C0315
Air Suspension Exhaust Solenoid Circuit
1999-2000 BMW 528iT E39 2.8L I6 🇷🇺
Moderate SeverityChassis
Description
Malfunction in the air suspension exhaust valve solenoid that releases air to lower the vehicle.
Symptoms
- Vehicle stuck at raised height
- Cannot lower suspension
- Suspension warning light
- Ride height will not adjust down
Common Causes
- Exhaust solenoid failure
- Solenoid wiring open or short
- Valve mechanically stuck
- Control module driver fault
Diagnostic Steps
- Test solenoid resistance
- Command solenoid with scan tool
- Check wiring for open or short circuits
- Inspect solenoid valve for debris
- Listen for solenoid click when commanded
Repair Notes
Replace exhaust solenoid valve or air suspension valve block.
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
C0315 on Other Vehicles
Common Questions
What does code C0315 mean on a 1999-2000 BMW 528iT E39?
C0315 stands for "Air Suspension Exhaust Solenoid Circuit". Malfunction in the air suspension exhaust valve solenoid that releases air to lower the vehicle.
What are the symptoms of C0315 on a BMW 528iT E39?
Common symptoms of C0315 include: Vehicle stuck at raised height, Cannot lower suspension, Suspension warning light, Ride height will not adjust down.
What causes C0315 on a 1999-2000 BMW 528iT E39?
Common causes of C0315 include: Exhaust solenoid failure, Solenoid wiring open or short, Valve mechanically stuck, Control module driver fault.