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BMW 3-Series (E90 E92) Forum > E90 / E92 / E93 3-series Technical Forums > All-Wheel-Drive (Xi / xDrive) Talk > Grinding noise when turning!



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      06-09-2014, 08:32 PM   #1
zbhanji
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Grinding noise when turning!

So for the past couple months ive been noticing a loud grind when turning at slow speeds. I read a few posts and I was sure that it was the drive shaft that was the problem. I took it to one of my buddies shops and he told me that he thinks its the transfer case. I know for a fact its not the wheel bearings. I was jsut wondering if anyone has had experience with this. Does the transfer case usually grind when turning? The only time i hear a grind is when im turning. There is no grind when im driving straight. If any one has any input it would be greatly appreciated!

Oh and i hear a CLUNK when picking up from a red light. I drive a 6 speed manual if that helps (2007 335xi sedan)
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      06-16-2014, 01:03 AM   #2
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Power steering fluid may be low. I just changed mine today in like 5 minutes. Worth a shot.
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      06-18-2014, 09:03 PM   #3
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Quote:
Originally Posted by zbhanji
So for the past couple months ive been noticing a loud grind when turning at slow speeds. I read a few posts and I was sure that it was the drive shaft that was the problem. I took it to one of my buddies shops and he told me that he thinks its the transfer case. I know for a fact its not the wheel bearings. I was jsut wondering if anyone has had experience with this. Does the transfer case usually grind when turning? The only time i hear a grind is when im turning. There is no grind when im driving straight. If any one has any input it would be greatly appreciated!

Oh and i hear a CLUNK when picking up from a red light. I drive a 6 speed manual if that helps (2007 335xi sedan)
How do you know it isn't wheel bearings?
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      08-14-2014, 04:35 PM   #4
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Same problem here, turning at low speeds, as in a parking garage.

Started when I picked it up from the dealership after they replaced some gaskets.

Dealer wants to replace the transfer case actuator motor, but I have no dash lights to support that theory (common problem in other BMW xDrive models).

The symptoms are the same as has been described for the M3 REAR differential - probably coincidentally, unless the front differential can have the same issue. The M3 SIB says to use a special differential fluid, to fix the M3 problem.

Edit - I've read the power steering fluid would cause a problem at a max turn of the steering wheel - not the case with mine.
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      08-22-2014, 10:04 PM   #5
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Are you running aftermarket wheels? I've been researching some things on wheel sizes and if the wheels are not within certain specs, it could cause similar issues
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      08-26-2014, 10:37 PM   #6
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I had a similar issue. It went away when i changed the xfer case fluid and reset the xfer case using the BT Tool. I suspect the xfer case was clutching unnecessarily at low speeds while turning (do not know why).
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      03-10-2015, 09:30 AM   #7
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Any update on this? I have the same symptoms on my 335xi.
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      03-10-2015, 09:28 PM   #8
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I had the same problem in my 2006 e90 330xi 6MT. No lights on dash, just grinding when turning wheel left/right at slow speed, fine when straight and when at speed.

Took it to BMW for diagnosis and they found it was the Transfer Case, had my Indy tech replace it with a used one under lifetime warranty. Problem is gone! Indy tech pulled old T-case apart and said it was shot. If you want to troubleshoot try to replace transfer case fluid first.

Also, the replacement transfer case was out of a 07 335xi, so it must be a pretty universal part for the xi e90's.

Hope this helps.

Last edited by xStyles; 03-10-2015 at 09:31 PM. Reason: Add info
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