Warning Indicators of Engine Oil Pressure Sensor Problem in BMW

The engine oil pressure sensor is a small but crucial component of the BMW lubrication system that checks oil pressure and transmits data to the car's electrical system. If the pressure decreases or the sensor fails then your BMW may indicate the presence of an oil pressure warning signal on its dashboard.

Failing to take notice of this warning signal can result in potential damage to the engine. This is because low oil pressure means the engine parts do not get sufficient lubrication whereas a malfunctioning oil pressure sensor will lead to incorrect readings.

Function of the Engine Oil Pressure Sensor

The engine oil pressure sensor is responsible for measuring the pressure at which the oil flows inside the engine. The engine requires a constant supply of oil in order to minimize friction as well as regulate the heat generated.

Upon detecting unusual oil pressure, the sensor transmits the information to the control system of the vehicle. Based on the model of the BMW, there could be a message appearing on the dashboard of the vehicle.

However, the problem of low oil pressure does not always indicate a faulty oil pressure sensor. Other issues such as low oil level, an oil leak, clogged oil passages, a defective oil pump and others could lead to this problem.

Warning Indicators of an Engine Oil Pressure Sensor Problem in BMW

Check Engine Light Appears

Sometimes, the malfunction of an engine oil pressure sensor will activate the check engine light. The control system of the car will receive abnormal signals sent by the faulty sensor circuit and save the trouble code.

The check engine light cannot show you the exact part that fails. You have to do a diagnostic scan to know which system or circuit records a trouble code.

Oil Leaks Near the Sensor

The sensor is located inside the engine and works under the influence of oil pressure. After some time, the sensor seal or housing starts leaking. You can see:

• Oil near the sensor

• Moisture on other engine parts

• Spots of oil beneath the car

• Burning oil smell due to the hot engine parts.

Abnormal Engine Sounds

Abnormal sounds made by the engine are one of the most alarming symptoms. If the engine oil pressure is low then the engine will not be lubricated enough. You can hear some ticking or knocking sounds coming from the engine. If you see the oil pressure warning along with the sound then driving will be dangerous for your engine.

Causes of Oil Pressure Sensor Problem

Defective Sensor

With time, the sensor will start failing and sending false signals. Electrical failures within the sensor will also cause it not to communicate properly with the engine control system.

Damaged Wiring or Connector

The wiring and connector connected to the sensor can get damaged, loose or contaminated with engine oil. This causes communication issues.

Low Engine Oil Level

Having low engine oil levels causes low oil pressure. The first thing that you should check is whether you have a low engine oil level.

Oil Pump Issues

The oil pump serves as the mechanism that pumps the oil around the engine. If the pump fails to ensure sufficient pressure in the system then the car will show the oil pressure light despite a working sensor.

Blockage of Oil Circulation Pathway

Sludge, contaminants and various forms of dirt may block the pathway for the oil. This can prevent effective lubrication of the components as well as create oil pressure issues.

Prevention of Oil Pressure Issues in Your BMW

Maintenance helps to decrease the chances of encountering oil-related problems. Adhere to the oil servicing schedule for your BMW and use the engine oil according to the recommendations. Additional tips are as follows:

• Monitor the oil level.

• Look for oil leaks.

• Watch out for oil pressure lights.

• Check the engine for any noise

• Do not ignore the flashing dashboard warnings.

• Use good quality replacement parts in case of repairs.

Conclusion

If your BMW shows the oil pressure alarm then don’t just ignore it because your problem might be caused by something else. Professional testing can pinpoint your actual issue and prevent unwanted service.

If you have a problem with your engine oil pressure sensor in your BMW then we will be glad to perform a thorough checkup on your car and figure out what exactly causes this issue. Come to us and get professional diagnostics and servicing for your BMW.

We at World Class Auto Repair located in Boca Raton, FL have years of experience in looking after European, Domestic and Asian cars. We are your dealership alternative and committed to providing you the best experience possible.