Mercedes-Benz 2009 R-Class Operator's Manual page 347

Problem
1 The red SRS indicator
lamp comes on while
driving.
G Warning!
In the event a malfunction of the SRS is indicated as outlined above, the SRS may not be operational.
For your safety, we strongly recommend that you contact an authorized Mercedes-Benz Center immediately to have the system checked.
Otherwise the SRS may not be activated when needed in an accident, which could result in serious or fatal injury, or it might deploy
unexpectedly and unnecessarily which could also result in injury.
Possible cause/consequence
There is a malfunction in the
restraint systems. The air bags or
Emergency Tensioning Devices
(ETDs) could deploy
unexpectedly or fail to activate in
an accident.
Suggested solutions
X
Drive with added caution to the nearest authorized Mercedes-Benz
Center.
Practical hints
What to do if ...
Z
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