Is it easy to remove the foam? Should do mine as I don't like the idea of a water trap behind the wing.

 

Your airbox needs removing to get to it but simple enough. Mine (2.4d engine) had one metal bolt on the right, easy to see, and the rest were just rubber push on/pull off mountings to the inside wing. Obviously take clip on lid off first. I could manipulate the box enough to get it out of the way but complete removal was too tight without removing something else. Foam just pulls out. You could probably see condition of foam through the slats with a torch beforehand. Even if you want to put the foam back if it's not mossy, it's worth at least inspecting the inner wing for mud and cleaning it out.

 

Mine's got thick, lush moss growing in there! So may do this too soon.

From looking online seems fairly simply to remove the panel. What sealant do I need when putting it back?

 

Thanx for the heads up on this mod as I have moss growing out of mineT:

 

I would have used gaffa tape if I had some cos the mesh from eBay is fairly oversized for the vent (if done carefully it wouldn't be visible on the edges from the outside). I just used superglue (not ideal as not much mesh can make contact with the body, but it's still stuck in place after several journeys so it's worked OK). Silkaflex or similar is advised by the eBay seller.

 

Mine disintegrated when I took the wing off and I haven't bothered replacing it with anything. It'll be alright... Won't it?

 

The mesh is just to help stop large debris getting in like leaves I think. Your air filter will catch anything that gets in anyway so not a big worry. Maybe take out and check filter & check bottom of box more often though, wouldn't hurt.