I have a 1999 1.8T A6(APU engine). The viscous fan works perfectly but the electric cooling fan doesn't work. I think it may be the relay but having a problem finding the right one as the diagram in elsawin doesn't quite match the car. I tried to get a spare relay (using part number on relay) from Audi but its been on back order for weeks with now.
Anyone had a similiar problem and couldshed some light on this