Teepee Zenith - Peugeot Partnet Teepee Problems - Phil33

I have a 2009 Peugeot Partner Teepee, which suffers from a very poor and noisy ride. It has had work done on the floor and the suspension 'jaws' have been replaced. However, the road noise is high and the when the car hits a pothole the whole car shudders and vibrates. Now to makes things worse it is sometimes making a brake screech type sound when the brakes are not being applied. This is more apparent when the car has been running for a while at higher speeds and is slowing down.

It's been back to the dealers several times but they say that they cannot find any faults with the suspension or wheel bearings. Have any other Tepee owners had similar problems?