The cooling system is under pressure and
can get very hot. Reduce the risk of ..,_

scalding from hot coo lant by following
these steps.
- Turn
off the engi ne and a llow it to cool
down.
- Protect your face, hands and arms from
escapi ng fl uid and steam by cover ing
the cap with a large, thick rag .
- Turn the cap slowly and very ca refully
i n a cou nte r-clockw ise dir ect ion while
a pply ing lig ht, downwa rd p ress ure on
the top of the cap.
- To avo id being burned, do no t sp ill an­
tifree ze o r coolan t on t he exh aust sys­
tem or ho t engine parts . Un der certain
conditions, the ethylene glyco l in en­
gine coolant can catch fire .
- Antifree ze is poisono us. Always store an­
tifreeze in its or iginal co ntainer and we ll
o ut o f the reac h of children.
- If you drain the coolant , it must be
caught and safely stored in a p roper con ­
tainer clear ly marked "poison".
(D Note
- Coolant po llutes the env ironment and
could ca use a n engine fire . Excess coo l­
ant wi ll be forced out through the pres ­
sure re lief va lve 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¢
page 237 must be re­
stored as soon as possib le .
@ For the sake of the environment
Drained coolant should not be re used . Al­
ways dispose of used c oolant while observ­
ing all envir onmental regulations .
Radiator fan
The radiator fan switches on automa tically by
itself
An auxiliary e lectric radiator fa n switches on
and
off depending on coolant temperature
and other ve hicle operating conditions.
Checkin g and fillin g 239
After you switch the engine off, the auxi liary
fan can continue running for up to 10 minutes
- even w ith the ign ition off. It can even switch
o n again later by itself¢.& , if
- the temperature of the engine coo lant rises
due to the heat build- up from the engine in
the engi ne compartment, or
- the engine compa rtment heats up because
the vehicle is parked in intense sunlight.
&_ WARNING
--To reduce the risk of persona l in ju ry nev-
er touch the radiator fan .
- The a uxiliary electric fan is tempe rat ure
contro lled and can switch on suddenly
even when the engine is not ru nning.
- The a uxiliary radiator fan sw itches on a u­
tomatically when the engine coo lant
reaches a certai n temperature and will
cont inue to ru n until the coo lant temper­
atur e drops.
Brake fluid
Checking brake fluid level
N
N
N
.,; 0:, a,
Fig. 193 Engin e co mpa rt m ent: cove r on t he bra ke fluid
reservo ir
Before you check anything in the eng ine com­
partment,
alw ays r ead and heed all WARN­
INGS c:> A in Working in the engine compart­
ment on page 230 .
.. Read t he brake fluid level from the brake
fluid reservoir
c:> fig. 193, c:> fig. 189. The
brake fluid level must be between the "MIN"
and "MAX" markings. .,..

(D Note
Do not mix engine coolant antifreeze or
any other add itives to fi ll u p the w ind­
shie ld washer reservoir.
Checkin g and fillin g 245
•
•

-Always make sure the transm ission se­
lector lever (automatic transmiss io n) is
in P (Park position) and the park bra ke is
applied.
@) For the sake of the environment
- Changing t he eng ine settings w ill ad­
versely affect em ission levels. This is det­
rimental to the environment and increas­
es fuel consumption .
- Always observe env ironmental regula­
tions when d isposing of old engine oil,
used brake fluid, dirty engine coolant,
spent batter ies or worn out t ires.
- Undeployed airbag modules and preten­
s ioners might be classified as Perchlo­
r ate Mate rial -spec ia l hand ling may ap­
ply, see www.dts c.ca .gov/haza rdous­
was te/perch lorate. When the veh icle or
parts of the res traint system in cl ud ing
a irbag modules safety be lts wit h preten ­
sioners are scrapped, all applicable laws
and regulations must be observed. Your
a uthorized Audi dea ler is familiar w ith
these requirements and we recommend
that you have your dea ler perform this
se rv ice for you .
Additional accessories,
modifications and
parts replacement
Additional accessories and parts
replacement
Always consult an authorized Audi dealer be­
fore purchasing acce ssories.
Your veh icle inco rporates the latest safety de­
sig n featu res e nsu ring a high standard of ac­
tive and passive safe ty .
This safety could be comp romised by non-ap­
p roved changes to the ve hicle. For this reason ,
if pa rts have to be replaced, please observe
t he following points when ins tall ing addition­
a l accessories:
Con sumer In formation 29 1
Approved Audi accesso ries and genuine Aud i
parts are available from authorized A udi deal­
ers.
T hese de alers a lso have the necessary facili­
ties, tools and tra ined spec ialists to install the
parts and accessories proper ly .
A WARNING
Using the wrong spare pa rts or using non­
approved accessories can cause damage to
the vehicle and ser ious persona l injury.
- Use on ly accessories express ly approved
by Audi and ge nuine Audi spare parts
- These parts and accessories have been
specially designed to be used on yo ur ve­
hicle.
- Never install accessor ies such as tele­
phone crad les or beverage ho lders o n air­
bag covers or withi n the airbag deploy­
ment zones . Do ing so will increase t he
ris k of injury if a irbags are triggered in an
accide nt!
- Before you check anything in the engine
compa rtment, always r ead and heed a ll
W ARNINGS ~
page 224.
(D Note
-If items other than genu ine A udi spare
par ts, add-on equipmen t and accessory
items are used o r if repair wo rk is not
performed a ccord ing to spe cified met h­
ods, this ca n resu lt in s evere damage to
yo ur vehicle's engine and body (s uch as
co rrosion) and adversely affect yo ur vehi ­
cle's warranty .
- If emergency repairs mus t be performed
elsewhere, have the veh icle examined by
an authorized Aud i dealer as soon as
possible.
- The manufacturer cannot be held liable
for damage wh ich occ urs due to failure
to comply with these stipu lations.
•
•

296 Index
Checking Engine coolant level ................ 237
Tire pressure . ............. ... .... . 252
Ch ild restra ints
Danger of using child restra ints in the
front seat . ................. ..... . 151
Where can I get additional information
about child restraints and their use? .. 193
Child restraint system anchors ... .... . 189
Child safety .. .. . .......... .. .. .... . 175
Convertible locking retractor .. .. .. .. . 186
Important safety instructions for using
chi ld safety seats ......... .. .. .... . 179
I mportant things to know when dr iving
with chi ldren . ............... .... . 175
Tether anchors ............ ... .... . 192
Tether straps ..................... 192
Child safety lock Rear doors .............. .. .. .... .. 40
Child safety seats .......... .... .... . 181
Booster seats . .......... ... .. .. ... 184
Convertible ch ild seats .... .. .. .. .. . 182
Convertible locking retractor .. .. .. ... 186
H ow do I proper ly install a child safety
seat in my vehicle? ...... .. .. .. .. .. . 179
I nfant seats .............. ... .... . 181
I nstalling . ............... ... .... . 186
Installing a child restraint using the
LATCH system ................ .... . 191
LATCH system ............ .... ..... 191
Lower anchorages ............ ..... 190
Mounting and releasing the anchorage
hook .. .. .. ... .... ...... ... ... .. . 191
Safety instructions . . . . . . . . . . . . . . . . . 179
Unused safety belts on the rear seat .. 181
Cigarette lighter . . . . . . . . . . . . . . . . . . . . . 58
C leaning
Head-up Display .............. .... . 220
Matte finish paint ............ .... . 215
C leaning and protection ..... .. .. .. .. . 213
A lcantara (synthet ic suede) .......... 223
Engine compartment ....... .... ... . 224
Exhaust tail pipes .......... ... .... . 219
Fabrics and fabric coverings .. .. ..... 220
Instrument panel ............. ..... 221
Interior . . . . . . . . . . . . . . . . . . . . . . . . . . 219
Leather .. .. ... .... ...... ... ... .. . 222
MMI display/controls .. ... ... .. .. ... 219 Plastic
and vinyl . . . . . . . . . . . . . . . . . . . 217
Plastic parts . . . . . . . . . . . . . . . . . . . . . . 221
Safety be lts ... .. ................ . 223
trim strips ................... .... 217
Trim strips ................... .... 217
Cleaning the Head-up Display ......... 220
Climate control Air vents .. .. .. .. ............. .. .. . 70
Climate controls . .. ............. .. .. . 68
Climate control (four-zone)
Operation ..... .. .. .............. .. 71
Climate control (three-zone) Operation . . . . . . . . . . . . . . . . . . . . . . . . . 69
Clock ...... .... .................... 27
Closing Rear lid . . . . . . . . . . . . . . . . . . . . . . . . . . . 38
Sliding/ti lting sunroof ............ .. . 42
Co ld tire inflation pressure .......... .. 250
Coming home . .. .. ............. .... . 45
Compact spare tire .............. .... 268
Compartments . . . . . . . . . . . . . . . . . . . . . . 59
Compliance . .. .. .. ............. .... 292
Consumer Information . . . . . . . . . . 138, 289
Consumption (fuel) ... ........... ... . 25
Contacting NHTSA ................. . 138
Convenience key . . . . . . . . . . . . . . . . . . . . . 36
Starting the engine ............ .... . 75
Stopping the engine (START ENG INE
STOP button) . . . . . . . . . . . . . . . . . . . . . . 77
Switching the ignition on ....... .. .. . 75
Unlocking and locking vehicle .. .. .. .. . 36
Convertib le child safety seats ... .... .. 182
Convertible locking retractor Activating ..... .. .. ........ ... .. .. 188
Deactivating . .. .. ... ....... ... .. .. 188
Using to secure a child safety seat 1.86, 188
Coolant
refer to Eng ine coolant .... ..... .. .. 237
Cooling mode (automatic climate control) 71
Cooling mode (climate control) . . . . . . . . . 69
Cruise control Changing speed ................... . 84
Presetting your speed . ...... ... .. .. . 84
Switching off . . . . . . . . . . . . . . . . . . . . . . 84
Switching on . . . . . . . . . . . . . . . . . . . . . . . 83
Warning/indicator lights ............ . 23

(upholde r . . . . . . . . . . . . . . . . . . . . . . . . . . 59
Curve l ight ................... ... ... 102
Cylinder on demand System . .. .. .. .. .. 27
D
Data . ... .. .. ... .. .. ..... ... .. .. ... 287
D ata recorder ............. .... .. ... 196
Date display . .. .. ......... .. .. .. .... 27
D aytime running lights ... ... .. .. .. .. .. 4 3
Declaration of compliance Adapt ive cruise control ........ . ... . 292
Aud i side assist .......... .. .. .. .. . 29 2
Cell phone package ....... .. .. .. .. . 29 2
Conven ience key ....... ... .. .. .. .. . 292
E lectronic immobilizer .. ... .. .. .. .. . 29 2
Homelink ® universal remote contro l .. 292
Remote control key ....... .. .. .. .. . 292
DE F
What does th is mean when it appears in
the trip odometer display? ... .. .. .. .. 27
Defective light bulb warning . . . . . . . . . . . 22
Defrosting (w indows)
au toma tic cl imate con trol .. .. .. ... ... 72
climate control . . . . . . . . . . . . . . . . . . . . . 70
D etermining cor rect load limit ... .. .. . 255
D imensions .. .. .............. ... ... 286
Dimming the rearview mirror . . . . . . . . . . 50
Di stance . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
Door/rear lid warning . . . . . . . . . . . . . . . . . 23
Doors Power child safety lock .... .. .. .. .. .. 40
Dr iver information system
CD/radio display . . . . . . . . . . . . . . . . . . . . 23
D oor/rear lid warning . . . . . . . . . . . . . . . 23
Efficiency program . . . . . . . . . . . . . . . . . . 26
E xterior temperature d isp lay . .. .. .. .. 23
On-board computer ....... .. .. .. .. .. 25
D river seating posi tion ... ... .. .. .. .. . 13 1
drive select ............ ...... .... .. 102
adapt ive a ir suspension/spo rt . .. ... .. 102
Adap tive dampe rs ........ .. .. .. .. . 10 2
Curve ligh t ..... ......... .... .. .. . 102
E ng ine sound ... .. .... ... .. .. .... . 102
Safety belt tensioner ... ... .. .. .. .. . 10 2
Sport different ia l ...... ... .. .. .. .. . 102
Dr iving safe ly . . . . . . . . . . . . . . . . . . . . . . 130
Inde x 297
Driving through water . .. ..... ... .. .. 206
Drivi ng time ...... .. ................ 25
D uplicate key . .. .. ... ............ .. . 32
D ust fil ter
refer to P oll utant fi lter . ..... ... .. .. . 68
E
Easy entry fea ture .. .. .. ......... .. .. . 75
Efficiency program . ............. .. .. . 26
Fuel economy messages ............. 26
Other equipment . .. .......... .... .. 26
E lectr ica l accessories (sockets) . . . . . . . . . 58
El ectro-mecha nical power ass ist ... .. .. 201
E lectromechanical parking brake
E mergency brak ing ........... .... .. 80
Operation . . . . . . . . . . . . . . . . . . . . . . . . . 78
Pa rking . .. .. .. .. ... .. .......... .. . 79
Re le a sing and closing .......... .. .. . 78
St art ing ass ist . . . . . . . . . . . . . . . . . . . . . 79
Star ting from res t . . . . . . . . . . . . . . . . . . 79
Starting off with a trailer ..... ... .. .. . 80
Warning/ind icator lights .......... .. . 16
El ec tronic differenti al lock ( EDL) ... .. .. 196
Wa rning/ind ica tor lights .......... .. . 20
E lectronic immob ilizer . . . . . . . . . . . . 27, 33
E lectronic power contro l (EPC)
warning/indicator light ......... .. .. . 21
El ec tronic s peed limi ter .......... .. .. . 30
E lectronic Stabilization Cont ro l (ESC) ... 196
Warning/ind icator lights ........... .. 19
Emergency act uat ion
Doors .... .. .. .. ................. . 38
Power sunroof . .. .. ........... .... . 42
Rear lid ... .. .. .. .. . .. .... .... .. .. . 40
Emergency brak ing ... . .. .. ..... ... .. . 80
E mergency flashe r ..... ......... .. .. . 44
W arning/ind icator lights ........ .. .. . 23
Emergency re lease
Se lector lever . . . . . . . . . . . . . . . . . . . . . 115
Emergency starting . .. .. .. ..... ... .. 279
E mergency towing . .... ......... .. .. 281
Emergency warning triangle ........ .. 267
E nergy management .. .. .. ..... ... .. 202
Engine Compartment .. .. .. ........... .... 232
Coolant ... .. .. .. .... ............. 237
•
•

298 Index
------------------------------------
Data .... ....... ......... ... .... . 28 7
Start-Stop-System . . . . . . . . . . . . . . . . . . 80
start ing .. .. ................ ..... .. 75
Starting with jumper cables .. .. ..... 279
Stopping . . . . . . . . . . . . . . . . . . . . . . . . . . 77
Engine compartment ........ .... ... . 232
C losing the hood . . . . . . . . . . . . . . . . . . 231
Opening the hood ................. 230
Safety instructions ........ .. .. .... . 230
Working in the engine compartment .. 230
Engine coolant .................... . 237
Adding coolant ............ ... .... . 238
Checking the engine coolant level . . . . . 23 7
Expansion tank ........... .. .. .. .. . 237
Malfunction symbol ....... .. .. .... .. 16
Radiator fan .............. ... .. .. . 239
Temperature gauge ........ ..... .. .. 11
Engine oil ... ................ ..... . 232
Adding .. .... ........... .... .... . 235
Additives . .. ............. .. .. .. ... 235
Changing .... ... .... .... .. .. .. .. . 236
Check ing the engine oil level .. .. .. .. . 235
I ndications and cond it ions requ iring ex-
tra checking .. ........... .. .. .... . 235
I ndicator light ........... .. .. .. .. .. 18
O il consumption .......... .... .... . 234
Oil grades . ................. ..... . 232
Oil level symbol .................... 21
Pressure malfunction ....... ... .. .. .. 18
Recommended oil check intervals ..... 235
Sensor defective . . . . . . . . . . . . . . . . . . . . 21
Specification and viscosity .. .. .. .. .. . 232
Engine sound .............. ... .... . 102
E ng ine speed limitation ....... .. .. .. . . 21
Engine start-stop mode
refer to Star t-Stop-System ... .. .. .. .. 82
Engine start system (indicator lights) . ... 18
Environment Break-in period ......... .. .. .. .. .. . 204
Cata lytic converter ........ .. .. .. .. . 205
Disposing of your vehicle battery . ... . 244
Driving at high speeds .............. 207
Driving to minimize pollution and noise 206
Fuel . .. .. ............... .. .. .... . 227
Fuel economy ............ .... .... . 206
Leaks under your vehicle ... .. .. .. .. . 230
Lett ing the vehicle stand and warm up . 207
Proper disposal of drained brake fluid . 240 Proper disposal of d
rained engine cool-
ant ..... ..... .. .. .............. . 238
Proper disposal of drained eng ine
oil . . . . . . . . . . . . . . . . . . . . . . . . . 235, 236
Recycling used engine oil ........ .... 23S
Unleaded fuel .. .. ................ . 22S
What should I do with an old battery? . 244
ESC (Electronic Stabilization Control) Warning/indicator lights ........ .. .. . 19
Event Data Recorder (EDR) ........ .. .. 196
Exhaust tail pipes .. .......... ...... . 219
Expansion tank .... ................ . 237
Exterior lighting . ... ............ .. .. . 43
Exterior mirrors Adjusting ..... .. .. ........ ...... .. 49
Dimming . . . . . . . . . . . . . . . . . . . . . . . . . . 50
Heating ...... ... .. .............. .. 49
Exterior temperature display ...... .. .. . 23
F
Fastening
Booster seats .. .. ............. .... 184
Convertible child safety seats . . . . . . . . 182
Infant seats ... .. ............. .... 181
Floor mats . ..... .. ................ . 13S
Foot pedals ..... .. ..... ........... . 13S
For the sake of the environment Gasoline fumes and the environment .. 227
Reducing engine noise by early upshift-
ing ...... .... ... .. ................ 11
Refueling ... .. .. ....... ...... .. .. 227
Sav ing fuel by early upsh ifting . .. .. .. . 11
Four- zone automatic climate control . .. . 71
Front airbags
Description .... .. ................ . 1S3
How they work ... ................ . 159
Frontal coll is ions and the laws of phys ics 141
Front seats . . . . . . . . . . . . . . . . . . . . . . . . . 52
Adjusting ... .. .. ....... ...... .. .. 132
Child restraints in the front seat ...... 151
Fuel Additives .. .... .. ............. .... 225
Blended gasoline .............. .... 225
Current consumption .............. .. 25
Economy messages (efficiency program) 26
Fuel filler flap emergency release ... .. 228