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C240 Alarm goes off when locking the car

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Old Feb 15, 2009 | 08:23 AM
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mosinoi's Avatar
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Default C240 Alarm goes off when locking the car
When I lock the doors the anti theft alarm goes off. This started happening just yesterday (I have 39,000 miles on it). Therefore, I cannot lock the doors, unless I want to hear that alarm all day.

Has this happened to anyone else?
 
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Old Feb 16, 2009 | 08:25 AM
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could be a door jam switch or probably a bad alarm siren. alarm siren is behind your right front tire behind wheel well liner. or some electrcal problem . but the sirens are known to go bad.
 
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Old Feb 18, 2009 | 07:20 PM
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Thank you for your answer, chassis221!

Update: today is the first day that the alarm did not act up. Let's see how long it lasts.
 
Last edited by mosinoi; Feb 19, 2009 at 07:48 AM.
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