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Activating
The ESP is automatically activated when the engine
is
started and it
performs a self-test. You can activate a deactivated ASR if required
by
pressing the
=>
page 184, fig.
132
button. When it is activated,
the message
ESP/ASR on
appears briefly in the display. Vehicles
with front -wheel drive a deactivated ASR automatically re-activates
itself at a speed of 40 mph (70 km/h).
Deactivating
You can deactivate the ASR
if
required by pressing the button (for
less than 3 seconds)
=>
page 184, fig.
132.
With the ASR deactivated,
the ESP check light comes on, see=> page
17.
The message
ASR off
appears in the display as well. On vehicles with front -wheel drive:
deactivation is possible only up
to
30 mph (50
km/h) for
safety
reasons. Vehicles with all-wheel drive
:
the ASR can be deactivated
at any speed.
The ASR should normally be activated all the time. Only in certain
exceptional situations when some slip is
desirable does it
make
sense to deactivate the ASR. Examples:
•
when driving with tire chains
•
when driving
in
deep snow or on loose
ground
and
•
when
rocking
the vehicle loose after it has
become
stuck.
When the abnormal situation
is
over, you should activate the ASR
again.
&
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
J
Tips
To
ensure that the ASR works properly, all four wheels must be fitted
with identical tires. Any differences in rolling radius of the tires can
Intelligent
technology
cause the system to reduce engine power when this is not desired.
See also
::::>
page 248, "New
tires
and replacing tires and wheels".
Rear spoiler
The
rear spoiler improves vehicle handling and enhances
driver control.
Fig. 133
Switch
for
rear spoiler
The rear spoiler deploys and
retracts.
Spoiler operation can
be
set
for automatic or manual operation
.
Automatic
mode
(normal
operation)
•
Automatic deployment
:
At a speed of about 75 mph (120 km/h),
the rear spoiler
deploys automatically.
•
Automatic retraction: When speed drops below about 50 mph
(80 km/h), the rear spoiler retracts automatically.
Manual
mode
•
Manual
deployment:
Tapping briefly on the switch
::::>
fig.
133
deploys the rear spoiler
.
•
Manual
retraction: At speeds up to about 10 mph (20 km/h),
retract the
rear
spoiler by pressing and holding the switch
::::>
fig.
133.
At speeds between
10
mph (20 km/h) and 75 mph (120
km/h), retract the rear spoiler by tapping on the switch=> fig.
133.
Vehicle care
I
I
irechnical data
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