check engine light AUDI A7 2014 Owner's Manual

cracked and weakened when the battery
froze.
- Charge the battery in a well ventilated
area. Keep away from open flame or elec­
trical spark. Do not smoke. Hydrogen gas
generated by the battery is explosive.
- To reduce the danger of explosion, never
connect or disconnect charger cables
while the charger is operating.
- Fast charging a battery is dangerous and
should only be attempted by a compe­
tent technician with the proper equip ­
ment .
- Battery acid that may spill during charg­
ing should be washed off with a solution
of warm water and baking soda to neu­
tralize the acid.
0 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
q page 202. The intelligent energy manage­
ment system will keep the engine battery
charged better than vehicles without this sys­
tem. To make sure the additional electrical 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
authorized dealer must code the battery in
the energy management system to enable you
to use the energy management functions cor­ rectly after replacing the battery.
Checking and filling 241
The new battery must have the same capacity,
voltage (12-volts), amperage, construction and plug sealing.
When installing the battery, make sure the ig ­
nition and all electrical consumers are switch­
ed off.
(D Note
Make sure the ventilation hose on the side
of the battery is connected, otherwise
fumes or battery acid can leak out.
- Vehicles with the Start-Stop-System* are
equipped with a special cycle-proof AGM
battery. Installing a different type of
battery can cause problems in the vehi­
cle electrical system. When replacing the
vehicle battery, always install one with
the same specifications as the original
battery.
@ 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 sulfuric acid and lead and must always be disposed of prop­
erly in compliance with all environmental
regulations. Disposing of vehicle batteries
improperly is very dangerous to the envi­
ronment.
Windshield/headlight
washer container
Fig. 199 E ng in e compar tment: cov er on th e w in ds hield
and headl ig ht* washer fluid reservoir
II-
•
•

266 What do I do now?
Changing a wheel
Before changing a wheel
Observe the following precautions for your
own and your passenger's safety when chang ­
ing a wheel .
... After you experience a tire failure, pull the
car well away from moving traffic and try to
reach
level ground before you stop o ,&.
... All passengers should leave the car and
move to a safe location (for instance, behind
the guardrail)
o A-
.. Engage the parking brake to prevent your
vehicle from rolling unintentionally
o ,&.
... Move selector lever to position Po ,& .
• If you are towing a trailer, unhitch the trailer
from your vehicle .
... Take the
jack and the spare tire out of the
luggage compartment
o page 264,
o page265.
A WARNING
You or your passengers could be injured
while changing a wheel if you do not fol­
low these safety precautions:
- If you have a flat tire,
move a safe dis­
tance off the road. Turn off the engine,
turn the emergency flashers on and use
other warning devices to alert other mo­
torists.
- Make sure that passengers wait in a safe
place away from the vehicle and well
away from the road and traffic.
- To help prevent the vehicle from moving
sudden ly and possibly slipping off the
jack, always fully set the parking brake
and block the wheel diagonally opposite
the wheel being changed . When one
front wheel is lifted off the ground, plac­
ing the Automatic Transmission in P
(Park) will
not prevent the vehicle from
moving.
- Before you change a wheel, be sure the
ground is level and firm.
If necessary,
use a sturdy board under the jack.
-
-Always store the vehicle tool kit, the jack
and the replaced tire in the luggage com­
partment
opage 136.
@ Tips
Before changing the whee l, you must acti­
vate the jacking mode, so that the auto­
matic controls for the Adaptive Air Sus­
pension* do not make it more difficult to
lift the vehicle with the jack
o page 268 .
Changing a wheel
When you change a wheel, follow these­
quence described below step-by-step and in
exactly that order.
l. Activate the vehicle jack mode*
opage 268 .
2. Remove the decorative wheel cover* . For
more details see also
o page 267, Deco­
rative wheel covers
or o page 267,
Wheels with wheel bolt caps.
3. Loosen the wheel bolts o page 268.
4. Locate the proper mounting point for the
jack and align the jack below that point
opage 268.
5. Raise the car with the jack o page 268.
6. Remove the wheel with the flat tire and
then install
the spare opage 270.
7. Tighten all wheel bolts lightly .
8.
Lower the vehicle with the jack .
9 . Use the wheel bolt w rench and
firmly
tighten all wheel bolts o page 268.
10. Replace the decorative wheel cover*.
11. Deactivate the vehicle jack mode * in the
MMI:
I CARI function button > (Ca r)* sys­
tems
control button > Servicing & checks
> Air susp.: jack mode > Off.
The vehicle jack mode* switches off automati­
ca lly at speeds above 6 mph (10 km/h) .
A WARNING ,-
Always read and follow all WARNINGS and
in format ion
o .&. in Raising the vehicle on
page 269
and opage 271.

2 76 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 vehicle,
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 22 7.
(D Note
- App lying a higher voltage booster bat­
tery will cause expensive damage to sen­
sitive electronic components, such as
contro l units, relays, radio, etc .
- Th ere must be no electrical contact be­
tween the vehicles as otherwise current cou ld already start to f low as soon as the
positive(+) terminals are connected. .,.

_______________________________ I~ n~ d:::: e~x 291
AUTO
automatic climate control ... ... .. .. ..
73
Automatic headlights ............... 44
climate control . . . . . . . . . . . . . . . . . . . . . 70
Auto Lock . . . . . . . . . . . . . . . . . . . . . . . . . . 34
Automatic belt retractor . . . . . . . . . . . . . 143
Automatic climate control
Air vents ... ............. .... .. ....
73
Automatic recirculation ...... .. .. .. .. 74
Operation . . . . . . . . . . . . . . . . . . . . . . . . . 72
Setup . .. ... ...... ............. ... 74
synchron izing ......... ...... .... ... 73
Automatic Shift Lock (ASL) .. .. .. .. .. . 110
Automatic transmission ....... .. .. .. . 109
Automatic Shift Lock (ASL) .......... 110
Driving .... ................ ... ... 111
Emergency mode . . . . . . . . . . . . . . . . . . 114
Emergency release ........ .. .. .. .. . 115
Kick-down .. ............. .... .. ... 113
Manual shift program ....... .. .. .. . 113
Selector lever ............... ... ... 109
Automatic wipers .................... 48
Auto Safety Hotline .......... .. .. .. . 138
Average consumption ....... .. .. .. .. .. 25
Average speed . . . . . . . . . . . . . . . . . . . . . . .
25
Avoid damaging the vehicle .. .. .. .. .. . 206
B
Bag hooks . . . . . . . . . . . . . . . . . . . . . . . . . . 67
Battery ..... .. ................ .... 238
Charging ... ................ ... ... 240
Important warnings ...... .. .. .. .. . 238
Jump starting ............ .... .. ... 276
Location . .. ............. .... .. ... 238
low ..... ... ...... ............. .. 202
Replacing the battery ....... .. .. .. . 241
State of charge ........... .... .. .. . 202
w· t · 1n er operation ......... .. .. .. .. .
Working on the battery .... .. .. .. .. .
Before driving .............. ... ... . .
Blended gasoline 238
238
130
218
Blower (automatic climate control) . . . . . . 73
Blower (climate control) . . . . . . . . . . . . . . . 70
Booster seats ................ ... ... 184
Brake fluid
Changing the brake fluid ............
237
Checking the brake fluid level ........ 237
What is the correct brake fluid level? .. 237
What should I do if the brake fluid warn-
ing light comes on? . .............. .
237
Brake system
Anti- lock braking system .............
20
Brake assist system .............. .. 196
Brake booster .. .. ................. 200
Brake fluid ...... .. ..... .......... 237
Brake fluid specifications for refill and re-
placement ...... .. ...............
237
Brake light defective . . . . . . . . . . . . . . . . 23
Brake pads .. .. .. .... ........... .. 204
Electromechanical parking brake ..... . 79
Fluid reservoir ..... ............... 237
How does moisture or road salt affect the
brakes? . .. .. .. .. .. ...............
200
Warning/indicator lights ........ .. .. . 15
Worn brake pads symbol ............ . 21
braking guard
Settings ... ..... .. ................
93
Braking guard ... .. .... ........... .. . 86
Messages . .. .. .. .. ............... . 93
Break-in period .. .. ... ... ...... ..... 204
Brake pads ...... .. ............... 204
Tires
Bu lbs
C
...... .. .. .. .................
204
275
California Proposition 65 Warning ..... 228
Battery specific .. .. .............. . 239
Capacities .... .. .. .... ............. 283
Engine oil ... .. .. ................. 229
Carbon parts
Cleaning . . . . . . . . . . . . . . . . . . . .
215,216
Car carrier
Transporting your vehicle ......... ..
280
Care ....... .. .. .. ... ............ .. 213
Cargo area ........ .. ............... 136
Cargo net . . . . . . . . . . . . . . . . . . . . . . . . . . . 66
Catalytic converter . ............. .. .. 205
Center armrest
Cockpit ... .. .. .. .. . .. .... ........ .
56
Central locking . ..... ................ 34
Emergency locking .... ......... .. .. . 38
•
•

29 4 Index
Start -Stop -System . . . . . . . . . . . . . . . . . . 81
starting .... ... . ...... ... .. .. .... .. 76
Starting with jumper cab les .. .. .. .. . 276
Stopping . . . . . . . . . . . . . . . . . . . . . . . . . . 77
E ng ine compartmen t ... .... .. .. .... . 229
C losing the hood . ..... ... .. .. .... . 228
Opening the hood ..... ... .. .. .... . 227
Safety instructions ..... ... .. .. .... . 227
Working in the engine compartment . . 227
E ng ine coolan t ... .. ... .... .. .. .. .. . 234
Adding coolant . .. ..... ... .. .. .... . 235
Checking the engine coolant leve l .. .. . 235
Expansion tank . .. ..... ... .. .. .... . 235
M alfunct ion symbo l . . . . . . . . . . . . . . . . . 17
Radi ator f an .... ... .. ...... .. .. .. . 236
T emperature gauge ........ .... ..... 11
Eng ine oil ... ... .. ..... ... .. .. .... . 229
Adding .... ... . ...... ... .. .. .... . 232
Addit ives . .... .... .... ....... .. .. . 232
Ch ang ing .. .... .. ... .. .. .. .. .. ... 233
Check ing the eng ine o il level .. .. .... . 232
Ind ications and cond it ions req uiring ex -
tra checking .................. .... 232
I nd icator light . . . . . . . . . . . . . . . . . . . . . 18
O il cons umption . .. ... .... .. .. .. .. . 23 1
O il grades .... .... .... ... .... .. .. . 229
P ressu re mal function . ... .. .. ... ... .. 18
Recomm ended oil check int ervals . ... . 232
Sensor def ective . . . . . . . . . . . . . . . . . . . . 22
Specification and viscos ity .. .. .. .... . 229
E ng ine sound ...... ....... .. .. .. .. . 102
Eng ine speed limitat ion ...... ... .. .... 22
Engin e start-stop mode
refer to Start-Stop-System . .. .. .. .. . . 83
E ng ine start sys tem (ind icator lights) .. . . 18
E nv ironment
Break- in period .............. ... ... 204
Cata lytic conve rter ........... ... ... 205
Di ese l pa rticul ate fi lter .. .. .. .. .. .. . 205
Di sp osing of yo ur vehicle batte ry .. ... 24 1
D riving a t high speeds ... .. .. .. .... . 20 7
D riving to minimize pollu tion and noise 206
Fu el . .... .. ... .. ..... ... .. .. .... . 221
Fue l economy ... .. ... .... .. .. .. .. . 206
Leaks unde r your veh icle ..... .. .... . 227
Le tting the ve hicle stand and warm up . 207
Prope r disposal of dra ined brake flu id . 23 7 Proper disposal of d
rained eng ine cool -
ant . ... .. .... .. .. ... ..... ... .. .. 235
Proper d isposal of d rained eng ine
o il . . . . . . . . . . . . . . . . . . . . . . . . . 232, 233
Recycling used engine oil . ....... .... 232
U nleaded fuel .. .. ................ . 218
What s hould I do with an old battery? . 241
Event Data Recorde r (EDR) . . . . . . . . . . . . 196
E xhaus t tai l pipes
C leaning .. .. .. . .......... ... ... .. 214
Expansion tank .. .. .......... ...... . 235
Exterior lighting ... .. ... ..... ... .. .. . 44
E xte rior mi rrors
Adjus ting . .. .. .. .. .... .... ....... . SO
D imming . ..... .. .. ... ..... ... .. .. . 51
Heating ... .... .. ... .. ..... .... . .. . SO
E xterior tempera ture display ........... 24
F
Fastening
Booster seats . . . . . . . . . . . . . . . . . . . . . 184
Co nvertib le child safety seats ........ 182
I n fan t seats . .. .. ....... ...... .... 181
Floor mats .. .. .. .. ...... ....... .... 135
F oot peda ls ..... .. .. ... ..... ... .. .. 135
Fo r the sake of the environment
Gasoli ne fumes and the env ironme nt .. 221
Red ucing engine noise by early upshift-
i ng ....... .. .. .. .. ............... . 11
Ref ueling ..... .. ... .. ..... .... . .. 221
Saving f uel by early ups hifting ... .. .. . 11
Fo ur-zone automatic climate control . .. . 72
Front a irbags
Descrip tion .. .. . .. ........ ... ..... 153
How they work . .. .......... ...... . 159
Frontal col lisions and the laws of p hysics 141
Front seats . . . . . . . . . . . . . . . . . . . . . . . . . 53
Adjus ting . .. .. .. ........... .. .. .. 132
C hild rest rain ts in the front seat . ... .. 151
Fuel Additives ...... .. ..... ........... . 218
B lended gaso line ........ .... ...... 218
Cur rent co nsumption .... ....... .... . 25
E conomy messages (e fficiency p rogram) 2 7
Fuel fi lle r flap emergency release ... .. 223
Fuel fi ller neck ... .. .... .... ... .. .. 220
Fuel gauge . . . . . . . . . . . . . . . . . . . . . . . . 12

300 Index
Starting from rest . . . . . . . . . . . . . . . . . . . . 80
Starting off with a tra iler ... ... .. .. .. . . 80
Starting the engine .......... .. .. .. .. 76
Steer ing
Electrically adjustable steering whee l .. 75
Manually adjustable steering whee l .. .. 75
also refer to Electro -mechanical power
assist . ...... ................... . 201
Steer ing whee l
Easy entry feature ......... ... .... .. 76
Indicator light . . . . . . . . . . . . . . . . . . . . . 18
Steering whee l heating ..... ... .. ... . 74
Steering wheel column
Adj usting e lectr ically ...... .. .. .. .. . . 75
Adjusting manually ........ ... .. .. .. 75
Steer ing wheel w ith tiptronic ... .. .. .. . 113
Steps for determining correct load limit . 252
Stopping the engine . . . . . . . . . . . . . . . . . . 77
Storage . . . . . . . . . . . . . . . . . . . . . . . . 60, 64
S tronic transmission Launch Control Program ............ 114
S tron ic (automatic transmission) . .... . 109
Sunroof . .. ................... .... .. 42
Sun shade ... ................ ..... .. 48
Sun visors . . . . . . . . . . . . . . . . . . . . . . . . . . 48
Symbols
refer to Warning/indicator lights ...... 12
T
Tachometer . . . . . . . . . . . . . . . . . . . . . 12, 24
Tail lights
C leaning ................ .... ..... 214
TOI clean diesel
refer to Ad Blue .. ...... .... ... .. .. . 223
Technical data .............. ... .. .. . 282
Technical modifications ..... .. .. .... . 288
Temperature d isplay ...... .. .... .. .. .. 24
Tether anchors ..................... 192
Tether strap . ... ......... ... .. .. ... 192
Textiles Cleaning . .. ............. .. .. .. ... 216
The first 1,000 miles (1,500 km) and after-
wards ..... .. ................ ..... . 204
Three-zone climate control .. .. .. .. .. . . 70
Tie-downs . . . . . . . . . . . . . . . . . . . . . 66, 137 T
ips for the environment
Saving fuel . ..... ................ .. 63
t iptron ic (automatic transmission) 109, 113
Tire pressure .... ................... 249
T ire pressure monitoring system ....... 261
Loss of air pressure ................ 262
Malfunction ..... ................ . 262
Resetting tire pressures ......... .... 263
T ires ....... .. .. .. ............... .. 243
Service life .... .. ............. .... 253
Speed rating letter code ............ 255
Tire manufacturing date ............ 255
Tire specifications ............... .. 255
Tread depth ...................... 253
Uniform tire quality grading ..... .... 257
Winter tires ..... ... ........... ... 258
Tires and vehicle load limits ........ ... 251
T ires and wheels
Checking tire press ure ........ .. .. .. 249
Cold tire inflation pressure ....... ... 247
Dimensions . ..... ................ . 254
General notes .... ................ . 243
G lossary of tire and loading terminolo-
gy ....... .. .. .. .. ............... 244
Low aspect ratio tires ............. .. 260
New tires and wheels ........ ... .. .. 254
Replac ing ... .. .. ....... ...... .. .. 255
Snow chains ..... ... ........... ... 259
T ires and veh icle load limits ..... .... 251
Wheel bolts .................. .... 260
Winter tires ...... ................ 258
Tire service life .. .. ..... ..... ... .. .. 253
Too ls ..... ... .. .. ................ . 264
T orn or frayed safety belts ............ 143
Towing Tow truck procedures ........ ... .. .. 278
TPMS Tire pressure monitoring system . .. .. 262
T rai le r towing . .. .. ............... .. 209
Operating instructions .............. 209
Parking system ... ................ . 127
Technical requirements . . . . . . . . 209,210
Trai ler towing tips ................. 211
T rain (transport ing you r vehicle) . .. .. .. 280
Transmission .. .. .. ....... ...... .... 109
Transmission malfunction (indicator
light) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 114