Trailer Stabilization; Off-Road Esp - Mercedes-Benz 2011 M-Class Operator's Manual

Driving safety systems
68
traction control is still activated.
R
®
ESP still provides support when you
R
brake.
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If ESP is deactivated and one or more wheels
start to spin, the d warning lamp in the
instrument cluster flashes. In such situations,
®
ESP will not stabilize the vehicle.
X
To deactivate: press button :.
The d warning lamp in the instrument
cluster lights up.
G
Warning
When the d ESP
illuminated continuously, the ESP
switched off or is not operational due to a
malfunction. Vehicle stability in standard
driving maneuvers is reduced.
Adapt your speed and driving style to the
prevailing road conditions and to the non-
operating status of the ESP
! Avoid spinning a drive wheel for an
extended period with ESP switched off. This
could cause serious damage to the drive
train.
X
To activate: press button :.
The d warning lamp in the instrument
cluster goes out.
®

Off-road ESP

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An ESP system specifically suited to off-road
terrain is activated automatically once the off-
road drive program (
It intervenes with a delay if there is
®
warning lamp is
®
is
®
.
Y page 193) is activated.
oversteering or understeering, thus
improving traction.
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ESP

trailer stabilization

If your trailer begins to lurch, you can only
stabilize the vehicle/trailer combination by
depressing the brake firmly.
®
In this situation, ESP
detect if the trailer begins to lurch. ESP
slows the vehicle down by braking and
limiting the engine output until the vehicle/
trailer combination has stabilized.
Trailer stabilization is active from a speed
above 40 mph (65 km/h).
G
Warning!
The system will not be able to assist when the
trailer jackknifes
®
if the ESP has switched off due to a
R
malfunction
on wet or icy roads
R
on roads with slippery surface
R
in sand or gravel
R
Trailers with a high center of gravity may tip
over before the system recognizes swaying of
the trailer.
Trailer stabilization does not work if ESP
deactivated or disabled because of a
malfunction.
EBD
G
Warning
Observe "Important safety instructions"
Y
( page 65).
EBD monitors and controls the brake
pressure on the rear wheels to improve
driving stability while braking.
G
Warning!
If the EBD malfunctions, the brake system will
still function with full brake boost. However,
the rear wheels could lock up during
assists you and can
®
®
is