Brake Sensor Problem
Thread Starter
Members
Joined: Dec 2007
Posts: 51
Likes: 0
From: Nevada City, CA
Hi All,
I just replaced pad and rotors all around on my 2005 530. I did this before any excessive pad or rotor wear, or indication of any proiblem. Now I have a worn front brake indicator which I can't reset. The system always reports that I have -9000 miles on the front rotors. I used R1 concepts rotors and Hawks HPS+ pads. I can reset the front pad mileage from -9000 to 0, but it sets back to -9000 miles? I tried both the new and old sensor, both do the same thing. I ohmetered the old sensor and it shows continunity, don't want to ohmeter the new sensor as I have to cut a slice in the connector to reach the pins. I see no signs of broken wires anywhere in the sensor string. Does -9000 mean anything? Anyone been here before?
Thanks,
Wayne
I just replaced pad and rotors all around on my 2005 530. I did this before any excessive pad or rotor wear, or indication of any proiblem. Now I have a worn front brake indicator which I can't reset. The system always reports that I have -9000 miles on the front rotors. I used R1 concepts rotors and Hawks HPS+ pads. I can reset the front pad mileage from -9000 to 0, but it sets back to -9000 miles? I tried both the new and old sensor, both do the same thing. I ohmetered the old sensor and it shows continunity, don't want to ohmeter the new sensor as I have to cut a slice in the connector to reach the pins. I see no signs of broken wires anywhere in the sensor string. Does -9000 mean anything? Anyone been here before?
Thanks,
Wayne
Contributors
Joined: Apr 2007
Posts: 5,851
Likes: 5
From: Kajaani, Finland
My Ride: Bmw 530d 2004
Are you trying to reset it via the instrument cluster? If so, it may be that indicators that have gone red already (instead of orange), have to be resetted with a computer (INPA, DIS etc). 
Members
Joined: Mar 2009
Posts: 11
Likes: 0
From: huddersfield uk
My Ride: '55' 520d m sport
I've got similar problem, i changed the rear pads when idrive said 1100 miles but didn't change sensor because it looked ok, then when i tried to reset idrive it went to -18000 miles so not sure if it is just a new sensor that i need
Thread Starter
Members
Joined: Dec 2007
Posts: 51
Likes: 0
From: Nevada City, CA
I found a clue to the problem in th eDIY forum section.
Here is what I posted over there.
I changed my rotors and pads in my 2005 530. I used Hawk HPS plus pads which came with new sensors. However when I changed the pads and reset the mileage the mileage for the rear went to -15000 and the front went to -9000 miles, and the service light occured. After reading this thread, I became convinced that the Hawk sensors did not come with the 470 ohm resistor shorted out (when brand new)as required by BMW for reseting the brake pad mileage. Using the old sensor had the same result as they were now used and the shorting wire was gone. I disconected the sensor and used a paper clip as a temporary short and then I was able to reset the mileage to 0000. It took a couple of tries to get the mileage to stay reset to 0000, for both the front and back brakes.
Thanks Again,
Wayne
Here is what I posted over there.
I changed my rotors and pads in my 2005 530. I used Hawk HPS plus pads which came with new sensors. However when I changed the pads and reset the mileage the mileage for the rear went to -15000 and the front went to -9000 miles, and the service light occured. After reading this thread, I became convinced that the Hawk sensors did not come with the 470 ohm resistor shorted out (when brand new)as required by BMW for reseting the brake pad mileage. Using the old sensor had the same result as they were now used and the shorting wire was gone. I disconected the sensor and used a paper clip as a temporary short and then I was able to reset the mileage to 0000. It took a couple of tries to get the mileage to stay reset to 0000, for both the front and back brakes.
Thanks Again,
Wayne
Thread
Thread Starter
Forum
Replies
Last Post
thesalboy
Other BMW Models
2
Apr 8, 2015 09:13 AM