I used Meguiar's Lens renewal kit on my daughter's 03 S-Type back in January, fully aware that I hadn't totally renewed them and that without a UV protective coating the crud would come creeping back. Before and afters are here:

https://www.jaguarforums.com/forum/d...ion-kit-48284/

Last weekend, I went over the car with Meguiar's DA Microfibre Paint correction system coupled to the PC.
http://www.detailedimage.com/wax.php...nus-Item-P522/
I'd read professional detailer reviews prior to purchase regarding some success in lens restoral with the system. Thought, hey...I'm doing the whole car anyway...what's a few lenses added to the labor? So I ran over them first with the polishing compound (D30?) then the finishing wax (D31?) (I may have those backwards) and then finished the whole mess up with a generous application of product M21, Sealant. For me, it is ok, though I know it will keep returning until I get enough lenses in extremis to merit the $125 bottle of UV wipe-on.

Before:





Sorry, I lost one somewhere..

And after:

 

Good job, it's paid a lot

 

Awesome save........D300 & D301 with the MF system really does make a difference..Just make sure you keep them waxed or sealed regularly so they wont crack or check....

Nice job!