How do I clean Bamboo Beige?

A local garage have left the interior of my Octy grubby following some work:mad: .

This includes the beige door panels (cloth), beige plastic under light switch

and the passenger seat (looks like an oil mark)

I know...Its a lot of beige !!

Any ideas on best products to use for seats/plastics gladly accepted. I keep the car really tidy and clean, so this is teh first I've had to do the upholstery.

Cheers

Des