differential AUDI Q7 2012 Owner´s Manual

16 Instruments and warning/indicator lights
;;./~ Electronic Stability Control (ESC)
This warning/indicator light monitors the
Electronic Stability Control .
If the D] indicator lamp blinks while driving,
the ESC or ASR (Anti-Slip Regulation) is active­
ly regulating.
If the G] indicator lamp illuminates, the sys­
tem has switched the ESC off. In this case, you
can switch the ignition off and then on to
switch the ESC on again . The system is func­
tioning completely when the indicator lamp
switches off.
If the
I indicator lamp illuminates, the ESC
was switched off with the
I ~ OF F! button.
Stability program and ABS fault! See own­
er's manual
If the J;.j indicator lamp and the llJ ABS indi­
cator lamp illuminate and the driver message
appears, the ABS or electronic differential lock
is malfunctioning. This also interrupts the
ESC. The brakes still function with their nor­
mal power, but ABS is not active .
Drive to your authorized Audi dealer immedi­
ately to have the malfunction corrected.
For more information about the ESC
¢page 219.
ii !.!r Safety systems
The I (USA models)/ . (Canada mode ls) in­
dicator light monitors the safety systems e.g.
a ir bags, pretensioners and illuminates for a
few seconds each time you switch the ignition
on .
If the
I (USA models)/ . (Canada models)
indicator light does not go out, or if it illumi­
nates while you are driv ing, or if it starts to
b link , then there is a malfunction somewhere
in the system. If the light does not illuminate
when you switch the ignition on, this also
means there is a malfunction.
A WARNING
If you have a ma lfunction in the safety sys­
tems, contact your authorized Audi dealer
imme diately. Otherwise the safety sys­
tems may not work properly in an acc i­
dent.
¢ Q Turn signals
The indicator light blinks when you use either
turn signal .
Whenever you use the left B or the right B
turn signal, the indicator light blinks. When
you use the emergency flashers, both indica­
tor lights flash.
If one of the turn signal light bulbs burn out,
the turn signal will blink twice as fast as nor­
mal.
This does not apply, however, in towing mode.
The indicator light does not flash if a turn sig­
nal is out on the trailer or the towing vehicle .
Additional information on the turn s ignals
¢ page 60 .
¢1¢ Trailer turn signal assembly
Applies to veh icles : w ith t owing h it c h
The indicator light also blinks if the turn sig ­
nal is operated when towing a trailer.
The indicator light . blinks when the turn
signal is used, if a trai ler has been proper ly
connected to the vehicle.
If one of the turn signal bulbs on the trailer is
burned out or defective, the indicator light
will not blink when you use the turn signals .
(D Tips
For vehicles with a factory installed towing
hitch or a trailer hitch that was installed
later according to factory spec ifications,
the trailer turn signal assembly is actuat­
ed.

18 Instrum ent s and w arn ing /indic ato r light s
because low -lying vehicle parts can bot ­
tom out as you drive over uneven ground
and be damaged as a res ult .
~ Safety belts
This warning/indicator light reminds you to
put on your safety b elt.
The . warn ing/ indicato r light illum inates
when the ignition is switched on to remind
the d river and (on USA models only) any front
passenger to put on the safety belt . Add ition­
ally, an acous tic warning (gong) will also
sound.
F or more Information
r=) page 170, Safety
belt warning light.
~D High beam
The ii warning/indicato r light illuminates
when the high beams are on or when you use
the head light flasher . For more informat ion
about using the h igh beams, seer=)
page 60.
(l) Tire pressure monitoring system -
telltale ind icator lamp
The warning/indicator light appears in the
event of a significant loss of tire pressure or if there is a malfunction .
The indicator light (I] ill um inates to check the
function w hen you switch on the ign ition.
If the
(I] symbol remains on or b links after
you switch on the ignition, there is a loss of
tire pressure or a system malfunction . If there
is a system malfunction , see your au thorized
Aud i dealer as soon as possib le.
Detailed info rmation on the tire pressure
monitoring system can be found in
r=) page292.
CRUISE /'(-) Cruise control
The lff;jl)~i~ (USA mode ls) ;II (Canada mode ls)
warning/indicato r light illuminates when the
cr uise contro l is activated .
ABS/(8) Anti -lock brake system (ABS)
T his warning/indicator light monitors the ABS
and the electronic differential lock (EDL) .
Them (USA models) ;ii] (Canada models)
warning/indica tor ligh t will come on for a few
seconds when the ignition is switched on . T he
l ight will go out after an automat ic check se­
quence is comp leted.
There is a malfunction in the ABS when:
-The warning/indicator light does not illum i­
nate when you switch on the ignition .
- The warning/indicator light does not go out
after a few seconds.
- T he wa rning/indicator light i llum inates
while driving.
The brake system will still respond e ven
without the ass istance of the ABS system.
See your authorized Audi deale r as soon as
possible to restore full braking perfo rmance.
For more information regard ing the ABS
<=> page 223.
The AB S warning light and the brake wa rn­
ing light come on together. The ABS will not
work and you will notice a change in braking
r es ponse and p erform ance.
Malfunction in the brake system
If the brake warning light r=) page 19 and
the ABS warning ill uminate
together there
may be a malfunction in the ABS, and there
may also be a malfunction in the brake system
i tself <=>
A.
In the event of a malfunction in the brake
system
the warning/indicator ligh t 1111
(USA models)/ . (Canada mode ls) in the in­
st rument cluster flashes . By press ing the
jCH ECKI button, you can b ring up a d river
message whi ch explains the malfunction in
more de tail. Please note
<=> page 32 .
Malfunction in the electronic differential
lock (EDL)
The EDL works toge ther w it h the ABS. The
ABS wa rning lig ht w ill come on if there is a
malfu nction in the EDL sys tem
<=> page 221 .

Intelligent technology Notice about data
recorded by vehicle
control modules
Your vehicle is not equipped with an Event Da­
ta Recorder (EDR), installed by some manu­
facturers for the express purpose of capturing
data for retrieval after an accident or crash
event. EDRs are sometimes called "crash re­
corders".
Some state laws restrict the retr ieval or down­
loading of data stored by EDRs that were in­
stalled in a vehicle for the express purpose of
retrieving data after an accident or crash
event without the owner's consent.
Although your vehicle is not equipped with an
EDR, it is equipped with a number of electron­
ic control modules for various vehicle systems
such as, for example, engine function, emis­
sion control, as well as for the airbags and
safety belts.
These electronic control modules also record
vehicle-related data during norma l vehicle op­
eration for diagnostic and repair purposes.
The recording capacity of the electronic con­
trol modules is limited to data (no sound is re­
corded) and only a small amount of data is ac­
tually recorded over a very limited period of
time and stored when a system fault or other
condition is sensed by a control unit. Some of
the data then stored may relate to vehicle
speed, direction, braking as we ll as restraint
system use and performance in the event of a
crash or other condition. Stored data can only be read and downloaded with special equip­
ment.
Intelligent technology 219
Electronic Stability
Control (ESC)
General information
The ESC improves the vehicle stability.
. ..---------..
------- -
Fig. 218 Center console with ESC sw itch
ESC is designed to help you maintain vehicle
control in situations where the car approaches
the limits of "grip", especially when accelerat­
ing and cornering. ESC reduces the risk of
skidding and improves stability under all road
condit ions .
The system operates across the entire speed range in combination with the ABS system. If
the Anti-Lock Brake System (ABS) malfunc­
tions, the ESC will also shut down.
How the system works
The Anti-Lock Brake System (ABS), Electronic
Differential Lock (EDL) and the Anti-Slip Regu­
lation System (ASR) are integrated in the Elec­
tronic Stability Control. In addition to the da­
ta provided by these functions, the ESC con­
trol unit requires additional measurement da­
ta provided by high performance sensors. The
rotational speed of the vehicle about its verti­
cal axis, vehicle acceleration in the fore-and­
aft and lateral directions, the brake pressure and the steering angle are all measured.
T he direction in wh ich the driver wishes to
travel is determined with the aid of the steer­
ing angle and vehicle speed and is continually
compared with the actua l behavior of the ve­
hicle. If the two do not match, for example,
when the vehicle starts hydroplaning on a wet
road, ESC will automatically brake the appro-
priate wheel to correct the problem. ..,_
•
•

Electronic differential lock (EDL)
The electronic differential lock monitors the
rotational speed of the drive wheels.
G ener al note s
The electronic differentia l lock (EDL) helps the
car to start mov ing, accelerate and climb a
gradient on surfaces providing poor or almost
no gr ip . W ithout EDL, this would be difficult,
if not impossible .
How the s yst em work s
The EDL operates automatically . It monitors
the rotat ional speed of wheels w ith the help
of the ABS sensors <=>
page 223. If a noticea­
ble
slip i s detected at the wheels (e.g . on slip­
pery ground
on one side), the spinning wheels
are braked and power is transferred to the
other wheels. This is done up to a speed of
about 60 mph (100 km/h). Noises from the b rake system signal that wheel spin is being
contro lled .
Driving off
When driv ing off , a lways be sure to keep road
conditions in mind as you accelerate . If one
drive whee l spins because it is on a surface
with less grip, apply
plenty of throttle until
the car starts to move.
Overheating of brakes
To prevent the disc brake of the b raked wheel
from ove rheating if subjected to excessive
l oads on this whee l, the EDL cuts out tempo ­
ra rily. The vehicle remains operational and be­
h aves in the same way as a vehicle without
EDL.
As soon as the brake has cooled down, EDL
switches on again automatically .
A WARNING
-When accelerating on slippery surfaces,
such as on ice or snow, always be careful
when depressing the acce lerator pedal.
Even with the EDL working, the drive
wheels can spin and reduce your ability
to control your car . R isk of crash!
Int ellig ent technolog y 221
-The increased safety afforded by EDL
does not mean that you can take safety
risks. Always adapt your driving style to
the road condit ions and traffic situation .
(!) Tips
If a fault occurs in the ABS, the EDL is also
not functioning. This is ind icated by the
ABS warning light <=>
page 18.
' Anti-Slip Regulation System (ASR)
The Anti-Slip Regulation System prevents the
driven wheels from spinning when the car is
accelerating.
G eneral not es
The Anti-Slip Regulation System (ASR) is inte­
grated in the Electronic Stability Control
(ESC). When the vehicle starts up and acceler­
ates, the wheels are prevented from spinning
by adjust ing the eng ine power to match the
amount of grip available from the road sur ­
face .
How the system works
ASR performs automatica lly, i.e. without the
driver 's intervention. With the aid of the ABS
sensors <=>
page 223, ASR monitors the speed
of the dr iven wheels. If the wheels start to
spin, engine torque is reduced automatically
unt il the t ires find enough grip to lock onto
the road surface. The system is active across
the enti re speed range.
The ASR works in conjunction with the ABS. If
a malfunction should occur in the ABS, the
ASR wi ll also be ou t of act ion.
A WARNING
The increased safety affo rded by ASR does
not mean that you can take sa fety risks.
A lways adapt your driving sty le to the road
conditions and traffic situation. ...,
•
•

@ Tips
- When the engine is running, never hold
the steer ing whee l turned a ll the way to
the right or t o the left f or longer than 15
seconds . The power steering pump w ill
overheat the hydraulic f lu id if you keep
hol ding the steer ing wheel turned all the
way . This is likely to damage the power
steering system .
- If the power steer ing system should fail
ent irely, or if the engine is not running
(fo r example , while being towed), you
will still be able to steer the vehicle .
However ,
considerably more effort will
be required to do so.
- If the power s teer ing system should
have a leak, or is not f unct ioning proper ­
l y, contact yo ur authorized Audi deale r
immediately.
- The power stee ring system requires a
spec ially formulated hydraulic fl uid. The
power steer ing reservo ir is the one locat­
ed farthest to the rear on the left side of
the engine compartment
c> page 260.
The co rrect flu id leve l in the reservoi r is
i mportant for p roper functioning of the
power steer ing .
Driving with your
quattro ®
With all-whe el drive , oil four whe els ore driv ­
en.
General information
W ith all -whee l dr ive , power is dis tr ibuted to
a ll fo ur wheels. This happens automatica lly
dep ending on yo ur driving sty le and the road
conditions at th e time . See a lso
¢ pag e 221,
Electronic differential lock ( EDL) .
Winter tires
When driv ing in the w inter , your ve hicl e w it h
all -wheel drive has an advan tage, even with
regu lar tir es. In wint er road conditions it may
be adv isable to mount wint er tires (o r all -sea­
son t ires) for improved driveability and b rak-
Int ellig ent technolog y 225
ing: t h ese tires must be mounted on all four
wheels. See also ¢
page 289, Winter tires .
Tire chains
Where tire chains a re ma ndatory o n cer tain
roads, this no rma lly also app lies to veh icles
with all-wheel drive¢
page 290, Snow
chains.
Replacing wheels/tires
Vehicles with all-wheel drive must always have ti res of t he same s ize. A lso avo id tires
with different t read dep ths. For det ails see
page
c!;> pag e 285, New tir es and replacing
tires and wheels .
_& WARNING
A lways adj ust yo ur driv ing to road and traf­
f ic conditions. Do not let the extra safety
afforded by all-wheel drive tempt you into
taking extra risks .
-Altho ugh the all-wheel drive is very ef ­
fective, always remember that braking
capacity is lim ited by tire traction. You
should therefore not drive at excessive
speeds on icy or slippe ry road surfaces .
- On wet road surfaces, be careful not to drive too fast because the front wheels
could begin to slide o n top of the water
(aquaplaning). If th is should occur, yo u
will have no w arning from a s udden in­
cre ase in engine speed as w ith a front ­
wheel drive veh icle. Always drive at
speeds which are su ited to the road con­
ditions -risk of crash.
Energy management
Starting ability is optimized
E nergy management controls the distribution
of electrical energy and thus optimizes the
availability of electrical energy for starting the engine.
If a vehicle with a conventiona l energy system
is not drive n for a long per iod of t im e, the bat­
te ry is discharged by idling cur rent consume rs
(e .g. immobi liz e r) . In cert ain circum stan ces it ..,_
•
•

328 Index .:..:..:..::....::.....:..._ ___________________________ _
Declaration of compliance
Adaptive cruise control ............. 322
Audi side assist ................... 322
Cell phone package ....... .. .. .... . 322
Convenience key .......... .... .... . 322
Electronic immobilizer ......... .. ... 322
H omelink ® universal remote control .. 322
Remote control key ........... .. .. . 322
def What does this mean when it appears in
the trip odometer display? ..... .. .. .. 12
Defective light bulb warning . . . . . . . . . . . 23
Defrosting/defogging the windows . . . . . . 94
Defrosting/defogging windows ... .... .. 96
Determining correct load limit ... .. .. . 282
Diesel fuel . . . . . . . . . . . . . . . . . . . . . . . . . 2 5 1
Diesel particu late filter . . . . . . . . . . 37, 229
Digital clock . .. . ........ .. .. .. .. .. .. 11
Digital compass ........... .. .. .. .. .. 69
Digital speedometer ............ .... .. 22
Dimensions .. ................ ... ... 315
Dimming the rearview mirror .. .. ...... 69
Dipstick Reading the dipstick properly ..... .. . 263
Distance control system
refer to Adaptive cruise contro l .. .. .. . 113
Doors Power child safety lock .... .. .. .... .. 48
Driver information system ............. 21
Digital speedometer .............. . . 22
Driver information messages . . . . . . . . . 30
Open door or rear lid warning . . . . . . . . . 22
Outside temperature display .. .. .. .... 22
Sound system display ......... .. .. .. 21
Driver seat
refer to Seating position ... .. .. .... . 161
Driver's seat . . . . . . . . . . . . . . . . . . . . . . . . 72
Driver 's seat memory . . . . . . . . . . . . . . . . . 73
Activating remote control key ... .. .... 74
Recalling a seat posit ion . . . . . . . . . . . . . 73
Storing a seat position ....... .. .... .. 73
Driving message s . . . . . . . . . . . . . . . . . . . . 30
Driving mode
refer to Adaptive Air Suspension . 150, 152 Driving
offroad
Driving through water ............ .. 233
Driving tips . ... .. ... .......... .. .. 232
Ru les of behavior . ............. .... 232
Sand and mud ... ............. .... 233
Snow -covered g round ............. . 233
Unpaved roads ... ... ... .... ..... .. 233
Driving safe ly ... .. ... .......... .. .. 160
Driving through water ........... .... 233
Driving time . . . . . . . . . . . . . . . . . . . . . . . . 24
Duplicate key ..... .. ........... .. .. . 38
Dust filter Climate controls ............... .. .. . 91
E
Easy entry feature .. ... ... .... ..... .. 104
Efficiency program .............. .. .. . 26
Fuel economy messages ........ .. .. . 27
Memory levels . . . . . . . . . . . . . . . . . . . . . 25
Other equ ipment . .......... ...... .. 27
E lectric seat adj ustment
refer to Power seat . . . . . . . . . . . . . . . . . 72
El ectronic differential lock ( EDL )
How the system works .......... .... 221
Warning/indicator lights ........ .. .. . 18
Electronic immob ilizer ... ........... .. 40
E lectronic power contro l
(EPC) warning/indicator light . . . . . . . . . 15
Electronic speed limiter .......... .. .. . 28
Electronic Stability Control (ESC)
Hill descent control ............... . 219
How the system works .......... .. .. 219
Offroad mode .. .. ............. .. .. 219
Warning/indicator lights ........ .. .. . 16
Emergency flasher ........... ...... .. 60
Warning/indicator lights ........... .. 16
Emergency lock ing of doors ......... .. . 45
Emergency operation Rear lid ... .... .. .. ........... .. .. . 48
Emergency starting ..... .. ... ..... .. 308
Emergency towing .............. .... 310
En ergy management .............. .. 225
Battery power ... .. ........... .. .. 227
Driver notification . . . . . . . . . . . . . . . . . 22 7