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zort zort is offline
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Join Date: Jun 2016
Car: e90 335i
Default Suspension knock - 08-01-2018, 11:51 AM

Hey Guys,

I need some guidance understanding the front suspension of a 2007 e90. On normal roads with pot holes etc there is no problem. However once I make a sharp right into the driveway you hear a knock once the wheel dips for the drain.

I don't understand why this would not happen with regular holes not turning.

All the same I check the suspension and all seems fine however since this is only happening on a turn where should I be looking specifically.

Thanks in advance.
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LessIsMore LessIsMore is offline
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Posts: 1,184
Join Date: Aug 2012
Car: 2009 535i Sport SAT
Default 08-02-2018, 11:45 AM

It's hard for someone on the internet to diagnose with that little info.

What checks did you do?

Jack up the car, get under, and look for worn/cracked rubber bushings, torn ball joint boots, and check the tie-rod play, etc. take pics, let us know what you see.

Or take it somewhere for free diagnosis, and let us know what they say.

2017 AMG C63 - JB4 - 11.69 @ 127 (dragy)
2009 BMW 535i - 548 whp - sold
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zort zort is offline
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Posts: 184
Join Date: Jun 2016
Car: e90 335i
Default 08-02-2018, 12:13 PM

Fully understand. Honestly I was hoping that no knock under normal driving conditions vs knock on a hard turn would have helped.

Will do the check.

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