paddymm
17-04-2007, 09:58 PM
VAGCOM and coolant warnings. Hopefully there will be a VAGCOM guru still around at this time of night. Heres a bit of background first. I have the cable and the older software which seems to work fine on my old A4. However on my newer 2002 1.8T Passat the 'stop the car the coolant temp is too high' warning came up and the temp went right into the red before I could stop on the M way. All very good as the car is still under VW used car warranty. I Spoke to the guys at my local VW dealer and it is all booked in for a look see on Thursday. Now the guy at VW says that the warranty only covers for a limited period of diagnostic work (approx 15 mins) which in my opinion is b$%£ox.. ( has anyone experienced this before ?) So in an attempt at preventing my wallet being taken over by VW I hooked up the vag com and to my surprise no fault code appears. Is this normal and should the VAG COM not have listed the warning for the coolant temp being too high and should it be able to diagnose a faulty temp sensor / fan. There is water in the tank and the viscous fan is OK and the elec fan only cuts in when Aircon is on. Am I being too hopeful or am I looking in the wrong place on VAG COM in the first place. (Engine controller as there doesnt appear to be a cooling controller)
Paddy
Paddy