P0218 — Engine Overtemp Condition
Drivable short-term, but fix now to avoid damage.
What P0218 means
This code means the engine computer recorded that the engine temperature rose above its safe limit. Overheating can come from low coolant, a failing thermostat, a bad water pump, a clogged radiator, or a stuck cooling fan, and it can cause major engine damage if not addressed. Repairs depend on the cause and usually start with checking the cooling system and coolant level.
Common symptoms
- Check engine light is on
- Temperature gauge reading high or in the red
- Steam or coolant smell from under the hood
- Loss of power or engine going into reduced-power mode
- Coolant leaking or low coolant level
Common causes
- Low coolant level or coolant leak
- Failed thermostat stuck closed
- Faulty water pump
- Clogged or damaged radiator
- Cooling fan or fan circuit not working
Typical repair cost
$100 – $1200
Varies by vehicle and root cause.
Frequently asked questions
Can I keep driving with a P0218 code?
No, you shouldn't. Driving an overheating engine risks severe damage. Pull over safely, let it cool, and have it checked before driving again.
How much does it cost to fix a P0218 code?
It varies widely, from around $100 for a coolant top-off or thermostat to over $1,200 if there's water pump or radiator damage. A proper diagnosis pinpoints the real cause.
Is a P0218 code serious?
Yes, very. Engine overheating is one of the fastest ways to cause major engine damage, so it should be treated as urgent.
What should I do right away if I see a P0218 code?
Safely pull over, turn off the engine, and let it cool. Check the coolant level once it's cool, and don't drive again until the cooling system is inspected.