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E36 M3 (1992-1999) {Euro - S50 B32 321hp @ 7400 rpm} {U.S. - S52 B32 240 hp @ 6000 rpm}
Total Produced: 71,212 - Years Produced: 1992 to 1999

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Old Tue, Sep-14-2010, 07:45:03 PM   #1
LemonPaper
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Default Brake duct wire thing

There's some wire that plugs into the brake ducts. What does it do? Is it just to hang onto the duct if it somehow falls out? Also, what does the other end of the wire connect to? Is there any way to replace it because on the passenger side, mine is cut. If there is a way to replace it, where can I buy the replacement?
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Old Tue, Sep-14-2010, 07:55:15 PM   #2
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ambient temperature sensor.
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Old Tue, Sep-14-2010, 08:10:21 PM   #3
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Oh. Okay. Cool. Do you know where to get one by any chance?
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Old Tue, Sep-14-2010, 08:13:28 PM   #4
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Wait. Nevermind. I found the sensor. Do you know what to do about the wire since it's damaged?
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Old Tue, Sep-14-2010, 09:20:03 PM   #5
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Depending on your car, each duct will have a single sensor in it.

Drivers side is ambient air temperature. This shows as outside temp on your OBC.
Passenger side is heated washer nozzle sensor.
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Old Tue, Sep-14-2010, 09:20:38 PM   #6
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Quote:
Originally Posted by Mr Estoril View Post
ambient temperature sensor.
close, but wrong side
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Old Tue, Sep-14-2010, 09:26:11 PM   #7
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What does a heated water nozzle sensor do? And how do I fix my problem?
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Old Tue, Sep-14-2010, 09:43:16 PM   #8
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Wire, solder w/flux, soldering iron, & heatshrink tubing that should work quite nicely!
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Old Tue, Sep-14-2010, 10:11:34 PM   #9
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Quote:
Originally Posted by LemonPaper View Post
What does a heated water nozzle sensor do? And how do I fix my problem?
Start by addressing what is you're missing.

http://realoem.com/bmw/showparts.do?...70&hg=61&fg=45

#24 is the sensor you need.

One of these is the connector

http://realoem.com/bmw/showparts.do?...90&hg=61&fg=15

And one of these is the the wire/terminal required.

http://realoem.com/bmw/showparts.do?...96&hg=61&fg=15

Doesn't matter which you wire a temp sensor btw. There is no polarity. Anyway you plug in the terminals to the connector is correct.
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Old Wed, Sep-15-2010, 02:33:39 AM   #10
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Oh. Cool. That's helpful. Alright. Thanks.
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Discussing Brake duct wire thing in the E36 M3 (1992-1999) Forum - {Euro - S50 B32 321hp @ 7400 rpm} {U.S. - S52 B32 240 hp @ 6000 rpm}
Total Produced: 71,212 - Years Produced: 1992 to 1999 at BMW M3 Forum.com (E30 M3 | E36 M3 | E46 M3 | E92 M3 | F80/X)