P0217: engine coolant over temperature
The engine's coolant has gone above the temperature the computer treats as overheating.
SeverityCriticalRisk of serious damage or danger: do not carry on.
Can you keep driving?Stop and do not driveWhat does P0217 mean?
The coolant temperature sensor reports a temperature beyond the safe limit. Many engines respond by cutting power, switching off the air conditioning or disabling cylinders to protect themselves. Take it at face value until a check proves otherwise: an engine that keeps running hot can warp the cylinder head and blow the head gasket.
What causes P0217?
- Low coolant from a leak
- A radiator fan that does not switch on, or a failed fan relay
- A thermostat stuck closed
- A failing water pump
- A blocked radiator, or a head gasket pushing combustion gas into the coolant
- Less often, a faulty temperature sensor
What to check first for P0217
- Never open the radiator or expansion tank cap while the engine is hot
- Once it has cooled, check the coolant level and look for leaks
- Check that the fan runs when the engine is warm or the air conditioning is on
- Have the cooling system pressure-tested
Can you drive with P0217?
Stop. Pull over as soon as it is safe, switch the engine off and let it cool. Do not keep driving with the temperature high: it is one of the quickest ways to destroy an engine. Have the car towed unless the cause is found and fixed on the spot.
Clear a code only after the fault is fixed. A code that comes back means the cause is still there, and a warning light left on can hide a second fault behind the first.
Codes on this page
- P0217Engine Coolant Over Temperature Condition
Related codes
Checked on · Rafael Soares
These are the generic meanings every manufacturer shares. Each brand adds its own detail, so your car's handbook, its service information and a qualified mechanic have the last word. OdoKeep has no connection with any manufacturer, and the app does not read codes from the car.
