Mercedes-Benz - OBD Code Lookup

P0521 Mercedes-Benz

Engine Oil Pressure Sensor/Switch Circuit Range/Performance

Engine Oil Pressure Sensor/Switch Circuit Low Voltage

Closed Throttle Position Switch Malfunction

Engine Oil Pressure Sensor/Switch Circuit Malfunction

Idle Control System RPM Lower Than Expected

Idle Control System RPM Higher Than Expected

Idle Control System Malfunction

Vehicle Speed Sensor ‘A’ Intermittent/Erratic/High

Vehicle Speed Sensor ‘A’ Low Input

Vehicle Speed Sensor ‘A’ Range/Performance