Yep, mine are pretty much the same at similar miles. A brillo pad will remove the carbon deposits and some (Autoglym for me) metal polish will bring the shine back but it does take some real effort.
Nice one ,dont forget to dry the inside and seal as i never the next day they where rusty as ,was so mad ahhhh
If anyone was going to have them spotless it was going to be you John! Time on your hands old boy!!
Mine were replaced under warranty. Started to go off after 4k mls. Pairs of tips is £34. In the display cabinet thats the same price as an Audi pen!!
Washed the RS today. Got the wire wool out and metal polish. Rubbed and rubbed until my fingers were nearly bleeding.. I just couldn't get them to come good. They almost look pitted in placed. Cars only done 12k.