wiring AUDI Q7 2012 Owner´s Manual

186 Airbag sys tem
-Always make sure the forward-facing
seat has been des igned and certified by
its manufacturer for use on a front seat
with a passenger front and side airbag .
- Never put the forward-facing child re­
straint up aga inst or very near the instru­
ment panel.
- Always move the passenger seat into its
rearmost position in the seat's fore and
aft adjustment range, as far away from
the a irbag as poss ible, before insta lli ng
the fo rward-facing chi ld restraint. The
b ackres t must be adjus ted to an upr igh t
posit io n.
- Make su re that the
PASSENGER AIR BAG
OFF
light co m es on and s tays on all the
t ime whenever the ignition is switched
on.
Advanced Airbag System components
The front passenger seat in your vehicle has a lot of very important parts of the Advanced
Airbag System in it. These parts include the
weight-sens ing mat, sensors, wiring, brack­
ets, and more . The fu nction of the system in
the front passenger seat is checked by the
e lectronic control u nit when the ignit ion is on.
The control unit mo nitors the Advanced Air­
bag Sys tem and turns the airbag indicator
light on when a ma lfunction in the system
components is detected . The function of the
ai rbag ind icator light is described in greater
detai l below. Because the front passenger
seat contains important parts of the Ad­
vanced A irbag System, you must take care to
prevent it from be ing damaged . Damage to
the seat may prevent the Advanced A irbag for
the front passenger seat from doing its job in
a cra sh .
The front Advanced Airbag System
consists of the following:
- Crash senso rs in the front of the veh icle that
measu re ve hicle ac celera tion/de ce le ra ti on
to provide info rm ation to the Advanced Air­
bag System abo ut the severity of the crash . -
An elect ronic contro l unit, with integrated
crash sensors for front and side impacts .
The control un it "decides" whether to fi re
the front a irbags based on the informat ion
received from the crash sensors. The contro l
un it also "decides" whether the safety belt
prete nsioners shou ld be act ivated .
- An Advanced A irbag w ith gas generator for
the dr iver inside the stee ring wheel hub .
- An Advanced A irbag w ith gas generator in­
side the instrument panel for the front pas­
senge r.
- A we ight-sensing mat under the up ho lstery
padding of the front passenger seat cushion
that measures the total weight on the seat .
The informat io n registe red is sent continu­
ou sly to the elec troni c con tro l unit to regu ­
la te deployment of the front Advanced Air­
bag on the passenger side .
- An airbag monitoring sys tem and in dicator
light in t he instr ument cluster
~ page 190.
-The PASSENGER AIR BAG OFF ligh t comes
on and sta ys on in the cen ter o f th e instr u­
ment panel
~ page 190, fig . 199 and tells
you whe n the front Advanced Airbag on the
passenger side has been tu rned off .
- A sensor below the safety be lt latch for the
front seat passenger to meas ure the tension
on the safety be lt . The tension on the safety
be lt and the weight registered by the
weight-sensing mat he lp the control unit
"decide" whether the front airbag for the
front passenger seat should be turned off or
not
~ pag e 181, Child restraints on th e
front seat -some important things to
know.
- A senso r in the safety belt latch fo r th e d riv­
er a nd fo r the front sea t passenger tha t
senses w het he r th at safety bel t is latched or
no t and transmi ts this information to the
electronic control unit.
A WARNING
Damage to the fr ont passenger seat can
p revent the front airbag from work ing
properly.
-

190 Airbag sys tem
aw ay by getting out of the vehicle or
opening windows or doors.
- If you are in a collision in which airbags
dep loy, wash your hands and face w ith
mild soap and water before eating.
- Be careful not to get the dust into yo ur
eyes, or into any cuts or scratches.
- If the residue should get into your eyes,
flush them with water.
Monitoring the
Advanced Airbag
System
Airbag monitoring indicator light
Two separate indicators monitor the function
of the Advanced Airbag System: the airbag
monitoring indicator Light and the
PASSEN ­
GER AIR BAG OFF
light.
The Advanced Airbag System (includ ing the
e lectronic control un it, sensor circuits and sys­
tem wiring) is monitored cont inuo usly to
make sure that it is functioning properly
wheneve r the ignit io n is on . Each t ime you
turn on the ignition, the airbag monitoring in­
d icator light
I will come on for a few seconds
(self diagno stics) .
The system must be inspected when the
indicator light
I :
- does not come on when t he ignit io n is
swi tched on
- does not go out a few seconds afte r you
have swi tched on the ign ition, o r
- comes on w hile d riving
If an airbag system malfunct ion is detected,
the ind icator light will fi rst start flash ing to
catch the driver's attention and then stay on
continuously to se rve as a constant reminder
to have the system inspected immediately .
If a malfunction occurs that turns the front
a ir bag on the passenger side off, the
PASSEN­
GER AIR BAG OFF
li ght w ill come on and stay
on whenever the ign ition is on.
A WARNING
An a irbag system that is not functioning
p roperly cannot provide supplemental pro­
tection in a frontal c rash.
- If the airbag ind icator light comes on, it
means that there may be something
w rong with t he Advanced Airbag Sys tem.
It is poss ible that t he a irbag w ill inflate
when it is not supposed to, o r will not in­
fla te w hen it sho uld.
- H ave the airbag system inspected imme­
d iate ly by yo ur a uthorize d Aud i dea le r.
PASSENGER AIR BAG OFF light
Fi g. 199 Sec tion fro m the instr um ent pa nel: PASSEN­
G ER AIR BAG O FF ligh t
-
The PASSENGER AIR BAG OFF light is loca ted
in the center of the inst rument pane l
~fig. 199.
The PASSENGER AIR BAG OFF light wi ll come
o n a nd stay on to tell you w hen the front Ad­
vanced Airbag on the passenge r side has been
turned off by the electronic contro l unit. Each
t ime yo u turn on t he ignition, the
PASSEN­
GER AIR BAG OFF
light will flash for a few
seconds and:
- wi ll stay on if the front passenge r seat is not
occ upied
- wi ll stay on if t here is a small chi ld or child
restraint on the front passenger seat
- will go out i f the front passenger seat is oc­
cupie d by an adult as registered by the
weight-sensing mat
T he
PASSENGER AIR BAG OFF light mu st
come on and stay on
if the igni tion is on and ..,.

Trailer towing Driving with a trailer
General information
Your Audi was designed primarily for passen­
ger transportation .
If you plan to tow a trailer, p lease remember
that the additional load will affect durability,
economy and performance .
Trailer towing not on ly places more stress on
the vehicle, it also calls for more concentra­
tion from the driver.
F or this reason, always fo llow the operating
and driving instructions provided and use
common sense.
(D Note
If you are going to tow a trai ler, you must
activate the trailer operation mode
q page 154, Towing a trailer.
Technical requirements
Traile r hitch
Use a weight-carrying hitch conforming to the
gross trailer weight. The hitch must be suita­ ble for your vehicle and trailer and must be
mounted securely on the vehicle's chassis at a
technically sound location. Use only a trailer
hitch with a removable ball mount. A lways
check with the trai ler hitch manufacturer to
make sure that you are using the correct
hitch.
Do not use a bumper hitch.
The hitch must be installed in such a way that
it does not interfere with the impact-absorb­
i ng bumper system. No mod ifications should
be made to the vehicle exhaust and brake sys­
tems . From time to time, check that all hitch
mounting bo lts remain securely fastened.
When you are not towing a trailer, remove the
trai ler hitch ball mount. This prevents the
hitch from causing damage should your veh i­
cle be struck from behind~.&.
Trailer towing 235
Trailer brakes
If your trailer is equipped with a brak ing sys­
tem, check to be sure that it conforms to all
regulations.
T he trailer hydraulic bra ke system must not be
directly connected to the vehicle's hydraulic
brake system
q .& .
Safety chains
Always use safety chains between your veh icle
and the trai le r.
Trailer lights
Trailer lights must meet all regulations. Be
sure to check with your authorized Audi dealer
for correct wiring, sw itches, and relays.
M irr ors
If you are unable to see the traffic behind you
using the regular outside mirrors, then you
must install extended mirrors.
It is important
that you always have clear v is ion to the rear.
_&. WARNING
- If a trailer has electrical brakes please
note that these brakes are not activated
by the factory-fitted control unit -risk of
accident!
- After removing the trailer hitch, do not
store it in you r vehicle. In case of sudden
brak ing, the hitch could fly forward and
injure you or your passengers.
- The Gross Vehicle Weight Rating for your
Audi Q7 vehicle, found on the safety
compliance labe l on the driver's side 8 -
pillar, must never be exceeded under any
circumstances. Exceeding the Gross Vehi­
cle Weight Rating of your vehicle is likely
to damage your veh icle, and such dam­
age will not be covered by your Limited New Vehicle Warranty. Exceeding the
Gross Vehicle Weight Rat ing will a lso
change the performance and handling
characteristics of your vehicle, which
could cause a crash resulting in serious
injury or death.
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