OBD-II code · Powertrain (generic, extended)
P2B83 Charge Air Cooler Coolant Pump A Overspeed/Air In System
The charge air cooler coolant pump A runs above the calibrated maximum speed without producing the expected flow. Indicates air pocket in the coolant loop.
Is it safe to drive with P2B83?
The car may go into limp mode (reduced power). Get it diagnosed before a long trip.
Common causes
- Most likelyAir pocket in coolant loop
- PossibleCoolant level low
Repair at a glance
- Difficulty
- Medium
- DIY friendly
- Best left to a mechanic
- Typical labour
- 1–4 h
- Emissions test
- Usually unaffected
- Parts involved
- Cac Coolant Pump A, Cac Coolant Loop
Related codes
- P2CB1Charge Air Cooler Coolant Pump B Overspeed/Air In System
- P2B80Turbocharger/Supercharger Boost Control Module B Calibration Not Learned/Programmed
- P2B81Wastegate Position Sensor A Circuit Performance
- P2B82Wastegate Position Sensor B Circuit Performance
- P2B84Charge Air Cooler Coolant Pump A Underspeed
- P2B85Engine Coolant Pump Underspeed
- P2B86Coolant Pump A Overspeed/Air in System
Code data: OBDex open dataset (CC0). Labour times are typical ranges, not a quote.