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BMW 3-Series (E90 E92) Forum
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What is this sensor?
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| 09-17-2024, 04:48 PM | #2 |
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Lieutenant Colonel
 
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seems to be a capped connection for the optional alarm switch under the hood.
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geek58.50 StradaRedlands6109.00 |
| 09-17-2024, 06:01 PM | #3 |
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Major
 
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Overdose is correct, that is the connector for the trunk switch for the factory alarm. Many cars are pre wired for the factory BMW alarm but no alarm is actually installed.
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| 09-17-2024, 07:46 PM | #4 |
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Brigadier General
 
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Drives: 330i, 135i
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Good to know as well. I was not aware of this. I only have it in my E88 and not in my e90. Thanks OP.
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| 09-17-2024, 10:25 PM | #5 |
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Brigadier General
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Garage List 2006 BMW 330i [8.25]
2009 BMW 328i Touri ... [8.00] 2013 BMW X5 35i [7.80] 2011 BMW 528i [8.70] 2006 Mazda3 [5.50] |
As above, your car is pre-wired for an alarm. A really good upgrade IMO!
This is the alarm switch you would need: https://www.ebay.com/itm/255438397050 It also needs a little bracket to hold it: https://www.fcpeuro.com/products/bmw...ch-61316932791 You would also need to get the siren, bracket, and dome sensor. All plug and play and then a little coding to activate! |
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lookalikehuuh925.50 |
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