Where is the alarm box?

[asmagal]

I have a 1994 520i which I purchased secondhand.
The alarm doesn't work and I'm looking to find the
alarm ECU box inside the car.
This is, probably, a dumb question...but:
-Where is the alarm box?
Thanks for any clue.

[uscharalph]

I have a 1994 520i which I purchased secondhand.
The alarm doesn't work and I'm looking to find the
alarm ECU box inside the car.
This is, probably, a dumb question...but:
-Where is the alarm box?
Thanks for any clue.

Probably under the back seat.

[asmagal]

No, it isn't. Under the back seat there are only:

-The Battery;
-The Grundmodul GM;
-The Relay Module RM;
-The Air Bag Module.

[uscharalph]

No, it isn't. Under the back seat there are only:

-The Battery;
-The Grundmodul GM;
-The Relay Module RM;
-The Air Bag Module.

Are you sure you have one?

[uscharalph]

If you have one is it the BMW alarm or aftermarket?

[shragon]

if you have a stock alarm, the brain is located under the rear seat on the drivers side.