Mend > Car Alarm Systems

bmw e30 alarm wont shut off?

I have a 1987 BMW 325i. the alarm system is stuck on. I can open the car with the key. I can start the car and drive. The alarm is going off with the car running. Help!!

Scott
July 2007

BMW BMW E30 Security Systems, Car Alarm Systems Alarm Shut Open

i have the exact same prob at the mo after doing my head gasket and have had to run a constant live to my fuel pump. it works but i would like to be able to sort it out and i dont have the alarm key

lee astarcar@gmail.com
February 2009

I have disconnected the battery many times. Some one told me to jump the cables with a 30amp fuse while the battery was disconected. This didn't work. I pulled the alarm fuse. I driven the car around town. I put the fuse back in and the alarm is still on. I have used every key I have to unlock each door, and start the car while the alarm was on. Nothing has worked.

Scott
July 2007

You need to go through a test procedure for your system where you find which sensor caused the alarm to activate. Normally, on an alarm system on a car of this age, the bonnet switch is the usual culprit but you should be able to cancel the alarm anyway via the unlocking procedure or a keyfob. Have you tried disconnecting the power to it and then reconnecting?

Chris
July 2007