Well i have to say a big thank you to Black GTI and totally agree with his recent comment on what are the best cleaning products to get the black bumper trim nice and shiny, and also looking new again.
Well after his comments on Armour All (i think its called that - not sure if its armour fend now i think about it) I bought some - and it is bloody good. My black trim actually looks great, not grey and faded like before.
I tried back to black which is nasty ineffective stuff and also foam based ones but they're just patchy. Armour All takes 3 applications or so with the first ones half hour apart, so it takes a little time to apply, but follow it and it makes em look great.
You can also apply it on the interior and it looks great there too - not at all sticky.
I also Tyre foamed my tyres, and t-cut, polished and waxed the golf and looks absolutely mint. i'm just chuffed and had to tell someone!