knocking sound - MBWorld.org Forums

07-21-2017, 11:43 AM

#1

mikepass

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s550

knocking sound

I have a 2007 s550, after sitting awhile some hours when a drive it I can hear and feel a knocking sound in the right front wheel area. After driven for a few minutes or miles it goes away and back to normal (quiet). until the next time a drive it.

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07-24-2017, 11:06 AM

#2

MJ50

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bone stock E55 AMG

moved to W221 forum...

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07-24-2017, 11:31 AM

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alx

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Quote:

Originally Posted by mikepass

I have a 2007 s550, after sitting awhile some hours when a drive it I can hear and feel a knocking sound in the right front wheel area. After driven for a few minutes or miles it goes away and back to normal (quiet). until the next time a drive it.

does it do it at idle or only when going down the road? is it 4-matic? does it do it when engine hot?

could be many things