Brakes

[woodman05]

can someone help, my car is a 1999 T reg TDi,, the problem is sometimes my brake padel is hard for a split second then goes back to normal,

anyone got any ideals.........

thanks :)

[seatkid]

You have either a leaking vacuum pipe or leaking brake vacuum servo. Also possibly a faulty vacuum pump, but this seems rare. Check the pipes first, its quite common to find a split.

[Beyond Help?]

The vacuum pump for your engine is on the front of the block and has a black plastic pipe that runs up the front and under right hand side the engine cover. The engine cover can wear this pipe through and the initial symptoms can be loss of vacuum at lower revs or after repeated brake use. Remove the engine cover by prising off the two plastic caps and removing the two 10mm nuts. Check the pipe for splits or wearing through.

 

The pipe comes in two parts, if it needs replaced you need to make sure you get both bits as the rest will have become brittle over time.