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General E46 Forum
This is the place to get answers, opinions and everything you need related to your E46 (sedan, coupe, convertible and wagon) BMW!

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Old 12-07-2012, 02:55 PM   #1
John949
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Join Date: Mar 2011
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My Ride: E330 CI
Steering Noise Culprit Aprehended

Among the steering problems I'm rying to solve has been a sort creaking / squeaking noise when turning the wheel, which was worse when the car was cold. The noise sounded a bit like the noise you get when there is air in the power steering system. Anyway it turned out to be the non-return valve that is built into the pressure hose banjo bolt. Can't quite see what has happened but the valve plate is off centre and the spring has become detached and is sticking up into the top of the bolt.

The noise is probably the flow cavitating as the valve isn't opening probably.
Not sure whether it affects the steering feel because I changed the rack at the same time. No idea how common this is, I'm guessing it's fairly rare but a cheap part that's easy to replace.
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Old 12-07-2012, 03:33 PM   #2
Alex323Ci
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any photo of this for future people's reference?
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Old 12-12-2012, 04:27 AM   #3
John949
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Spoke too soon! The noise has returned. I'll post back if I ever track it down.
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Old 12-12-2012, 05:20 AM   #4
paraklas
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Noise origin may be deceiving. Can you put the car on ramps and freely turn the steering wheel in order to identify the noise? when the engine is off it is much easier. Similar noises come from failing ball joints, steering shaft U-joint, etc.
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