What is this, and where should it be mounted?

zhent · 12-16-2023, 03:53 PM

While refilling my washer fluid on my 2011 E91 this morning (leaking headlight washer) I noticed this under the cowl.

It's just laying up there and I'm sure it should be secured somewhere. I looked around for the part numbers on it, but haven't found anything. Can anyone tell me what it is and where it should be?

TiAgAu · 12-16-2023, 04:03 PM

Its not far from its home.

Tambohamilton · 12-16-2023, 05:04 PM

Looks like the locating lugs are broken off, sadly. You might need to zip tie it into the bracket.

It's the outside air quality (AUC) sensor. Your car's nose, essentially

Greyfox · 12-16-2023, 08:36 PM

First picture... in the hole facing toward the outside of the vehicle and definitely looking like it's missing plastic.

eljay · 12-19-2023, 09:43 AM

Use Velcro.

12-16-2023, 03:53 PM	#1
zhent New Member 68 Rep 21 Posts Drives: 2011 E91 Join Date: Oct 2023 Location: Austin, TX iTrader: (0)	What is this, and where should it be mounted? While refilling my washer fluid on my 2011 E91 this morning (leaking headlight washer) I noticed this under the cowl. It's just laying up there and I'm sure it should be secured somewhere. I looked around for the part numbers on it, but haven't found anything. Can anyone tell me what it is and where it should be?
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12-16-2023, 04:03 PM	#2
TiAgAu Lieutenant 150 Rep 435 Posts Drives: E92 335i Join Date: Aug 2018 Location: Australia iTrader: (0)	Its not far from its home. Attached Images
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12-16-2023, 05:04 PM	#3
Tambohamilton Brigadier General 3061 Rep 3,915 Posts Drives: E91 330d Join Date: Apr 2019 Location: Herefordshire iTrader: (0)	Looks like the locating lugs are broken off, sadly. You might need to zip tie it into the bracket. It's the outside air quality (AUC) sensor. Your car's nose, essentially
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12-16-2023, 08:36 PM	#4
Greyfox Colonel 1208 Rep 2,835 Posts Drives: 2007 328xi E91 - 330k+ (miles) Join Date: Feb 2014 Location: USA iTrader: (2)	First picture... in the hole facing toward the outside of the vehicle and definitely looking like it's missing plastic.
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12-19-2023, 09:43 AM	#5
eljay Colonel 1453 Rep 2,140 Posts Drives: ///M + E91 Join Date: Jun 2010 Location: NS iTrader: (1)	Use Velcro.
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