Has anyone painted the inside of the main door successfully? Ours is discoloured and has faded in places. What sort of paint did anyone use please?

On any plastic you must use an etch primer. You will be able to buy this from car paint suppliers and you should be able to get a good paint match. The trouble is you need to be good at spray painting to get a good finish. If you are not able to spray you could take off the door and get it done professionally. A costly process and as Colin suggests, think carefully before you go ahead and cost it out.

Thank you for the replies. On balance I don't reckon I will be painting the door. Will think of something to cover the areas which are discoloured.

What colour were the inner doors originally? It's hard to tell from looking at them and I don't recall ever seeing a non-faded one! I intend to do mine; I have some experience with spraying, so should be able to do a good job. One of my grey shelf supports is damaged, so I need to replace/fix that as well. both require removal of the door liner, so that seems to make sense :-))

Very pale cream, then... almost nothing else that colour in my 2005 Triton, so I'm tempted to colour match to the pale grey door handle, which looks a bit strange on the almost yellow door liner...

This shows the door as it was when we bought the van. The worst bits are under the badges which a previous owner had stuck on with blutak. It needs something doing with it, just not sure what! Screenshot_20220421-223654.png - Bild entfernt (keine Rechte)

I haven't painted my Eriba door, however I successfully spray painted my white fitted bedroom furniture doors about 5 years ago which had gone yellow with the sunlight. I used Platikote paint which is made for spraying onto plastic, it has been very durable with no chips or scratches.

Anyone know how to remove the door liner complete? or is it far easier just to mask up in situ? I'd prefer to remove it as spraying would be better when it's horizontal...