Hi there. We are stumped. We just bought a 2004 Audi A6 AWD Quattro wagon with 71k miles. The car was working fine until it overheated in traffic. The mechanic took a look and said the code it threw out was a faulty fan control module. We ordered the part, had it replaced and now the mechanics are stumped. The fans are still not coming on. All of the diagnostics are saying that everything is working, yet no fans. Anyone have this problem? Where do we go from here? Thanks.