But what would you recomend to clean the grease marks from the screen of a Mercedes sat nav. I've tried a few things but it just seams to move it around and leave more grease marks.
Decent glass cleaner and soft MF cloth. You might also want to try specific TV or Computer monitor cleaner. Generally come in kits from decent tv shops like richer sounds etc. I have one i use on a couple of clients cars that seem to smear more than usual
Asda do optical lens wipes which I use for my gregorys, I find they work well and come in handy little individual packets, in the aisle with all the contact lens stuff, Gary