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Tin top strange noise - help please
chris-p-duck - 26/5/10 at 04:29 PM

Hi all, I need some advice as my tin top has started making some strange noises. Its an Audi A4 1.9 tdi (non quattro) with 170k miles and when I have any steering lock on at speed (40 mph plus) I can hear a w-w-w-w-w-w-w-w-w-w-w sort of noise from the front drivers side wheel. Occasionally it happens with the wheels straight ahead but it is far more pronounced with some steering angle on. I can feel slight vibration thru the steering wheel and braking makes no difference (apart from slowing the car down!!) It seems to be road speed related.

So any ideas? Hub bearing? CV joint?

Any advice gratefully received

Cheers

Chris


zilspeed - 26/5/10 at 04:31 PM

Tyre carcass with a twist on it ?

It really isn't unheard of and would give a rythmic swishing noise.


Agriv8 - 26/5/10 at 04:35 PM

I would suspect a CV Joint regards

Agriv8


norfolkluego - 26/5/10 at 05:11 PM

Power steering pump?
Nah, just read your question again.

Lost balance weight?

[Edited on 26/5/10 by norfolkluego]


chris-p-duck - 26/5/10 at 05:23 PM

would a balance weight only affect it with the steering turned though?


chris


MikeRJ - 26/5/10 at 05:23 PM

Wheel bearing almost certainly. Steering left or right will load and unload the wheel with the duff bearing so you should be able to work out which side it is.


r1_pete - 26/5/10 at 06:00 PM

I'd go with the wheel bearing too, had a similar issue on a fwd cavalier many years ago...


Marcus - 26/5/10 at 06:00 PM

Wot Mike said, deffo wheel bearing. If you put enough lock on at 40 to hear a driveshaft issue, you'd be in the hedge


chris-p-duck - 26/5/10 at 06:14 PM

is a bearing change something i can do or is it a dealer job? special tool? does it need pressing in or anything?

cheers

chris


Ninehigh - 26/5/10 at 07:48 PM

If it's the same kind of bearings I've been refitting in college you could do it yourself, but you'd need a press.. About 4 tons of pressure iirc.

Then again that's the rings the bearings sit in, the bearing themselves you could replace but it might well be doing half a job. Like replacing brake pads only when the disc needs changing too.


BenB - 26/5/10 at 10:15 PM

CV joint tends to be a click-click-click noise when turning slowly at full lock. Bearing gives a more thrumming noise as described.