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E46 Convertible
The E46 vert forum. Talk about dropping your E46 top here.

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Old 11-25-2013, 05:32 AM   #1
Antti
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E46 convertible with factory alarm system, should there be ultrasound sensor?

Hi
I have 2004 330ci euro convertible. I lowered top & windows and closed doors from key button. Alarm led flashes and tilt sensor triggers alarm ok. If i reach in the car and wave my hands nothing happens. Is that normal? Is there ultrasound sensor?
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Old 11-25-2013, 04:10 PM   #2
vilseck21
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Not in the vert, that's why the verts OEM add on alarm kit is cheaper. I know because I did mine since the cheap ass that bought it new did not buy it with it

Last edited by vilseck21; 11-25-2013 at 04:10 PM.
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Old 11-25-2013, 11:49 PM   #3
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Not in the vert, that's why the verts OEM add on alarm kit is cheaper. I know because I did mine since the cheap ass that bought it new did not buy it with it
So the only function is tiltsensor to avoid stealing wheels from the car?
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Old 11-26-2013, 12:38 AM   #4
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E46 convertible with factory alarm system, should there be ultrasound sensor?

You can add an aftermarket shock sensor.
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Old 11-26-2013, 09:12 AM   #5
E46-Cabrio
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Well, I have the OEM (Newer Version) alarm system with 2 motion sensors, one in the front under the center console (cupholders) and the other at the back of the center console. (and ofcourse the other sensors/switches)

Added 2 .pdf files with old alarm and newer alarm version.
Attached Files
File Type: pdf Convertible Alarm Retrofit.pdf (220.2 KB, 112 views)
File Type: pdf Convertible Alarm Retrofit (Newer Version).pdf (419.3 KB, 130 views)

Last edited by E46-Cabrio; 11-27-2013 at 04:45 PM.
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Old 11-26-2013, 03:15 PM   #6
E46DrEaMeR
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my 02 vert has a OEM motion sensor fitted
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Old 11-27-2013, 10:45 AM   #7
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Yeah a vert oem alarm should include a motion sensor. At least one mounted behind the center console if not another up near the dash.
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Old 11-27-2013, 12:54 PM   #8
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i added two aftermarket shock sensors and a motion sensor to the OEM alarm. it's not hard to do and completely worth it. i was going to add a glass break sensor as well but i got lazy haha.
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Old 11-27-2013, 03:49 PM   #9
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Originally Posted by E46-Cabrio View Post
Well, I have the OEM (Newer Version) alarm system with 2 motion sensors, one in the front under the center console (cupholders) and the other at the back of the center console. (and ofcourse the other sensors/switches)

Added 2 .pdf files with old alarm and newer alarm version.
I stand corrected, I have a 2002 so the internal sensors are not an option for me
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Old 01-04-2015, 02:46 PM   #10
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Pardon my ignorance, but I'm a bimmer newbie and I just bought my '06 e46 vert and I can't tell if I actually HAVE an alarm system. I mean nothing chirps when I lock the car with top up OR down. There is a flashing red light on my business radio system when the vehicle is locked, but no flashing light on my clown nose. How do I tell if I have an alarm system? thanks...
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Old 01-04-2015, 04:35 PM   #11
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Originally Posted by ooeybc View Post
Pardon my ignorance, but I'm a bimmer newbie and I just bought my '06 e46 vert and I can't tell if I actually HAVE an alarm system. I mean nothing chirps when I lock the car with top up OR down. There is a flashing red light on my business radio system when the vehicle is locked, but no flashing light on my clown nose. How do I tell if I have an alarm system? thanks...
None of the North American delivered E46 had a factory alarm, they only were prewired for the alarm.

The 2006 alarm kit is about $450, you have to cut the rear of the console and add a color matched extension to the console, not hard to do.

Then you will have to have the alarm coded, you could buy BMW Scanner 1.4.0 from Amazon for about $30.
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Old 01-04-2015, 10:29 PM   #12
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Thanks. What do you mean by a "color matched extension"?
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Old 01-05-2015, 12:09 PM   #13
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Okay, belay that. I found out the extension is another part needed, and comes in gray, black and beige.
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Old 01-05-2015, 11:21 PM   #14
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I bought the after market for my 01 m3 on ebay for like $100.. came with a siren that goes in the engine bay and a tilt sensor in the trunk behind the carpeting above the battery. You still have to have the dealer activate the clown nose and blinkers (tied to central locking system.) No motion sensor but I can set it off by locking it and reaching in and trying to open with the inside door handle from outside of the car.

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Old 01-05-2015, 11:28 PM   #15
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thanks.
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