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Marty, Mercedes Technician
Category: Mercedes
Satisfied Customers: 53901
Experience:  Bosch Certified Master Tech. Over 35 years experience.
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Alarm started goin off but I can start the car? yes same

Customer Question

alarm started goin off but I can start the car?
JA: Have you tried locking and unlocking the driver's side door using the key itself?
Customer: yes same problem even disconected the battery, key fob kliks it on and off but it just happens again
JA: What is the model/year of your Mercedes?
Customer: SLK 320 95 plate
JA: Are you hoping to fix this yourself? What have you tried so far?
Customer: not much its outside my busines, had it go of a few weeks ago but now its persistant
JA: Anything else you think the mechanic should know?
Customer: brand new battery, it just started to play up
Submitted: 11 months ago.
Category: Mercedes
Expert:  Marty replied 11 months ago.

Hi, if the alarm goes off when you lock the car you will more than likely need to replace the alarm siren. Another possibility is a faulty PSE module in the trunk but when the module acts up the door locks usually do not work. If everything seems normal and the alarm just goes off after locking the car the problem will likely be a defective siren.

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