What is that sensor by the ECU

ThatRWD · 08-18-2014, 11:05 AM

http://burgertuning.com/instructions/JB4PnP.pdf

Page 4, took my car to a shop to get it fixed, the locking mechanism is broken now. Trying to figure out what it is so I can order an other.

135Pats · 08-18-2014, 11:10 AM

Quote:

Originally Posted by ThatRWD

http://burgertuning.com/instructions/JB4PnP.pdf

Page 4, took my car to a shop to get it fixed, the locking mechanism is broken now. Trying to figure out what it is so I can order an other.

Can't recall exactly what it is but both of mine have been happily electrical taped out of the way for running on 3 years. So long as they're not just floating around in the engine bay I really wouldn't stress over that.

Whateva · 08-18-2014, 11:28 AM

I wondered the same. I'm not 100% , but I think they're ambient temperature sensors (I'm guessing).

Eat.Sleep.Race · 08-18-2014, 11:32 AM

outside temp sensor

GetSomeE92 · 08-18-2014, 12:04 PM

If you are referring to the sensor on the passenger side of the cowl, it is the sensor that detects odors for the auto re-circulate function of the A/C system.

The ambient temperature sensor is located in the front bumper.

2010 M Sport · 08-18-2014, 12:33 PM

Yeah- air quality sensors

08-18-2014, 12:39 PM

Word. It's an "air quality" (AUC) sensor.

Different car, same concept:
http://forums.bimmerforums.com/forum...the-uac-sensor

The temp sensor is in the front bumper.

007_e350 · 08-18-2014, 03:07 PM

Quote:

Originally Posted by GetSomeE92

If you are referring to the sensor on the passenger side of the cowl, it is the sensor that detects odors for the auto re-circulate function of the A/C system.

The ambient temperature sensor is located in the front bumper.

+1 ... that spots pretty warm for temp sensor to be at

Sgop335 · 08-18-2014, 07:01 PM

I wonder what the passenger side sensor on the cowl is. I still dont know how to get that off when i remove my cowl. Drivers side sensor no issue.

GetSomeE92 · 08-18-2014, 09:01 PM

Quote:

Originally Posted by Sgop335

I wonder what the passenger side sensor on the cowl is. I still dont know how to get that off when i remove my cowl. Drivers side sensor no issue.

Look at it with some light. You'll notice that there is a little circular slot in which part of the sensor clips into. Push it in with a small screwdriver while you easily rotate the sensor towards the front of the car and it'll come right out. This is the air quality sensor being discussed above in this thread.

The sensor on the driver's side is for the hood switch for the BMW factory alarm. If you don't have an alarm installed on your car, it is just pre-wired for it and the hood switch itself is not there.

08-18-2014, 11:05 AM	#1
ThatRWD Major 117 Rep 1,063 Posts Drives: 335i Join Date: Mar 2014 Location: Northern VA iTrader: (0)	What is that sensor by the ECU http://burgertuning.com/instructions/JB4PnP.pdf Page 4, took my car to a shop to get it fixed, the locking mechanism is broken now. Trying to figure out what it is so I can order an other.
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08-18-2014, 11:28 AM	#3
Whateva Banned 28 Rep 228 Posts Drives: 335i Join Date: Apr 2014 Location: La La Land iTrader: (0) Garage List 2008 335i [10.00]	I wondered the same. I'm not 100% , but I think they're ambient temperature sensors (I'm guessing).
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08-18-2014, 11:32 AM	#4
Eat.Sleep.Race Out Boosting... 248 Rep 3,987 Posts Drives: F30 335i M-Sport Join Date: Feb 2014 Location: Northern VA iTrader: (7)	outside temp sensor __________________ Alpine White M-Sport F30
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08-18-2014, 12:04 PM	#5
GetSomeE92 Major 36 Rep 1,176 Posts Drives: '09 Space Gray E92 Join Date: Mar 2011 Location: Miami, FL iTrader: (7)	If you are referring to the sensor on the passenger side of the cowl, it is the sensor that detects odors for the auto re-circulate function of the A/C system. The ambient temperature sensor is located in the front bumper. __________________ 335i Coupe, JB4 (G4, map 5) DCI and 40% E85 blend: 2009 BMW 335i Coupe: 12.173 @ 109.490 MPH
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08-18-2014, 12:33 PM	#6
2010 M Sport Banned 32 Rep 240 Posts Drives: 2010 M Sport Join Date: Nov 2013 Location: Florida iTrader: (5)	Yeah- air quality sensors
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08-18-2014, 12:39 PM	#7
FCobra94 Guest 0 Rep n/a Posts Drives:	Word. It's an "air quality" (AUC) sensor. Different car, same concept: http://forums.bimmerforums.com/forum...the-uac-sensor The temp sensor is in the front bumper.
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08-18-2014, 07:01 PM	#9
Sgop335 Colonel 669 Rep 2,080 Posts Drives: 07 335i e92, 08 535i Join Date: Jun 2014 Location: MD iTrader: (1)	I wonder what the passenger side sensor on the cowl is. I still dont know how to get that off when i remove my cowl. Drivers side sensor no issue.
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