Church Road Garage

Mitsubishi Shogun - Brake shudder

This Mitsubishi Shogun came in with a shudder under braking.

LHS Front Disc after re-surfacing

The front brake discs both looked OK and measured well outside there minimum thickness.

It was decided to re-surface the discs on the vehicle using our specialised tool that is attached on to the brake caliper mountings.

Brake Disc re-surfacing tool

The left hand side disc re-surfaced fine with only a minimal amount of machining.

RHS Disc webs have corroded through !

When attempting to machine the right hand side one it was noticed that the outer side of the ventilated disc looked true but the inner side looked like it was running out.

After investigation it was found that the ventilation webs have corroded through all the way round  and the inner face was therefore not running true to the outer face. Pity we didn’t choose this one to start re-surfacing first !

This was obviously the cause of the brake judder solved by a new set of discs and pads.

We had a 2005 Mercedes C Class in with a noisy front brake problem. Visually the pads were worn but still looked OK. After the pads were removed for further inspection the left hand side pair was as detailed in the pictures above.    As you can see here the brake pad material has broken away from its backing plate and the only item stopping it from being ejected was the wear indicator. A bit worrying !!!