Satch
MB Enthusiast
- Joined
- Nov 24, 2003
- Messages
- 3,508
- Location
- Surrey
- Car
- S211 E320Cdi Avantgarde Estate & Toyota Land Cruiser
jimmy said:It's a fact that autos suffer more from warped brake discs than manuals, the theory is that after a bit of spirited driving, the brake discs get hot, when at junctions, traffic lights etc holding the car on the foot brakes, the brake pads act as heat sinks and cool the brake discs unevenly.
Obviously this goes against cars with SBC and SBH like mine!!
As far as I understand it the most common problem in the circumstances you describe is that of brake pad material "imprinting" on the disc because the pads are clamped tight on to a very hot disc that stays that way for longer than the rest of the disc.
Once an area is imprinted more friction material can build up on top of that and the result can braking vibration often wrongly put down to a "warped" disc. Disc may still be flat but got a bit bumpy!
http://www.stoptech.com/tech_info/wp_warped_brakedisk.shtml