My girlfriend had sunblock on the back of her legs this weekend and left some noticable but minor residue on the passenger seat of my '07 Cooper. I have the black and red sport seats. I'm sure it won't damage the material but I still want to safely remove the residue.

Should I just use an interior spray cleaner? Suggestions?

 

Just use Lexol cleaner (or similar)... follow with Lexol conditioner.
I have been using Lexol products for 10 years w/o any problems....