Bang from rear with rough roads/ potholes [Resolved]

[Fluff34567]

Hi, I noticed I have a loud "bang, bang" from the rear whenever I go over a pothole, rough surface, whenever the suspension has to move a little bit harder. Doesn't seem to matter which wheel goes over a bump but I'm suspecting it's the RH rear area making the noise.

Definitely from the rear, had a look at spare wheel carrier and anti roll bar.
Springs are not broken- std suspension btw.

Nothing obvious found.. what's the common issues with standard suspension noise?

 

[Loz]

How old?
What suspension?

Check rear shock bushes.

 

[Fluff34567]

How old?
What suspension?

Check rear shock bushes.

Hi Loz,

It's a 2016 4m, caravelle but don't think the 4m makes a difference.

 

[Loz]

Hi Loz,

It's a 2016 4m, caravelle but don't think the 4m makes a difference.

at that age, the rear shock bushes are probably shot. (Also an MOT failure) as I found out..

 

[Fluff34567]

Hmmmm, will get it checked, just had a service at whats meant to be a excellent independent mid June so will be miffed if they didn't spot that.

 

[Bryn23]

Loz what size were your bushes on the seikel rear shocks?

 

[Fluff34567]

Solved!!! Brembo pads are smaller than the originals allowing them to bounce about.

Pads out, anti seize and squeeze the anti rattle spring shims with needle nose pliers and all good.

 

[Loz]

Loz what size were your bushes on the seikel rear shocks?

I can’t remember, Oli @BognorMotors did them for me.

 

[BognorMotors]

They were the standard rear Bilstein bushes(from
Memory) Bilstein make the seikel shocks.

 

[CRS Performance]

According to the Seigel web site their shocks use KONI or MONROE dampers for Transporters , they did use Bilstein a long time ago but dropped them for the KONI Raid and Heavy track type shocks . Koni dont have big issues with their bushes because the dampers are a little smoother so they dont put excessive stress on the Bushes .

 

[Loz]

My Seikel were Bilsteins

 

[CRS Performance]

My Seikel were Bilsteins

Was it a lift kit ?? if so by how far , ??

 

[Loz]

Was it a lift kit ?? if so by how far , ??

HD Lift 2"