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MB Paul
MB Paul, Mercedes Technician
Category: Mercedes
Satisfied Customers: 4317
Experience:  Qualified Mercedes Benz Diagnostic Technician - 20+ years experience - Workshop Foreman for Mercedes
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Car alarm keeps going off could it be an in car sensor?

Resolved Question:

Car alarm keeps going off could it be an in car sensor?
Submitted: 4 years ago.
Category: Mercedes
Expert:  MB Paul replied 4 years ago.

MB Paul :

Hi, there are several possibilities that could be causing the alarm to go off & the first step in diagnosing the problem is to have the car checked for fault codes & too see what the most recent alarm triggers have been stored. A common problem for false alarms can be a faulty alarm siren - this has its own tamper circuit & when faulty can give false alarm triggers.

MB Paul :

If this is the case then there will usually be fault codes stored for the alarm siren or the most recent triggers will be with the siren

MB Paul :

There are of course many other possibilities which is why a diagnostic check should be carried out first

MB Paul :

Best regards, Paul

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