I had another go at the front light units on the Vito today. I'd previously tried a Holts headlight restoration kit ... I only did one side with it, and wasn't happy with the results. It uses wet sanding with progressively finer grades of paper on a circular backing plate that you use in a drill, followed by polishing with a foam pad on the same backing plate, then finally a clear sealer. I found the flat sanding disk extremely difficult to use due to the compound curves on these light units, and despite spending the best part of an afternoon on it I still ended up with fine scratches on the surface ... giving a 'smeary' effect.
So I ordered some bits and pieces from CleanYourCar:
3" foam backing disk
'Heavy cut' rotary pad & cutting compound
Polishing pad & polish
Microfibre cloth
I also got 500 ml of IPA and a plant spray (you need 50:50 IPA & water to rinse off the polish). From the Holts kit I used the M14 thread drill adapter (this screws into the backing disk), the can of spray sealant, and the two polishing cloths.
Much happier with the results now. I wasn't really sure how much pressure to use and what speed on the drill and could possibly have been a bit more aggressive, but I think it turned out OK.
Nearside unit as it was to start with, after washing & drying (this was the worst one):
After the Holts kit:
![cap7.JPG cap7.JPG](https://forums.mbclub.co.uk/data/attachments/118/118292-d5f831fc711ea3d6681f6b1772419289.jpg?hash=1fgx_HEeo9)
![cap8.JPG cap8.JPG](https://forums.mbclub.co.uk/data/attachments/118/118293-9ff402df521d27f70b6b637f67939258.jpg?hash=n_QC31IdJ_)
And after re-doing today:
![cap1.JPG cap1.JPG](https://forums.mbclub.co.uk/data/attachments/118/118284-65df85e21e8a5e2410098b63fc4fa78d.jpg?hash=Zd-F4h6KXi)
Offside unit to start with (not as bad as the nearside one, but similar fine crazing at the top and in front of the headlight bulbs):
And after treating today:
![cap3.JPG cap3.JPG](https://forums.mbclub.co.uk/data/attachments/118/118286-520d4dfbb114bf4c601d03e3ccb92a25.jpg?hash=Ug1N-7EUv0)
![cap4.JPG cap4.JPG](https://forums.mbclub.co.uk/data/attachments/118/118287-e73dbd92dd1a3acbaee4e2cdc08c1319.jpg?hash=5z29kt0aOs)