Mercedes-Benz 2005 M-Class Operator's Manual page 260

Practical hints
What to do if ...
Problem
v
The yellow 4-ETS/ESP warning
lamp comes on steady while
driving.
v
The yellow 4-ETS/ESP warning
lamp flashes while driving.
258
Possible cause
The ESP is deactivated.
Risk of accident!
Adapt your speed and driving to the prevail-
ing road and weather conditions.
The ESP or 4-ETS has come into operation
because of detected traction loss in at least
one tire.
Suggested solution
Switch the ESP back on ( page 82).
If the ESP cannot be switched back on,
have the system checked at an autho-
rized Mercedes-Benz Light Truck Center
as soon as possible.
During take-off, apply as little throttle
as possible.
While driving, ease up on the accele-
rator.
Adapt your speed and driving to the
prevailing road and weather condi-
tions.
Do not deactivate the ESP.
Exceptions: ( page 81).
Failure to follow these instructions in-
creases the risk of accidents.