Question about 2001 BMW Z3
The alarm goes off on its own, it does not reset and last night it drained the battery which is now flat, the neighbours report that the alarm sounded for approx 1 hour on and off and the hazzards flashed for approx 2 hours. Recently the car was hit from behind, only skuff on bumper but could this have anything to do with problem. Is it possible to turn off the siren.
1. find the trunk (boot) sensor (plunger) and tape it in the down position.
2. recharge the battery.
3. close the trunk and rearm the alarm.
4. listen for the alarm to go off. if it does proceed to step 6. if not see step 5.
5. the travel is too large for this trunk sensor. must have been caused by the accident. you can build up the area with some velcro or tape where the plunger meets the metal to make the travel less, thus making the alarm system think the trunk is not opened when the trunk is closed. or this sensor was damaged by the accident which will to be replaced.
6. the trunk sensor is not the problem. untape it and proceed to the hood (bonnet) sensor. tape it down and repeat steps 1-4 for the hood sensor.
7. keep repeating on the other sensors (doors, fuel door) until you find the sensor causing the problem.
Posted on Jan 17, 2009
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Posted on Jan 02, 2017
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