Reply With Quoteimbedded in the plastic tip of the sensor gets worn away by the rotor and breaks the circuit open, it triggers the warning on the dash.
If you want to see the warning, just unplug the sensor.
2 Grand Master
Brake Ware Sensors
How do they work? Do you see a message in the console or do i hear like a chirping/whistling sound from the wheel when the brakes are NOT employed?
1995 540i Manual build 1/95
3 Grand Master
When a fine wire
imbedded in the plastic tip of the sensor gets worn away by the rotor and breaks the circuit open, it triggers the warning on the dash.
If you want to see the warning, just unplug the sensor.
Vee ave vays of dealing vid your kind...........
2 Grand Master
Good enogh. I heard some high pitched whisle sounded like it was coming from a rear wheel. It went away it seemed when i hit the brakes but after a minute it went away completely and didn't return,may have just been a wheel bearing groaning after i took an especially hard fast curve.
1995 540i Manual build 1/95
Green Beret Special Ops
say "brake wear" "brake wear" "brake wear" sensor. as Bob says, easy deal to replace, fronts with tires, rears need wheels removed for access.
95 E34 530I V2.37
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Those who make peaceful revolution impossible will make violent revolution inevitable.
John F. Kennedy
2 Grand Master
I almost bought a house in Ware,NH. I guess i never forgot the place.. This notwithstanding, how does replacing the sensor help unless i replace the pads too in which case i have to take the wheels off anyway...Originally Posted by 632 Regal
Last edited by Jehu; 08-23-2006 at 09:34 PM.
1995 540i Manual build 1/95
How those sensors work is..
Basicly there is a circut which is not complete until you wear away the plastic with the caliper pushing it up against the rotor. The plastic wears off and the wires touch and make a complete circut which tells the dash to light up with "Brake Linings"
2 Grand Master
So then you go look at your pads and judge if you want to change them or like to like dangerously?
1995 540i Manual build 1/95
3 Grand Master
close, but no...
the circuit is closed until the fine wire gets worn away by the rotor, and becomes open.
That's why so many of us experiance false warnings from corrosion in the plug terminal.
Vee ave vays of dealing vid your kind...........
Green Beret Special Ops
they sometimes wear one side of the pad more than the other, you definetly should take a peek at them. I had no brake warning but the pass side was almost at metal to metal. Saved them rotors and was good to go.
95 E34 530I V2.37
===========
Those who make peaceful revolution impossible will make violent revolution inevitable.
John F. Kennedy
3 Grand Master
That's the fun part
there's only two sensors, one front one back.
so, if you got uneven wear, you got trouble.
Vee ave vays of dealing vid your kind...........
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