E46Fanatics - View Single Post - $5 Alternative for Lock beep
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Old 09-18-2012, 12:53 PM   #271
Registered User
Join Date: Aug 2012
Location: Toronto
Posts: 131
My Ride: E46 325ci
I installed a piezo buzzer (instead of a siren, since I couldn't find one in Canada) and after locking or unlocking the buzzer gives off a faint high pitch tone. After a minute or two it stops.

The tone starts again in several scenarios:
- when a door/trunk/hood is opened/closed
- when a door/trunk/hood is left open it is continuous until you shut it
- when you unlock/lock another bmw (seems to be linked to the signal receiving end of the lock radio)
- and possibly when you drive the car ( i heard it only sometimes but the sound is very faint)

Anyone else notice this?

Wonder if its a result of using a buzzer instead of a siren.
Hovs13 is offline   Reply With Quote