What does this device do?

roryhw · 10-27-2007, 08:30 AM

This is my first post on this forum. Been a long time reader but only recently registered and posted pics of my 330i. Hello Everyone!

I have been wondering what the device highlighted in the photo does. This pic is taken of the boot (trunk for you Americans) of my E90 with the floor removed.

I know the other device in this pic is for bluetooth but the other???

Any ideas?

tintivilus · 10-27-2007, 09:48 PM

My wild-ass guess was that it's a yaw sensor (specifically, an accelerometer parallel to the rear axle) for the traction control system based on its location and orientation. I can't find a shred of info on RealOEM to back up that hunch, though.

If you can find a part number on it, you could probably get a description from RealOEM... or you could unplug it and see what kind of error you get when you start the car

10-27-2007, 08:30 AM	#1
roryhw Rory 33 Rep 37 Posts Drives: 2024 X5 M60i Join Date: Oct 2007 Location: Seattle, WA iTrader: (0)	What does this device do? This is my first post on this forum. Been a long time reader but only recently registered and posted pics of my 330i. Hello Everyone! I have been wondering what the device highlighted in the photo does. This pic is taken of the boot (trunk for you Americans) of my E90 with the floor removed. I know the other device in this pic is for bluetooth but the other??? Any ideas? Attached Images
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10-27-2007, 09:48 PM	#2
tintivilus Lieutenant Colonel 26 Rep 1,826 Posts Drives: E92 335i Join Date: Sep 2006 Location: Lake County, IL iTrader: (0) Garage List 2007 E92 335i [0.00] 2003 325i [0.00]	My wild-ass guess was that it's a yaw sensor (specifically, an accelerometer parallel to the rear axle) for the traction control system based on its location and orientation. I can't find a shred of info on RealOEM to back up that hunch, though. If you can find a part number on it, you could probably get a description from RealOEM... or you could unplug it and see what kind of error you get when you start the car
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