Skip to content

O2 Sensor Circuit Malfunction Bank2 Sensor1 on BMW

BMW

Verified1 source
1 source
  • Official data (NHTSA)official_feed

What P0150 means

Caution — monitor closely

The upstream oxygen sensor circuit on bank 2 is reading outside its expected range. On BMW V-engines this is the mirrored bank-2 equivalent of the same wiring/exhaust issues seen on bank 1.

Driveability assessment not yet available. Get a personalized AI Second Opinion for your exact car.

General information, not a diagnosis or repair instruction. Always confirm with a qualified mechanic for your specific vehicle.

Common causes

  • O2 Sensor Circuit Malfunction Bank2 Sensor1

What to check first

  1. Scan-tool live O2 sensor data bank 2
  2. Inspect exhaust manifold bank 2
Cost data coming soonUpload your estimate to check if the price is fair
Was this page helpful?