Help! My son has a 03 VW Golf and it just started overheating when he drives over 50 mph. The engine is cool to the touch (not even warm). It only takes a few minutes for the gauges to show it has cooled off once he has turn off the car. His heater also quit working at the same time. Any suggestions?
Start by checking the coolant level. Check by opening the radiator pressure cap (when the car is completely cooled off) and looking in there, not by looking at the overflow container (if it has one).