Well I was in the process of taking the tim off my MK2 GTI in order to spray it (think they come up well)

When I found this behind the skirt on the drivers side just behind the door




At first I thought the car had taken a kicking and someone had repaired it badly. Then I opened the door and found a spot of rust, after clearing this away I hit more filler


It looks like it has taken a serious beating at some point and bent the sill. What would you do Sand down the filler so its flat and build up any dips propaly and respray or sand all the way back to the metal (if there is any)?
Also found a load off rust around the wheel arches However that has now been sanded back and primed.


I also have a couple of dents that are curved outwards (same side) Any ideas on how to flatten them off?

As well as this one right in the curve of the door!

Cheers
Dave