[Sie!]

Morning all,

Something I have been wanting to do for years, the headliner in my B2 80 is in dire need of cleaning, I attempted it a little last year on a discreet patch, unfortunately made it look worse...

I cannot see a way of removing it due to the windscreen rubbers etc, so I will need to clean it in situ (plus its in great shape apart from 37 years of grub), is there any recommended products or ways you guys have tried and succeeded in cleaning one?

Its a light material and flexible, not fabric.

Any help or guidance as always much appreciated.