I appear to have a problem with my MB alarm. There is no audible signal when any of the sensors are triggered. The hazard lights start to flash but that is it! Does any one know where the siren is located and if there is an on/off switch.
I had the same problem with the alarm on my slk had to have a new siren fitted on it. 220 pounds later job done, alarm unit only costs £60ish but didn't have time to do the job myself.
It is a W124 with a flip out key RCL hence I do not think it is dealer fitted. Is the alarm normaly fitted to a car's horn or does it have a seperate siren?
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