My Fabia Elegance 1.6 TDI on a 10-plate has the small tell tale corrosion signs starting on the tailgate. Gave the paintwork a proper clean, degrease, clay and wax top coat today as it was a great day for being out and playing with cars. Remind me not to use Collinite 915 (absolute sod of a product to use)... Meguiar's carnuba wax is better.   I'll post pictures tomorrow, but wondered what other owners are seeing? This is on 85k mile car that gets quite a lot of DIY attention. Granted