Overheat
- Lack of coolant in the system («Weekly checks»),
- Faulty thermostat (sticking in the closed position) (chapter 3).
- Blockage of the core or clogging of the grille (chapter 3).
- Defective electric fan or sensor (chapter 3).
- Sealed cover failure (chapter 3).
- Faulty coolant temperature sensor/gauge (chapter 3).
- Air lock in the cooling system (chapter 3).
- Faulty engine management system (chapter 4).
Hypothermia
External coolant leak
- Damaged hoses or clamps (Chapter 1).
- Leak from radiator core or heater core (chapter 3).
- Sealed cover failure (chapter 3).
- Leak in the coolant pump (chapter 3).
- Boiling liquid due to overheating (chapter 3).
- Leakage through process plugs (chapter 2).
Internal coolant leak
- Leakage through the cylinder head gasket (chapter 2).
- Crack in the cylinder head or cylinder block (chapter 2).