Ets/4Ets; Off-Road 4Ets - Mercedes-Benz 2011 M-Class Operator's Manual

Failure to observe these guidelines could
cause the vehicle to skid. The ESP
prevent accidents resulting from excessive
speed.
! Vehicles without 4MATIC: switch the
ignition off when:
the parking brake is being tested using a
R
dynamometer
the vehicle is being towed with the front/
R
rear axle raised
Application of the brakes by ESP
otherwise destroy the brake system.
! Vehicles with 4MATIC: 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.
! Vehicles with 4MATIC: function or
performance tests may only be carried out
on a 2-axle dynamometer. If you wish to
operate the vehicle on such a
dynamometer, please consult an
authorized Mercedes-Benz Center in
advance. 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.
ETS/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
pull away and accelerate on slippery surfaces,
for example if the road surface is slippery on
one side. On vehicles with 4MATIC, more
drive torque is also transferred to the wheel
or wheels with traction.
Traction control remains active if you
deactivate ESP
®
cannot
X
Switch on the off-road drive program if
appropriate for the driving conditions
( Y
Off-road 4ETS (vehicles with 4MATIC)
A 4ETS mode specifically suited to off-road
terrain is activated automatically once the off-
road drive program (
Deactivating/activating ESP
®
may
G
The ESP
normal driving other than in the
circumstances described below. Disabling
the system will reduce vehicle stability in
driving maneuvers.
®
may
Do not switch off the ESP
wheel is mounted.
ESP
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
®
function
G
Activate ESP
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.
If you deactivate ESP
®
.
ESP
R
the engine's torque is no longer limited and
R
the drive wheels can spin. The spinning of
the wheels results in a cutting action, which
provides better grip.
Driving safety systems
®
.
page 193).
Y
page 193) is activated.
Warning
®
should not be switched off during
®
is activated automatically when the
Warning!
®
as soon as the situations
®
:
®
no longer improves driving stability.
®
®
when a spare
®
in the
®
will
Z
67