My A3 (facelift) has the typical rust on the bootlid trim above the number plate. I was planning on buying this part and either getting it sprayed or doing a rattle can job on it myself. I used the online ETKA and think the part number is 8D9 827 576 F or with G RU on the end for ready primed. Also once painted and ready to replace, what needs to be done to stop it happening in the future? Cheers.