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Re: E46 323i Alarm System (Self Installation) (archive)

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Posted by John on November 13, 1998 at 16:50:01:

In Reply to: Re: E46 323i Alarm System posted by Eric on November 13, 1998 at 14:05:42:

: DAT, did you buy and install the alarm yourself? What all does installation entail?

I'm not DAT, but I did install the alarm system. Very easy to do. Consists of 3 main elements: An alarm horn, a motion sensor, and a tilt sensor.

The motion sensor fits inside the platic housing on the roof of the cabin--no tools require. The tilt sensor fits on the right side of the trunk, inside the trunk wall liner. You will need an 11 MM socket set or wrench for this.

The most difficult part is installing the horn, but it really isn't hard either. You will need a #30 TORX screwdriver, available at any well stocked auto supply house, and an 11MM wrench. You have to remove the inside air filter tray and a secondary firewall made of some composite material. Both come out and go back in fairly easily after you mount the alarm horn.

All is prewired, so no electrical knowledge is necessary.

After you are done, you'll have to have your BMW service department initialize and program your car's computer with their DIS programmer--the one part of the installation you won't be able to do yourself. This is about a 15 minute job if that, but my dealer still nicked me $60 bucks to do it.

This same dealer quoted me the total system installed for $695!!

What is in the alarm kit, if you were to buy the parts in volume, probably would cost less than $50. I can't believe that BMW forces you to pay extra. A car that price should have an alarm system as standard equipment. Far more sophisticated after market alarms cost a fraction of the price they quoted me.

I went with the OEM alarm because I wanted it to integrate with the car's remote entry system.

But I'm happy I didn't let the dealer snow me and hose me.


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