Powertrain
generic / SAE
P2C37
Cold Start Engine Coolant Pump Performance
During cold start, the engine coolant pump does not produce the expected flow. Pump aging combined with high cold viscosity, or pump-disable strategy malfunction.
SystemPowertrain
Typegeneric / SAE
GroupP2
Range / numberC / 37
Possible causes
- Pump output degraded with age high
- Cold coolant viscosity too high medium
Inspection / repair
- Difficulty: hard
- DIY: shop recommended
- Estimated cost: 300–1800 €
- Estimated time: 2–7 h
- Component: engine coolant pump
- Component: engine coolant loop
- MIL / check engine light
- drive cycle required
- limp mode possible
Sources
References
sae:J2012