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How do you change the oil pressure sensor in a 2004 BMW 325i?

Tools and Materials:

- New oil pressure sensor

- Oil filter wrench

- Oil drain pan

- Funnel

- New oil (check owner's manual for recommended type and amount)

- Wrench

- Socket set

- Rags

- Safety glasses

Instructions:

1. Prepare the vehicle.

- Park the car on a level surface.

- Turn off the engine and allow it to cool down.

- Set the parking brake.

2. Remove the oil drain plug.

- Place the oil drain pan under the oil pan.

- Use the oil filter wrench to loosen the oil drain plug.

- Allow the oil to drain completely into the pan.

- Replace the oil drain plug once all the oil has drained out.

3. Locate the oil pressure sensor.

- The oil pressure sensor is located on the back of the engine, near the top of the oil filter housing.

- It is usually a black or brown cylindrical object with a single electrical connector.

4. Disconnect the electrical connector.

- Press down on the release tab on the electrical connector and pull it straight off of the oil pressure sensor.

5. Unscrew the oil pressure sensor.

- Use the wrench or socket set to loosen the oil pressure sensor.

- Be careful not to drop the sensor into the engine.

6. Install the new oil pressure sensor.

- Screw the new oil pressure sensor into the oil filter housing by hand.

- Do not overtighten the sensor.

- Once the sensor is snug, use the wrench or socket set to tighten it another 1/4 to 1/2 turn.

7. Reconnect the electrical connector.

- Press the electrical connector onto the oil pressure sensor until it clicks into place.

8. Add new oil to the engine.

- Use the funnel to add new oil to the engine through the oil fill cap.

- Add the amount of oil specified in the owner's manual.

9. Start the engine and check for leaks.

- Start the engine and allow it to run for a few minutes.

- Check the oil pressure sensor and the oil drain plug for leaks.

- If there are no leaks, turn off the engine and lower the vehicle.