Mercedes-Benz M-Class 2015 Owners Manual - Manual (Page 75)

Off-road 4ETS (Electronic Traction Sys-
tem)
A 4ETS system specifically suited to off-road
terrain is activated automatically once the off-
road program is activated (
Y
page 251).
Important safety notes
G WARNING
If ESP ® is malfunctioning, ESP ® is unable to
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
® checked at a
qualified specialist workshop.
! 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
® may oth-
erwise destroy the brake system.
! Vehicles with 4MATIC: function or per-
formance tests may only be carried out on
a 2-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.
ESP ® is deactivated if the å warning lamp
in the instrument cluster lights up continu-
ously when the engine is running.
If the ÷ warning lamp and the å warn-
ing lamp are lit continuously, ESP ® is not
available due to a malfunction.
Observe the information on warning lamps
(
Y
page 323) and display messages which
may be shown in the instrument cluster
(
Y
page 285).
i Only use wheels with the recommended
tire sizes. Only then will ESP ® function
properly.
Characteristics of ESP ®
General information
If the ÷ ESP warning lamp goes out before
beginning the journey, ESP ® is automatically
active.
If ESP
® intervenes, the ÷ ESP ® warning
lamp flashes in the instrument cluster.
If ESP
® intervenes:
X Do not deactivate ESP ® under any circum-
stances.
X
Only depress the accelerator pedal as far as
necessary when pulling away.
X Adapt your driving style to suit the prevail-
ing 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 automati-
cally when the driver wants to pull away again.
ESP ® remains in its previously selected sta-
tus. Example: if ESP ® was deactivated before
the engine was switched off, ESP ® remains
deactivated when the engine is switched on
again.
Deactivating/activating ESP ®
Important safety notes
You can select between the following states
of ESP ® :
R ESP ® is activated.
R ESP ® is deactivated.
G WARNING
If you deactivate ESP ® , ESP ® no longer sta-
bilizes the vehicle. There is an increased risk
of skidding and an accident.
Only deactivate ESP
® in the situations descri-
bed in the following.
Driving safety systems
73
Safet
y
Z