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ESC
G
Observe Safety notes, see page 59.
The Electronic Stability Control (ESC) is
operational as soon as the engine is running.
It monitors the vehicle’s traction (force of
adhesive friction between the tires and the
road surface) and handling.
The ESC recognizes that the vehicle deviates
from the direction of travel as intended by the
driver. By applying brakes to individual
wheels and by limiting the engine output, the
ESC works to stabilize the vehicle. The ESC is
especially useful while driving off and on wet
or slippery road surfaces. The ESC also
stabilizes the vehicle during braking and
steering maneuvers.
The ESC warning lamp ä in the instrument
cluster comes on when you switch on the
ignition. It goes out when the engine is
running.
G
Warning!
Never switch off the ESC when you see the
ESC warning lamp ä flashing in the
instrument cluster. In this case proceed as
follows:
R
When driving off, apply as little throttle as
possible.
R
While driving, ease up on the accelerator
pedal.
R
Adapt your speed and driving style to the
prevailing road conditions.
Failure to observe these guidelines could
cause the vehicle to skid. The ESC cannot
prevent accidents resulting from excessive
speed.
!
Because the ESC operates automatically,
the engine and ignition must be shut off
(SmartKey in starter switch position 0 or
1 or KEYLESS-GO start/stop button in
position 0 or 1) when the parking brake is
being tested on a brake test dynamometer
or when the vehicle is being towed with one
axle raised.
Active braking action through the ESC may
otherwise seriously damage the brake
system which is not covered by the
Mercedes-Benz Limited Warranty.
!
The ESC will only function properly if you
use wheels of the recommended tire size
as specified in the “Technical data” section
of this Operator’s Manual.
i
The DISTRONIC PLUS and cruise control
switch off automatically when the ESC
engages.
Electronic Traction System (ETS)
G
Observe Safety notes, see page 59.
The ETS (Electronic Traction System) is a
component of the ESC. The ETS improves the
vehicle’s ability to utilize available traction,
especially under slippery road conditions by
applying the brakes to a spinning wheel.
When you switch off the ESC, the ETS is still
enabled.
Switching off the ESC
G
Warning!
The ESC should not be switched off during
normal driving other than in the
circumstances described below. Disabling
the system will reduce vehicle stability in
driving maneuvers.
Do not switch off the ESC when a spare wheel
is mounted.
To improve the vehicle’s traction, switch off
the ESC. This allows the drive wheels to spin
and thus cut into surfaces for better grip, for
example
R
when driving with snow chains
R
in deep snow
R
in sand or gravel
62
Driving safety systems
Safety and security
207_AKB; 2; 35, en-US
d2ureepe, Version: 2.11.8.1
2009-07-17T07:10:21+02:00 - Seite 62