Mercedes-Benz GLS Operator's Manual page 72

Driving safety systems
70
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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. The
engine output is also modified to keep the vehi-
cle on the desired course within physical limits.
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ESP assists the driver when pulling away on
wet or slippery roads. ESP
the vehicle during braking.
ETS/4ETS (Electronic Traction System)
4ETS traction control is part of ESP
Traction control brakes the drive wheels indi-
vidually 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. In addition, more drive torque is transfer-
red to the wheel or wheels with traction.
Traction control remains active, even if you
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deactivate ESP .
In appropriate driving situations, activate the
offroad program:
Vehicles without the Offroad Engineering
X
package ( page 219)
Y
Vehicles with the Off-Road Engineering pack-
X
age ( page 220)
Y
Off-road 4ETS (Electronic Traction Sys-
tem)
An ETS system specifically suited to off-road
terrain is activated automatically once an off-
road program is activated:
Vehicles without the Offroad Engineering
R
package ( page 219)
Y
Vehicles with the Off-Road Engineering pack-
R
age ( page 220)
Y
Important safety notes
G
WARNING
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If ESP is malfunctioning, ESP
stabilize the vehicle. Additionally, further driv-
ing safety systems are deactivated. This
increases the risk of skidding and an accident.
Drive on carefully. Have ESP
qualified specialist workshop.
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can also stabilize
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.
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is unable to
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checked at a
!
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
erwise destroy the brake system.
!
A function or performance test should only
be carried out on a two-axle dynamometer.
Before you operate the vehicle on such a
dynamometer, please consult a qualified
workshop. You could otherwise damage the
drive train or the brake system.
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ESP is only deactivated if the å warning
lamp is lit continuously.
If the ÷ warning lamp and the å warning
lamp are lit continuously, ESP
due to a malfunction.
Observe the information on warning lamps
( page 284) and display messages which may
Y
be shown in the instrument cluster
( page 249).
Y
i
Only use wheels with the recommended tire
sizes. Only then will ESP
Characteristics of ESP
General information
If the ÷ ESP warning lamp goes out before
beginning the journey, ESP
active.
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If ESP intervenes, the ÷ ESP
flashes in the instrument cluster.
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If ESP intervenes:
Do not deactivate ESP
X
stances.
Only depress the accelerator pedal as far as
X
necessary when pulling away.
Adapt your driving style to suit the prevailing
X
road and weather conditions.
ECO start/stop function
The ECO start/stop function switches the
engine off automatically when the vehicle stops
moving. The engine starts automatically when
the driver wants to pull away again. ESP
remains in its previously selected status, e.g. if
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ESP was deactivated before the engine was
automatically switched off.
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may oth-
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is not available
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function properly.
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is automatically
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warning lamp
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under any circum-
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