I've had my RS6 since last November and regularly scan it using VCDS and so far it's been fault free Yesterday i did a full scan and got fault code,
18393 Coolant Control Module 2 (J671) Malfunction P1985 002 Lower Limit Exceeded Intermittent.
I cleared the fault and went for a drive and it came back. Does anyone know what and where this module is? I've looked through ETKA and can't find it. The car drives fine and the temperature rises to 90 and stays there, the fans appear to work ok although i have to put the aircon on to get then to work as i haven't got the engine hot enough. I have checked the fuses.