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Driving safety systems
76
®
ESP
monitors driving stability and traction, i.e.
power transmission between the tyres and the
road surface.
®
If ESP
detects that the vehicle is deviating from
the direction desired by the driver, one or more
wheels are braked to stabilise the vehicle. The
engine output is also modified to keep the vehi-
cle on the desired course within physical limits.
®
ESP
assists the driver when pulling away on
wet or slippery roads. ESP
the vehicle during braking.
ETS/4ETS (Electronic Traction System)
ETS traction control is part of ESP
with 4MATIC, 4ETS is a component 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 if you deactivate
®
ESP
.
In appropriate driving situations, activate the
off-road programs:
Vehicles without the Off-Road Engineering
X
package (
page 254)
Y
Vehicles with the Off-Road Engineering pack-
X
age (
page 254)
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 Off-Road Engineering
R
package (
page 254)
Y
Vehicles with the Off-Road Engineering pack-
R
age (
page 254)
Y
Important safety notes
G
WARNING
®
If ESP
is malfunctioning, ESP
stabilise the vehicle. In addition, other driving
safety systems are switched off. This increa-
ses the risk of skidding and an accident.
®
can also stabilise
®
. On vehicles
®
.
®
is unable to
Drive on carefully. Have ESP
qualified specialist workshop.
!
Only operate the vehicle for a maximum of
ten seconds on a brake 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 twin-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.
®
When ESP
is deactivated, the å ESP
warning lamp lights up 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 343) and display messages which may
Y
be shown in the instrument cluster
(
page 301).
Y
i
Only use wheels with the recommended tyre
sizes. Only then will ESP
Characteristics of ESP
General notes
If the ÷ ESP warning lamp goes out before
beginning the journey, ESP
active.
®
If ESP
intervenes, the ÷ ESP
flashes in the instrument cluster.
®
If ESP
intervenes:
Do not deactivate ESP
X
stances.
When pulling away, only depress the acceler-
X
ator pedal as far as is necessary.
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 if the vehicle stops
moving. When pulling away again, the engine
starts automatically. ESP
ously selected status. Example: if ESP
deactivated before the engine was switched off,
®
checked at a
®
may oth-
®
OFF
®
is not available
®
function properly.
®
®
is automatically
®
warning lamp
®
under any circum-
®
remains in its previ-
®
was
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