Major areas for concern on all VW Campers are the front wheel arches and inside the front wheel arch itself.
The Front arches are extremely prone to rotting away. A huge problem with this is that over the years these get budged up and people end up either filling them or sticking a cheap outer repair panel on them. These are awful and very simply hide the rust and rot underneath.
If you are considering buy a Camper van make sure it has had complete front wheel arches fitted. If your van need front arches there are two choices.
1. A replacement entire front arch
2. A Genuine VW entire front arch
If you want to spend a couple of days to fitting the arch then buy the replacement. If you need it to fit and be of a decent quality buy the genuine arch. These are a bit more expensive but will save you hour and hours of labor guaranteed.