P057FBattery A State of Charge Performance
- Generic OBD-II code · Powertrain
- Turns on the check-engine light
- Matters for the ITP
- Can trigger limp mode
- How the car detects it
- P057F means the state of charge of battery A behaves implausibly or leaves its expected range – a performance code, not a circuit fault. Its documented use is on plug-in hybrids of the VW group: the 2025 Porsche Panamera E-Hybrid and Bentley Continental and Flying Spur set it in the high-voltage battery controller, which requests the warning lamp; both causes were software. CARB requires hybrids to monitor battery and charging performance. A use for a 12 V battery sensor was not found; GM and Ford do not list P057F.
- What you may notice
- Check engine light on
- Hybrid function restricted (less electric range or power)
- State of charge display jumping
- Likely causes
- LikelySoftware of the battery controller (state of charge miscalculated)
- PossibleState of charge not relearned after deep discharge, long standstill or disconnection
- RareBattery ageing or cell imbalance
- RareFaulty current or voltage measurement in the battery system
- Inspection (ITP)
- Matters for the ITP. While the check-engine light is on, the car fails the emissions check.
- Repair
- Medium · Usually a job for a workshop.Typical cost: €80 – €300
- Related codes
Explanation from obdex (CC0), exactly as the app shows it. Guidance only; confirm with a workshop.