P0EDEHybrid/EV Battery Pack C Deterioration
- Generic OBD-II code · Powertrain
- Turns on the check-engine light
- Matters for the ITP
- Can trigger limp mode
- Needs a drive cycle to confirm a fix
- How the car detects it
- P0EDE flags the third battery section, C, as worn out. The controller estimates each section's usable capacity and resistance from voltage behaviour under load and at rest; if section C drifts too far from its new-state values, it is judged deteriorated. CARB asks for a state-of-health monitor and for codes that point to the smallest part a workshop can replace, which is why a multi-module pack gets one code per section. Only Audi documents P0EDE publicly: on the Q5 PHEV it stands for battery group 3 in control unit 008C. A February 2025 reporting obligation, 2076982/1, lists it with the yellow engine lamp and a displayed electric range that is too low, and asks dealers to call technical support before replacing parts. Sections B and D have P0EDD and P0EDF.
- What you may notice
- Check engine lamp on
- Displayed electric range too low
- Electric driving mode cannot be selected or ends early
- Likely causes
- LikelyCells in battery group 3 aged (capacity loss, higher resistance)
- PossibleStrong voltage spread inside the section
- RareController estimate wrong, module still healthy
- Inspection (ITP)
- Matters for the ITP. While the check-engine light is on, the car fails the emissions check.
- Repair
- Workshop only · Usually a job for a workshop.Typical cost: €300 – €5,000
- Related codes
Explanation from obdex (CC0), exactly as the app shows it. Guidance only; confirm with a workshop.