Brake pads and sensor - BMW Forum - BimmerWerkz.com
3-Series (E46, E90) Chat relating to the BMW 3-Series from 1999 to Current. Models include: BMW 316i, BMW 318i, BMW 318Ci, BMW 320i, BMW 323i, BMW 325i, BMW 330i, BMW 328 Ci, BMW 328i, BMW 325i/xi, BMW 330Ci, BMW 320d, BMW 330d, BMW 335d.

 
LinkBack Thread Tools Display Modes
#1 (permalink) Old 04-18-2007, 07:04 AM
n00b
 
Join Date: Nov 2004
Posts: 12
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
catman3 is an unknown quantity at this point
(Thread Starter)
Brake pads and sensor

The brake warning light was came on. Then, I came to shop and changed the front pads and sensor. After it was replaced, the light was still light-up. Then, I took the car for a few miles away, stopped for work. When I came back, turn the key again. The brake warning light had got.

Who knows why the warning light is still light-up initially. Is that any run-in period for the sensor? Or it needs timing for brake fluid running go back to higher level??
catman3 is offline  
Sponsored Links
Advertisement
 
#2 (permalink) Old 04-18-2007, 09:34 PM
Neutral Member
 
Join Date: Aug 2005
Posts: 84
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
TRuckee is an unknown quantity at this point
Probably the shop didn't reset the warning light.
TRuckee is offline  
#3 (permalink) Old 04-19-2007, 08:43 AM
1st Gear Member
 
Join Date: Sep 2005
Posts: 236
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Hootie is on a distinguished road
Brake pad sensors do not sense the level of brake fluid, they sense the wear on your pads. After new wires are installed, you have to reset the light by turning the key to the "on" position (but not actually starting the car). You leave it there for about a minute and the light disappears.
Hootie is offline  
#4 (permalink) Old 04-19-2007, 12:43 PM
Keep it Copacetic
 
///M Power's Avatar
 
Join Date: Feb 2004
Location: St. Louis, MO ||| Los Angeles, CA
Posts: 9,481
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
///M Power has a reputation beyond repute ///M Power has a reputation beyond repute ///M Power has a reputation beyond repute ///M Power has a reputation beyond repute ///M Power has a reputation beyond repute ///M Power has a reputation beyond repute ///M Power has a reputation beyond repute ///M Power has a reputation beyond repute ///M Power has a reputation beyond repute ///M Power has a reputation beyond repute ///M Power has a reputation beyond repute
Send a message via AIM to ///M Power
Are you sure they replaced the sensors? If the shop is shady they'll just pocket your money for sensors if they think the sensors look fine. And these shops are usually idiots because they don't realize the sensors work in a fashion where if they ever wear down enough to initially turn on they are toast and HAVE to be replaced.

How the sensor works is it sits int he brake pad at a certain level. Whenever the pad is worn enough it gets down to sensor level and the sensor makes contact with the rotor. They get slid across and then they are on and gone. They must be replaced at this point.



Or maybe it's just your rear sensors/pads.


1995 BMW M3 Turbo - Dakar/Black
///M Power is offline  
#5 (permalink) Old 04-30-2007, 03:54 AM
n00b
 
Join Date: Nov 2004
Posts: 12
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
catman3 is an unknown quantity at this point
(Thread Starter)
Quote:
Originally Posted by Hootie
Brake pad sensors do not sense the level of brake fluid, they sense the wear on your pads. After new wires are installed, you have to reset the light by turning the key to the "on" position (but not actually starting the car). You leave it there for about a minute and the light disappears.
Thanks, Hootie, I think you are corrected. I don't remember the reset action. But I turn on the key and start engine as normal. Anyway, it was reseted and ok now.
catman3 is offline  
Sponsored Links
Advertisement
 
Reply

  BMW Forum - BimmerWerkz.com > BMW Model Specific Forums > 3-Series (E46, E90)


Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
User Tag List

Thread Tools
Show Printable Version Show Printable Version
Email this Page Email this Page
Display Modes
Linear Mode Linear Mode



Similar Threads
Thread Thread Starter Forum Replies Last Post
Brake Sensor Light Kulbiker 3-Series (E46, E90) 16 06-28-2006 02:44 AM
Need New Brake Pads And Rotors And Have Some ?'s elbee 3-Series (E46, E90) 4 12-18-2004 06:25 PM
rear Brake pads and sensor El Presidente Classifieds Sell & Buy 0 08-31-2004 01:35 AM
Changed my brake pads BlantonG13 3-Series (E36) 17 08-04-2004 10:27 AM

Posting Rules  
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On

 
For the best viewing experience please update your browser to Google Chrome