P0D8FBattery Charger A Cooling System Performance
- Generic OBD-II code · Powertrain
- Can trigger limp mode
- How the car detects it
- P0D8F means the cooling of on-board charger A is not keeping the unit within its temperature limits, so the charger has to restrict its function. Mercedes documents the code with failure type 97 for the AMG GLE 53 Hybrid (bulletin LI47.70-P-079963, 2025): AC charging stops after about 15 minutes, the cluster reports AC charging inoperative and severely limited hybrid performance, and alongside P0D8F the charger stores an implausibility between its two coolant temperature sensors. The cause was the low-temperature circuits of power electronics and charger with swapped coolant lines; the remedy is to exchange them, not the charger. Air-cooled chargers, such as in Ford's older plug-in hybrids, report overheating under P0D24 instead. Charger B uses P2DB6.
- What you may notice
- AC charging stops after a short time or runs at reduced power
- Warning that AC charging is inoperative
- Hybrid drive performance limited
- Likely causes
- LikelyLow coolant level or air in the charger's cooling circuit
- PossibleCoolant lines connected to the wrong circuit (Mercedes AMG GLE 53 Hybrid)
- PossibleFailed coolant pump of the low-temperature circuit
- RareBlocked low-temperature radiator or inactive cooling fan
- Repair
- Medium · Usually a job for a workshop.Typical cost: €50 – €1,500
- Related codes
Explanation from obdex (CC0), exactly as the app shows it. Guidance only; confirm with a workshop.