Where is the "Outside Temp" sensor located?

E90ice · 07-04-2007, 03:34 PM

For some reason my car registers 3-4F lower outside temp than other cars.

Any idea where the outside temp sensor is located or what could be wrong?

I remember when installing PROcede, you have to remove the temperature sensor as stated in the video. I'm affraid i messed up something.

Any help would be appreciated.

Nyulak · 07-04-2007, 06:09 PM

The first pic is the air temperature sensor that is removed during PROceed installation. The second pic shows the sensor being held by me.

E90ice · 07-05-2007, 01:52 AM

Thanks!

wj4 · 07-05-2007, 02:04 AM

It's not 100% accurate because it's located under the hood like pictured.

Same goes for most cars, I've noticed that the temp inside the car is a bit more exaggerated than what it should be.

e.n335 · 07-05-2007, 02:29 AM

Quote:

Originally Posted by Nyulak

The first pic is the air temperature sensor that is removed during PROceed installation. The second pic shows the sensor being held by me.

Your top black cover of the ECU is not correct in place. It should not rest on the hood gasket, push it towards the engine so that it's beside the gasket.

No biggie. Cheers, Eugen

Park2670 · 07-05-2007, 09:33 AM

The temp sensor is in the front bumper, I believe that sensor thats removed is the carbon sensor for auto recirculation.

Booster · 07-05-2007, 09:48 AM

The outside temp sensor is usually in front one of the front wheels. The right side if I remember correctly It plugs in to the air duct in front of the front wheels. At least that is where it is on old e46's and e39's... Most people rip off the duct when hitting concrete parking blocks and what not... It is a little probe type sensor....

Park2670 · 07-05-2007, 11:58 AM

Im pretty sure on the 335 its in front of the intercooler, Not sure on the others.

Nyulak · 07-05-2007, 01:40 PM

Thanx, I thought it looked odd!

Nyulak · 07-05-2007, 01:44 PM

Now it's fixed. Funny how somebody can see my mistakes through a photograph over the internet and I can't even remember how to put it back in its spot with the car right in front of me.

1clean335i · 07-05-2007, 02:09 PM

if you look through the lower middle opening on the front bumper towards the driver side you can see the temp sensor point down from the top of the opening... i can take a pic if you dont understand what im talking about...

Hokie 335i · 11-09-2007, 03:34 PM

Does anyone know the part number for the sensor that Nyulak is holding in his pic? The last time I removed it the little notches that hold it in place snapped off. I have tried supergluing them back on but I'd really like to replace the part if it's cheap and easy. Thanks.

Nyulak · 11-09-2007, 11:08 PM

I haven't a clue to the number, but you should be able to ask the parts department for a price of the outside temperature sensor. They should be able to track the part number down for you. Once you have the number, start calling around for the best price.

Billt335 · 02-19-2012, 02:04 AM

Looked for the sensor cause my car was reading -40, found it behind the center bumper grill on 08 e92. pain in the as$ to get to but got it and replaced!

PINeely · 02-19-2012, 08:19 AM

Quote:

Originally Posted by Nyulak

The first pic is the air temperature sensor that is removed during PROceed installation. The second pic shows the sensor being held by me.

That is not the temperature sensor. The temp sensor is located behind the front bumper near the intercooler opening. It looks like this:

http://www.turnermotorsport.com/p-45...ny-others.aspx

PINeely · 02-19-2012, 08:21 AM

Quote:

Originally Posted by Billt335

Looked for the sensor cause my car was reading -40, found it behind the center bumper grill on 08 e92. pain in the as$ to get to but got it and replaced!

I used to have a 530i that read -40 as well after I hit some tire tread

jennkent5454 · 03-11-2014, 06:51 PM

Here is where it is located on a 2007 335i

http://www.e90post.com/forums/showthread.php?t=953617

07tundra · 03-11-2014, 09:46 PM

Quote:

Originally Posted by Park2670

Im pretty sure on the 335 its in front of the intercooler, Not sure on the others.

YYYYUUUUUPPPPPPP

jimmyfuntime · 04-14-2019, 07:19 PM

removing the front bumper is a beast of a job for the $20 sensor replacement. Here is the shortcut:

locate the wire running into the bumper - it is located below the passenger side headlight and feeds into the inner shroud of the bumper. Now, mine was easy to identify because it was the only wire in that area with some slack (easy to slide wire in and out of bumper. Next (I am not a professional, proceed at your own risk) pull on the wire, with minimal force and it will separate from the harness.

You will now have two wires exposed at the end of a very long wire wrap. I bought the replacement sensor and plug ($25 on amazon), and soldered/assembled. The wires work in either terminal.

BTW, you will know you pulled out the right wires if you wrap them together and the reading on the dash is 122F.

The wire is long enough that I could run it all the way next to the cabin filter, which is giving me an accurate outside temperature within 2 degrees.

This fix is extremely easy, fast and cheap. I hope this saves some other people the trouble of removing a bumper for this cheap sensor.

07-04-2007, 03:34 PM	#1
E90ice Banned 205 Rep 2,002 Posts Drives: 2008 335xi Coupe Join Date: May 2006 Location: WA iTrader: (0)	Where is the "Outside Temp" sensor located? For some reason my car registers 3-4F lower outside temp than other cars. Any idea where the outside temp sensor is located or what could be wrong? I remember when installing PROcede, you have to remove the temperature sensor as stated in the video. I'm affraid i messed up something. Any help would be appreciated. __________________
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07-04-2007, 06:09 PM	#2
Nyulak Captain 29 Rep 957 Posts Drives: 2022 X3 M40i Join Date: Feb 2007 Location: SheffVill, OH iTrader: (4) Garage List 2009 BMW 535xi [10.00]	The first pic is the air temperature sensor that is removed during PROceed installation. The second pic shows the sensor being held by me. Attached Images
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07-05-2007, 01:52 AM	#3
E90ice Banned 205 Rep 2,002 Posts Drives: 2008 335xi Coupe Join Date: May 2006 Location: WA iTrader: (0)	Thanks! __________________
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07-05-2007, 02:04 AM	#4
wj4 Major General 335 Rep 7,719 Posts Drives: E90 manual 335i Join Date: Nov 2006 Location: Burbank, CA iTrader: (8)	It's not 100% accurate because it's located under the hood like pictured. Same goes for most cars, I've noticed that the temp inside the car is a bit more exaggerated than what it should be.
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07-05-2007, 09:33 AM	#6
Park2670 General 355 Rep 18,218 Posts Drives: Tesla Model 3 Join Date: Jan 2006 Location: UTAH iTrader: (8)	The temp sensor is in the front bumper, I believe that sensor thats removed is the carbon sensor for auto recirculation. __________________
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07-05-2007, 09:48 AM	#7
Booster Pave The Rainforest 269 Rep 1,197 Posts Drives: Wagon Join Date: Dec 2005 Location: Norfolk, VA iTrader: (33) Garage List 2007 335i Coupe [0.00]	The outside temp sensor is usually in front one of the front wheels. The right side if I remember correctly It plugs in to the air duct in front of the front wheels. At least that is where it is on old e46's and e39's... Most people rip off the duct when hitting concrete parking blocks and what not... It is a little probe type sensor.... __________________ Sold: 2015 Pyrite Brown M3 Sold: 2020 Sunset Orange M340i Xdrive Sold: 2021 Bluestone 540i Xdrive Msport
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07-05-2007, 11:58 AM	#8
Park2670 General 355 Rep 18,218 Posts Drives: Tesla Model 3 Join Date: Jan 2006 Location: UTAH iTrader: (8)	Im pretty sure on the 335 its in front of the intercooler, Not sure on the others.
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07-05-2007, 01:40 PM	#9
Nyulak Captain 29 Rep 957 Posts Drives: 2022 X3 M40i Join Date: Feb 2007 Location: SheffVill, OH iTrader: (4) Garage List 2009 BMW 535xi [10.00]	Thanx, I thought it looked odd!
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07-05-2007, 01:44 PM	#10
Nyulak Captain 29 Rep 957 Posts Drives: 2022 X3 M40i Join Date: Feb 2007 Location: SheffVill, OH iTrader: (4) Garage List 2009 BMW 535xi [10.00]	Now it's fixed. Funny how somebody can see my mistakes through a photograph over the internet and I can't even remember how to put it back in its spot with the car right in front of me.
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07-05-2007, 02:09 PM	#11
1clean335i Perf BMW mag issue 147, 159 414 Rep 6,803 Posts Drives: Project Estoril Join Date: Feb 2007 Location: Miami, FL iTrader: (31) Garage List 2013 335i M-sport [0.00] 2011 X5 xdrive35i M ... [0.00] 2009 335i M-sport [0.00] 07' 335i Sedan [0.00]	if you look through the lower middle opening on the front bumper towards the driver side you can see the temp sensor point down from the top of the opening... i can take a pic if you dont understand what im talking about... __________________ '13 Estoril Blue 335i M-sport *Don't PM me!* Message me here- http://www.facebook.com/ProjectEstoril
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11-09-2007, 03:34 PM	#12
Hokie 335i Private First Class 17 Rep 194 Posts Drives: F15 X5 50i M-Sport Join Date: Feb 2007 Location: DC Area iTrader: (1)	Does anyone know the part number for the sensor that Nyulak is holding in his pic? The last time I removed it the little notches that hold it in place snapped off. I have tried supergluing them back on but I'd really like to replace the part if it's cheap and easy. Thanks.
	Appreciate 0 Quote

11-09-2007, 11:08 PM	#13
Nyulak Captain 29 Rep 957 Posts Drives: 2022 X3 M40i Join Date: Feb 2007 Location: SheffVill, OH iTrader: (4) Garage List 2009 BMW 535xi [10.00]	I haven't a clue to the number, but you should be able to ask the parts department for a price of the outside temperature sensor. They should be able to track the part number down for you. Once you have the number, start calling around for the best price.
	Appreciate 0 Quote

02-19-2012, 02:04 AM	#14
Billt335 Private First Class 6 Rep 162 Posts Drives: Black 335i coupe FBO JB4/Meth Join Date: Jul 2011 Location: Orlando, FL iTrader: (1) Garage List 2008 BMW 335I [8.50]	Looked for the sensor cause my car was reading -40, found it behind the center bumper grill on 08 e92. pain in the as$ to get to but got it and replaced!
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03-11-2014, 06:51 PM	#17
jennkent5454 New Member 8 Rep 17 Posts Drives: 2007 BMW 335i Join Date: Feb 2014 Location: Austin TX iTrader: (0)	Here is where it is located on a 2007 335i http://www.e90post.com/forums/showthread.php?t=953617
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04-14-2019, 07:19 PM	#19
jimmyfuntime Registered 0 Rep 1 Posts Drives: E90 325is Join Date: Apr 2019 Location: home iTrader: (0)	-40/122 quick fix removing the front bumper is a beast of a job for the $20 sensor replacement. Here is the shortcut: locate the wire running into the bumper - it is located below the passenger side headlight and feeds into the inner shroud of the bumper. Now, mine was easy to identify because it was the only wire in that area with some slack (easy to slide wire in and out of bumper. Next (I am not a professional, proceed at your own risk) pull on the wire, with minimal force and it will separate from the harness. You will now have two wires exposed at the end of a very long wire wrap. I bought the replacement sensor and plug ($25 on amazon), and soldered/assembled. The wires work in either terminal. BTW, you will know you pulled out the right wires if you wrap them together and the reading on the dash is 122F. The wire is long enough that I could run it all the way next to the cabin filter, which is giving me an accurate outside temperature within 2 degrees. This fix is extremely easy, fast and cheap. I hope this saves some other people the trouble of removing a bumper for this cheap sensor.
	Appreciate 0 Quote