ment display after starting the engine, ABS may
be impaired or inoperative.
If ABS intervenes, you will feel a pulsing in the
brake pedal. The pulsating brake pedal may be an
indication of hazardous road conditions and func‐
tions as a reminder to take extra care while driv‐
ing.
If ABS intervenes: keep the brake pedal firmly
depressed until the braking situation has passed.
To carry out maximum full-stop braking:
depress the brake pedal with full force.
Function of BAS (Brake Assist System)
&
WARNING Risk of an accident caused by
a malfunction in BAS (Brake Assist Sys‐
tem)
If BAS is malfunctioning, the braking distance
in an emergency braking situation is
increased.
#
Depress the brake pedal with full force
in emergency braking situations. ABS
prevents the wheels from locking.
BAS supports you with additional braking force in
an emergency braking situation.
If you depress the brake pedal quickly, BAS is
activated:
R
BAS automatically boosts the braking force of
the brakes
R
BAS can shorten the braking distance
R
ABS prevents the wheels from locking
When you release the brake pedal, the brakes
function as usual again. BAS is deactivated.
Functions of ASR (Acceleration Skid Control)
ASR can neither reduce the risk of an accident
nor override the laws of physics if the driver does
not pay attention when pulling away or accelerat‐
ing. ASR is only an aid. Always adapt your driving
style to suit the prevailing road and weather con‐
ditions.
If you activate or deactivate the all-wheel drive in
a vehicle with this option, ASR will be deactivated
for the duration of the activation/deactivation
process.
Vehicles without steering wheel buttons: if
ASR is malfunctioning, the
÷
indicator lamp
lights up while the engine is running and the
engine output may be reduced (
/
page 27).
ASR improves traction, i.e. the transfer of power
from the tyres to the road surface, for a sus‐
tained period and, thereby, also improves the
driving stability of the vehicle. If the driving
wheels start to spin, ASR brakes individual drive
wheels and limits the engine torque. ASR thus
significantly assists you when pulling away and
accelerating, especially on wet or slippery roads.
If traction on the road surface is not sufficient,
even ASR will not allow you to pull away without
difficulty. The type of tyres and total weight of the
vehicle as well as the gradient of the road also
play a crucial role.
If ASR intervenes, the
÷
warning lamp in the
instrument display flashes.
Functions of ESP
®
(Electronic Stability Pro‐
gram)
&
WARNING Risk of skidding if ESP
®
is
malfunctioning
If ESP
®
is malfunctioning, ESP
®
cannot carry
out vehicle stabilisation. In addition, other
driving safety systems are switched off.
#
Drive on carefully.
#
Have ESP
®
checked at a qualified spe‐
cialist workshop.
&
WARNING Risk of skidding if ESP
®
is
deactivated
If you deactivate ESP
®
, ESP
®
cannot carry out
vehicle stabilisation.
#
ESP
®
should only be deactivated in the
following situations.
Do not operate the vehicle on a roller dynamome‐
ter (e.g. for a performance test). If you have to
operate the vehicle on a roller dynamometer, con‐
sult a qualified specialist workshop beforehand.
If you activate or deactivate the all-wheel drive in
a vehicle with this option, ESP
®
will be deactiva‐
ted for the duration of the activation/deactiva‐
tion process.
If ESP
®
is malfunctioning or deactivated, the
÷
warning lamp lights up while the engine is
running and the engine output may be reduced
(
/
page 27).
Driving and parking 153
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Страница 9: ...Windscreen wipers 97 Rear window wiper 97 At a glance Cockpit 7...
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