P2BC1Charge Air Cooler Coolant Pump A Stuck/Stalled
- Generic OBD-II code · Powertrain
- Turns on the check-engine light
- Matters for the ITP
- Can trigger limp mode
- How the car detects it
- P2BC1 means the electric pump that circulates coolant through the charge air cooler loop is powered, but its rotor will not turn or stops under load; the pump electronics see high current at little or no speed and report this to the engine module. Audi documents the code as P2BC100 in bulletin 2080825 for 2025–2026 A5/S5 and Q5 models with engine codes DXBA and DXCA: after the car stood unused longer than two months, pump V188 may stick. The MIL and a reduced-power message appear. If the pump runs again on an actuator test and the entry was only intermittent, it is cleared, otherwise the pump is replaced. FCA lists P2BC1-00 on 2018–2019 Alfa Romeo Giulia and Stelvio 2.0 turbos among codes addressed by a software flash. Over- and underspeed of the same pump are P2B83 and P2B84.
- What you may notice
- Check engine light, often with a reduced-power message
- Hot charge air and less power under load
- No running noise from the pump during an actuator test
- Likely causes
- LikelyRotor stuck after a long standstill (Audi bulletin 2080825)
- PossibleDebris, deposits or a worn bearing blocking the impeller
- RareEngine module software needing an update (FCA bulletins for Giulia/Stelvio)
- RareIce in the loop due to insufficient antifreeze
- 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: €0 – €800
- Related codes
Explanation from obdex (CC0), exactly as the app shows it. Guidance only; confirm with a workshop.