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Suspension knock
#1
My 2009 berlingo b9. Do anyone have problem with knocking driving on humps?

I have change swaybars, swaybar rubber, tierod, lower ball joint, complete suspension. And still got the knocking.
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#2
Anti roll bar where it runs across the front subframe?

Peter
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#3
When you say complete suspension, did that include the upper strut mounts/bearings?
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#4
Strut top mounts / bushes / bearings

Edit...just saw oilyrags post above. He already said what I was thinking.
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#5
I know mine was on an M59 but having done strut tops, drop links etc and still having the knocking I discovered that the anti roll bar bushes (the nes that hold the bar to the subframe) were worn and the bar was touching the subframe in certain circumstances and it came across as a knock. I replaced those bushes and it fixed it but be warned it is a PITA of a job as you have to lower the subframe a bit to gain access

Peter
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#6
Good shout Pete, also worth checking.
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#7
Just something to check when your doing the top mounts, check for movement in the shock absorber by holding the top of the piston and the strut and just try and rock it back and forth. This can cause a knocking and/or create a “click” feel through the Car when moving off in traffic
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#8
(04-08-2022, 02:41 PM)Tikki Wrote:  My 2009 berlingo b9. Do anyone have problem with knocking driving on humps?

I have change swaybars, swaybar rubber, tierod, lower ball joint, complete suspension. And still got the knocking.

Yes, dealer checked everything possible couldn’t find cause. Had it on normal ramps, MOT ramps, bar everywhere but nothing.
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