P0521 MERCEDES-BENZ – Engine Oil Pressure Sensor/Switch Circuit Range/Performance

 

P0521: DIY Repairing Video Tutorial

https://youtu.be/W9EL9QHCDMo

Check out nonda Auto DIY Center for more engine error code repairing videos.
https://www.youtube.com/playlist?list=PL-Lyko0O0oxHe1AGvzwAz-wokJPXAtW97

 

P0521 MERCEDES-BENZ Possible Symptoms

  Engine Light ON (or Service Engine Soon Warning Light),Oil pressure warning light ON.  

P0521 MERCEDES-BENZ Possible Causes

  Low oil level or motor mechanical fault,Faulty oil pressure sensor,Oil Pressure Sensor harness is open or shorted,Oil Pressure Sensor circuit poor electrical connection  

P0521 MERCEDES-BENZ Description

  The PCM continuously monitors the engine oil pressure. The Oil Pressure Sensor/Switch sends a signal to the PCM when the engine is running.