C0231
Power Steering Fluid Pressure Low
2019-2024 BMW 3 Series G20 2.0L I4 Turbo B48
Moderate SeverityChassisGeneric (SAE)
Description
The power steering fluid pressure is below the minimum required for adequate assist.
Symptoms
- Heavy steering especially at low speeds
- Whining noise from power steering pump
- Steering assist reduced
- Fluid foaming visible in reservoir
Common Causes
- Low power steering fluid
- Power steering pump wear
- Drive belt slipping
- Power steering hose restriction
- Air in power steering system
Diagnostic Steps
- Check fluid level and condition
- Inspect drive belt tension and condition
- Listen for pump cavitation noise
- Check all hoses for leaks or restrictions
- Bleed air from power steering system
Repair Notes
Repair leaks and fill fluid. Replace pump if worn. Bleed system of air.
Related Codes
Other Chassis Codes
- C0021LF Wheel Speed Sensor Range/Performance
- C0022RF Wheel Speed Sensor Range/Performance
- C0023LR Wheel Speed Sensor Range/Performance
- C0024RR Wheel Speed Sensor Range/Performance
- C0025LF Wheel Speed Sensor Circuit Intermittent
- C0026RF Wheel Speed Sensor Circuit Intermittent
- C0027LR Wheel Speed Sensor Circuit Intermittent
- C0028RR Wheel Speed Sensor Circuit Intermittent
- C0035Left Front Wheel Speed Sensor Circuit
- C0036Left Front Wheel Speed Signal Erratic
C0231 on Other Vehicles
Common Questions
What does code C0231 mean on a 2019-2024 BMW 3 Series G20?
C0231 stands for "Power Steering Fluid Pressure Low". The power steering fluid pressure is below the minimum required for adequate assist.
What are the symptoms of C0231 on a BMW 3 Series G20?
Common symptoms of C0231 include: Heavy steering especially at low speeds, Whining noise from power steering pump, Steering assist reduced, Fluid foaming visible in reservoir.
What causes C0231 on a 2019-2024 BMW 3 Series G20?
Common causes of C0231 include: Low power steering fluid, Power steering pump wear, Drive belt slipping, Power steering hose restriction, Air in power steering system.