I have a couple of rust holes on the left rear side of my Kombi - source is from the battery area. I am looking for guidance on how to best deal with it.

Many thanks.

Sulla

Poke all of the areas from the inside with a screwdriver until the hole is as big as you can get

strip all of the paint off the outside area plus an extra 20cm in every direction

cut out the area that is littered with holes and any other thin area you can see from the inside.

weld a piece of sheet metal in. If you don't have the right shape, an old damaged door off another vehicle may have enough area that is undamaged for you to cut out and use. It will also give you metal of the same thickness and a slight curve.

tap it up nice and smooth, fill, prime, putty, paint

treat the inside with rust converter, prime, paint and coat with fishoil, tar or whatever you decide on.