What does code P1179 mean on BMW vehicles?
The upstream oxygen sensor on bank 2 switches too slowly from rich to lean conditions.
OBD-II Code BMW
P1179 — BMW — Oxygen Sensor Signal Circuit Slow Switching from Rich to Lean (Bank 2 Sensor 1)
The upstream oxygen sensor on bank 2 switches too slowly from rich to lean conditions.
Common symptoms
- Check engine light
Possible causes
- Faulty oxygen sensor
Initial recommendation
Inspect and replace oxygen sensor if necessary.
Safety notice
This information is for guidance only. Brand-specific codes may vary by model, year, engine, transmission and vehicle configuration. It does not replace a physical inspection or diagnosis by a qualified mechanic. If the vehicle is unsafe to operate, avoid driving it and seek professional inspection.
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