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      07-02-2012, 01:00 PM   #1
Gins
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2008 BMW M3 E90  [0.00]
Brake Pressure Sensor Malfunction (not brake wear sensor)

Does anyone know where the Brake Pressure sensor (not the pad wear sensor) is located on our cars? Looks i've had 2 malfunctions in the past 3 days during very hot weather (100 degree temps).


Wanted to see if this is something I could replace on my own (on same difficulty as pads/rotor change), or even more difficult.

Thanks!
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      07-02-2012, 02:03 PM   #2
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Quote:
Originally Posted by Snig View Post
Does anyone know where the Brake Pressure sensor (not the pad wear sensor) is located on our cars? Looks i've had 2 malfunctions in the past 3 days during very hot weather (100 degree temps).


Wanted to see if this is something I could replace on my own (on same difficulty as pads/rotor change), or even more difficult.

Thanks!
Not sure if this is what your looking for, but check out #12

http://www.realoem.com/bmw/showparts...27&hg=34&fg=27
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      07-02-2012, 03:05 PM   #3
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Quote:
Originally Posted by Moxie View Post
Not sure if this is what your looking for, but check out #12

http://www.realoem.com/bmw/showparts...27&hg=34&fg=27
Awesome! Thanks! Looks like part number 12 gets plugged in!

@$125, I hope it's just a loose connection.

Also, where is this diagram located in the car?? #brakeServoUnitNoob
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      07-02-2012, 09:06 PM   #4
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Quote:
Originally Posted by Snig View Post
Awesome! Thanks! Looks like part number 12 gets plugged in!

@$125, I hope it's just a loose connection.

Also, where is this diagram located in the car?? #brakeServoUnitNoob
A common problem that the sensor goes bad.
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      07-03-2012, 11:33 AM   #5
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Quote:
Originally Posted by Snig View Post
Awesome! Thanks! Looks like part number 12 gets plugged in!

@$125, I hope it's just a loose connection.

Also, where is this diagram located in the car?? #brakeServoUnitNoob
Believe it's under the reservoir. If you’re out of warranty, I’d still take it to the dealer & see if they’d fix it under goodwill. Tom @ EAs posted there’s a TB out on it. As Bubbles said it’s a common problem that I was unaware of until mine went out. Tom said it was due to people spilling brake fluid on it causing it to malfunction. I had the labor covered under goodwill, but paid for the part. The whole bill was ~490 Euro, but I just paid 95Euro.
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      07-03-2012, 11:43 AM   #6
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Quote:
Originally Posted by Moxie View Post
Believe it's under the reservoir. If you’re out of warranty, I’d still take it to the dealer & see if they’d fix it under goodwill. Tom @ EAs posted there’s a TB out on it. As Bubbles said it’s a common problem that I was unaware of until mine went out. Tom said it was due to people spilling brake fluid on it causing it to malfunction. I had the labor covered under goodwill, but paid for the part. The whole bill was ~490 Euro, but I just paid 95Euro.
+1.

Code will cause car to go into limp mode.
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      07-03-2012, 08:37 PM   #7
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+1.

Code will cause car to go into limp mode.
Yeah, tell me about it
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