Light alarm and locked rear doors and boot

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TomDP

New Member
Joined
Nov 16, 2013
Messages
1
Car
C270Elegance Estate
Recently my alarm for leaving headlights on has stopped working. Similarly when I gat out after a drive the rear doors and boot remain locked. My local garage blames "age". Car is a '53 C270 CDI Estate.
 
Welcome!

I suggest changing your garage to one that can be bothered to investigate properly !

A Star diagnostic is the only way to diagnose multiple issues like this although it sounds like a problem with one of the SAM units (Signal Acquisition Modules) that generate and pass on control signals via the car's data network.

Just to check, the headlights are not switched to "Automatic" are they? In this mode there is no lights on alarm.

Have you a MB specialist nearby?
 
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