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ESP
®
(Electronic Stability Program)
General notes
i
Observe the "Important safety notes" sec-
tion (Y page 66).
ESP
®
monitors driving stability and traction, i.e.
power transmission between the tires 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 stabilize 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
®
can also stabilize
the vehicle during braking.
ETS/4ETS (Electronic Traction System)
ETS traction control is part of ESP
®
. On vehicles
with 4MATIC, 4ETS 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
deactivate ESP
®
.
In appropriate driving situations, activate the
off-road program:
X
Vehicles without the Offroad Engineering
package (Y page 215)
X
Vehicles with the Off-Road Engineering pack-
age (Y page 216)
Off-road 4ETS (Electronic Traction Sys-
tem)
An ETS system specifically suited to off-road
terrain is activated automatically once the off-
road program is activated:
R
Vehicles without the Offroad Engineering
package (Y page 215)
R
Vehicles with the Off-Road Engineering pack-
age (Y page 216)
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 igni-
tion.
Application of the brakes by ESP
®
may oth-
erwise destroy the brake system.
!
Vehicles with 4MATIC: function or perform-
ance 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 only deactivated if the å warning
lamp is lit continuously.
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 279) and display messages which may
be shown in the instrument cluster
(Y page 245).
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.
70
Driving safety systems
Safety
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