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Practical hints
What to do if …
Problem Possible cause Suggested solution
v The yellow ESP warning lamp
comes on and remains on while
driving.
You engaged the differential locks. The ABS,
ESP, BAS, EBB and 4-ETS are switched off.
̈ The driving systems will switch on
again after the differential locks have
been disengaged.
̈ Also note the messages in the multi-
function display (
୴ page 260).
The ESP is deactivated.
Risk of accident! Adapt your speed and driv-
ing to the prevailing road conditions.
̈ Turn the ESP back on (୴ page 81).
If the ESP cannot be turned back on, have
the system checked at an authorized
Mercedes-Benz Light Truck Center as
soon as possible.
The ESP is deactivated because of interrupt-
ed power supply. The ABS may still be opera-
tional. The ESP has to be synchronized.
̈ Note the messages in the multifunc-
tion display (
୴ page 260).
The ESP, ABS, BAS, EBB or 4-ETS has detect-
ed a malfunction. All driving systems are
switched off.
Risk of accident! Adapt your speed and driv-
ing to the prevailing road conditions.
̈ Note the messages in the multifunc-
tion display (
୴ page 260).