2010 AUDI Q7 brake pads

Instruments and warning/indicator lights
Malfunction in the electronic differential lock (EDL)
The ED L works toge ther w ith the ABS. The ABS warn ing lig ht w ill
come on if there is a mal func tion in the EDL system=>
page 254 . See
your authorized A udi dea le r as soon as poss ible .
& WARNING
• If the .. (USA models )/ ...,. (Canada models ) wa rning light
does not go out , or if it comes on while driving, the ABS system is
not working properly. The vehicle can then be stopped only with
the standard brakes (without ABS ). You will not have the p rotec­
tion ABS provides. Contact your authorized Audi dealer a s soon as
pos sible.
• USA models : If the BRAKE warning light and the M, warning
light come on together, the rear wheels could lock up fir st under
hard braking. Rea r wheel lock-up can cause loss of vehicle cont rol
and an accident . Have your vehicle repaired immediately by your
autho rized Audi dealer or a qualified work shop. Dri ve slowly and
avoid sudden, hard brake applications.
• Canada models: If the brake warning light 0 and the ABS
warning light come on together, the rear wheels could lock up
first under hard braking. Rear wheel lock -up can cause loss of
vehicle control and an accident . Have your vehicle repaired imme­
diately by you r authorized Audi dealer or a qualified wo rkshop.
Drive slowly and avoid sudden , hard brake applications .•
Parking brake
~[ (USA models)/ (®) (Canada models)
The indicator light monitors the p arking br ake.
W hen the parking br ake is app lied a nd the ignition is switched on, the
indicator light comes on©. The ind icator light must go out when the
par king b rake is released. •
Brake system BRAKE (USA
models)
/ ((D) (Canada models)
The warning/i ndica tor light flashes if b ra ke fluid le vel is
low, if there is an ABS system malfunction or a parking
brake malfunction.
Th e ligh t ill umin ates whe n the igni tio n is tur ned on. It goes out afte r
the engine has been started . This indicates that t he brake war ning
ligh t is functioni ng p roper ly .
If the brake warning light does not light up when the engine is
cranking , there may be a malfun ct ion in the electrical system. In
thi s ca se, contact your Audi dealer.
If the brake system warning/indicator light flashes , there is a brake
system mal function. By press ing the
I C H ECK ] button, yo u can bring
up a driver message which exp lains the malfunction in more detail
=>
page 29.
If th e ABS fa ils, t he ABS war ning/ indi cato r light
O (USA
mode ls)/ (Canada mode ls) flashes together with t he b rake system
wa rni ng/ind icator light=> & .
(USA models): If the warning light
BRA KE and the warning light illu­
minate together, immedia tely contac t your author ized Audi dealer or
qualified workshop to have all brake pads inspected =>
page 34.
When the light comes on, an a udible warn ing signal is also given.
& WARNING
• USA models : If the BRAKE warning light and the I .. S warning
light come on together, the rear wheels could lock up first under
hard braking . Rear wheel lock-up can cause lo ss of vehicle control
and an accident . Have your vehicle repa ired immediately by your
authorized Audi dealer or a qualified workshop. Drive slowly and
avoid sudd en, hard brake application s.
• Canada model s: If the b rake warning light CCI» and the ABS
warning light come on together, the rear wheels could lock up
~

Driver information displ ay
If there is a malfunction in the electronic ignition lock, the ign ition
cannot be turned off. Drive immediately to an authorized Aud i dealer
to have the cause of the malfunction corrected.
On vehicles with Convenience key*, the engine should not be switched
off using the
I STOP] button because the eng ine can not be started
again after the ignition is switched off. •
Yellow symbols
Ayellow symbol means WARNING.
Fig. 18 Display: low
f ue l leve l warn ing
(pr iority 2)
Yellow symbols indicate a priority 2 malfunction - Warning!
When a ye llow warning symbol appears,
one warning tone sounds. A
dr iver message appears as well to explain the ma lfunction in more
detail. The driver warning goes out after about 5 seconds, but it can
be brought up again at any time by pressing the
I CHECK] button .
Check the displayed function as soon as possible. If
more than one
priority 2 malfunction is detected, all symbo ls will appear one after
the other for about 2 seconds.
Yellow symbols mean: Convenience key*
=>page
129
Key not in vehicle
USA models : =>page24
Defective brake light
Can ada mod els: => page24
Defect ive b rake light
Defective light bulb
=>poge24
Light/rain sensor defective* =>page33
Windshield washer fluid =>page33
level low
L ow fue l level
=>page33
Refill Ad Blue* =>page292
Battery voltage =>page33
Worn brake pads =>page34
Dynamic headlight range = page34
contro l defective
II Check engine oil level
=>poge34
-
Engine o il sensor malfunction =>page 34
II Engine speed limitation* =page34
-
Diesel part icu late filter* =>page35
clogged
-Adaptive Light* defective => poge35 ..

Driver information display
Driver message appears and goes out again
If this dr iver message appears af ter the ignition is t urned on or w hile
dr iving and it goes out aga in afte r a while , the battery has been
adeq uate ly recharged.
Driver message appears and does not go out again
If t his dr iver no tifica tion appears after the ignition is turned on or
w hile dr iv in g and does not go out again , the battery's state of charge
is not in t he optima l range. Starting ca pability is restricte d. Have the
ba ttery checked by a n author ized A udi deale r as soon as possible .•
Worn brake pads U
J Brake pads !
If the warn ing light illum inates, immediate ly contact your a uthorized
Aud i dealer or qualified workshop to have all b rake pads inspe cted.
On USA mode ls the warn ing light
.:l comes on together w ith the
w ar ning light
BRAKE . Both sets of b rake pad s on an ax le mus t alway s
be rep laced at the same time.
& WARNING
Driving with bad brakes can c ause a collision and serious personal
injury.
• If the warning light and the warning light BRAKE1> with the
mes sage Brak e pads! comes on in the instrument cluster di splay,
immediately contact your authorized Audi dealer or qualified
workshop to have all brake pads checked or replaced if necessary. •
ll BRAKE: USA mo dels only
Headlight range control ~[)
, Headlight range control defective !
If the sym bo l i llum inat es , the dyn ami c he adlig ht range co nt rol is no
longer wo rking properly . H ave t he system ch ecked and repaired at
your aut horize d Au di dea ler. •
Engine oil level Please che ck oil level
W hen th e symbo l illuminates, check th e eng ine o il level as soo n as
possible =>
page 301. Top off the oil at yo ur earliest o pportunity
=>page 3 02. •
Engine oil sensor defective
Oil level ! Sensor defective
C
-
If the symbo l illuminates, contact your author ized Audi dealer and
h ave the o il sensor inspec ted . Unti l y ou have this d one, check t he oil
level each time you refue l just to be on the safe side=>
page 301 . •
A pplie s to v eh icl es: w ith eng in e s peed l imitat io n
Engine speed limitation .?i
!'"') Do not exceed max . engine speed of XXXX rpm
T he ; symbol illuminates when there is an engine con trol malfunc ­
tion. The indicator light • in t he instrument cl uster also illuminates.
T he eng ine speed is limi ted to the speed displaye d in the d river info r­
mation system . Keep in m ind that t he engine s peed will not exceed
th e v alu e disp laye d in th e d river infor mati on sy ste m, for examp le
w hen downshift ing. .,_

1111....__A_ d_ a_,_ p_t _i_ v _e _ C_r_ u_ i_ s_ e_ C_ o_ n_ t_ r_ o_ l __________________________________________ _
Applie s to veh icles : wi th Adap tiv e Crui se Con tro l
How does Adaptive Cruise Control work?
Vehicles traveling ahead ore detected with the aid of a
radar sensor.
Fig. 129 Basic prin­
ciple diagram: Radar
sensor measurement
range
Adaptive Cruise Control uses a radar sensor in the front of the vehicle
=>
page 136, fig. 129 . The system has limitations=> page 147.
Things that are not moving in your lane and in your direction of travel
w ill not be detected. The sensor measures the distance to reflective
surfaces that must have a certain size. The system responds only
after the distance measurement has been made . If a measurement is
not possible, the system cannot respond and will not react to a
vehicle or someth ing else up ahead.
Open road
When the road is clear, the Adaptive Cru ise Control works like cruise
control. It maintains a constant target speed specified by the driver .
Driving in traffic
If a slower veh icle driv ing ahead is detected, the Adaptive Cruise
Control decelerates (within the limits of the system)=>
page 146,
"Driver intervention prompt" and => page 147, "System limitations"
to its speed and after adjusting, tries to ma inta in the set distance
from the vehicle ahead. The vehicle may temporarily drive slower
than the set speed whi le adjusting=>
& in "Descr iption" on
page 134.
If the vehicle in front accelerates, Adaptive Cruise Control also accel­
erates up to the speed that you have set.
If the vehicle ahead slows to a stop, ACC w ill slow your vehicle down
and to a complete stop if this is possible within the system's limits
and capabilities . ACC will not make an emergency stop. The text
message
ACC off: manual control! appears in the instrument cluster
display . Once the vehicle stops, you must depress the brake pedal to
prevent the veh icle from moving forward or "creeping" . Depressing
the brake pedal turns off ACC. When the vehicle ahead accelerates
you can reactivate ACC =>
page 139, as soon as your vehicle has
reached a speed of 1 mph (2 km/h) .
Situations requiring driver intervention
In some situations you will have to use the footbrake to slow the
vehicle down in order to keep a safe distance from vehicle in front of
you or to avoid a rear-end collision. In this situation, a symbol
appears and a warning tone sounds=>
page 146.
Passing another vehicle
If you move into the passing lane and no vehicle is detected ahead,
the Adaptive Cruise Control accelerates to the speed you have set and
maintains it.
Overriding ACC
You can increase your speed at any time by stepping on the acceler ­
ator pedal. After you release the accelerator pedal, the system
adjusts back down to the speed you previously set.
Reduc ing stopping distance
If the radar sensor detects that the distance to the vehicle ahead is
less than defined minimum distance, the brakes are automatically
prepared for emergency braking by the drive r. The brake pads are
moved very close to the brake discs withou t actually bra king the
vehicle. This brake assistant feature reacts more quickly to the driver's braking, and also works when Adaptive Cruise Control is off.
The stopping d istance is reduced as a result of this advance brake .,_

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

lillill.a._...:I:..: n~ t .::.e::::..::.: ll~igent technology ,_ _______________________________________ _
in. WARNING
• You should perform braking maneuvers for the purpose of
cleaning the brake system only if road condition s permit. Other
road u sers must not b e put at r isk - you may cau se an ac cident!
• Before d esc ending a steep gr ade , redu ce speed and shift t ran s­
mission into a lower gear or lower driving range. Do not ride the
brakes or hold the pedal down too long or too often . This could
c ause the brake s to get hot and diminish braking efficiency.
• Do not "ride the brakes " by re sting your foot on the pedal when
you do not intend to brake. Thi s may caus e the brakes to overheat ,
premature wear and increa sed stopping di stance.
• Under certain climatic and operating conditions such as
pas sing through water, driving in heavy rain or after washing the
vehicle, the effectiveness of the brake s can be reduced . In winter,
ice can accumulate on the brake pads , linings , disc s and drums .
Carefully apply brakes for a test. Brake s will dry and ice coatings
will be cleaned off after a few careful brake applications.
• Driving for an extended period of time on salt -cov ered roads
without using your brakes can al so affect braking efficiency. Clean
off accumulated salt coating from brake d iscs and pads with a few
careful brake applications.
• If you damage the front spoiler , or if you install a different
s poiler , be sure the air flow to the front brakes is not obstructed.
Otherwise the brake system could overheat reducing the effective­
ness of the entire brake system.
• Failure of one brake circuit will impair the braking capability
resulting in an increased stopping distance. Avoid driving the
vehicle and have it towed to the nearest authorized Audi dealer or
qualified wo rkshop. •
Brake booster
The brake booster adds e xtra brakin g pow er .
The brake booster wor ks with vacuum pressure which is created on ly
w hen the en gine is ru nning =>& .
in. WARNING
• Never let the vehicle roll to a stop with the engine shut off .
• If the brake booster i s not working , for example when towing
your vehicle , or because the brake booster has somehow been
damaged , the b rake pedal must be p ressed considerably harder to
make up for the lack of booster assistan ce.
Functioning of Anti-Lock Brake System
(ABS)
AB S prevents the wheels from locking up under br aking.
T he ABS co ntribu tes effectively to vehicle co ntrol s ince it prevents t he
w hee ls from
locking when the b rakes are a pplied. This means t hat t he
veh icle rema ins steerable and is less likely to s kid .
W ith ABS you do not need to
pump the brake. Just hold the brake
pedal down .
However, do not expect the ABS to shorten braking distance u nder
all
circums tances. When driving on grave l or on newly fa llen snow on top
of icy su rfaces, braking dis tance may be even longer, therefore, under
these c irc umstances, it is especially important that you dr ive slowly
and w it h great care .
How the ABS system works
An automatic check is made when a speed of about 12 mph (20 km/h)
is reached . When this happens, a p umping noise can be hea rd. ._

Driving and environment
New brake pads
Remember that new brake pads do not have a f ull braki ng
e ff e ct during the first 250 miles (400 kilometers) after they
are i nsta lle d.
New bra ke pads have to be "b urnished in" before they have opt ima l
grab=> &.
Dur ing the break -in period, you sho uld avoid putting severe loads on
the brakes. Severe loads incl ude, for example, sudden hard braki ng,
in particu lar at very high s peeds or, for examp le, on mountai n passes.
& WARNING
New brake pads don 't have the be st stopping power and must be
" broken -in " during the initial 100 to 150 miles (150 to 200 kilo­
meters ) of normal cit y driving. You can compensate for thi s by
pressing th e brak e pedal more firmly. This also applies lat er wh en
new pad s are installed. n
Appli es to ve hicles : w it h g aso line eng ine
Catalytic converter
--
I t is very important th at your emission control system
(ca talytic co n verter) i s func tioning properly to e nsure
that you r vehicle is running in an environmentally sou nd
manner.
- Always us e lead-fr ee gasoli ne ~ page 287, "Gaso line" .
- Never run the tan k down a ll the way to empty.
- Never put too m uch motor oil in your engine~
page 302,
"Add ing e ngi ne o il "t::r.11
•
-Nev er try to p ush- or tow-sta rt yo ur veh icle.
The catalytic converter is an efficient "clean- up" device b uilt into the
exha ust sys te m of the ve hicle. The cat alytic converte r burns many of
t he polluta nts in the exhaust gas before they are released into the
atmosphe re.
Th e e xcl usive use of unleaded fuel is cr itic ally important for the life of
the catalytic converte r and proper f unction ing of the engine.
& WARNING
• Do not park or operate the vehicle in areas where the hot
exhaust system may come in contact with dry grass, brush, fuel
spill or other material which can cause a fire .
• Do not apply additional undercoating or rustproofing on or
near the exhaust manifold , exhaust pipes, catalytic conve rter or
heat shields. During driving, the substance used for undercoating
could overheat and cause a fire .
0 Note
• Be aware that just one tank fi lling wit h leaded fu el wi ll alrea dy
ser iou sly degrade the performan ce of the ca talyt ic co nve rter.
• Do not excee d the correct engine oil leve l=>
page 302 .
• Do not dr ive unti l the f uel tank becomes complete ly empty. The
eng ine could misfire . Unburned fuel could a lso get into the exha ust
system and th is could cause the catalytic converter to overheat.
• Do not t urn o ff the igni tion whi le the ve hicl e is moving.
• Do not contin ue to operate your vehicle under these conditions, as
o therwi se fuel c an reach the cat alytic c onve rter. Th is cou ld resu lt in
over heating of t he converte r, requir ing its rep lacement.
• T o ass ure eff ic ient opera tion of the Emi ssion C ontro l Sy stem:
- Have your vehicle maintaine d properly and in accordance with
t h e se rvice recommenda tions in your Warranty
& M ain tenance
booklet. •

Driving off road
- Activate the ESP offroad mode=> page 252 as needed .
- Use the
hill descent control => page 253 when driving
down steep sections on hills.
Unpaved roads and offroad
Drive slowly on unfamiliar roads and unknown offroad sections, and
loo k out for unexpected obstacles (e .g. potho les, rocks, t ree st umps,
etc.).
T o prevent the vehicle from bo ttoming and avoid dam age to the
underbody, you should drive straight across severe bumps in the
gro und with on ly one s ide of the vehicle so tha t on ly two of your
wheels cross the bumps.
Drive brisk ly throug h sandy or marshy offroad sections and do not
stop, if at all poss ible.
Driving through water
Your vehicle ca n drive at maximum wal king speed thro ugh stand ing
water if the gro und is firm enough . The
maximum water depth is
1 9. 7 in o r 500 mm (ve hicles w it h out air spr ings) or 2 1.1 in or
535 mm (vehicles with Adaptive Air Suspension*, at high level 2).
Driving on a slope
If you ever find yourself not able to climb a slope, do not try to t urn
around, drive bac k dow n in
rever se . Ot herw ise, you run t he ris k of
tipping over .
If the vehicle threaten s to tip over when driving a cross a slope , you
must immediately steer downh ill in the direction of the slope .
Do not park your vehicle on steep slopes or gra des .
T o red uce the risk of tipp ing ove r, d rive on s lopes in t he di re ct io n of
the downward slope (fall line) -
not crosswise .
Driving on snow-covered ground
T he standard tires fitted to your vehicle are not snow ti res. So you
should mo unt wheels with snow t ires in good t ime where winter road
conditions prevail. Before driving on unp lowed stretches o f deep snow, install tire chains
. For tech nica l reasons, t ire chains may only
be ins talle d on the re a r wheels - never on the front whee ls.
& WARNING
After driving through water , mud, slush, etc. , the brake s may be
slow to take effect because of wet brake rotors and pads.
Dry the
brake s first by braking carefully to re store the full braking effe ct.
0 Note
Vehicle components such as the engine, trans mission, s uspension or
electrical system can be severely damaged by dr iv ing through water.
W Tips
• Check the dept h of the water before dr iv in g through it.
• Do not stop the vehicle, dr ive in reverse or sw itch the e ngine off
when driving through water .
• Keep in m ind th at on coming vehicles m ay cre ate w aves t hat ra ise
the water level and make it too deep for your vehicle to drive through
safe ly .
• Avoid dr iving through sa lt water because it ca n cause corrosion .•