Strange wire hanging down after hard canyon runs

cali__n54 · 07-07-2020, 11:24 AM

When I got home this weekend after driving the Malibu canyons I noticed this wire hanging down from the drivers front side suspension area (photos attached). I was definitely not hanging there before however I have not noticed any difference in the cars handling/ performance. If somebody could help me identify this wire that would be great!! The car is a 2009 e90 335i xdrive.

iqraceworks · 07-07-2020, 11:27 AM

Do a little work.....take the tire/wheel off and see what's going on. Seems like a pretty simple issue to troubleshoot and repair.......

nicked8 · 07-07-2020, 11:29 AM

Looks like a brake pad wear sensor to me.

Volasko · 07-07-2020, 12:39 PM

That's a pad wear sensor. Essentially clips into the pad directly in a small slot and once your pad wears down enough it breaks the circuit running through it triggering the replace brake pad warning. I have my sensors all zip tied the control arms as I stare at my wheels enough to know when my pads are close to being done.

07-07-2020, 11:24 AM	#1
cali__n54 Private 8 Rep 60 Posts Drives: BMW 335i Join Date: Jun 2019 Location: San Diego iTrader: (0)	Strange wire hanging down after hard canyon runs When I got home this weekend after driving the Malibu canyons I noticed this wire hanging down from the drivers front side suspension area (photos attached). I was definitely not hanging there before however I have not noticed any difference in the cars handling/ performance. If somebody could help me identify this wire that would be great!! The car is a 2009 e90 335i xdrive. Attached Images
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07-07-2020, 11:27 AM	#2
iqraceworks Brigadier General 2001 Rep 3,731 Posts Drives: 2007 335i Join Date: Aug 2019 Location: Missouri iTrader: (0)	Do a little work.....take the tire/wheel off and see what's going on. Seems like a pretty simple issue to troubleshoot and repair.......
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07-07-2020, 11:29 AM	#3
nicked8 Private First Class 103 Rep 139 Posts Drives: 2013 E92 335i M-Sport xDrive Join Date: Aug 2019 Location: CT/NY iTrader: (0)	Looks like a brake pad wear sensor to me.
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07-07-2020, 12:39 PM	#4
Volasko Colonel 705 Rep 2,605 Posts Drives: 06 330i E90, 18 530xe G30 Join Date: Dec 2010 Location: Toronto iTrader: (2) Garage List 2018 BMW 530e M Sport [9.00] 2006 BMW E90 330i [8.28]	That's a pad wear sensor. Essentially clips into the pad directly in a small slot and once your pad wears down enough it breaks the circuit running through it triggering the replace brake pad warning. I have my sensors all zip tied the control arms as I stare at my wheels enough to know when my pads are close to being done.
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