2011 AUDI A5 CABRIOLET wheel

ffl..,___A_ i_rb _ a_,g,:;._ s_, y'- s_ t_e _m ________________________________________________ _
& WARNING (conti nued)
• The inflating ai rbag will hit the child safety seat or infant
carrier with gr eat force and will sma sh the child safety seat and
c hild again st the backrest , center armrest , door , or roof.
• Alway s install rearward-facing child restraints in the back seat.
• If you must install a rearward facing child safety seat on the
front passenger seat because of e xceptional circumstances and
the PASSENGER AIR BAG OFF light does not come on and stay on ,
immediately install the rear-facing child safety seat in a rear
s eating po sition and have the airbag system inspected by your
authorized Audi dealer .
& WARNING
If, in except ional circumstances, you must install a forward-facing
child restraint on the front pas senger' s seat:
• Always make sure the forward-fac ing se at has been designed
and certified by its manufacturer for u se 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.
• Alway s move the passenger seat into it s rearmost position
in
the seat 's fore and aft adjustment range, as far away from the
airbag a s possible, before in stalling the forward -facing child
restraint. The back rest must be adjusted to an upright position.
• Make sure that the PASSENGER AIR BAG OFF light comes on
and stays on all the t ime whenever the ignition is switched on .•
Advanced Airbag System components
Th e front passenger seat in your veh icle has a lot of very important
parts of t he A dvanced A irbag System in it. These parts incl ude t he
we ight-sens ing mat, sensors, wiring, brackets, and more. The func- tion of the system
in the front passenger seat is checked by the elec­
t ronic c ontro l unit w hen the ignitio n is o n. The contr ol unit mon itors
t he Advanced Airbag System and tu rns the airbag indicato r light o n
w hen a malfunction in t he system components is detected. The func­
t ion of the a irbag indicator light is descr ibed in greater deta il below .
Because the front passenge r seat co nta ins impo rtant parts of t he
Adva nced Ai rbag System, you must ta ke care to p reve nt i t from be ing
damaged. Damage to the seat may p revent the A dvanced A irbag for
t he fro nt passenge r se at from do ing its job in a crash.
The front Advanced Airbag System consists of the
following:
• Cras h sensors in the front of t he vehicle that measu re vehicle
a cc ele ration/de ce le ra tion to provi de i nfo rm ation to the Advanced
Airbag System about the severity of the crash .
• An e lec tron ic contro l unit, w it h i ntegrated crash sensors fo r front
and side impacts. The contro l unit "dec ides" w het her to fire the front
a irbag s based o n the inform ation receive d fro m t he c rash se nso rs.
The contro l unit also "decides" whether the safety be lt pretens ioners
shoul d be activ at ed .
• An Advanced Air bag with gas generator and control va lve for the
dr ive r in side t he steering wheel hub.
• An Advanced Air bag with gas generator and control va lve inside
t he inst rument pa ne l for the fron t passenge r.
• A weight-sensi ng mat unde r th e up ho ls tery pad ding of the front
passenger s eat cushion that measures the tota l we igh t on the seat .
Th e informat io n registered is sent continuous ly to the elect ronic
con trol unit to regulate deployment of t he front Advanced A irbag o n
the passenger side.
• An airbag mon itoring system a nd ind icator light in the ins trument
cl uster => page
210 .
• A senso r in each front seat reg isters the distance between the
res pective sea t and t he steeri ng whee l o r i nst rument p ane l. T he
info rmation reg iste red is sent co ntin uously to the e lectronic con trol
uni t to reg ulate dep loyment of the front Advanced Air bags . ..,

___ A_ ir_b_ a --= ge....- s.:y _s_ t_ e_ m ________________________________________________ _
situat ions . Be sure to read the important i nformat ion about safety
a nd hee d the WAR NIN GS i n t his ch apte r.
Deployment of the Advanced A irbag System and the act ivat ion of the
safety belt pretensioners depend on the deceleration measured by
t he crash senso rs an d regis tered by the e lectroni c con trol u nit. The
amount of inflation of the front airbags can a lso be adapted to the
front seat pos it ion, depending on t he d istance be tween the respec ­
tive front seat and the steering wheel or instrument panel as reg is­
t ere d by sensors in the seats. Crash seve rity depends on speed and
deceleration as well as the mass and stiffness of the vehicle or object
involved in the crash .
On the passenger side, rega rd less of safety be lt use, the a irbag will
be t urned off if the we ight on the passenger seat is less tha n the
amount prog rammed in the e lec tronic contro l uni t. The fro nt airbag
on the passenger side will a lso be turned off if one of the chi ld safety
sea ts tha t has been cert ified under Federa l Mo to r Vehicle Safety
Standard 208 has been recognized on the seat . The
PASSENGER AIR
BAG OFF
lig ht comes on and stays on to tell you w hen the fron t
Advanced Airbag on the passenger side has been turned off
=> page 201, "C hild restraints o n the front sea t - some impo rtant
things to know ".
& WARNING
To reduce the risk of inju ry when an a irbag inflates, always wear
safety belt s properly.
• If you are un rest rained, leaning forward, sitting sideways or
out of posit ion in any way , your risk of injury is much higher .
• You will also receive serious injuries and could even be killed if
you are up again st the airbag or too clo se t o it wh en it inflates ·
even with an Advanced Airbag=>
page 199. •
More important things to know about front
airbags
Fi g. 1 98 I nfl ate d
front a irb ags
Safety belts are important to he lp keep front seat occupants in the
pro per seated pos ition so that a irbags can unfold prope rly and
prov ide supp lemental protect ion in a frontal collision.
Th e front airbags are designed to provide add itio na l protec tion for
the c hest and face of the driver and the front sea t passenge r when:
• safety belts are worn properly ,
• t he seats have been posit ioned so that the occupant is prope rly
seated as far as possible from the airbag,
• and the head restraints have been properly adjusted .
Because air bags inflate in the b link of a n eye w it h great force, things
you have on your lap o r have place d on the seat cou ld become
dangerous projectiles, and be pushed into you if the a irbag inf lates .
When a n airbag dep loys, fine dust is released. This is normal and is
not caused by a fire in the vehicle. This dust is made up mostly of a
powder used to l ubricate the ai rbags as they deploy.
It could irritate
skin .
I t is important to remember that while the supp lemental airbag
system is desig ned to reduce the li ke lihood of serious injur ies, other
injuries, for example swelling , b ruising and m inor abras ions, can also
happen when airbags infl ate. Airbags do not p rotect the arms or the ..,_

Airbag system --------------------------------------------- -=---=----
lowe r pa rts of the body . Front a irbags only supp lemen t th e t hree
po int saf ety b elt s in som e frontal col lisions in which t he vehicl e decel­
erat io n is high en ough to d ep loy the a irbags.
Front airbags will not deploy:
• if the ignition is switched off w hen a cras h occ urs ,
• in side co llisions,
• in re ar- end collisions,
• in rollove rs,
• when t he cra sh d ecelera tion m easur ed by the airbag sys te m is le ss
than the min imum threshold needed fo r airbag deployme nt as reg is­
t ere d by t he e lectr onic c ontrol u nit.
The front passenger airbag will also not deploy:
• when t he fro nt p ass eng er s eat i s not o ccupi ed,
• when the weight on the front passenge r seat as sense d by the
A dvanc ed Airba g Sy stem indicat es that t he front a irbag o n the
passenge r s id e has to be turned off by the e lectro nic con trol unit (the
PASSENGER AIR BAG OFF lig ht c om es on an d sta ys on).
& WARNING
Sitting in the wrong position can increase the risk of serious injury
in crashes.
• To reduce the risk of injury when the airbags inflate, the driver
and passengers must always sit in an upright position , must not
lean against or place any part of their body too close to the area
where the airbags are located.
• Occupants who are unbelted, out of position or too close to the
airbag can be seriously injured by an airbag as it unfolds with
great force in the blink of an eye=>
page 201.
Controls and equip­
ment Safety first Vehicle operation
& WARNING
A child in a rearward-facing child safety seat installed on the front
passenger seat will be seriously injured and can be killed if the
front airbag inflates - even with an Advanced Airbag System.
• The inflating airbag will hit the child safety seat or infant
carrier with great force and will smash the child safety seat and
child against the backrest, center armrest, door or roof.
• Always install rear-facing child safety seats on the rear seat.
• If you must install a rearward facing child safety seat on the
front passenger seat because of exceptional circumstances and
the PASSENGER AIR BAG OFF light does not come on and stay on,
immediately install the rear-facing child safety seat in a rear
seating position and have the airbag system inspected by your
authorized Audi dealer.
& WARNING
Objects between you and the airbag will increase the risk of injury
in a cra sh by interfering with the way the airbag unfolds or by
being pushed into you as the airbag inflates.
• Never hold things in your hands or on your lap when the vehicle
is in use.
• Never transport items on or in the area of the front passenger
seat. Objects could move into the area of the front airbags during
braking or other sudden maneuver and become dangerous projec­
tiles that can cause serious personal injury if the airbags inflate .
• Never place or attach accessories or other objects (such as
cupholders, telephone brackets, large , heavy or bulky objects) on
the doors, over or near the area marked "AIRBAG " on the steering
wheel , instrument panel, seat backrests or between those areas
and yourself. These objects could cause injury in a crash, especially
when the airbags inflate .
• Never recline the front passenger's seat to transport objects .
Items can also move into the area of the side airbag or the front
IIJ,,
Vehicle care Do-it-yourself service Technical data

Airbag system Ill
----------------=--=---
& WARNING (co ntinued )
seating position and have the airbag system inspected by your
authorized Audi dealer.
• A tight tether o r other strap on a rearward -facing child
restraint attached to the front pa ssenger seat can put too much
pressure on the weight -sensing mat in the seat and register more
weight than i s actually on the seat . The heavier weight regi stered
can make the system work as though an adult were on the seat
and deploy the Advan ced Airbag when it mu st be suppre ssed
causing serious or even fatal injury to the child .
• If , in exceptional circumstanc es, you must install a forward­
facing child restraint on the front passenger seat, always move
the seat into its rearmost po sition in the seat' s fore and aft adjust­
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 positions.
• Have the airbag system inspected by your authorized Audi
dealer before transporting anyone on the front passenger seat .
[ i ] Tips
If the we ight-sens ing mat in the front passenger seat detects an
em pty seat, the front airbag on the passenge r side will be t urne d off,
and PASSENGER AIR BAG OFF will stay on.•
Controls and equip­ ment Safety first Vehicle operation
Repair, care and disposal of the airbags
Parts of the airbag system a
re insta lled at many different places on
your Audi. I nstall ing, remov ing, serv icing o r rep airi ng a pa rt in an
area of the vehicle ca n damage a part of a n airbag system and prevent
t ha t sys tem from working prope rly in a coll is io n.
Th ere are some importa nt things you have to know to ma ke sure t hat
the effectiveness of the system will not be impai red and that
dis ca rded compo nents do not cause injury or po llute t he e nvir on­
ment .
& WARNING
Improper care , serv icing 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, obstruct, or change the steering wheel horn pad or
airbag cover or the instrument panel or modify them in any way .
• Never attach 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 water . Solvent s or cleaners
could damage the airbag cover or change the stiffness or strength
of the material so that the airbag cannot deploy and protect prop ­
erly.
• Never repair, adjust, or change any part s of the airbag system .
• All work on the steering wheel, instrument panel , front seats
or electrical sy stem (including the installation of audio equip­
ment, cellular telephones and CB radios, etc. ) must be performed
by a qualified technician who has the training and special equip­ ment necessary .
• For any work on the airbag system, we strongly recommend
that you see your authorized Audi dealer or qualified workshop.
• Never modify the front bumper or parts of the vehicle body . ..,_
Vehicle care Do-it-yourself service Technical data

----------------------------------------------~A....::..:.... ir:....: b.::..:;; a..::g ~ s~y -=s:....: t:...: e:...: m...:....:.. __ lffll
If the front air bags deploy, th e knee a irbags also dep loy i n fronta l
coll is ions ab ove a c ertain s everity.
When the sys tem is d epl oyed , the ai rb a gs s ta rt to fill wi th a propel­
lant gas, a nd inflate between the lowe r pa rt of t he instr ument pane l
and th e drive r an d th e l owe r part of the in strum ent pan el a nd t he
front passenger ~
page 208, fig. 198.
Al th ou gh they are no t a soft pil low, they can cus hion th e impact and
in t his way th ey can help to red uce the risk of in jury to t he lower
extremities.
A ll thi s t akes pla ce in stan tan eously , so fas t th at ma ny pe opl e don 't
even rea lize that t he airbags have deployed. The airbags a lso inflate
w ith a g reat d eal o f for ce and it is im portant for o ccupa nt saf ety th at
nothing sh ould be in their way when t hey deploy .
F ully in flated airba gs i n com binatio n with pr ope rly wo rn safety belts
slow dow n and limit the occ upant's forwa rd movement a nd he lp to
re duce the risk. •
Applies to veh icles : w it h Kn ee air ba gs
Important safety instructions on the knee
airbag system
Airbags ar e only supp lem en tal r estra ints . Alw ays wear
s a fe ty be lts cor re ctly and ride in a proper seating pos i­
ti on .
Th ere is a lot that you an d yo ur passe ngers m ust know an d do to help
the sa fet y b elts and airbags to p rov id e su pp lemen tal protec tio n.
& WARNING
An inflating knee airbag can cause serious injury. Wearing safety
belts incorrectly and improper seating positions increase the risk
of serious personal injury and death whenever a vehicle is being
used.
Controls and equip­ ment Safety first Vehicle operation
& WARNING
(cont inued )
• The airbag system cannot protect you properly if you are seated
too close to any of the airbag locations. When adjusting their seat positions, it is important that both the driver and the front
passenger keep their upper bodies and knees at the following
minimum safe distances:
- 10 inches (25 cm) between the chest and the steering
wheel/instrument panel.
-4 inches (10 cm) between the knees and the lower part of
the instrument panel.
• The risk of personal injury increases if you lean forward or to
the side, or if the seat is improperly positioned and you are not
wearing your safety belt. The risk increases even more should the
airbag deploy .
• Always make sure that the knee airbag can inflate without
interference. Objects between yourself and the airbag can increase
the risk of injury in an accident by interfering with the way the
airbag deploys or by being pushed into you as the airbag deploys.
-No persons (children) or animals should ride in the footwell
in front of the passenger seat. If the airbag deploys, this can
result in serious or fatal injuries.
- No objects of any kind should be carried in the footwell area
in front of the driver's or passenger's seat. Bulky objects (shop­
ping bags, for example) can hamper or prevent proper deploy­
ment of the airbag. Small objects can be thrown through the
vehicle if the airbag deploys and injure you or your passengers.
• Make sure there are no cracks, deep scratches or other damage
in the area of the instrument panel where the knee airbags are
located.
• If children are incorrectly seated, their risk of injury increases
in the case of an accident~
page 221, "Child Safety". •
Vehicle care Do-it-yourself service Technical data

____ C_h _i_ld _ S_a _f ...;.e ....:t "- y ________________________________________ _
& WARNING (conti nued)
• Alway s in stall rearwa rd-facing child safety seats on the rear
seat.
• If you must install a rearward facing child safety seat on the
front passenger seat in exceptional circumstance s and the
PASSENGER AIR BAG OFF light does not come on and stay on ,
immed iately install the rearward-facing child safety seat in a rear
seating position and have the airbag system inspected immedi ­
ately by your authorized Audi dealer .
& WARNING
If, in exceptional circumstances, you must install a forward-facing
child res traint on the front pas senger's seat:
• Always make sure the forward-facing seat has been designed
and certified by it s manufacturer for use on a front seat with a
passenger front and side airbag.
• Always follow the manufacturer 's instruction s provided with
the child safety seat or carrier.
• Always move the passenger seat into it s rearmost position in
the seat 's fore and aft adjustment range, as far away from the
airbag as possible before installing the child restraint. The back­ rest must be adjusted to an upright position.
• Always make sure that the PASSENGER AIR BAG OFF light
comes on and stays on all the time whenever the ignition is
switched on .•
Advanced front airbag system and children
Your vehicle is equi pped wi th a fron t "Advanced Airbag System" in
compliance with United States Federal Motor Vehicle Safety Standard
( F MVSS) 2 08 as appli ca ble at t he time your ve hicle was manufa c­
tured. 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 system 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 up to 1 2 months who a re res train ed 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 rea rwa 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 lated to t he design 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 k inds of child res tra ints .,_

Intelligent technology
--------------------------------------------------' "---.L==--
The system operates across the entire speed range in combination
w ith the ABS sys tem. If the A nti-L o ck Brak e System (A BS) mal fun c­
tions, the ESP will also shut down.
How the system works
The Anti-Lock Brake System (ABS), Elect ronic D ifferential Lock (EDL)
and the Anti-Slip Regul ation System (AS R) are in teg rated in the e lec ­
tronic stab ilizat ion program . In addition to the data prov ided by
th ese fun ctions, the ESP control unit re quires addi tional meas ure ­
ment data provided by hig h pe rformance senso rs . The ro tat ional
speed of the vehicle about its vertical axis, veh icle acceleration in the
fore-and-a ft and lateral d irect ions, the brake pressure , a nd the
steerin g ang le are all measured .
Th e d irec tion in whi ch the driver w ishes to tra ve l is d ete rm ined wi th
the a id of the steering a ngle and ve hicle speed and is con tinually
c omp ared wi th the a ctu al b ehavior o f the ve hicl e. If t he two do no t
match, for example, when the vehicle starts hydroplani ng on a wet
roa d, E SP w ill automatica lly bra ke the approp riate whee l to correct
the problem.
Th e ve hicle is t hen stab ilized by the fo rces acting on the whee l during
bra king .
If the ve hicl e is oversteering (the vehicle tu rns too s harp ly
and the rear whee ls slide toward the outside of a curve), the brakes
a re mainly a pplied on the whee l tha t is o n the o uts ide of t he curve. In
the case of a vehicle that is
understeering (the vehicle does not turn
shar ply enough and push es out o f a curve), the b rakes are ap plied as
needed on the whee l th at is on the inside of the curve or additionally
on the ot her wheels . An acoustic s ignal indicates w hen ESP bra ke
applica tion cuts in=> &.
T he system operates across the entire speed range in combination
w ith the A BS system =>
page 245. If the A nti-Lo ck Br ake Sys tem
(ABS) ma lfunctions, the ESP w ill be o ut of act ion as we ll.
Activating
When you turn on the engine, ESP wi ll automatica lly be activated and
w ill pe rfor m a self- tes t. As soo n as t he tes t is c om plete d, th e sys tem
is in normal operating mo de.
Controls and equip­
ment Safety first Vehicle operation
Yo
u can activate a deactivated ESP or deactivated ESP/ ASR if required
b y pressi ng the =>
page 240, fi g. 2 13 => page 240, fig. 2 12 bu tton.
Wh en they are activated, the message
Stabilisation program on
appears briefly in t he di sp lay .
Deactivating
The ES P shoul d no rma lly be acti va te d a ll the tim e. I f necess ary, y ou
can deact ivate A nti-Slip Reg ulat io n (ASR) or th e Electro nic Sta biliza ­
t ion Progr am ( ES P) by p ress ing the button =>
page 2 40, fig. 213.
• Deactivating ASR: Tap th e button . In cer tain exceptional s itua­
t ions (e.g. driving with tire chains), the Anti -Slip Reg ulation (ASR) can
be dea ct iva te d =>
page 242. The m ess age ASR off Caution! Limited
driving stability
a pp ears in the d isp lay as well.
• Deactivating ESP/ASR Press the but ton for mor e tha n 3 seconds .
With the ESP/ASR deactivated, t he ESP check light comes o n, see
=>
p age 14. The m ess age Warning! Restri cted stability ap pears in
the display as we ll.
& WARNING
The Electronic Stabilization Program is nevertheless subje ct 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 .
u
Vehicle care Do-it-yourself service Technical data

Intelligent t echnology
---------------------------------------
Electronic differential lock (EDL)
The elec tronic differen tial lock monitors the rotational
speed of the drive wheels.
G en era l not es
The electronic differentia l lock (EDL) helps the ca r to sta rt moving,
accelerate and climb a gradient on surfaces provid ing poor or almost
no grip . W ithout ED L, this would be d iff icu lt, if not impossible.
How the sy stem works
The EDL operates automatically. It mo nitors the rota tional speed of
wheels with the help of the ABS sensors=>
page 245. If a not iceab le
slip is detected at the wheels (e.g. on slippery g round on one side),
the spinn ing 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).
No ises from the brake system signal that wheel sp in is being
controlled.
Driv ing off
When d riving off, always be s ure to keep road conditions in mind as
you accelerate. If one drive wheel spins because it is on a surface with
less grip, apply
plenty of throttle until the car starts to move.
O verheating of bra kes
To prevent the disc b rake of the bra ked wheel from ove rhea ting if
subjected to excessive loads on this wheel, the EDL cuts out tempo­
ra rily. The vehicle remains operat io nal and be haves in the same way
as a veh icle without EDL.
As soon as the brake has coo led down, EDL switches on again auto ­
matically.
Electronic limited slip differential
In vehicles w ith front wheel drive *, an e lectron ic lim ited slip d ifferen­
tial engages when driving on curves . The brakes are applied spec ifi­
cally to the front wheel that is on the inside of the curve. T his m ini­
m izes sliding on the front wheels and enables precise and neutral dr
iv ing t hrouge curves. The electronic lim ited slip differentia l does
no t engage whe n driving in we t cond it io ns or snow.
& WARNING
• Wh en acc elerating on slipp ery s urface s, such a s on ice or snow,
always be careful when depre ssing the accele rator pedal. Even
with the EDL and the electroni c limited slip differential working,
the dr ive wh eels can spin and reduce you r ability to control your
c ar . -Ri sk of cra sh!
• The increased safet y afforded b y EDL and the electronic l imited
slip differ ential d oes not mean th at you can take safety risks .
Alw ay s adapt your d riving st yle to the road c onditions and traffi c
si tuation.
[ i ] Tips
If a fa ult occurs in the ABS, the EDL is also not funct ioning. This is
ind icated by the ABS warn ing light=>
page 15 . •
Anti-Slip Regulation System (ASR)
The Anti-Slip Regulation System prevents the driven
wheels from spinning when the car is a ccelerating.
General notes
T he Anti-Slip Regu lation System (ASR) is in tegrated in the electronic
stabilization program (ESP) . When the veh icle starts up and acceler­
a tes, the wheels are preven ted from sp inning by adjust ing the engine
power to match the amount of grip ava ilable from the road surface.
How the system works
ASR performs automatica lly, i.e. without the driver's intervent ion.
With the a id o f the ABS sensors=>
page 245, ASR moni tors the speed
of the driven wheels. If the wheels start to spin, engine torque is
reduced automatically unti l the tires find enough grip to lock onto
the road s urface. The system is active across the entire speed range . .,