warning light AUDI Q7 2013 Owner´s Manual

210 Child Safety
as possible before installing the child
restra int.
-A lways make sure that nothing pre­
vents the front passenger's seat from being moved to the rearmost position
in its fore and aft adjustment range.
- Always make sure that the backrest is
in the upright position.
- Always buck le the child safety seat firmly
in place even if a child is not sitting in it.
A loose child safety seat can fly around
dur ing a sudden stop or in a coll is ion.
- Always read and heed all WARNINGS
whenever using a child restrained in ave­
hicle is being used
c::> page 175, Safety
belts,
c::> page 184, Airbag system and
c::> page 205, Child Safety.
A WARNING
To reduce the risk of serious injury, make
sure that the
PASSENGER AIR BAG OFF
light comes on and stays on whenever a
child restraint is installed on the front pas­
senger seat and the ignition is switched
on.
- Take the child restraint off the front pas ­
senger seat and install it properly at one
of the rear seat positions if the
PASSEN­
GER AIR BAG OFF
light does not stay on.
- Have the airbag system inspected by
your authorized Audi dealer immediate­
ly.
Secure unused safety belts on the rear
seat
Fig. 217 Schematic overview: keep unused safety belts
away from ch ildren in child sa fety seats. @· oute r rear
safety belt,@· center rear safety belt
If a child safety seat is used on the rear bench,
especially with LATCH universal lower ancho­
rages, the unused safety belts
must be se­
cured so that the child in the child restraint
cannot reach them
c::> & .
-Guide the safety belt webbing behind the
head restraint of the adjacent seat
c::>fig. 217. When doing so, do not engage
the switchable locking retractor! You should not hear a "clicking" sound when wind ing up
the safety belt.
- Let the belt retractor wind up the safety belt
webbing.
A WARNING ,-
A child in a chi ld safety seat installed with
the LATCH lower a nchorages or with the
standard safety belt or a child in a booster
seat on the rear seat could play with un­
used rear seat safety belts and become en ­
tang led . This could cause the chi ld ser ious
personal injury and even death.
-Always secure unused rear seat sa fety
be lts out of reach of children in child
seats such as by properly routing them
around the head restraint of the seat
where the ch ild restraint is installed.
- Never activate the switchable locking re­
tractor when routing the safety belts
around the head restraints.
- Never let anyone sit at the center rear
seating position if the center rear safety
be lt has been routed around a rear head
restraint.

Child safety seats
Infant seats
Babies and infants up to about one year old
and 20 lbs. or 9 kg need special rearward -fac ­
ing child restraints that support the back,
neck and head in a crash.
Fig . 218 Sche matic overv iew: rearward-fac ing infant
seat, properly installed o n the rear seat
.,. When using the vehicle safety belt to install
a ch ild safety seat, you must first activate
the convertible locking retracto r on the
safety be lt to prevent the child safety seat
from moving
¢ page 215 or install the seat
using the LA T CH attachments.
.,. Push the child safety seat down with your
full weight to get the safety belt rea lly tight
so that the seat cannot move forward or
sideways more than one inch (2.5 cm).
.,. Secure unused safety belts on the rear seat
¢page 210.
Infants up to about one year (20 lbs. or 9 kg)
are best protected in special infan t carriers
and child safety seats designed for their age
group . Many experts believe that infants and
small children should ride only in spec ial re­
straints in which the ch ild faces the back of
the vehicle. These infant seats support the ba­
by's back, neck and head in a crash
¢fig . 218.
The airbag on the passenger side makes the
front seat a po tentially dangerous place for a
child to r ide . The front seat is not the safest
p lace for a child in a forward -facing child seat.
It is a very dangerous p lace for an infant or a
l arger ch ild in a rearward-facing seat.
Child Safety 211
A WARNING
Not using a child safety seat, using t he
wrong child safety seat or improperly in ­
stall ing a ch ild restraint increases the risk
of ser ious personal injury and death in a
crash.
- Never install rear-facing child safety
seats or infant ca rr ie rs on the front pas­
senger seat -even with an Advanced Air ­
bag Sys tem. A ch ild will be ser iously in­
jured and ca n be killed when the inflat ­
ing airbag hits the child safety seat or in­
fant carrier with great force and smashes the child safety seat and child against
the backrest, center armrest, door or
roof ¢
page 186, Child restraints on the
front seat- some important things to
know .
-Always install rear-fac ing ch ild safety
seats or infant carriers on the rear seat .
- Never install a rear-fac ing ch ild restraint
in the forward-fac ing d irect ion. Such re­
straints are designed for the special needs of infants and very small ch ild ren
and cannot prote ct them properly if the
seat is forward- facing.
- If you mus t insta ll a rearward fac ing
child sa fety seat on the fro nt passenger
seat because of exceptiona l circumstan­
ces and t he
PASSENGER AIR BAG OFF
light does not come on and stay on, im­
mediately insta ll the rear -fac ing ch ild
safety seat in a rear seating position and
have the airbag system inspected by your
Aud i dea ler .
- Always read and heed all WARNINGS
wheneve r us ing a child restrained in ave­
hicle is being used¢
page 175 , Safety
belts,
¢ page 184, Airbag system and
¢ page 205, Important things to know.

212 Child Safety
Convertible child safety seats
Properly used convertible child safety seats
can help protect toddlers and children over
age one who weigh between
20 and 40 lbs. (9
and 18 kg) in a crash.
Fig. 219 Schematic overv iew : ins tallat ion of t he at­
ta chments applicable to a LATCH seat
Fig. 220 Sche matic overview: insta llation of th e sea t
us ing t he veh icle's safety be lt system
.. When using the vehicle safety belt to install
a chi ld safety seat, you must f irst activate
the convertible locking feature on the safety
belt to prevent the child safety seat from
moving ¢
page 215 or install the seat using
the LATCH attachments .
.. Push the child safety seat down with your
full weight to get the safety belt really t ight
so that the seat cannot move forward or sideways more than one inch (2.5 cm)
¢page 215.
.. If the child safety seat is equ ipped with a
tether strap, attach it to the tether anchors
¢page 222.
.. Secure unused safety belts on the rear seat
¢page 210.
A toddler or child is usually too large for an in­
fant restra int if it is more than one year o ld
and weighs more than 20 lbs. (9 kg). T
oddlers and children who are older than one
year up to about 4 years old and weigh more
than 20 lbs. (9 kg) up to 40 lbs. (18 kg) must
always be properly restrained in a child safety
seat certified for their size and weight
¢ fig . 219 and ¢ fig. 220 .
The airbag on the passenger side makes the
front seat a potentia lly dangerous place for a
child to ride. The front seat is not the safest
place for a child in a forward-facing child safe­
ty seat . It is a very dangerous place for an in­
fant or a larger child in a rearward-facing seat.
_&. WARNING
Not using a child safety seat, using the
wrong child safety seat or improp erly in­
stalling a chi ld restraint increases the risk
of serious personal injury and death in a
collision or other emergency situation .
- Children on the front seat of any car,
-
even with Advanced Airbags, can be seri­
ously injured or even killed when an air­ bag inflates . A chi ld in a rearward-facing
child safety seat installed on the front passenger seat will be serious ly injured
and can be killed if the front airbag in­
f la tes -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 exceptiona l circumstan­
ces and the
PASSENGER AIR BAG OFF
light does not come on and stay on, im­
mediately insta ll the rear-facing child
safety seat in a rear seating position and
have the airbag system inspected by your
Aud i dealer.
- The rear side of the child safety seat
should be pos itioned as close as possible ..,.

to the backrest on the vehicle seat. Ad­
just or remove the rear seat head restraint if it is diff icult to install the
child seat w ith the head restraint in place
¢ page 77. Install the head restraint
again immed iate ly once the child seat is
removed. Driving without head rest raints
o r with he ad restraints that are not prop­
erly adjusted increases the risk of serious
or fatal neck injury dramatically.
- Always read and heed all WARNINGS
whenever using a child rest rained in ave ­
hicle is being used
¢page 175, Safety
belts,¢ page 184, Airbag system
and
¢ page 205, Important things to know.
A WARNING
If except ional circumstances requ ire the
use of a forward-facing child restra int on
the front passenger's seat, the ch ild's safe­
ty and well-being require that the follow­
ing special precautions be taken:
- Make sure the forward-fac ing seat has
been designed and certified by its manu­
factur er for use on a front seat with a
passenge r fron t and side airbag.
- Always follow the manufacturer's in­
st ruct ions provided with the child sa fety
sea t or infan t carrier.
- Always mov e the front passenge r seat in­
to the rearmost posit ion of the passen­
ger seat's fore and aft ad justment r ange,
and as far away from the airbag as possi­
ble before instal ling the child restraint.
- Always m ake sure that noth ing prevents
the front passenger's seat from bei ng
moved to the rearmost position in its
fore and aft adjustment range .
- Always make sure the backrest is in an upright position.
- Make su re that the
PASSENGER AIR BAG
OFF
light comes on and stays on all the
time whenever the ignition is switched
on.
- If the light does not stay on, perform the
checks¢
page 195, Monitoring the Ad­
vanced Airbag System.
-
Child S afety 213
-Take the chi ld restraint off the front pas­
senger seat and install it properly at one
of the rear seat positions if the
PASSEN­
GER AIR BA G OF F
light does not stay on
whenever the ignit ion is switched on.
Booster seats and safety belts
Properly used booster seats con help protect
children weighing between about 40 lbs. and
80 lbs . (18 kg and 36 kg) who are less than 4
ft. 9 in . (57 inches/1 .45 meters) tall.
In .... N 0 ±
~
Fig . 221 Rear seat: ch ild properly res trained in a boos­
ter seat
The vehicle's safety belts alone will not fit most children until they are at least 4
ft. 9 in .
(57 inches/1.45 me ters) tall and weigh about
80 lbs . (36 kg) . Booster seats raise these chi l­
dren up so tha t the safety belt w ill pass p rop­
erly over the stronger parts of the ir bodies
and the safety be lt can he lp protect them in a
crash.
.,. Do not use the conver tible locking ret ra ctor
when using the ve hicl e's s afety be lt to re­
s train a ch ild on a booster seat.
... The shoulder belt must lie as close to the
center of the ch ild's collar bone as possible
and must lie flat and snug on the upper
body. It must never lie across the throat or
neck . The lap belt must lie across the pelvis
and never across the stomach or abdomen .
Make s ure the belt lies flat and snug. Pull on
th e belt to tighten if necessary.
.,. If you must transport an o lder ch ild in a
booster seat on the front passenger sea t,
you can use the safety be lt height adjust ­
ment to he lp ad just the shou lder portion
properly.

-Children on the front seat of any car,
even with Advanced A irbags, can be seri­
ous ly injured or even killed when an a ir­
bag inflates.
- Never let a child stand or kneel on any
seat, for examp le the front seat.
- Never let a child ride in the cargo area of
your vehicle .
- Always remember that a ch ild lean ing
forward, sitt ing sideways or out of posi­
t ion in any way during an acc ident can be
struck by a deploying airbag . This will re­
sult in se rious personal injury or death .
- If you must install a booster seat on the
front passenger seat because of excep­
t ional circumstances the
PASSENGER
AIR BAG OFF
light must come on and
stay on, whenever the ignition is switch­
ed on.
- If the
PASSENGER AIR BAG OFF light
does not come on and stay on, perform
the checks described¢
page 195, Moni­
toring the Advanced Airbag System.
- Ta ke the child restrain t off the front pas­
senger seat and install it properly at one
of the rear seat positions if the
PASSEN­
GER AIR BAG OFF
light does not stay on
whenever the ignition is switched on.
- Always read and heed all WARNINGS
whenever using a child restrained in ave­
hicle is being used¢
page 175, Safety
belts,¢ page 184, Airbag system
and
c:> page 205, Important things to know.
Installing a child safety
seat
Securing a child safety seat using a
safety belt
Safety belts for the rear sea ts and the fron t
passenger can be locked wi th the convertible
locking retractor to properly secure child
safety seats .
The safety belts emergency lock ing retractors
for the rear seats safety belts and for the
front passenger's seat safety belt have a con ­
ve rtible locking retractor for child restraints.
Child Sa fet y 215
The safety belt must be locked so that be lt
webbing cannot unree l. The retractor can be
activated to lock the safety belt and prevent
the safety belt webbing from loosening up
during normal dr iving . A child safety seat can
only be properly installed when the safety belt
i s locked so that the chi ld and child safety
seat w ill stay in place .
Always remember: Even though your vehicle is equipped with an Advanced Airbag system, all
ch ildren, especially those 12 years and young­
er, shou ld always r ide in the back seat proper­
ly restrai ned fo r the ir age and size.
A WARNING
Improperly installed chi ld safety seats in­
crease the risk of serious personal injury
and death in a collision.
- Always ma ke sure that the safety belt re­
tracto r is loc ked when installing a child
safety seat . An unlocked safety belt re­
tractor cannot hold the child safety seat
in place during normal dr iving or in a
crash.
- Always buckle the child safety seat firmly
in place even if a ch ild is not sitt ing in it.
A loose child safety seat can fly around during a sudden stop or in a collision .
- Always make sure that the rear seat
backrest to which the center rear safety
be lt is attached is securely latched when­
eve r the rea r center safety belt is being
used to secure a ch ild restra int.
- If the backrest is not securely latched,
the child and the child restraint will be
thrown forward together with the back­ rest and will strike parts of the vehicle
interior. The child can be seriously in­
jured or killed.
- Never install rear-fa cing child safety
seats or infant carrie rs on the front pas ­
senger seat . A child will be serio usly in­
jured and can be killed when the passen­ ger airbag inflates.
- The inflating airbag will h it the ch ild
safety seat or infant carrier with great
force and will smash the child safety seat
~
•
•

216 Child Safety
and child against the backrest, center
armrest, door or roof.
- Always install rear-facing child safety
seats or infant carriers on the rear seat.
- Forward-facing child safety seats or in­
fant carriers installed on the front pas­
senger's seat may interfere with the de­
ployment of the airbag and cause serious
injury to the child.
- It is safer to install a forward-facing
child safety seat on the rear seat.
- Always read and heed all WARNINGS whenever using a child restrained in ave­
hicle is being used
c::> page 205 . Special
precautions apply when installing a child
safety seat on the front passenger seat
c::> page 186, Child restraints on the front
seat -some important things to know.
A WARNING
Always take special precautions if you
must install a forward or rearward-facing
child restraint on the front passenger's
seat in exceptional situations:
- Whenever a forward or rearward-facing
child restraint is installed on the front
passenger seat, the
PASSENGER AIR
BAG OFF
light must come on and stay on
whenever the ignition is switched on.
- If the
PASSENGER AIR BAG OFF light
does not come on and stay on, perform
the checks described
<=:> page 195, Moni­
toring the Advanced Airbag System.
- Take the child restraint off the front pas­
senger seat and install it properly at one
of the rear seat positions if the
PASSEN­
GER AIR BAG OFF
light does not stay on
whenever the ignition is switched on.
- Improper installation of child restraints
can reduce their effectiveness or even
prevent them from providing any protec­
tion.
- An improperly installed child restraint
can interfere with the airbag as it de­
ploys and seriously injure or even kill the
child. -
Always carefully follow the manufactur­
er's instructions provided with the child
safety seat or carrier.
- Never place additional items on the seat
that can increase the total weight regis­
tered by the weight-sensing mat and can
cause injury in a crash .
A WARNING
-Forward-facing child restraints:
- 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 re­ straint up, against or very near the in­
strument 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 comes on and stays on all the
time whenever the ignition is switched
on .
A WARNING
Rearward-facing child restraints:
- 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 be especially careful if you must
install a rearward facing child safety seat
on the front passenger seat in exception-
al circumstances.
~

-A tight tether strap on a rearward-facing
child restraint attached to the front pas­
senger seat can put too much pressure on the weight-mat in the seat and regis­
ter a heavier weight in the Advanced Air­
bag System . The heavier weight regis­
tered can make the system work as
though an adult were on the seat and de­
ploy the Advanced Airbag when it must
be suppressed causing serious or even
fatal injury to the child .
- Make sure that the
PASSENGER AIR BAG
OFF
light comes on and stays on all the
time whenever the ignition is switched
on.
- If the
PASSENGER AIR BAG OFF light
does not come on and stay on, immedi­
ately install the rear-facing child safety
seat in a rear seating position and have
the airbag system inspected by your Audi dealer.
Activating the convertible locking
retractor
Use the convertible locking retractor to se­
cure a child restraint.
Always heed the child safety seat manufactur­
er's instructions when installing a child re­
straint in your vehicle . To activate the conver­
tible locking retractor :
.. Place the child restraint on a seat, prefera­
bly on the rear seat.
.. Slowly pull the belt
all the way out .
.. Route it around or through the child re ­
straint belt path~&_ .
.. Push the child safety seat down with your
full weight to get the safety belt really tight.
.. Insert the belt tongue into the buckle for
that seating position .
.. Guide the safety belt back into the retractor
until the belt lies flat and snug on the child
safety seat .
.. You should hear a "clicking " noise as the
belt winds back into the inertia reel. Test the
convertible locking retractor by pulling on
the belt . You should no longer be able to
Child Safety 21 7
pull the belt out of the retractor. The con­
vertible locking retractor is now activated.
.. Make sure that the red release button is fac­
ing away from the child restraint so that it
can be unbuckled quickly.
.. Pull on the belt to make sure the safety belt
is properly tight and fastened so that the
seat cannot move forward or sideways more
than one inch (2.5 cm).
_&. WARNING
Using the wrong child restraint or an im­
properly installed child restraint can cause
serious personal injury or death in a crash.
- Always make sure that the safety belt re-
tractor is locked when installing a child
safety seat. An unlocked safety belt re­
tractor cannot hold the child safety seat
in place during normal driving or in a
crash.
-Always buckle the child safety seat firmly in place even if a child is not sitting in it.
A loose child safety seat can fly around
during a sudden stop or in a crash.
- Always make sure the seat backrest to
which the child restraint is installed is in
an upright position and securely latched
into place and cannot fold forward . Oth­
erwise, the seatback with the child safety
seat attached to it could fly forward in
the event of an accident or other emer­
gency situation .
- Always read and heed all WARNINGS
whenever using a child restrained in ave­
hicle is being used¢
page 205. Special
precautions apply when installing a child
safety seat on the front passenger seat
¢ page 186, Child restraints on the front
seat -some important things to know .
-
•
•

224 Child Saf ety
Re leas ing th e te th er str ap
.. Loosen the tension following the child re­
stra int manufacturer's instructions.
.. Depress the spring catch on the hook and
release it from the anchorage .
.. Fo r t he seco nd ro w of se ats: Push the floor­
ing forward into place again.
.. For the th ird r ow of seats :* Replace the
plast ic cover cap .
(D Note
If you leave the child restraint with the
tether strap firmly installed for several
days, this could leave a mark on the up­
holstery on the seat cushion and backrest
in the area whe re the tether strap was in­
stalled. The uphols tery would a lso be per­
manently stretched around the tether
strap . This applies especially to leather
seats .
Using tether straps on rearward-facing
child restraints
Currently , few rear -facing child restraint sys­
tems come with a tether . P lease read and
heed the child restraint system manufactur­
e r's instructions caref ully to determine how to
p roperly insta ll the tethe r.
& WARNING
A child in a rearward -facing child safety
seat insta lled on the front passenger seat
w ill be seriously injured and can be ki lled if
the front a irbag inflates - even with an Ad­
vanced Airbag System.
- The inflating airbag will hit the child safety seat or infant carrier with great
force and w ill smash the ch ild safety seat
and child against the backrest, center
armrest, or door .
- A tight tether or other strap on a rear­
ward-facing child restra int attached to
the front passenger seat can put too much pressure on the weight-mat in the
seat and register a heavier weigh t in the
Advanced Airbag System. The heav ier weight registered can make the system
work as though an adult were on the seat
and deploy the Advanced Airbag when it must be suppressed causing ser ious or
even fatal injury to the ch ild.
- If you must install a rearward fac ing
child safety seat on the front passenger
seat because of exceptional c ircumstan­
ces and the
PASSENGER AIR BAG OFF
light does not come on and stay on, im­
mediately insta ll the rear-fac ing ch ild
safety seat in a rear seating position and have the airbag system inspected by your
Audi dea ler.
Additional Information
Sources of information about child
restraints and their use
T here are a number of sou rces of add itiona l
information about child restraint se lection, in ­
sta llation and use:
N HT SA advises that the best chi ld safety seat
is the one that fits your ch ild and fits in you r
vehicle, and that yo u will use correct ly and
consistently.
T ry before yo u buy!
U. S Nat ional Highw ay Traffi c Safety Admin ­
i s trat ion
Tel.: 1-888-327-4 236 (TIY: 1-800-424-9153)
http://www.nhtsa.gov
N ati onal SAFE KID S Camp aign
Tel.: (202) 662-0600
http://www.safekids .o rg
S af ety Belt Saf e U. S.A
T el.: (800) 7 45 -SAFE (Eng Lish)
Tel.: (800) 747-SANO (Span ish)
http://www.ca rseat.org
T ranspo rt Ca nad a Info rmation Centre
Tel.: 1-800 -333-0371 or call
1-613-998-8616 if you are in the Ottawa area
http://www.tc.gc.ca/eng/ roadsafety/
menu.htm
Aud i Cu stom er R elation s
Tel.: (800) 822-2834

226 Intellig ent technol ogy
The vehicle is then stabilized by the forces act­
ing on the whee l during braking. If the vehicle
is
oversteering (rear tends to sk id out of the
turn), the brakes are ma inly applied on the
wheel that is on the outside 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 whee l
that is on the ins ide of the curve or addit ional­
l y on the o ther wheels. An acoustic s ignal indi­
cates when ESC b rake app lication cuts in
¢ A .
The system operates across the entire speed
range in combination with the ABS system
¢ page 229. If the Anti-Lock Brake System
(ABS) malfunctions, the ESC wi ll be out of ac­
tion as well .
Activating
When you turn on the engine, ESC w ill auto­
mat ica lly be act ivated and will perform a se lf­
test. As soon as the test is comp leted, the sys­
tem is in normal operating mode.
Offroad mod e
ESC should normally be ope rated in normal
mode because this ensures maximum vehicle
stability. If necessary, you can act ivate the
ESC offroad mode by pressing the but to n
¢ fig . 232 to obtain maximum traction and
braking ability when driving
off paved roads at
l ow speeds. In ESC offroad mode, the indica­
tor light
Ii) ill uminates and the message Sta ­
b ilization control (E S C): Offr oad . Wa rning !
R estric te d stabilit y
appears br iefly in the dis­
p lay .
The ESC offroad mode can be useful in the fo l­
low ing except ional situations when slip or a
h ighly effective differential locking function is
des irable . Examp les:
- when driving with tire chains,
- when driving in deep snow or on loose
ground,
- when driving on uneven surfaces with the
whee ls severe ly unloaded (articulation), and
- when rocking the vehicle loose after it has
become stuck . When the
unusual situation is past, you
sho uld shift back to the norma l ESC operating
mode by pushing the button again . The mes­
sage
S ta b ilizat ion cont rol (ES C): O n then ap­
pears briefly in the display.
H ill desc ent control
The hill descent control is switched on in ESC
offroad mode . When slowly descending steep
gradients on loose ground or when the axles
are articulated, hill descent control provides ass istance by automatically apply ing the
brakes to keep vehicle speed constant. The ve ­
hicle is also rendered easier to steer by selec­
t ive d istr ibut ion of braking force. Hill descent
control intervenes when:
- the acce lerator 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
art iculation).
Hill descent contro l operates both d riving for­
ward and in reverse. Active hill descent con­
tro l is deactivated by pressing the accelerator
pedal until the condit ions for activation al­
ready listed are met again .
A WARNING
--
- The Electronic Stabilization Contro l is
neverthe less s ubject to the laws of phys­
ics. It is part icularly important to pay at­
tention to this fact on wet and slippe ry
roads . It i s therefore important that you
always adapt your dr iving to the cond i­
tion of the road and traffic conditions . Do
not a llow the increased safety provided
by the E lectronic Stabilization Contro l
system to lull you into accepting addi­
tional safety risks .
- Please be aware that in ESC offroad
mode, particularly on a smooth and s lip­
pe ry road, the wheels may have an in­
creased tendency to sp in and the vehicle
may b reak away - dange r of skidding!
~

-Stability is limited in the ESC offroad
mode.
Electronic differential lock (EDL)
The electronic differential lock monitors the
rotational speed of the drive wheels .
General notes
The electronic differentia l lock (EDL) helps the
car to start movi ng, accelerate and climb a
gradient on surfaces providing poor or almost
no grip. Without EDL, this would be difficult,
if not impossible.
H ow the system works
The ED L opera tes automatically. It monitors
the rotat iona l speed of wheels w ith the help
of the ABS sensors¢
page 229. If a noticea­
b le
slip is detected at the wheels (e .g. on slip ­
pery ground
on one side), the spinning 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 s ignal that wheel sp in is being
controlled.
Dri ving off
When driving off, always be sure to keep road
conditions in mind as you accelerate. If one
drive wheel spins because it is on a surface
w ith less gr ip, apply
plenty of throttle until
the car starts to move.
O verheating of br akes
To prevent the disc brake of the braked wheel
from overheating if subjected to excessive
loads on this wheel, the EDL cuts out tempo­
rarily . T he vehicle remains operational and be­
haves in the same way as a veh icle w ithout
E DL.
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 carefu l
when depressing the acce le rator pedal.
Int ellig ent technolog y 22 7
Even with the EDL working, the drive
wheels can spin and red uce your ab ility
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 driving style to
the road condit ions and traffic situation .
(D 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 .
General note s
The Anti-Slip Regu lation System (ASR) is inte­
grated in the Electronic Stabilization Control
(ESC). When the vehicle starts up and acceler­
ates, the wheels are prevented from spinning
by adjust ing the engine power to match the
amount of grip available from the road sur­
face .
How the sy stem works
ASR performs automat ically, i.e. without the
driver's intervention. With the aid of the ABS
sensors ¢
page 229, ASR monito rs the speed
of the dr iven wheels .
If the wheels start to
spin, engine torque is red uced automat ically
unt il the t ires find enough grip to lock onto
the ro ad surface. The system is active across
the entire speed range.
T he ASR works in conjunction with the ABS. If
a malfunc tion s hou ld occu r in the ABS, the
ASR wi ll also be out of act io n.
A WARNING ~
The increased safety affo rded by ASR does
not mean that you can take safety risks.
A lways adapt your driving sty le to the road
conditions and traffic situation.
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