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379
Practical hints
What to do if …?
Problem Possible cause/consequence Suggested solution
± The yellow engine malfunc-
tion indicator lamp comes
on while driving.
A loss of pressure has been detected in the
fuel system. The fuel cap may not be closed
properly or the fuel system may be leaky.
̈ Check the fuel cap.
If it is not closed properly:
̈ Close the fuel cap.
If it is closed properly:
̈ Have the fuel system checked at an au-
thorized Mercedes-Benz Center.
v The yellow ESP
®
warning
lamp comes on while the
engine is running.
The ESP
®
has been switched off with the
ESP
®
switch or has been switched off due
to a malfunction.
Risk of accident!
When the ESP
®
is switched off it will not
stabilize the vehicle if the system recogniz-
es that the vehicle starts to skid or that a
wheel is spinning.
The cruise control is deactivated and can-
not be switched on.
̈ Switch the ESP
®
back on (୴ page 64).
Exceptions: (
୴ page 63).
̈ If leaving the ESP
®
switched off, adapt
your speed and driving to the prevailing
road, weather and traffic conditions.
If the ESP
®
cannot be switched on:
̈ Continue driving with added caution.
̈ Observer additional messages that may
appear in the multifunction display
(
୴ page 389).
̈ Have the system checked at an
authorized Mercedes-Benz Center as
soon as possible.