Mercedes-Benz GLK-Class 2015 Owners Manual - Manual (Page 74)

It may be best to deactivate ESP ® in the fol-
lowing situations:
R when using snow chains
R in deep snow
R
on sand or gravel
i Activate ESP ® as soon as the situations
described above no longer apply. ESP ® will
otherwise not be able to stabilize the vehi-
cle if the vehicle starts to skid or a wheel
starts to spin.
! Avoid spinning the driven wheels for an
extended period with ESP ® deactivated.
You could otherwise damage the drivetrain.
Deactivating/activating ESP ®
X
To switch off: press button :.
The å ESP
® OFF warning lamp in the
instrument cluster lights up.
X To switch on: press button :.
The å ESP
® OFF warning lamp in the
instrument cluster goes out.
Characteristics when ESP ® is deactivated
If ESP ® is deactivated and one or more wheels
start to spin, the ÷ ESP ® warning lamp in
the instrument cluster does not flash. In such
situations, ESP ® will not stabilize the vehicle.
If you deactivate ESP ® :
R ESP ® no longer improves driving stability.
R engine torque is restricted to a limited
degree and the drive wheels are able to
spin.
The spinning of the wheels results in a cut-
ting action for better traction on loose sur-
faces.
R traction control is still activated.
R PRE-SAFE ® is no longer available, nor is it
activated if you brake firmly and ESP ®
intervenes.
R PRE-SAFE ® Brake is no longer available, it
is also not activated if you brake firmly and
ESP ® intervenes.
R ESP ® still provides support when you
brake.
ESP ® trailer stabilization
G WARNING
If road and weather conditions are poor,
trailer stabilization will not be able to prevent
the vehicle/trailer combination from swerv-
ing. Trailers with a high center of gravity can
tip over before ESP
® can detect this. There is
a risk of an accident.
Always adapt your driving style to the prevail-
ing road and weather conditions.
If your vehicle with trailer (vehicle/trailer
combination) begins to lurch, you can only
stabilize the vehicle/trailer combination by
depressing the brake firmly.
In this situation, ESP
® assists you and can
detect if the vehicle/trailer combination
begins to lurch. ESP ® slows the vehicle down
by braking and limiting the engine output until
the vehicle/trailer combination has stabi-
lized.
Trailer stabilization is active above speeds of
about 40 mph (65 km/h).
Trailer stabilization does not work if ESP
® is
deactivated because of a malfunction.
72
Driving safety systems
Safety