Engine, On-board computer and displays – Mercedes-Benz 2013 GLS Class User Manual
Page 302

Problem
Possible causes/consequences and M Solutions
J
The red brake system
warning lamp comes on
while the vehicle is
moving. A warning tone
also sounds.
You are driving with the parking brake applied.
X
Release the parking brake.
The warning lamp goes out and the warning tone ceases.
6
The red SRS warning
lamp is lit while the
engine is running.
There is a malfunction in SRS (Supplemental Restraint System).
G
WARNING
The airbags or belt tensioners may either be triggered uninten-
tionally or, in the event of an accident, may not be triggered.
This poses an increased risk of injury.
X
Drive on carefully.
X
Have SRS checked at a qualified specialist workshop immedi-
ately.
For further information about the Supplemental Restraint System;
see (
Engine
Problem
Possible causes/consequences and M Solutions
;
The yellow engine diag-
nostics warning lamp
lights up while the
engine is running.
There may be a fault, for example:
R
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
The emission limit values may be exceeded and the engine may
be running in emergency mode.
X
Have the vehicle checked as soon as possible at a qualified
specialist workshop.
Vehicles with a diesel engine: the fuel tank has been run dry
(
X
Start the engine three to four times after refuelling.
If the yellow engine diagnostics warning lamp goes out, emer-
gency running mode is cancelled. The vehicle need not be
checked.
300
Warning and indicator lamps in the instrument cluster
On-board computer and displays