Faulty oil pressure sensor/switch. Low engine oil level. Worn oil pump. Blocked oil pickup strainer. Wiring fault to sensor.

P0520

Q: Which cars are affected by P0520?

P0520 is most commonly reported on Vauxhall, Chevrolet, Ford, Volkswagen, Mercedes-Benz vehicles, but can appear on any make.

High severity

Engine Oil Pressure Sensor/Switch Circuit

The oil pressure sensor or its circuit is sending readings outside the expected range. This can be a sensor fault or a genuine low oil pressure warning that requires immediate attention.

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Common causes of P0520

1Faulty oil pressure sensor/switch

2Low engine oil level

3Worn oil pump

+2 more causes

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Commonly affected vehicles

VauxhallChevroletFordVolkswagenMercedes-Benz

P0520 can appear on any vehicle — these are the makes where it is most frequently reported.

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Most likely cause for your vehicle

Based on your vehicle's make, model, year, and MOT history, the most probable cause is identified and ranked by likelihood.

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Recalls & technical bulletins

Manufacturer recalls and TSBs checked automatically for your specific vehicle, so nothing gets missed.

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Related fault codes

P0171Medium

System Too Lean (Bank 1)

P0300High

Random/Multiple Cylinder Misfire Detected

P0420Medium

Catalyst System Efficiency Below Threshold (Bank 1)

P0172Medium

System Too Rich (Bank 1)