HelpThisDude
Senior Member
- Joined
- Dec 2, 2008
- Messages
- 649
- Reaction score
- 5
- Location
- Essex
- Your Mercedes
- W203 C270CDI, R172 SLK55 AMG
When I bought the car, I knew the front discs were not right, I assumed warped.
I left it as it was, because I wanted to do the AMG caliper conversion.
Once fitted, I thought my cheap discs were warped again, as I had a very obvious judder braking from 40 mph and above.
With the wheel and pads removed, watching the disc against the fixed point of the caliper, while spinning by hand it was obvious the disc was not spinning true.
So I bought brand new MB discs and totally scraped the hub face clean. The New disc was offered up and secured on the torx screw. However, when spun in the same way, the same things happens.
With ONE pad in the caliper, it is even more obvious, as the disc rotates it bends hard up against the pad. Once rotated past the 'tight spot' the disc bends away and turns free. By eye, I would say the run out is > 1mm, which I believe is huge!
The Drives side is the same.
I also noticed that the pins that hold the brake pad spring in place had come loose, the passenger side pins had totally dislocated, and the pad spring had been catching the wheel ballancing weights!
Back to the issue... Can the Hubs be distorted?
I left it as it was, because I wanted to do the AMG caliper conversion.
Once fitted, I thought my cheap discs were warped again, as I had a very obvious judder braking from 40 mph and above.
With the wheel and pads removed, watching the disc against the fixed point of the caliper, while spinning by hand it was obvious the disc was not spinning true.
So I bought brand new MB discs and totally scraped the hub face clean. The New disc was offered up and secured on the torx screw. However, when spun in the same way, the same things happens.
With ONE pad in the caliper, it is even more obvious, as the disc rotates it bends hard up against the pad. Once rotated past the 'tight spot' the disc bends away and turns free. By eye, I would say the run out is > 1mm, which I believe is huge!
The Drives side is the same.
I also noticed that the pins that hold the brake pad spring in place had come loose, the passenger side pins had totally dislocated, and the pad spring had been catching the wheel ballancing weights!
Back to the issue... Can the Hubs be distorted?