Alarm LED/Switch

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saddle bags
Joined: Sat 12 Jun, 2010 00:36
Posts: 25

  Z3 roadster 1.9
Location: Banbridge

Alarm LED/Switch

Post by saddle bags » Wed 02 Aug, 2017 23:04

guys I'm in need of the small circular LED light which doubles as a switch to disable the interior sensors, part number 82929401797

I've tried local dealer only to be told it's discontinued

I've just spent the past 2hrs trawling the net trying to find one, without any success

can any one help
Be Careful What You Ask For - You might just get it :)

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Robert T
Site Admin
Joined: Mon 12 Jun, 2006 11:35
Posts: 10004

  Z3 roadster 1.9
Location: Cheshire

Re: Alarm LED/Switch

Post by Robert T » Thu 03 Aug, 2017 00:01

Maplin don't seem to have much in that department, but RS Components have quite a selection. Would need to see the pinout, but I think it is a microswitch with a separate LED and possibly a common ground. If you are stuck to get an exact replacement, it should be possible to construct a replacement out of a separate LED and simple push button switch mounted into a switch blank.

Which part of yours has broken?

Cheers R.

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Arctic Silver '99 Z3 1.9 & Black '59 Frogeye 1275cc
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BladeRunner919
Joined: Fri 17 Feb, 2012 20:18
Posts: 2221

  Z3 roadster 1.9

Re: Alarm LED/Switch

Post by BladeRunner919 » Thu 03 Aug, 2017 10:23

Robert T wrote:
Thu 03 Aug, 2017 00:01
Would need to see the pinout, but I think it is a microswitch with a separate LED and possibly a common ground. If you are stuck to get an exact replacement, it should be possible to construct a replacement out of a separate LED and simple push button switch mounted into a switch blank.
That's correct. I recently installed a Z4 auto-dimming mirror in my Z3 and rewired the alarm led to use the one that sits under the mirror. To replicate the push-button function I installed a momentary contact button into the side of the housing that covers the mirror stalk. As you say, there are three wires from the alarm, one is a common earth, one is power to the led and one is the contact for the switch function.

saddle bags
Joined: Sat 12 Jun, 2010 00:36
Posts: 25

  Z3 roadster 1.9
Location: Banbridge

Re: Alarm LED/Switch

Post by saddle bags » Thu 03 Aug, 2017 21:21

great advice guys, looks like i'll have to go down the separate micro switch route
Be Careful What You Ask For - You might just get it :)

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