I'm going to remove the left side door cladding to inspect the door more closely and also check the other points that have been raised above.

How hard to remove the door cladding? Any special tools required? I know I will need to order replacement clips to refasten the cladding when I am done.

In terms of fixing the rust spot on the door I'm wondering how to go about touching it up. If I sand it down to bare metal and then prime and touch it up paint will that suffice or do I need to lay down a rust product to ensure the rust does not reappear and spread. I've read reviews on some rust converters and most reviews say they don't work.

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1989 300CE