Hi guys, sorry if I'm in the wrong thread, but I'm new on here. I was wondering if anyone could point me in the right direction in regards to paint work on my 53 plate E Class.

I have paint bubbling off on my front bumper and at the bottom of my O/S/R door (in the very bottom corner). I was wondering if Mercedes would cover this under warranty!!

Also my wheels are badly corroded and they're not even 3 years old. The last owner (a friend) bought the car from new and upgraded the wheels. They began to corrode so he got them changed under warranty. The question is, will they give warranty on a replaced part?
I'm really disappointed with the standard of paint work on the car and the wheels. I had an Audi before this and the paint work all around was first class compared to this. There was me thinking I was stepping up in "class".