Mercedes-Benz M-Class Owner's Manual page 293

Warning and indicator lamps in the instrument cluster
290
Problem
!
The red indicator lamp
for the electric parking
brake flashes and/or
the yellow warning
lamp for the electric
parking brake lights up.
6
The red SRS warning
lamp is lit while the
engine is running.
Engine
Problem
;
The yellow engine diag-
nostics warning lamp
lights up while the
engine is running.
Possible causes/consequences and M Solutions
The electric parking brake is temporarily malfunctioning or is
defective.
Observe the additional display messages in the multifunction
X
display.
G
Risk of injury
The restraint systems are malfunctioning. The airbags or belt ten-
sioners may either be triggered unintentionally or, in the event of
an accident, may not be triggered at all.
Drive on carefully.
X
Visit a qualified specialist workshop immediately.
X
Possible causes/consequences and M Solutions
There may be a fault, for example:
in the engine management
R
in the fuel injection system
R
in the exhaust system
R
in the ignition system (for vehicles with petrol engines)
R
in the fuel system
R
The emission limit values may be exceeded and the engine may
be running in emergency mode.
Have the vehicle checked as soon as possible at a qualified
X
specialist workshop.
Vehicles with a diesel engine: the fuel tank has been run dry
( page 156).
Y
Start the engine three to four times after refuelling.
X
If the yellow engine diagnostics warning lamp goes out, emer-
gency running mode is cancelled. The vehicle need not be
checked.