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Safety and Security
Driving safety systems
Four wheel electronic traction system
(4MATIC) with the ESP
®
Models with all-wheel-drive only.
The 4MATIC improves vehicle’s ability to
use available traction, e.g. during winter
operation in mountains under snowy
conditions, by applying power to all four
wheels.
Warning! G
If you see the ESP
®
warning lamp v
flashing in the speedometer, proceed as fol-
lows:
ț While driving off, apply as little throttle
as possible
ț While driving, ease up on the accelera-
tor
ț Adapt your speed and driving style to
the prevailing road conditions
Failure to observe these guidelines could
cause the vehicle to skid.
The ESP
®
cannot prevent accidents result-
ing from excessive speed.
!
Do not tow with one axle raised.
Otherwise the transfer case can be
damaged, which is not covered by the
Mercedes-Benz Limited Warranty.
!
Performance testing must only be con-
ducted on a two-axle dynamometer.
Otherwise the transfer case can be
damaged, which is not covered by the
Mercedes-Benz Limited Warranty.
!
Because of the ESP
®
’s automatic
operation, the engine must be shut off
(SmartKey in starter switch position 0
or 1) when the parking brake is being
tested on a brake test dynamometer.
Active braking action through ESP
®
may otherwise seriously damage the
front or rear axle brake system.
Operational tests with the engine
running can only be conducted on a
two-axle dynamometer.
i
At highly demanding operating condi-
tions, the electronic traction system
may temporarily switch off to prevent
overheating of the drive wheel brakes.
The message
unavailable
See Operator’s Manual
will then
appear in the multifunction display
while the ESP
®
warning lamp v is
flashing. The ESP
®
is still functioning
normally.