Alarm problem

[healeyneil]

So, having just got my air on fixed and locking working off the key fob, the alarm seems to randomly go off - not straight away, but 5 minutes or 30 minutes after locking. Roof is up etc. Any thoughts please ?
Neil

 

[AldridgeZ4]

Try disconnecting the bonnet alarm switch. It's at the back of the engine bay, in the middle. If it cures your problem, they are about 35 quid from BMW.

 

[healeyneil]

Thanks. I'll try that

 

[mr nurburgring]

My bonnet switch was acting up, you can actually take the switch apart and clean the contacts, mine had a fine white oxidation on them. Some light sandpaper is all that’s needed to clean the contacts.

Works fine now.

 

[buzyg]

My bonnet switch was acting up, you can actually take the switch apart and clean the contacts, mine had a fine white oxidation on them. Some light sandpaper is all that’s needed to clean the contacts.

Works fine now.

That's worth knowing

 

[healeyneil]

A win again for the forum ! Thanks guys. Underbonnet switch is off the car now for future cleaning, and the alarm isnt sounding.