Overheat
- Not enough coolant in the system (Section 1 and 3)
- Thermostat defective (Section 3)
- Clogged radiator core (Section 3)
- Faulty cooling fan or thermoviscous coupling (Section 3)
- Expansion tank cap damaged (Section 3)
- Toothed drive belt worn or incorrectly tensioned (Section 2)
- Ignition timing incorrectly adjusted (Section 1)
- Temperature sensor/indicator gives incorrect readings (Section 3)
- Air lock in the cooling system (Section 1)
Hypothermia
External coolant leak
- Worn or damaged hoses or hose clamps (Section 1)
- Radiator core or heater matrix leaking (Section 3)
- Expansion tank cap damaged (Section 3)
- Leaking water pump seal (Section 3)
- Boiling due to overheating (Section 3)
- Leaking radiator cap (Section 3)