knocking

[bigb1970]

Is there anything common which can cause knocking over bumps at low speed ie bushes/shocks/top balljoints/ wishbones

[stuart]

Hi

The front suspension on 98- Passats has 4 wishobones, and an anti roll bar link on each side. These are a very common area for failure.

From what you say, I would imagine one of these wishbones/links are worn.


Stuart

[bigb1970]

cheers what i thought

[billybob]

Recently done my 4 lowers as they were creaking. Now got knocking on O/S. Guess it might be the upper suspension arms now The list of jobs is endless!

[bigb1970]

complicated front susp set up on a passat prone to wear

[billybob]

Aye

Nice car but I'd kinda like my weekends back

[glynnd]

Welcome to the world of passat ownership!

[billybob]

so far this year

new rear discs and pads
new viscous fan unit
4 new lower suspension arms
new oil pump
new clutch
lots of smaller jobs

These jobs suck when you're on your drive in winter. It's cold and gets dark by 4pm!



Still got a bunch more including
a bad boost leak that I can't find
The above mentioned knocking
a petrol smell after turning the car off
A slack gearbox
others

what fun

[glynnd]

Have you replaced all the seals to try and cure the boost leak?
The passat boost pipes are the worst I have seen on a turbo car, particularly one that blows up to 30 psi!
I have the same problem cant find mine either!

[billybob]

So far I've had the lock carrier off twice to check all obvious hoses (had all larger hoses off individually but I'm struggling to find anywhere other than VW who stock the clips for the small vacuum lines so haven't actually pulled all those off apart from the two coming from the intake manifold which I have replaced as they were a bit ropey. I have also invested in a new diverter valve. I could replace the whole system but that would be crazy and can't afford to buy another item that doesn't actually need replacing.

Someone has mentioned it could be the actuator on the turbo sticking. Not sure how that would give me the sound of a leak but I guess air has to go somewhere.

What exactly do you mean by 'seals'?

cheers