Does BMW crankshaft position sensor have to be OEM?
BMW N51 OEM Crankshaft Position Sensor
While there are cases where other BMW crankshaft position sensors will work, it is highly recommended that you use an OEM (Original Equipment Manufacturer) crankshaft position sensor for your BMW. OEM parts are designed to the exact specifications and performance standards set by BMW, ensuring optimal compatibility and reliability. Aftermarket parts like Duralast can be an affordable alternative, but they may not always provide the same level of performance or longevity.
What are the symptoms of a bad crankshaft sensor BMW?
There are many types of BMW crankshaft position sensor problems. The following are several noticeable symptoms crankshaft position sensor:
- Check Engine Light: The most common symptom is the illumination of the Check Engine Light on the dashboard.
- Rough Idle: The engine may idle erratically or inconsistently.
- Poor Acceleration: You may notice a lack of power or poor acceleration while driving.
- Stalling: The engine may unexpectedly stall at idle or while driving.
- Erratic Throttle Response: The throttle may become unresponsive or overly sensitive.
- Reduced Fuel Efficiency: You may experience reduced fuel efficiency due to an improper air-fuel mixture.
- Engine Vibration: Excessive engine vibration or misfires may occur.
- Hard Starting: The vehicle may be difficult to start, or it may take longer than usual to start.
There are more symptoms of a bad crankshaft position sensor failure than just these, and if you feel unsure at any time, it’s best to consult a professional mechanic.
Can I replace crankshaft sensor myself?
If you have some basic mechanical skills and the right tools, you can replace the crankshaft position sensor yourself.
How do you replace a crankshaft position sensor? Here is a brief overview of the process:
Tools Required:
- Socket Wrench
- Ratchet
- Screwdriver
- Replace Crankshaft Position Sensor
- OBD-II Scanner (optional)
Steps:
- Disconnect Battery: To ensure safety, disconnect the negative terminal of the battery.
- Locate Sensor: The crankshaft position sensor is usually located near the front of the engine, under the alternator or starter motor.
- Remove Sensor:
- Unplug the electrical connector from the sensor.
- Use a socket wrench to remove the mounting bolts that secure the sensor.
- Carefully move the sensor out of its position.
- Install New Sensor:
- Place the new sensor in place and secure it with the mounting bolts.
- Reconnect the electrical connector.
- Reconnect Battery: Reconnect the negative terminal of the battery.
- Clear Error Codes: Use an OBD-II scanner to clear all stored error codes and start the engine to ensure the issue is resolved.
Always refer to your vehicle’s service manual for specific instructions and torque specifications. If you feel unsure at any time, it is best to consult a professional mechanic.
crankshaft position sensor location: The crankshaft position sensor on a BMW N51 engine is typically located under the engine starter, near the rear of the engine block. To access it, you may need to remove the intake manifold and other components obstructing the sensor.
