Thread: Strange Noise
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      04-07-2010, 07:26 PM   #2
k2pilot
flying things.
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Drives: Z4MC, B8 S4
Join Date: Feb 2008
Location: Sonoma County, CA

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Quote:
Originally Posted by SAVAGE View Post
Hey Guys,

Was wondering if any of you can explain this to me?

I was on the skidbpan yesterday and as i exited it I noticed a strange noise coming from the rear wheels. Is almost sounded like something had broken, really hard to explain but the noise was like a clicking on every wheel rotation like something was touching the ground.

This only happened when I turned the front wheels? Going in a straight line was fine but they noise only appeared when I turned.

I switched the car off for 20 min and then drove it again and it was fine??

Any idea what happened? Some electronic diff lock or something?
i have the exact same noise, or so i think, i have the same symptoms atleast. i'd been hunting it for some time, at first i thought it was the brakes just making a dragging noise of sorts perhaps from a rock, and it sounded like it was coming from the back. but after enough investigation and finding a means to consistently induce the noise, i think it's something in the power steering. try doing a slow circle in a large lot, and slowly up your speed/turning force, if it's like mine you should begin to hear the noise and maybe a bit of the power steering pump or something of the sort. so far on 3 ocassions i've gotten it so far as to actually have the pump(or something in the rack and pinion) make a constant belt/pump whine from very hard/fast turns(going through an intersection while throttling significantly). shutting it down then causes the pump noise to cease. atleast this way we know the source of the noise is somewhere up front in the rack and pinion.
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