Brake Pedal Noise: Causes and Solutions

Hello,

I have an unpleasant problem with my Golf IV, which was manufactured in 1998.

Occasionally, when braking, a loud, unpleasant mechanical grinding noise can be heard coming from the brakes. At the same time, a noticeable, jerky resistance is felt in the brake pedal.

Es ist fast so, als würde das ABS (grundlos) einsetzen. Es wurde bereits einmal ein Drehzalmesser aufgrund eines Fehlercodes ausgetauscht. Unsuccessful.

Does anyone have any ideas?

'Thank you!'
Michael.

I once had a similar issue with a 35i. Back then, the problem was with the cables to the front.
ABS sensors defective!

Okay. A Drezahl sensor on the front right side was replaced because an error was stored in the memory, but the replacement did not fix the problem, and the same error was recorded again.

However, at that time, it was not possible to determine exactly how the error occurred.

I've now taken a closer look at the engine compartment. From the engine compartment, a cable runs to the wheel well. Right at the point where it passes through, the cable is severely bent, so much so that the outer casing is exposed, and you can see the insulation of the inner cables. One of the inner cables is also protruding and is completely bent over. Perhaps there's a broken wire?

I pulled on the cable, bending and stressing it, hoping to trigger an ABS error. However, no error occurred.

Before I start working on the wiring harness (which I really don't want to do, as I can't see where the cable begins or ends), I would like to be sure that these are actually the cables that go to the ABS system. Unfortunately, I don't have a wiring diagram or anything like that. If there were a broken cable, I would have expected that the movement would trigger an error.

MickS wrote:

Before I start working on the wiring harness (which I really don't want to do - I can't tell where the cable begins/ends), I would like to be sure that these are actually the cables that go to the ABS.

For the vehicles I'm familiar with, there are cables running to the wheels for...

-> Brake pad wear sensor.

-> ABS sensor.

Just follow the cable towards the wheel.
If it ends up on a brake pad -> wrong cable