Bit of background - bought my A4 B8 2009 about a month ago, everything was fine till I washed the car on Saturday. I noticed white cloud shaped marks on the boot, thought it maybe water marks so wiped it dry with the leather but still remained. Clayed the car waxed it and it disappeared, i can still see a faint mark and will probably be visable again when i wash it, So my question is should i be thankful its gone when waxed or is the issue something I need to get sorted under warranty. Cheers in advance. Rich.