2010 AUDI Q7 wheel

........ _A_ ir_ b_ a-=g :..- s.:o.y _s _t _e_ m _______________________________________________ _
& WARNING (conti nued)
• Airbag work mo st effectivel y when us ed with p roperly worn
safety belts .
• Therefore, always wear your safety belts and make sure that
everybody in your veh icle is properly restrained .
& WARNING
A person on the front passenger seat , especially infants and small
c hildren, will receive seriou s injuries and can even be killed by
being too close to the a irbag when it inflates.
• Although the Advanced Airbag System in your vehicle is
designed to turn off the front passenger a irbag if an infant or a
small child is on the front passenger seat, nobody can absolutely
guarantee that deployment under these special conditions is
impossible in all conceivable situations that may happen during
the useful life of your vehicle.
• The Advanced Airbag System can deploy in a ccordance with the
" low risk" option under the U.S. Federal Standard if a child that is
hea vier than the t ypical one-year old child is on the front
passeng er seat and the other condition s for airbag deployment
are met.
• Accident statistics have shown that children are generally safer
in the rear seat area than in the front seating position .
• For their own safety, all children , especially 12 years and
younger, should always ride in the back properly res trained for
their age and size. •
Advanced front airbag system
Your vehicle is equipped with a front Advanced Airbag System in
compliance wit h Unit ed St ates Fe d er al Motor Vehi cle Safe ty Standar d
208 as applicab le at the time your vehicle was manufactured . The front Advanced A
irbag System supplements the safety belts to
prov ide ad ditional prote ct ion for th e d river's and front passenger's
heads and uppe r bodies in fro nta l crashes. The ai rbags i nflate only in
fronta l impacts when the vehicle dece leration is high enoug h.
Th e front Adva nced A irbag Sys tem for the fron t seat oc cupan ts is not
a s ubstitute for your safety be lts. Rathe r, it is part o f the overall occu­
p an t restr aint sy stem in y our ve hicl e. Always remembe r that the
airbag system ca n only help to protect you, if you are sitting upr ight,
we aring your sa fe ty be lt and we aring it prope rly. T his is why you and
your passengers must always be properly restra ined, not just because
t he law requires you to be.
Th e A dvan ced A irbag Syst em in your veh icle has been c ertified to
meet the "low r isk" req uir ements fo r 3 an d 6 year-old c hildren on the
pas senge r side and ve ry small ad ults o n the dr ive r side. T he low r is k
dep loyment cr iteria a re intended to help reduce the risk of injury
t hroug h in teraction wi th the front a irbag tha t can oc cur, fo r ex am ple,
by being too close to the steering wheel and instrument panel whe n
t he air bag i nflates .
In add it ion , the system has been cert ified to comply with t he
"supp ression" requirements of the Safety Standa rd, to t urn off the
front airbag for infants 12 mont hs old and young er w ho are
restrained on the front passenger seat in child restra ints that are
listed in the Standard=>
pag e 233, "Child restra ints and A dvan ced
Airbags".
"Su pp ression" req uires t he front a irbag on the passenger side to be
t ur ned off if:
• a child up to about one year of age is restra ined on the front
passenge r seat in one of t he rear-faci ng or forwa rd-facing infant
restraints listed in Federa l Motor Vehicle Safety Standard 208 w it h
w hich the Adv anced Airbag Sys tem in yo ur vehicle w as ce rt ified. Fo r a
list ing of the child restra ints that were used to certify your vehicle's
c omp li a nce with the US Safety Stand ard =>
page 233,
• weight less than a thresho ld level stored in the contro l unit is
detec ted on t he fro nt p assenger se at.

........ _A_ i_rb _ a_,g,:;._ s_, y'- s_ t_e _m ________________________________________________ _
& WARNING (conti nued)
the PASSENGER AIR BAG OFF light does not come on and stay on,
immediately ins tall the rear-facing child safety seat in a rear
seating position and have the airbag system inspected by your
authorized Audi dealer .
& WARNING
If, in exceptional circumstances, you must install a forward-facing
child restraint on the front passenger 's seat:
• Always make sure the forward-facing seat has been designed
and certified by its manufacturer for use on a front seat with a
passenger front and side airbag.
• Never put the forward-facing child restraint up against or very
near the instrument panel.
• Always move the passenger seat into its rearmost position in
the seat 's fore and aft adjustment range, as far away from the
airbag as possible, before installing the forward-facing child
restraint. The backrest must be adjusted to an upright position.
• Make sure that the PASSENGER AIR BAG OFF light come s on
and stays on all the time whenever the ignit ion is switched on .•
Advanced Airbag System components
T he front passenger seat in your veh icle has a lot of very important
parts o f the Advanced A irba g System in it. These parts incl ude t he
we igh t-sens ing ma t, sensors, wiring, brackets, and more. The func­
t ion o f th e sys tem in the fron t passenger sea t is chec ked by the elec ­
tron ic control unit w hen the ignit ion is on . The contro l u ni t mo nitors
the Advanced Airbag System and tu rns the airbag indicator light on
w hen a malfunct ion in t he system components is de tected. The func­
tion of the a irbag indicator light is descr ibed in greater detail below.
Be cau se the fr ont p assenge r se at con tain s im po rt an t p arts of th e
Advanced Airbag System, you m ust take care to prevent it from being damaged. Damage to the seat may prevent the Advanced A
irbag for
t he fro nt passenge r se at from do ing its job in a cr ash.
The front Advanced Airbag System consists of the
following:
• Cras h sensors in the front of t he veh icle that measure vehicle
a cc ele ra tion/de ce le ra tion to prov ide i nform ation to the Adv ance d
Airbag System about the severity of the crash .
• An e lec tron ic contro l uni t, w it h in tegr ate d cr ash sensor s fo r fron t
and side impacts. T he control unit "dec ides" w het her to fire the front
a irbags based on the info rm at ion rece ive d fr om t he c rash se nso rs.
The contro l unit also "decides" whether the safety be lt prete nsione rs
shoul d be activa ted .
• An Advanced Airbag with gas generator for the driver inside the
s t eeri ng wheel hub.
• An Advanced Airbag with gas generator inside the inst rument
p an el f or the front p assenge r.
• A weight-sensin g mat under the upho lstery padd ing of the front
passe nge r seat c ushion t hat measu res the tota l we ight on the sea t.
T he informat io n registered is sent cont inuously to the elect ronic
con trol uni t to reg ula te deploymen t of t he fr ont Adv anced A irbag o n
the passenger side.
• An airbag mo nitoring syste m and indi cator light in the inst ru m ent
cl uster ~
page 220.
• Th e PASSENGER AIR BAG OFF light com es on an d stays on in t he
center of the instr ument pane l=>
page 221, fig . 201 a nd tells you
w hen the fron t Advan ced A irbag on t he passe nger side has been
turned off.
• A senso r below t he saf ety belt la tc h for the front s eat p ass enge r
to meas ure the tens ion on the safety be lt . The tension on the safety
be lt a nd the we igh t regis tere d by the weig ht-sensing mat help t he
cont rol un it "dec ide" w hethe r th e front airbag fo r th e front
p assenge r seat should be turned o ff or not~
page 2 11, "Ch ild
restraints on the front seat -some important th ings to know" . ._

Airbag system --------------------------------------------- -=---=----
lower parts of the body . Front a irbags s upplement the t hree-poi nt
sa fety belts o nly in some fro ntal collis ions in which the vehicle decel­
eration is high enough to dep loy the a irbags .
Front airbags will not deploy:
• if the ignition is switched off when a crash occ urs
• in s ide collis ions
• in rea r-end collisions
• in rollovers
• when the crash decelerat io n me asured by the a irbag system is less
than the min imum threshold needed for a irbag deployment as reg is­
tered by the e lectron ic con trol un it
The front passenger airbag also will not deploy:
• when t he fron t passenger sea t is no t oc cupied
• when the weight on the front passenger seat as sensed by the
Advanced Ai rbag System in dicates that the front airbag o n the
passenger side has to be turned off by the e lectronic control unit (the
PASSENGER AIR BAG OFF li ght comes on and stays on)
& WARNING
Sitting in the wrong position can increase the ri sk of ser iou s injury
in crashes.
• To redu ce the risk of injury when the airbags inflate, the driver
and pas sengers mu st always sit in an upright position , mu st not
lean against or place any part of th eir body too close to the area
where the airbags are lo cated.
• Occupants who are unbelted, out of position or too close to the
airbag can be seriou sly injured by an airbag a s it unfolds with
great force in th e blink of an eye =>
page 211 .
Controls and equip­
ment Safety first Vehicle operation
& WARNING
A child in a rearward-facing child
safety se at installed on the front
pas senger seat will be seriously injured and can be killed if the
front airbag inflates - ev en with an Ad vanced Airbag System.
• The inflating airbag will hit the child safety seat or infant
c arrier with great force and will smash the child safety s eat and
c hild against the backre st, center armre st, d oor or roof .
• Always install rear -facing child safet y seats on the rear seat.
• If you must install a rearward-facing child safety seat on the
front passenger se at because of e xceptional circumstances and
the PASSENGER AIR BAG OFF light do es not come on and stay on ,
immediately install the rear -facing child s afety seat in a rear
s eating po sition and h ave the airbag system inspe cted by your
authoriz ed Audi d ealer.
& WARNING
Object s between you and the airbag will increase the r isk of inju ry
in a cra sh by int erfering with the way the airb ag unfold s or by
being pushed into you as the airbag inflates.
• Never hold things in your hand s or on your lap when the vehicle
i s in use.
• Never tran sport items on o r in the are a of the fr ont pa ssenger
seat. Obje ct s c ould move into the area of the front ai rbag s during
braking or other sudden maneu ver s and become dang erous
projectiles that can c au se se rious per sonal injury if the ai rbags
infl ate.
• Never pla ce o r attach accessories or othe r objects (such a s
cupholders, telephone brac kets, large , heavy or bulky object s) on
the doo rs, over o r near the are a marked
"AIRBAG " on the stee ring
wheel, in strum ent panel , se at ba ckre sts or between th ose area s
and yourself . These objects could cause injur y in a crash , especially
when the airbags infl ate .
9"'
Vehicle care Do-it-yourself service Technical data

Airbag system -----------------=--=---
& WARNING (co ntinued )
• Always install forward or rear-facing child safety seats on the
rear seat - even with an Advanced Airbag System .
• If you must install a rearward-facing child safety seat on the
front passenger seat because of exceptional circum stances and
the PASSENGER AIR BAG OFF light does not appear and stay on ,
immediately install the rear-facing child safety seat in a rear
seating pos ition and have the airbag system inspected by your
authorized Audi dealer.
• A tight tether or other strap on a rearward-facing child
restraint attached to the front passenger seat can put too much
pressure on the weight-sensing mat in the seat and register more
weight than is actually on the seat. The heavier weight registered can make the system work as though an adult were on the seat
and deploy the Advan ced Airbag when it must be suppres sed
caus ing serious or e ven fatal injury to the child.
• If, in exceptional circumstances, you must install a forward ­
facing child restraint on the front passenger seat, always move
the seat into its rearmost position in the seat' s fore and aft adju st­
ment range , as far away from the airbag as possible . The backrest
must be adjusted to an upright position. Make sure that the PASSENGER AIR BAG OFF light comes on and stays on all the time
whenever the ignition is switched on.
& WARNING
• If the PASSENGER AIR BAG OFF light doe s not go out when an
adult is sitting on the front passenger seat after taking the steps
described above, make sure the adult is properly seated and
restrained at one of the rear seating posit ions.
• Have the airbag system inspected by your authorized Audi
dealer before transporting anyone on the front passenger seat.
Controls and equip­ ment Safety first Vehicle operation
(I] Tips
If the we
ight-se nsin g mat in the fro nt passenge r seat detec ts a n
empty seat , the front airbag on the passenger s ide will be t urned off,
a nd the PASSENGER AIR BAG OFF light will sta y on .
a
Repair, care and disposal of the airbags
Parts of the ai rbag syste m are inst alled a t many diffe re nt pla ces on
your Audi. Installing, removing, serv ic ing o r repairing a part in a n
area of t he vehicle c an damage a par t of an a irbag sys tem and preve nt
that system from working proper ly in a coll is ion.
Th ere are some importa nt things you have to know to ma ke sure t hat
t he effectiv eness of the system will not be impai red and that
discarde d components do not cause injury or pollute t he env iron ­
m en t.
& WARNING
Improper care , servicing and repair procedures can increase the
risk of personal injury and death by preventing an airbag from
deploying when needed or deploying an airbag unexpectedly:
• Never cover, obstru ct, or change the steering wheel horn pad or
a irbag cover or the instrument panel or modify them in any way .
• Never atta ch any objects such as cupholders or telephone
mountings to the surfaces covering the airbag units .
• For cleaning the horn pad or instrument panel, use only a soft,
dry cloth or one moistened with plain wate r. Solvents or cleaners
c ould damage the airbag cover or change the stiffne ss or strength
of the mater ial so that the airbag cannot deploy and protect prop­
erly.
• Never repair, adjust , or change any parts of the airbag system .
• All work on the steering wheel, instrument panel, front seats
or electrical system (including the installation of audio equip -
~
Vehicle care Do-it-yourself service Technical data

lffll.,___C_h_ i_ ld _ S_ a_ f_ e_ t_:!, y :...._ _________________________________________ _
& WARNING (conti nued)
• Always install rear-facing child safet y seat s on the rear seat.
• If you must install a rearward facing child safety seat on the
front passenger seat in exceptional circumstances and the
PASSENGER AIR BAG
OFF light do es not come on and stay on,
immediately in stall the rear-facing child safety seat in a rea r
seating position and have the airbag system inspected immedi­
ately by you r Audi deale r.
& WARNING
If, in exceptional circumstances , you must in stall a forward-facing
child restraint on the front passenger' s seat:
• Always make sure the forward-facing seat has been designed
and certified by its manufacturer for use on a front seat with a
pas senger front and side airbag.
• Always follow the manufacturer 's instructions p rovided with
the child safety seat or carrier.
• Always move the passenger seat into its rearmost position
in
the seat's fore and aft adjustment range, as far away from the
airbag as possible before install ing the child restra int . The back­
re st must be adju sted to an upright position .
• Always make sure that the PASSENGER AIR BAG OFF light
c omes on and stays on all the time whenever the ignition is
switched on .•
Advanced front airbag system and children
Your vehicle is equipped with an "Advanced Airbag System" in compli­
ance wi th Uni ted St ates Federa l Mo to r Vehicle Safety St andar d
(FMVSS) 208 as applicable at the time your veh icle was manufac­
tu red . The Advanced A
irbag system in yo ur vehicle has been certif ied to
mee t the "low -r is k" requiremen ts fo r 3-and 6-ye ar old ch ildre n on
t he passenger side and small adults on the dr iver side . The low risk
dep loyment criteria are inten ded to reduce the risk of injury through
interaction with the a irbag t hat can occur, for example, by being too
close to the stee ring wheel an d instr ument panel when the airbag
inflates. In addi tion, the sy stem has been certified to comp ly with t he
"suppression" requirements of the Safety Standa rd, to t urn off the
fron t air bag for infan ts u p to 1 2 months who a re res tra ined on the
front passenger seat in child restrai nts that are listed in the Stan­
d ar d.
Even thoug h your vehicle is equipped with an Advanced Airbag
system , a ll ch ildren, especially those 12 years and yo unger, should
always r ide in t he back seat p roperly restrained for t heir ag e and si ze .
Th e ai rbag on the passenge r si de makes the front seat a potentia lly
dange rous p lace for a child to r ide. Th e front seat is not th e safest
place fo r a child in a forward- facing c hild safety seat. It can be a very
d an ge rous p lace for a n infan t or a large r chil d i n a re arwa rd-facing
seat. •
Advanced Airbags and the weight-sensing
mat in the front seat
Th e Advanced A irbag System i n your ve hicle de tects t he p resence o f
an infa nt o r ch ild in a child rest rai nt on the fro nt passenger sea t using
the we ight-sens ing mat in the seat cushion and the senso r be low the
saf ety belt la tch o n th e front passenge r seat tha t measur es t he
tension on the safety belt.
Th e weigh t-sens ing ma t me asures tot al we ight of the child and the
child safety seat and a child blanket on the fro nt passe nger seat . The
we ight on the fro nt passenger se at is re late d t o the desi gn of the
child res traint and i ts "footpri nt", the size and shape of t he bottom
of the ch ild restraint as it sits o n the seat . The weight of a child
restrain t an d its "foo tpr int" vary for differe nt kinds of child res tra ints .,_

_________________________________________ I_ n_ t_ e_ ll_,igent technology ,__E~-
fore-and-aft and lateral directions, the brake pressure and the
steering angle are all measured.
The direction in which the driver wishes to travel is determined with
the aid of the steering angle and vehicle speed and is continually
compared with the actual behavior of the vehicle. If the two do not
match, for example, when the vehicle starts hydroplaning on a wet
road, ESP will automatically brake the appropriate whee l to correct
the problem.
The vehicle is then stabi lized by the forces acting on the whee l during
braking. If the vehicle is
oversteering (rear tends to skid out of the
turn), the brakes are main ly applied on the wheel that is on the
outs ide of the curve. In the case of a vehicle that is
understeering
(tendency to slide out of the curve), the brakes are applied as needed
on the wheel that is on the inside of the curve or additionally on the
other wheels. An acoustic s ignal indicates when ESP brake application
cuts in=> &.
The system operates across the entire speed range in combination
with the ABS system ~
page 256 . If the Anti -Lock Brake System
(ABS) ma lfunctions, the ESP wi ll be out of action as well.
Activating
When you turn on the engine, ESP will automatically be activated and
will perform a self-test. As soon as the test is comp leted, the system
is in normal operating mode .
Offroad mode
ESP should normally be operated in normal mode because this
ensures maximum vehicle stability. If necessary, you can activate the
ESP offroad mode by pressing the button=>
page 252, fig. 220 to
obtain maximum traction and braking ability when driving off paved
roads at low speeds. In ESP offroad mode, the ESP indicator light
=> page 16 illuminates and the message ESP Offroad Caution!
Limited driving stability
appears briefly in the disp lay.
The ESP offroad mode can be useful in the following exceptiona l situ­
ations when slip or a highly effe ctive different ial loc king funct ion is
desirable. Examples:
Controls and equip­ ment Safety first Vehicle operation
•
when driving w ith tire chains,
• when driving in deep snow or on loose ground,
• when driving on uneven surfaces with the wheels severely
unloaded (articulation), and
• when rocking the vehicle loose a fter it has become stuck.
When the unusual situation is past, you should sh ift back to the
normal ESP operating mode by pushing the button again. The
message
ESP/ ASR on then appears briefly in the display.
Hill descent control
The hill descent control is switched on in ESP offroad mode. When
slowly descending steep gradients on loose ground or when the axles
are art iculated, hill descent control provides assistance by automati­
cally applying the brakes to keep vehicle speed constant. The vehicle
is also rende red easier to steer by select ive distribution of braking
force. Hill descent control intervenes when:
• the accelerator pedal is not pressed,
• the vehicle is travelling less than 12 mph (20 km/h),
• a steep gradient is detected,
• wheel behavior indicates loose ground or conditions with poor
adhesion (e.g. also axle articulat ion).
Hill descent control operates both dr iving forward and in reverse.
Active hi ll descent control is deactivated by pressing the accelerator
pedal until the conditions for activation already listed are met aga in .
& WARNING
• The Electronic Stabilization Program is nevertheless subject to
the laws of physics . It is particularly important to pay attention to
this fact on wet and slippery roads. It is therefore important that
you always adapt your driving to the condition of the road and
traffic conditions. Do not allow the increased safety provided by
the Electronic Stabilization Program system to lull you into
accepting additional safety risks. ..
Vehicle care Do-it-yourself service Technical data

Intelligent technology
'-----------------------------------------------
& WA RNING (conti nu ed )
• Plea se be aware th at in ESP offroad mode , particularly on a
s mooth and slippery road, the wheels may have an incr eased
tendency to spin and the vehicle may break awa y -danger of skid ­
ding!
• Stabilit y is limited in the ESP offroad mode. •
Electronic differential lock (EDL)
The electronic differential lock monitors the rotational
speed of the drive wheels.
General notes
The electronic differe ntia l lock (EDL) helps the ca r to sta rt moving,
acce lerate and climb a gradient on surfaces provi ding poor or almost
no grip. W ithout ED L, th is would be d iff ic ul t, if not impossible .
How the system works
The EDL operates automatically . It mo nitors the rotational speed of
w heels wi th the help of the ABS sensors ==>
page 256 . If a not iceab le
slip is detected at the wheels (e .g . o n slippery g round on one side),
the spin ning whee ls 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 brake system signa l that wheel spin is being
cont rolled.
Driv ing off
W hen d rivi ng off, always be sure to keep road conditions in mind as
you acce lerate. If one drive wheel spins because it is on a surface with
less grip, apply
plenty of th rottle until t he car starts to move .
Overheating of brakes
To prevent the disc b rake of the bra ked wheel from overhea ting if
subjected to excessive loads on this whee l, t he EDL cuts out tempo ­
ra rily. The vehicle rema ins operat iona l and behaves in the same way
as a veh icle without EDL. As soon as the brake has coo
led down, EDL sw itches on again auto­
m atically.
& WARNING
• When accelerating on slippery surfaces, such as on ice or snow,
always be careful when depressing the accele rator pedal. Even
with the EDL working , the drive wheels c an spin and reduce your
ability to control your car . Risk of crash!
• The increased safety afforded by EDL does not mean that you
can take safety risks . Always adapt your d riv ing style to the road
c ondition s and traffic situation.
[ i ] Tips
If a fa ult occurs in the A BS, the ED L is also no t fu nct io ni ng. This is
ind icated by the ABS warn ing light==>
page 19. •
Anti-Slip Regulation System (ASR)
The Anti- S lip Re gula tion System preven ts the drive n
w heels from spinning when the car is acc ele rating .
General notes
The Anti-S lip Reg ulation Sys tem (ASR) is in tegr ated in the ele ctroni c
stabilization program (ESP) . When the ve hicle starts up and acceler­
a tes, the whee ls are p reven ted from sp inning by adjust ing t he engine
power to match the amoun t of grip ava ilable from the road surface.
How the system works
ASR performs automatica lly, i.e. witho ut the driver 's intervent ion.
With the aid o f th e ABS sensors ==>
page 256, ASR moni to rs the speed
of the driven wheels. If the whee ls start to spin, engine torque is
reduced automatically unt il the tires find enough grip to lock onto
the road s urface. The system is active ac ross the en tire speed range .
'1>

Intelligent technology
--------------------------------------------------' '----'----
The ASR works in conjunction with the ABS. If a malfunction should
occur in the ABS, the ASR w ill also be out of action.
& WARNING
The increased safety afforded by ASR does not mean that you can
take safety risks. Always adapt your driving style to the road
conditions and traffic situation.
[ i] Tips
To ensure that the ASR works properly, all four whee ls must be fitted
with ident ical tires. Any differences in rolling radius of the tires can
cause the system to reduce engine power when th is is not desired.
See also=>
page 326, "New tires and replacing tires and whee ls" .•
Braking
General information
What affects braking efficiency?
Operating conditions and driving habits
The brakes on today's automobiles are still subject to wear,
depending large ly on operating conditions and driving habits=>& .
On vehicles that are either driven mostly in stop -and -go city traffic or
are driven hard, the brake pads should be checked by your authorized
Audi dealer more often than specified in the
Warranty & Mainte­
nance booklet.
Failure to have your brake pads inspected can result
in reduced brake pe rformance .
On steep slopes, you should use the brak ing effect of the engine . This
way, you prevent unnecessary wear on the brake system. If you must
use your brakes, do not hold the brakes down continuously. Pump the
brakes at intervals.
Noises may occur when braking depending on the speed , braking
force and outside conditions such as temperature and humidity.
Safety first
Moisture or road salt
If you are driving faster than 31 mph (SO km/h) and the windshield
wipers are on, the brake pads wi ll briefly touch the brake discs in
regular interva ls so as to improve reaction time when braking on wet
surfaces . You, the driver, will not not ice anything.
Under certain cond itions, for example, when driving through wa ter or
very heavy rain, or even after washing yo ur vehicle , the braking effect
can be reduced due to moisture (or in free zing conditions ice) on the
brake pads. A few careful brake applications should dry off the brake
pads or remove any ice coatings .
The effect iveness of the brakes can be reduced when the vehicle is
dr iven on a sa lt-covered road and the brakes are not used. Here too,
you should clean off accumu lated salt coating from brake discs and
pads with a few careful applications of the brake=> & -
Corrosion
There may be a tendency for dirt to build up o n the brake pads and
corrosion to form on the dis cs if the car is no t driven regularly or only
for short trips with little use of the brakes.
If the brakes are not used frequently, or if corrosion has formed on
the discs, it is advisable to clean off the pads and discs by braking
firmly a few times from a moderately high speed=> &.
Faults in the brake system
If you should notice a sudden increase in brake pedal travel, then one
o f the two brake circuits may have failed==>& .
Low brake fluid level
Malfunctions can occur in the brake system if the brake fluid level is
too low. The brake fluid level is monitored e lectron ically .
Brake lining wear status
Brake lining wear may be checked by visual inspection of the condi­
tion of the brake pads through the openings in the wheel. If neces­
sary, the wheel may be removed for this inspection =>
page 339,
"Changing a wheel". ._.
Vehicle care Technical data