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Old 05-13-2011, 01:21 PM   #1
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Join Date: Feb 2011
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Question Trunk Release (kill switch)

Hey guys,
Still learning about my '06 M3 Cabrio and noticed that the pressure switch on the trunk does not work. On my roadster, there is a hidden "kill switch" to disable that pressure switch so that Joe Blow can't walk by and open your trunk. Does my M3 have that as well?

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Old 05-14-2011, 08:40 AM   #2
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I believe when you lock the doors this disables the pressure switch on the trunk.
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Old 05-14-2011, 10:44 AM   #3
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I think this is a not uncommon problem with our cars. Mine hasn't worked since I bought the car. I have the same issue with my X5. I just use the key remote to unlock.


2001 M3 Convertible, Carbon Black - Daily Driver
2007 328i Convertible, Atlantic Blue - Wife's car
2003 X5 4.4i - Grocery-getter
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Old 05-15-2011, 09:51 PM   #4
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The pressure switch works when the car is fully unlocked (both doors not just driver), AND the glovebox is also unlocked. Otherwise it is disabled.

One cause for the pressure switch not working properly is the infamous wire loom running from the trunk lid to the car body. The constant opening and closing actually folds the wires until they break. Check 'em out.
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Old 05-17-2011, 08:25 AM   #5
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Will do, thanks!

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