The BMW F10’s oil level sensor is a critical component for maintaining engine health. A faulty sensor can lead to inaccurate readings, potentially causing engine damage. This guide provides a detailed walkthrough for replacing the oil level sensor in your BMW F10.
This replacement was performed on a vehicle with only 600 miles on the current oil change. The reason for the replacement was due to consistently inaccurate oil level readings, even after adding oil. The sensor was suspected to be faulty, prompting a proactive replacement to prevent potential engine issues.
Required Materials:
- Bmw F10 Oil Level Sensor: Part number BMW-12617607910 (recommended to purchase from a reputable supplier with a warranty, such as fcpeuro).
- New Oil: Approximately 9.5 quarts.
- New Oil Filter: A new oil filter is necessary as the oil filter housing needs to be removed during the process.
Step-by-Step Replacement Procedure:
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Drain the Oil: Warm up the engine slightly to allow the oil to flow more easily. Position a drain pan beneath the oil pan and remove the drain plug. Loosely replace the drain plug once the oil has drained.
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Remove Oil Filter Housing: Unscrew and remove the oil filter housing to allow any remaining oil within the system to drain. Loosely reinstall the oil filter housing.
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Access the Oil Level Sensor: Remove the bolts securing the metal undertray protecting the oil pan. Remove all but one bolt, allowing you to maneuver the plate and access the oil level sensor through the corresponding hole in the undertray. You will also need to remove a few bolts from the plastic splash shield to access two hidden bolts on the metal undertray.
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Remove the Sensor: Use a 10mm socket to remove the three nuts holding the oil level sensor in place. Be prepared for a small amount of oil to leak out.
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Disconnect the Electrical Connector: With the sensor removed, carefully press the tabs on the electrical connector and pull to disconnect it from the sensor.
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Install the New Sensor: Connect the electrical connector to the new oil level sensor. Secure the sensor to the engine using the three 10mm nuts.
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Reassemble Undertray and Splash Shield: Reinstall all the bolts for the metal undertray and the plastic splash shield.
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Install New Oil Filter: Replace the old oil filter with the new one. Securely tighten the oil filter housing.
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Replace Drain Plug: Remove the drain plug again to drain any additional oil that may have accumulated. Install a new crush washer and tighten the drain plug to the specified torque.
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Refill Oil: Lower the vehicle and add approximately 9 quarts of new oil.
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Check Oil Level: Warm up the engine and check the oil level using the dipstick. Add additional oil as needed until the level reaches the maximum mark (approximately 0.5 quarts may be required).
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Final Check: After running the engine and allowing it to cool, re-check the oil level to ensure it remains at the maximum mark.
By following these steps, you can successfully replace the oil level sensor in your BMW F10, ensuring accurate oil level readings and contributing to the longevity of your engine. Always refer to your vehicle’s service manual for specific torque specifications and safety procedures.
