Ets (Electronic Traction System); Off-Road 4Ets - Mercedes-Benz 2011 GL-Class Operator's Manual

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slippery roads. ESP
vehicle during braking.
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If ESP intervenes, the d warning lamp
flashes in the instrument cluster.
G
Warning
Never switch off the ESP
d warning lamp flashing in the instrument
cluster. In this case proceed as follows:
When driving off, apply as little throttle as
R
possible.
While driving, ease up on the accelerator
R
pedal.
Adapt your speed and driving style to the
R
prevailing road conditions.
Failure to observe these guidelines could
cause the vehicle to skid. The ESP
prevent accidents resulting from excessive
speed.
! Only operate the vehicle for a maximum
of ten seconds on a brake test
dynamometer. Switch off the ignition.
Application of the brakes by ESP
otherwise destroy the brake system.
! Function or performance tests may only
be performed on a 2-axle dynamometer. If
you wish to operate the vehicle on such a
dynamometer, please consult an
authorized Mercedes-Benz Center
beforehand. You could otherwise damage
the drive train or the brake system.
i Only use wheels with the recommended
tire sizes. Only then will ESP
properly.

4ETS (Electronic Traction System)

G
Warning
Observe "Important safety instructions"
Y
( page 65).
Traction control is part of ESP
Traction control brakes the drive wheels
individually if they spin. This enables you to
can also stabilize the
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when you see the
®
cannot
®
may
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function
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.
Driving safety systems
pull away and accelerate on slippery surfaces,
for example if the road surface is slippery on
one side. In addition, more drive torque is
transferred to the wheel or wheels with
traction.
Traction control remains active, even if you
®
deactivate ESP .
X
Activate the off-road drive program
Y
( page 204) or engage the LOW RANGE
Y
off-road gear ( page 157) if appropriate
for the driving conditions.
Off-road 4ETS (Electronic Traction
System)
A 4ETS system specifically suited to off-road
terrain is activated automatically if the off-
road drive program is activated
( Y page 204) or the LOW RANGE off-road
gear ( Y page 157) is selected.
Deactivating/activating ESP
G
Warning
®
The ESP should not be switched off during
normal driving other than in the
circumstances described below. Disabling
the system will reduce vehicle stability in
driving maneuvers.
Do not switch off the ESP
wheel is mounted.
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ESP is activated automatically when the
engine is running.
It may be best to deactivate ESP
following situations:
when using snow chains
R
in deep snow
R
on sand or gravel
R
G
Warning!
®
Activate ESP as soon as the situations
described above no longer apply. ESP
otherwise not be able to stabilize the vehicle
if the vehicle starts to skid or a wheel starts
to spin.
®
®
when a spare
®
in the
®
will
Z
67