 » Site Navigation | | | | » Recent Threads | | | |  |  |  |  03-26-2008, 01:42 AM | #1 | | Member Join Date: Feb 2007 Location: Little Rock Posts: 51 |  Brake Air Duct
Can someone please explain the purpose of this? I'm guessing it cools the brakes and senses when they are overheating? I need to have it replaced and I'm wondering how important it really is. I don't recall my 95' having this feature but I could be wrong. (my car is a 97') Anyway, it's #20 in the link. Thanks guys. http://www.realoem.com/bmw/showparts...58&hg=51&fg=15 |  |  | | 03-26-2008, 01:44 AM | #2 | | Senior Member Join Date: Sep 2007 Location: asdfasdf Posts: 10,002 |
I'm pretty sure that there are plenty of people running without the ducts so I'm going to say that they aren't important, I have them and don't think that they really do anything but look kinda cool | | | | | 03-26-2008, 02:00 AM | #3 | | Senior Member Join Date: Jun 2003 Location: Greenville, SC Posts: 9,356 |
I wouldn't worry about it. __________________ ...steven
BMW CCA #146825
1996 BMW 328ti • 2003 MINI Cooper S • 2016 M235i
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| | | | | 03-26-2008, 03:55 AM | #4 | | Senior Member Join Date: Nov 2006 Location: Stamford, CT <-> Boston, MA Posts: 1,393 |
The driver's side brake duct houses the external temp probe don't forget  __________________ 
BMWCCA #403399
2012 Mini Cooper S Clubman, 6-Speed
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Bilstein Sport Shocks/Struts . H&R Sport Springs . Strut Reinforcement Plates . RSM Reinforcement Plates . Fogg Airbox . X-Brace . Bosal Brospeed Catback | | | | | 03-26-2008, 04:03 AM | #5 | | aka Stabby Join Date: Nov 2004 Location: Mead, CO Posts: 5,336 |
the duct itself flows air towards the brakes, but isn't like a kit that has flexible tubing that outlets the air right onto the brakes. as steven said, probably not something to worry about. definitely no sensing of when the brakes are overheating. do you have the onboard computer? if so, what does the outside temp show? if the temp sensor is missing it reports are very odd temp like -40. __________________ 1996 318ti, California package, 267k miles
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Current Mods: e46 m3 steering wheel | | | | | 03-26-2008, 05:41 AM | #6 | | Senior Member Join Date: Jan 2005 Location: Fort Collins, CO Posts: 1,305 |
Quote: Originally Posted by ATF  The driver's side brake duct houses the external temp probe don't forget | true. it's not the end of the world if you don't have it. I don't know your driving habits but I'm pretty sure you're brakes aren't going to get that hot | | | | | 03-26-2008, 06:40 AM | #7 | | Senior Member Join Date: Nov 2006 Location: Pittsburgh, PA Posts: 1,224 |
hmm, I just have my temp probe zip-tied to the bumper carrier. I always wondered if there was a specifically designed place for it. | | | | | 03-26-2008, 12:58 PM | #8 | | Member Join Date: Feb 2007 Location: Little Rock Posts: 51 |
I don't have the external temperature feature. I'm going to have the duct replaced because I want the car to remain perfect. Also, The one I'm going to replace is on the passenger side. It doesn't look like a probe to me; more like a flat disc inside the duct. | | | | |
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