I had this on my G, used brasso and a leather shammy, took a while and looks 10x better than what it did.
Sanding, polishing etc will give the best results though.

 

Depending on how badly scratched and discoloured the plastic has become there is a product you could try...Tamiya (the plastic model and radio-controlled car company) make a polishing compound in tubes in coarse,fine and finish grades for cleaning scratches from model aircraft canopies and polishing paintwork. I recently used some to take a couple of marks out of my speedo. glazing and it's very effective,also at is intended for plastic it is unlikely to cause any further damage.
Try looking on ebay..it's called Tamiya polishing compound and the price varies quite a lot,cheapest usually seems to be Japan or other eastern countries.

Def. worth a shot I reckon.

 

Look in the forsale section at the headlights on there someone suggested toothpaste guna try it my self when I get chance could be worth a shot

 

Just told cam this and it it worked.

Get some tooth paste, layer it on..Leave it on for a few mins and then wipe off..does the trick

 

Toothpaste does the trick as a simple way of cleaning them. If you have cutting compound use that and then polish it up and they should be as good as new.

 

Yeah kinda worked as I just saw it. Although turns out I have a 2" square section which is gonna be irrepairable and it's too deep. I may try and sand it right back with fine wet and dry and scratch remover polish to see if that will shift them! Cheers guys!!

 

Thats good. I think you will need too add colgate, aquafresh, sensodyne to your detailing kit lol

 

anything with an abrasive will polish the marks out.

But i'd start with wet and dry. To get them crystal clear you need a machine polisher afterwards.

 

How much can I work into them with wet and dry literally until the bigger scratch Is out? Then machine buffer with a cutting compound? (or a hell of a lot of elbow grease :lol

 

Yeah just keep going until the scratch is out. Finish with 1200 wet and dry, then machine polish with compound.

By hand will take forever and never be as good a finish. Even the most experienced knuckle shuffler won't have the ability to match the finish of a machine polish