P0521
Engine Oil Pressure Sensor/Switch Range/Performance
2014-2021 BMW i3 Range Extender 🇬🇧
High SeverityPowertrain
Description
Oil pressure sensor reading is out of expected range.
Symptoms
- Oil pressure gauge erratic
- Warning light flickering
Common Causes
- Sensor fault
- Oil pressure fluctuating
- Worn oil pump
- Wrong viscosity oil
Diagnostic Steps
- Test with mechanical gauge
- Check oil level and condition
- Test sensor
- Verify correct oil viscosity
Repair Notes
Verify actual pressure. Replace sensor if pressure is good.
Related Codes
Other Powertrain Codes
- P0070Ambient Air Temperature Sensor Circuit
- P0071Ambient Air Temperature Sensor Range/Performance
- P0072Ambient Air Temperature Sensor Circuit Low
- P0073Ambient Air Temperature Sensor Circuit High
- P0115Engine Coolant Temperature (ECT) Sensor 1 Circuit
- P0116ECT Sensor 1 Circuit Range/Performance
- P0117ECT Sensor 1 Circuit Low Input
- P0118ECT Sensor 1 Circuit High Input
- P0119ECT Sensor 1 Circuit Intermittent
- P0125Insufficient Coolant Temperature for Closed Loop Fuel Control
P0521 on Other Vehicles
Common Questions
What does code P0521 mean on a 2014-2021 BMW i3?
P0521 stands for "Engine Oil Pressure Sensor/Switch Range/Performance". Oil pressure sensor reading is out of expected range.
What are the symptoms of P0521 on a BMW i3?
Common symptoms of P0521 include: Oil pressure gauge erratic, Warning light flickering.
What causes P0521 on a 2014-2021 BMW i3?
Common causes of P0521 include: Sensor fault, Oil pressure fluctuating, Worn oil pump, Wrong viscosity oil.