Noisy VW DCC dampers

[Sensibleboy]

Does anybody know much about these dampers?

My car needed some new dampers so they were replaced with some Monroe electronic dampers which is who are the OEM supplier from new.

Over sharp bumps there's a slight knock/noise . I didn't think the new dampers would be to blame for the noise so after replacing pretty much every suspension component the noise remained.

Short story is if I unplug either electrical connector the noise goes away!

I think when one damper is unplugged it defaults all dampers to their normal setting.

Does anybody know if the dampers need coding to the car or anything like that?

I'm trying to understand if the suspension control ECU had a problem whether that could be to blame for the damper noise. There is no warnings light to suggest there's a problem.

[Sensibleboy]

The car has had literally every arm, bush and drop link replaced. It was also driven with the ARB removed and the noise remained.

The suspension is silent with either damper unplugged. It ride perfectly well too so the dampers still do their job.

The noise does change slightly when the suspension is switched between comfort, normal and sport but is definitely still there on sharp bumps.

There is still resistance through the dampers when they are off the car so offer some damping ability when unplugged. It's hard to tell how much this changes when fitted to the car and plugged in.

Edited by Sensibleboy on Tuesday 24th January 10:17

[Sensibleboy]

It's very hard to tell which side it is. It could be from both!

No noise from the front though.

[Sensibleboy]

They were primed prior to fitting. I imagine they will be twin tube dampers.

[Sensibleboy]

I never resolved the problem. I was satisfied that there was no safety issue and that maybe it was a characteristic of the dampers for some unknown reason.
I sold the car in the end.