why is my BMW 5 Series F10/F11 (2010-2017) burning oil excessively?

Solution

1. Preparation

• Gather necessary tools and parts.
• Ensure the engine is cool and disconnect the battery to prevent electrical shorts.

2. Inspect and Replace PCV System

• Tools Required: Socket set, pliers, replacement PCV valve.
• Remove the engine cover by unscrewing the bolts.
• Locate the PCV valve and remove the hose connected to it using pliers.
• Disconnect the PCV valve from its housing and replace it with a new one.
• Reconnect the hoses securely and replace the engine cover.

3. Replace Valve Cover Gasket

• Tools Required: Torque wrench, screwdriver, new valve cover gasket.
• Remove any components obstructing access to the valve cover (such as ignition coils).
• Unscrew the valve cover bolts and carefully lift the valve cover off.
• Clean the mating surface on the cylinder head and install the new valve cover gasket.
• Reinstall the valve cover and torque the bolts to the manufacturer’s specifications.

4. Inspect and Replace Piston Rings (if necessary)

• Tools Required: Engine hoist, socket set, new piston rings, gasket kit.
• Remove the engine from the vehicle following manufacturer guidelines.
• Disassemble the engine to access the pistons.
• Remove the old piston rings and replace them with new ones.
• Reassemble the engine and reinstall it in the vehicle.