Mercedes-Benz M-Class 2014 Owners Manual - Manual (Page 74)

Off-road 4ETS (Electronic Traction
System)
A 4ETS system specifically suited to off-road
terrain is activated automatically once the off-
road program is activated (
Y
page 248).
Important safety notes
G WARNING
If ESP ® is malfunctioning, ESP ® is unable to
stabilize the vehicle. Additionally, further
driving 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
otherwise destroy the brake system.
! Vehicles with 4MATIC: function or
performance 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
continuously when the engine is running.
If the ÷ warning lamp and the å
warning lamp are lit continuously, ESP ® is not
available due to a malfunction.
Observe the information on warning lamps
(
Y
page 321) and display messages which
may be shown in the instrument cluster
(
Y
page 283).
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
circumstances.
X Only depress the accelerator pedal as far
as necessary when pulling away.
X Adapt your driving style to suit the
prevailing 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. 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
stabilizes the vehicle. There is an increased
risk of skidding and an accident.
Only deactivate ESP
® in the situations
described in the following.
72
Driving safety systems
Safety