2012 AUDI A7 differential

18 Instruments and warning/indicator lights ;;./~ Electronic stabilization program
(ESP)
This warning/indicator light monitors the
electronic stabilization program.
When you sw itch the ignition on, the indicator
light
G1 turns on br iefly to check the function .
If the
G1 indicator lamp blinks while driving,
the ESP or ASR (Ant i- Slip Regulation) is active ­
ly regulating.
If the
ti) indicator lamp illuminates, the sys­
tem has switched the ESP off.
If the indicator light
I) turns on, the ESP was
switched to ESP sport mode with the button
[!] c> page 184. If this is case, you can reacti­
vate the ESP by switching the ignition off and
then on again. The warning/indicator light
should go out to show that the system is fully
functiona l again.
Stability program and ABS fault! See own ­
er's manual
If the indicator light DJ and the ABS indicator
light
B (USA mode ls) ;fl] (Canada models)
turn on and the message appears, there is a
malfunction in the ABS system or electron ic
differential lock. This also interrupts the ESP .
The brakes still function with their normal
power, but ABS is not active .
Drive to your authorized Aud i dealer immedi ­
ately to have the malfunction corrected .
If the battery term inals were disconnected
and re-connected, the vehicle was jump start­
ed or the battery is very weak, the ESP sensor
system goes through a learning process for
the first few yards. The warning/ind icator
l ight illuminates . Th e warn ing/ ind icator light
goes out as soon as the learning process is
comp lete.
F or more informat ion about the ESP
c>page 184.
ABS/(8) Anti-lock braking system (ABS)
This warning/indicator light monitors the ABS
and the electronic differential lock (EDL) .
The warning/indicator light B (USA mod­
els)
l ti] (Canada models) w ill come on for a
few seconds when the ign ition is switched on .
The light will go out after an automatic check
sequence is comp leted.
There is a malfunction in the ABS when:
-The warning/indicator light does not illumi­
nate when you switch the ignition on.
- The warning/indicator light does not go out
after a few seconds.
- The warning/indicator light i lluminates
while driving.
The ESP indicator light also illum inates if
there is a ma lfunction in the ABS . The mes­
sage
Stability prog ram and ABS fault! See
owner's manual
a lso appears in the instru­
ment cluster d isp lay and a warning tone
sounds .
The brake system will still respond even
without the assistance of the ABS system.
See your authorized Audi dealer as soon as
possible to restore full braking performance .
For more information regarding the ABS
~page 184.
Malfunction in the brake system
If the brake warning light c> page 14 and the
ABS warning illum inate
together there may be
a malfunction in the ABS, and there may also
be a malfunction in the brake system itself
c> .,&. . The ABS will not work and you will no­
ti ce a change in braking response and per­
formance.
In the event of a malfunction in the brake
system
the warning/ind icator light -
(USA models)/ . (Canada models) in the in­
strument cluster flashes
c> page 14.
Malfunction in the electronic differential
lock (EDL)
The EDL works together with the ABS. The
ABS wa rning light will come on if there is a

ESP includes and/or works together with the
anti-lock brake system (ABS) , brake assist sys ­
tem, anti -slip regulation (ASR) , e lectronic dif­
ferential lock ( EDL) and e lectronic interax le
d ifferential lock* . ESP is swi tched on all the
time. In certain situat ions when you need less
traction , you can switch off ASR by pressing
the button
[ru <::;> page 186, fig . 161 . Be sure
to switch ASR on again when you no longer
n eed less t raction.
Anti-lock br aking s ystem (ABS)
ABS prevents the wheels from locking up
when braking . The veh icle can still be steered
even during hard braking . Apply steady pres­
sure to the brake pedal. Do not pump the ped ­
a l. A puls ing in the bra ke peda l indicates that
the system is he lping you to brake the vehicle.
Brake assist system
The brake assist system can decrease brak ing
d istance.
It increases braking power when the
d river p resses the brake pedal quic kly in emer­
gency situations. You must press and ho ld the
b rake peda l until the situation is over. In vehi­
cles with adaptive cruise control*, the brake
assist system is more sensitive if the distance
detected to the vehicle ahead is too small.
Anti -slip regulati on (ASR )
ASR reduces engine power when the drive
wheels begin to spin and adapts the force to
the road conditions. This makes it easier to
start, accelerate and drive up hills .
Electronic differential lock (EDL )
The ED L brakes wheels that are spinn ing and
transfers the drive power to the other drive
wheel or whee ls if the vehicle is equipped with
all-whee l drive* . This function is available up
to about 75 mph (120 km/h).
I n extreme cases, ED L automat ica lly switches
off to help keep the brake on the braked whee l
from overheating . EDL will switch on again au ­
tomatically when conditions have returned to
normal.
Int ellig ent technolog y 185
Electronic intera xle differ ential l ock */
s el ecti ve w heel torque cont rol *
The electronic interaxle differential lock (front
whee l drive) or the se lective whee l torque
control (all-wheel dr ive) operates when dr iv­
ing through curves . The front wheel on the in­
s ide of the curve or both wheels on the inside
of the curve are braked selectively as needed .
T his min imizes sliding in the front wheels and
allows for more p recise d riving through
curves . T he applicable system may no t acti­
vate when driv ing in wet or snowy conditions.
A WARNING
-
- ESP , ABS, ASR, EDL and the e lectronic in­
teraxle diffe rential lock function* cannot
overcome the laws of physics. This is es­
pecially important on slippery or wet
roads . If the systems begin acting to sta­
bilize your veh icle, you shou ld immedi­
ately change you r speed to match the
road and traffic cond itions. Do not let
the increased safety provided by these
systems tempt you to take risks. Do ing
so will increase the risk o f a loss of vehi ­
cle control, collision and serious persona l
inju ries.
-A lways adapt your speed to road, traffic
and weather conditions . The risk of los ­
ing control of the vehicle increases when
driving too fast, espec ially through
curves and on slippery or wet roads, and
when dr iv ing too close to vehicles up
ahead . ESP, ABS, the brake ass ist system,
EDL, ASR and the e lectronic interax le dif­
fe rential lock fu nction* cannot prevent
coll is ions .
- Always accelerate with spec ial care on
even, smooth su rfaces such as those that
are wet or covered with ice and snow.
The drive wheels can spin even with these assistance systems that cannot al­
ways he lp to red uce the risk of loss of ve -
hicle control. .,.
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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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