Hi Geoff,
You are not alone with these problems, we bought a new Argente 550-4 in September 2004 which had new front and rear panels just after its first service, our dealer [Reeds of Leeds] were really good and the panels were ordered and fitted quite quickly, there was a slight delay as a couple of vans had to go in first to have thiers done, it is a common fault and our dealer told me ours was done at the right time as the new 'fix' is to fill the cracks and not replace the faulty panels. Also have a good look at your tyres as ours were cracking at 22 months old and we had to replace them, they were 'Maxmiler' which is the cheap budget brand Avondale seem to favour. Our floor has not yet delaminated but the water heater was not wired correctly, the cushions are sagging, the oven retaining screws keep falling out, the blinds fall to bits, it had a problem blowing fuses which stopped the water heater, cooker ignition, heater and blown air working. Bits of trim have come adrift, the tv aerial was another cheap n nasty which we replaced with a Status, the front locker door drops on the handbrake, and the locker fills with water [cured by me drilling a few holes in the base] We have been lucky that our dealer is helpfull unfortunately Avondale are not and so some problems are still there as Avondales warranty does not cover them which is disgusting as the van is only 2 years old. We now have no faith in the van and on Saturday at last it is going, we will be glad to see the back of it and we would buy a tent before another Avondale.
spj.