Powertrain
generic / SAE
P26CE
Engine Coolant Pump Overspeed/Air In System
The coolant pump speed feedback is higher than the commanded value with no resistance from coolant. Indicates air in the cooling loop or low coolant level so the pump spins free.
SystemPowertrain
Typegeneric / SAE
GroupP2
Range / number6 / CE
Possible causes
- Low coolant level due to leak or improper fill high
- Air pocket trapped in the cooling loop medium
Inspection / repair
- Difficulty: easy
- DIY: possible
- Estimated cost: 30–300 €
- Estimated time: 0.3–2 h
- Component: engine coolant pump
- Component: cooling system
- Component: coolant reservoir
- MIL / check engine light
Sources
References
sae:J2012