Picked up an A3 2.0tdi on Monday and it has a fuel leak from the top of the fuel pump under the bonnet. This has led to fuel splashing all over the engine bay - car is back at the garage I bought it from (a Merc main dealer) to be sorted. Am I right in thinking the auxiliary belts will need replacing as they will have been contaminated with the fuel? I'll obviously expect them to steam clean the engine bay & anywhere else covered in diesel. Anything else I shoul dbe getting them to do / check? Thanks.