P0116: Engine Coolant Temperature Circuit Range/Performance Problem
MediumPowertrainCooling System
What does P0116 mean?
P0116 is a diagnostic trouble code indicating "Engine Coolant Temperature Circuit Range/Performance Problem". The sensor or component is providing readings, but they fall outside the expected operating range. The part may be degraded, contaminated, or experiencing intermittent issues affecting cooling system performance.
Symptoms you may notice
- Check engine light (MIL) illuminated on dashboard
- Engine overheating
- Temperature gauge reading high
- Heater not working properly
- Intermittent warning lights
Estimated repair cost
Typical range in Australia (parts + labour)
$100 – $600 AUD
Common causes
- Worn or contaminated cooling system component
- Vacuum leak or intake air leak
- Clogged filter or restricted flow
- Intermittent electrical connection issue
What should you do?
This code sits in an engine peripheral, typically emissions or forced induction. It will not take braking or steering away, but it can put the car into limp mode, cost you fuel and fail a roadworthy. Book it in rather than clearing it and hoping.
Get a diagnosis for YOUR car
Code P0116 can mean different things depending on your vehicle. TorqueBot gives you a diagnosis specific to your make, model, and year.