BMW has a battery cable recall for US models. Not for the rest of the world cars though. Maybe this pdf will help you out. I thought that the problem was the battery plus cable when it gets close to the fuse box in the passenger glove box area. In the truck the box is made of plastic... so that cable can't ground out on anything back there.
Have you thought to pull fault codes by using a spare battery or jump box and see IF you had any over charging issues from the Alternator or maybe a fault that could point you in the right direction.
Good Luck,
Dackel
PS: I fixed/added your pics to your original post. Just use the "Advanced Mode" when posting and hit the paper clip icon to add/upload pics!
