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View Full Version : Bremsbelag-Verschleiss light blinking


food
10-04-2011, 03:29 PM
http://img685.imageshack.us/img685/2889/dsc0003hp.jpg

This little bastard blinks sometimes, increasing frequency with speed. Any ideas why my brake lining wear light would be following speed intermittently?

411
10-04-2011, 03:35 PM
http://img685.imageshack.us/img685/2889/dsc0003hp.jpg

This little bastard blinks sometimes, increasing frequency with speed. Any ideas why my brake lining wear light would be following speed intermittently?

Dein Deutsche ist sehr gut*th-up*

food
10-04-2011, 05:32 PM
Mein deutsch ist nicht gut, google ist mein freund.

411
10-04-2011, 06:08 PM
Mein deutsch ist nicht gut, google ist mein freund.

lol:D.....you "peeps" from das TGA...are "really"...[ *funny ] *smoke*

E30M42cab
10-04-2011, 06:26 PM
The only thing it could possibly have to do with speed, is the vibration, possibly from a loose conection where the sensor is plugged in. It's not supposed to blink (as you know), so either your pad sensor is just about to wear our, or it's coming loose at the connector. I'd lean towards the latter of the two.

food
10-04-2011, 07:47 PM
So this pad sensor is on the caliper some place?

Edit 1:Did some looking at parts diagrams and found a pulse generator and pad wear sensor. I'm assuming the pulse generator is for the ABS and pad sensor must be wired to the bremsbelag-verschleiss light? If i disconnect this pad wear sensor will my light go away or go constantly on?

Edit 2: NVM, it needs to be shorted.

phreshSOCKS
10-04-2011, 08:19 PM
I had the same problem with mine. I noticed it would flicker with vibrations and bumbs in the road. I found it easier just to ignore it. But that may be what caused me to rear end a car on the highway and write off my car..... Hope this helped!

411
10-04-2011, 09:11 PM
:idea:keep pulling fuses till you find the right one........:idea:

[serious]....my guess is your emergency brake backing plate [the " thingy" that holds
the emergency brake shoes] is "disintegrating as we speak!! Look around there...I'll bet this adds a lot of insight:rolleyes:

food
10-04-2011, 10:33 PM
Thanks for the suggestions. I do recall when I had the car saftied the mechanic said the pads and rotors should be replaced soon. But that doesn't explain why it sometimes flickers and sometimes doesn't and follows speed. I'll probably just disable the whole system since every other car I've ever had didn't have a brake pad warning system and I never managed to grind my pads all the way down. That bit about the e-brake plate disintegrating is worrying though.

411
10-04-2011, 10:36 PM
Thanks for the suggestions. I do recall when I had the car saftied the mechanic said the pads and rotors should be replaced soon. But that doesn't explain why it sometimes flickers and sometimes doesn't and follows speed. I'll probably just disable the whole system since every other car I've ever had didn't have a brake pad warning system and I never managed to grind my pads all the way down. That bit about the e-brake plate disintegrating is worrying though.

Sorry....didn't want to make you worry:(

Axxe
10-05-2011, 12:06 AM
I just had the same problem on the back of my e36. The wear sensor wire were it connects to the actual wear indicator on the pad was corroded and almost broken off, so sometime it had enough contact and sometimes it didnt. Just shorted it and problem gone (pads had lots of meat left).

E30M42cab
10-05-2011, 01:59 AM
^^Exactly. Disconnecting it will put the light on all the time. Cutting it (opening the loop - which is what happens when the rotor wears the sensor away which turns the light on properly), stripping a bit of the sheathing, and twisting the two wires back together shorts/closes the circuit and turns the light off. E30 fix it.

food
10-05-2011, 08:47 AM
That's the plan, just turning them off completely. I just don't want to disable the light if it's warning me of some other problem.

411
10-05-2011, 08:49 AM
That's the plan, just turning them off completely. I just don't want to disable the light if it's warning me of some other problem.

*th-up*

everlast
10-05-2011, 11:17 AM
Pull the cluster, pull the bulb. :)

411
10-05-2011, 12:08 PM
Pull the cluster, pull the bulb. :)

*th-up*

food
10-05-2011, 12:52 PM
Pull the cluster, pull the bulb. :)

I've never pulled the cluster in an E30 but it sounds a lot like more work then cutting and twisting some wires together.

cormier
10-05-2011, 12:57 PM
It's not that bad -- just be gentle with her

davericher20
10-05-2011, 02:19 PM
same thing happened with mine. big bump or at high speed it would come on. The harness was corroded and broken.

Disconnect.

food
10-05-2011, 04:58 PM
Bollocks, I shorted it and it worked fine for a bit but now the light is on all the time. Is there supposed to be a sensor on both the rear wheels? Mine only had one on the passenger side.

Guess I'll short the fronts now.

411
10-05-2011, 05:58 PM
Bollocks, I shorted it and it worked fine for a bit but now the light is on all the time. Is there supposed to be a sensor on both the rear wheels? Mine only had one on the passenger side.

Guess I'll short the fronts now.

:idea:keep pulling fuses till you find the right one........:idea:

[serious]....my guess is your emergency brake backing plate [the " thingy" that holds
the emergency brake shoes] is "disintegrating as we speak!! Look around there...I'll bet this adds a lot of insight:rolleyes:

Sorry again!:(

just letting this furom [*forum] know

E30M42cab
10-07-2011, 05:58 PM
Front driver's side has a sensor too.