Maikel84

If i put on the interior heater when the engine is going above 90°C it jumps quickly back to 90°C in a couple of seconds but when the car is parked for a night especially below 10°C sometimes I even dont get warm air in the cabine or I only get warm air when taking a turn and then drops back to cold air when i drive straight again.

Did the waterpump solved the problem for overheating and interior heat? I got a Seat ibiza station with the exact same CUSB engine and also the exact same problem sometimes no heat in the cabin but engine is at 90°C and engine heated to 120°C 2 times already and had the thermostat replaced but still have the aame problem. With kind regards Maikel Poppelaars