Brake Vacuum Pump 90 Tdi 2000 Model

[drcrawey]

I recently had a brake failure, pedal was rock hard and brakes were only working slightly, every thing went back to normal after waiting 5min.Have check servo operation and seems ok, could it be the vacuum pump or the vacuum pipe? Pipe connection onto top of pump seems to be a little loose and i'm not sure if this is normal . can anyone suggest anything.

 

Also can anyone recommend any parts suppliers for these parts if I have to renew them?

 

Please help as I am off to France in two weeks and no brakes may be a slight problem!!!!!!!

 

Many thanks in advance

 

IAN

[turk90210]

Hi Ian

A hard brake pedal is a sign of your vacuum not being present, they will still work but will need ALOT of extra effort to press them as you have lost the servo assistance. Its a bit like Power Steering, when the engine is running the steering is easy to turn but when the engine is not running the steering turns but it take alot more effort

but 1st thing what are you classing as a brake failure, were you pressing the brakes fast 5-6-7 times then found they went hard or did you press them a couple of times before they went hard or were they hard straight away?

If they were hard straight away chances are either a leaking vacuum pipe or total failure of the pump (but as you say they were ok after 5 mins it doesnt sound like the pump)

If they were hard after a few presses then i would be inclined to think poss worn vac pump

If they went hard after alot of pumping then this could be normal

re the pipe being loose, yes this could be ok the main factor here is "is there any vacuum leak along the pipe" if there is then theres your fault if not then the pump needs checking (how much is it sucking)

If you feel confident then you could check these bits yourself, BUT if you have any doubts get the brakes checked over by a mechanic who should be able to advise you better Im sure if you called in at your local garage they would do a quick check for you I know I would (but then again i have a thing about brakes, its easy to make a car go but you always need brakes to stop)

 

***NEVER***

take chances with brakes