Petergbless
New Registration
- Joined
- Apr 21, 2024
- Messages
- 1
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- 0
- Your Mercedes
- 2008
Hello…
How do I stop false alarm from my 2008 Mercedes Benz?
How do I stop false alarm from my 2008 Mercedes Benz?
False alarm
- Thread starter Petergbless
- Start date
Blobcat
Moderator
- Joined
- Feb 8, 2006
- Messages
- 39,122
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- 28,020
- Location
- Grange Moor
- Your Mercedes
- R171 SLK280, Smart R451, Land Rover 110 County SW, 997 C2S, R1250 GSA TE 40th, CBR600FP
- Moderator
- #2
Hello and welcome,
Check you’ve no bugs flying around in the car - then I’d check the alarm siren battery hasn’t leaked and failed
Check you’ve no bugs flying around in the car - then I’d check the alarm siren battery hasn’t leaked and failed
brandwooddixon
Senior Member
- Joined
- Jul 31, 2006
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- Location
- Wolverhampton
- Your Mercedes
- S63 Coupe 2014
Many things can trigger the alarm.
As @Blobcat mentions the alarm itself can fail and give erratic behaviour, otherwise try turning off the interior sensors and towaway protection to rule those areas out. Finally, if the alarm is okay, is the car suffering from low battery conditions? If your car has a battery drain somewhere this will trigger the alarm if it is too large. (I once had a unit that kept waking up on my car and this would trigger the alarm).
BTW it is possible to purchase replacement battery packs for these alarms, assuming that the old batteries haven't leaked and destroyed the PCB, it is a far quicker and cheaper fix than ordering a new alarm.
As @Blobcat mentions the alarm itself can fail and give erratic behaviour, otherwise try turning off the interior sensors and towaway protection to rule those areas out. Finally, if the alarm is okay, is the car suffering from low battery conditions? If your car has a battery drain somewhere this will trigger the alarm if it is too large. (I once had a unit that kept waking up on my car and this would trigger the alarm).
BTW it is possible to purchase replacement battery packs for these alarms, assuming that the old batteries haven't leaked and destroyed the PCB, it is a far quicker and cheaper fix than ordering a new alarm.
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