Well I have spent most of this morning, and used the best part of a bottle of Autoglym cleaner,guess what still loads of mildew marks. Looked at Renovo site it says the cleaner is for canvas hoods,mercs are mohair I think? So what now any body think that it would be ok to use a carpet cleaning machine? or is there anything alse I could try, i have done the elbow grease thing and I am frankly disapointed.