What does code P1111 mean on BMW vehicles?
The radiator outlet coolant temperature sensor reports a lower than expected signal.
OBD-II Code BMW
P1111 — BMW — Engine Coolant Temperature Radiator Outlet Sensor Low Input
The radiator outlet coolant temperature sensor reports a lower than expected signal.
Common symptoms
- Incorrect temperature readings
Possible causes
- Faulty temperature sensor
- wiring short to ground
Initial recommendation
Inspect ECT sensor and wiring, replace 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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