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MB Paul
MB Paul, Mercedes Technician
Category: Mercedes
Satisfied Customers: 4317
Experience:  Mercedes Benz Qualified Diagnostic Technician
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Merc 270 skl 55 reg Alarm & hazard warning lights keep

Customer Question

Merc 270 skl 55 reg Alarm & hazard warning lights keep coming on
Submitted: 4 years ago.
Category: Mercedes
Expert:  MB Paul replied 4 years ago.

Hi,

In the first instance you should have the vehicle checked on a diagnostic tool such as Mercedes STAR to see if any fault codes are stored and what the most recent alarm triggers have been.

The most common problem we see is with the alarm siren - this has its own tamper circuit inside & when it fails the alarm will be triggered. This will usually have fault codes stored or alarm triggers with the siren to confirm this.

If faulty the siren should be replaced.

Best regards, Paul