Owners Manual

If, taking tires, cargo load and gradient into
consideration, the surface driven on still
provides insufficient traction, you may
experience difficulties in pulling away despite
ASR.
Vehicles without steering wheel buttons:
the : indicator lamp in the instrument
cluster lights up when you switch on the
ignition. When the engine is running, it goes
out.
Activating/deactivating ASR
G
WARNING
ASR should not be switched off during normal
driving other than in the circumstances
described below. Deactivating the system will
reduce vehicle stability in driving maneuvers.
Do not switch off ASR when a spare wheel is
mounted.
ASR is activated automatically when the
engine is running.
It may be best to deactivate ASR in the
following situations:
R
when using snow chains
R
in deep snow
R
on sand or gravel
If you deactivate ASR:
R
the engine's torque is no longer limited and
the drive wheels can spin. The spinning of
the wheels results in a cutting action, which
provides better grip.
R
traction control remains active and the
brake system intervenes if a drive wheel
begins to spin, e.g. if only the side of the
road is slippery. The wheel will be braked
and traction increased under such
circumstances.
R
active brake intervention by ESP
®
to
increase driving stability remains active.
G
WARNING
Even with ASR deactivated, ESP
®
remains
active and continues to perform brake
interventions where this is necessary to
improve driving stability. The d warning
lamp flashes.
With ASR deactivated, there is an increased
risk of your vehicle's brake system
overheating and suffering damage due to
prolonged application. A hot brake system will
also result in increased stopping distance.
Therefore, only deactivate ASR when
absolutely necessary.
X
Press button :.
When ASR is deactivated, the d warning
lamp in the instrument cluster lights up.
ESP
®
(Electronic Stability Program)
G
WARNING
Observe "Important safety notes"
(Y page 49).
If ESP
®
detects that the vehicle is deviating
from the direction desired by the driver, one
or more wheels are braked to stabilize the
vehicle. If necessary, the engine output is also
modified. Thereby, the vehicle is kept on the
desired course, within physical limits. ESP
®
assists the driver when pulling away on wet
or slippery roads. ESP
®
can also stabilize the
vehicle during braking.
If ESP
®
intervenes, the d warning lamp
flashes in the instrument cluster.
Driving safety systems
51
Safety
Z