What is the round rubber bit for?

immx · 04-14-2014, 05:05 PM

This has been bugging me since I got my car, below the LHS temp control, there is a small round rubber thing. Does anyone know what it's for or why it's there?

P.s. I nicked the image off another forum, so thanks to whoever owns it!

jadnashuanh · 04-14-2014, 05:47 PM

I think you'll find that it is a temperature sensor. Some have noticed that it isn't placed all that well since you may have a hot cup of coffee or a cold drink sitting right in front of it. The Germans don't tend to drink in their cars as much, and use them for driving, so it probably doesn't matter much. Maybe a room-temp bottle of water, which wouldn't affect it too much.

remmib · 04-14-2014, 06:00 PM

I've been wondering the same thing, and temp sensor might be a good guess.

AP · 04-15-2014, 06:03 AM

if it was a temperature sensor, wouldn't there be two? one fo the left hand side , and one for the right hand side?

immx · 04-15-2014, 03:04 PM

Good point! Hmmmmm?????

dippo · 04-15-2014, 03:09 PM

They would be a bit close together if they were temperature sensors; there wouldn't be much difference between the two.

CmdllbF11 · 04-15-2014, 03:40 PM

No 'sensor' here on the F11 ('10) 520d SE.

jamiesecker · 04-15-2014, 05:32 PM

I thought as mentioned a temp sensor as same as in my previous M3.

remmib · 04-16-2014, 05:04 AM

BTW, is that the basic clima control, mine look like this.

AP · 04-16-2014, 05:50 AM

is it to cover a screw possibly?

makes me wonder where the temperature sensors actually though?

xenon · 04-16-2014, 06:07 AM

It is the temperature sensor. It used to be behind the little "grille" and now it isn't.

xd · 04-16-2014, 09:07 AM

+1 for internal temp sensor

Solar and condensation sensor is tucked-up in the mirror housing.

SpeedTrip · 04-16-2014, 09:44 AM

so how is the left / right temp differential managed with one sensor ?

xenon · 04-16-2014, 10:06 AM

It isn't, at least, not properly. How could you have an accurate temperature differential in such a small space without a physical divide? All the two settings do is to give a bias.

SpeedTrip · 04-16-2014, 10:26 AM

Well obviously you couldnt - and the word 'accurate' is yours, not mine ..... nevertheless, there is a difference !

xenon · 04-16-2014, 10:29 AM

yes because of the bias. If you have one side set higher then the other the blending flaps will distribute warmer air onto that side but it's only ever controlled by one "overall" sensor.

SpeedTrip · 04-17-2014, 02:07 AM

I'm sure you're right!

CmdllbF11 · 04-17-2014, 11:50 AM

This is (my picture) the climate control on 520d SE (2010). Not sure whether it's basic or 'different'

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04-14-2014, 05:05 PM	#1
immx Private First Class 5 Rep 159 Posts Drives: 2012 520D SE Touring Join Date: May 2013 Location: Essex, UK iTrader: (0)	What is the round rubber bit for? This has been bugging me since I got my car, below the LHS temp control, there is a small round rubber thing. Does anyone know what it's for or why it's there? P.s. I nicked the image off another forum, so thanks to whoever owns it!
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04-14-2014, 05:47 PM	#2
jadnashuanh Major 50 Rep 1,061 Posts Drives: 535iGT x-drive; i3 BEV Join Date: May 2010 Location: USA iTrader: (0)	I think you'll find that it is a temperature sensor. Some have noticed that it isn't placed all that well since you may have a hot cup of coffee or a cold drink sitting right in front of it. The Germans don't tend to drink in their cars as much, and use them for driving, so it probably doesn't matter much. Maybe a room-temp bottle of water, which wouldn't affect it too much.
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04-14-2014, 06:00 PM	#3
remmib General 1566 Rep 29,202 Posts Drives: 2013 F10 520d M-Sport Join Date: Feb 2006 Location: Norway iTrader: (0)	I've been wondering the same thing, and temp sensor might be a good guess. __________________ F10 520d M-Sport Alpine White \| HRE P43SC 20x9+20x11 \| Michelin PSS 255/35+295/30 \| KW V3 Coilover \| M5 Front Sway Bar + M550d Rear Sway Bar \| 3DDesign Front Lip \| BMW M Performance CF Spoiler \| BMW M Performance Diffuser \| BMW M Performance Black Grills \| BMW M Performance Pedals \|
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04-15-2014, 06:03 AM	#4
AP Major General 2762 Rep 5,082 Posts Drives: G30 M550 Join Date: Apr 2011 Location: UK iTrader: (0)	if it was a temperature sensor, wouldn't there be two? one fo the left hand side , and one for the right hand side?
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04-15-2014, 03:04 PM	#5
immx Private First Class 5 Rep 159 Posts Drives: 2012 520D SE Touring Join Date: May 2013 Location: Essex, UK iTrader: (0)	Good point! Hmmmmm?????
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04-15-2014, 03:09 PM	#6
dippo Private 2 Rep 72 Posts Drives: 2014 F10 LCI 520D SE Auto Join Date: Jun 2013 Location: UK iTrader: (0)	They would be a bit close together if they were temperature sensors; there wouldn't be much difference between the two. Last edited by dippo; 04-15-2014 at 03:47 PM..
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04-15-2014, 03:40 PM	#7
CmdllbF11 Private First Class 9 Rep 197 Posts Drives: MY10 F11 520d SE Join Date: Apr 2014 Location: UK iTrader: (0) Garage List 2010 BMW 5SE (F11) [0.00]	No 'sensor' here on the F11 ('10) 520d SE. Attached Images
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04-15-2014, 05:32 PM	#8
jamiesecker First Lieutenant 65 Rep 386 Posts Drives: M4 CP Join Date: Nov 2009 Location: hants iTrader: (2)	I thought as mentioned a temp sensor as same as in my previous M3. __________________ BMW E36 M3 Track car, Safety Devices role cage, Recaro Pole position seats, Bilstien Suspension, BBK, Poly bushed.(in factory white). BMW F10 M5 Dailey driver.
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04-16-2014, 05:04 AM	#9
remmib General 1566 Rep 29,202 Posts Drives: 2013 F10 520d M-Sport Join Date: Feb 2006 Location: Norway iTrader: (0)	BTW, is that the basic clima control, mine look like this. __________________ F10 520d M-Sport Alpine White \| HRE P43SC 20x9+20x11 \| Michelin PSS 255/35+295/30 \| KW V3 Coilover \| M5 Front Sway Bar + M550d Rear Sway Bar \| 3DDesign Front Lip \| BMW M Performance CF Spoiler \| BMW M Performance Diffuser \| BMW M Performance Black Grills \| BMW M Performance Pedals \|
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04-16-2014, 05:50 AM	#10
AP Major General 2762 Rep 5,082 Posts Drives: G30 M550 Join Date: Apr 2011 Location: UK iTrader: (0)	is it to cover a screw possibly? makes me wonder where the temperature sensors actually though?
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04-16-2014, 06:07 AM	#11
xenon Major General 1394 Rep 8,081 Posts Drives: 2021 G21 330i M-Sport Join Date: Jun 2008 Location: Coventry iTrader: (0)	It is the temperature sensor. It used to be behind the little "grille" and now it isn't. __________________ Ian Current: 2021 G21 330i M-Sport Previous: 2018 A6 Avant S-Line MMI+, 2014 F31 320d M-Sport, 2013 F10 520d M-Sport, 2011 F10 530d M-Sport, 2008 320i M-Sport Coupe, 2002 325i, 2001 318i valvetronic, 1998 318i, 1996 525i, 1990 Porsche 944S2
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04-16-2014, 09:07 AM	#12
xd New Member 2 Rep 16 Posts Drives: 525d Touring Xdrive Join Date: Apr 2014 Location: Europe iTrader: (0)	+1 for internal temp sensor Solar and condensation sensor is tucked-up in the mirror housing.
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04-16-2014, 09:44 AM	#13
SpeedTrip Second Lieutenant 26 Rep 267 Posts Drives: F21 M140i LCI-2 Alpine Join Date: Sep 2013 Location: UK iTrader: (0) Garage List 2019 BMW M140i F21 ... [0.00] 1995 BMW M5 [0.00] 2013 F11 530d LCI [0.00] 2015 BMW M135i LCI [0.00]	so how is the left / right temp differential managed with one sensor ? __________________ M140i LCI-2 is the 16th BMW since 1977 .... 320i 2, 323i, 520i 2, 540i, 535i, 840i, E36 M5, 328i, 530i, 320d, 535d, M135i, M140i * 2
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04-16-2014, 10:06 AM	#14
xenon Major General 1394 Rep 8,081 Posts Drives: 2021 G21 330i M-Sport Join Date: Jun 2008 Location: Coventry iTrader: (0)	It isn't, at least, not properly. How could you have an accurate temperature differential in such a small space without a physical divide? All the two settings do is to give a bias. __________________ Ian Current: 2021 G21 330i M-Sport Previous: 2018 A6 Avant S-Line MMI+, 2014 F31 320d M-Sport, 2013 F10 520d M-Sport, 2011 F10 530d M-Sport, 2008 320i M-Sport Coupe, 2002 325i, 2001 318i valvetronic, 1998 318i, 1996 525i, 1990 Porsche 944S2
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04-16-2014, 10:26 AM	#15
SpeedTrip Second Lieutenant 26 Rep 267 Posts Drives: F21 M140i LCI-2 Alpine Join Date: Sep 2013 Location: UK iTrader: (0) Garage List 2019 BMW M140i F21 ... [0.00] 1995 BMW M5 [0.00] 2013 F11 530d LCI [0.00] 2015 BMW M135i LCI [0.00]	Well obviously you couldnt - and the word 'accurate' is yours, not mine ..... nevertheless, there is a difference ! __________________ M140i LCI-2 is the 16th BMW since 1977 .... 320i 2, 323i, 520i 2, 540i, 535i, 840i, E36 M5, 328i, 530i, 320d, 535d, M135i, M140i * 2
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04-16-2014, 10:29 AM	#16
xenon Major General 1394 Rep 8,081 Posts Drives: 2021 G21 330i M-Sport Join Date: Jun 2008 Location: Coventry iTrader: (0)	yes because of the bias. If you have one side set higher then the other the blending flaps will distribute warmer air onto that side but it's only ever controlled by one "overall" sensor. __________________ Ian Current: 2021 G21 330i M-Sport Previous: 2018 A6 Avant S-Line MMI+, 2014 F31 320d M-Sport, 2013 F10 520d M-Sport, 2011 F10 530d M-Sport, 2008 320i M-Sport Coupe, 2002 325i, 2001 318i valvetronic, 1998 318i, 1996 525i, 1990 Porsche 944S2
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04-17-2014, 02:07 AM	#17
SpeedTrip Second Lieutenant 26 Rep 267 Posts Drives: F21 M140i LCI-2 Alpine Join Date: Sep 2013 Location: UK iTrader: (0) Garage List 2019 BMW M140i F21 ... [0.00] 1995 BMW M5 [0.00] 2013 F11 530d LCI [0.00] 2015 BMW M135i LCI [0.00]	I'm sure you're right! __________________ M140i LCI-2 is the 16th BMW since 1977 .... 320i 2, 323i, 520i 2, 540i, 535i, 840i, E36 M5, 328i, 530i, 320d, 535d, M135i, M140i * 2
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04-17-2014, 11:50 AM	#18
CmdllbF11 Private First Class 9 Rep 197 Posts Drives: MY10 F11 520d SE Join Date: Apr 2014 Location: UK iTrader: (0) Garage List 2010 BMW 5SE (F11) [0.00]	This is (my picture) the climate control on 520d SE (2010). Not sure whether it's basic or 'different' :
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