Thread: Spongy Brakes - 300 Tdi Disco

All,

have noticed the brakes on my Disco seem a little spongy. On other cars I've have I'd head down the path of Master Cyclinder as being the possible issue. I noticed my vacuum unit is a little damp (oil on the outside). I've seen some threads in the past on ways to fix it but was wondering what the symptons are of a leaking vacuum unit. I would have thought loss of vacuum would make the brakes harder not softer.

Just trying to do some elimination before I spend some cash.

Darren

Also check the wheel bearings for excessive end float. In fact with D1's and RRC's this is my first port of call when faced with spongy/ low brake pedal complaints. The movement of the hubs caused by loose wheel bearings pushes the caliper pistons back in during cornering/ driving. This gives a very poor pedal feel.

Also, If you have ABS then the pedal often IS a little lower than a NON ABS model, and a good brake fluid flush will improve things sometimes.

JC