OBD-II code · Powertrain (generic)
P0217 Engine Coolant Over Temperature Condition
Coolant temperature exceeded the safe maximum. Engine overheating event detected — risk of head gasket damage or seizure.
Is it safe to drive with P0217?
The car may go into limp mode (reduced power). Get it diagnosed before a long trip.
Common causes
- Most likelyThermostat stuck closed
- Most likelyLow coolant level (leak)
- PossibleWater pump failed
Symptoms
- Check engine light on
- Cooling fan runs constantly or not at all
- Cabin heater weak or excessively hot
- Possible long warm-up time or hard cold start
Repair at a glance
- Difficulty
- Medium
- DIY friendly
- Often, with basic tools
- Typical labour
- 0.5–8 h
- Emissions test
- Likely to fail
- Parts involved
- Cooling System, Thermostat, Water Pump, Radiator
Code data: OBDex open dataset (CC0). Labour times are typical ranges, not a quote.