why does my BMW 5 Series F10/F11 (2010-2017) smell like burning oil

Solution

1. Preparation

• Gather necessary tools and parts.
• Ensure the vehicle is parked on a level surface and the engine is cool.
• Disconnect the battery to prevent electrical issues.

2. Identify and Repair Oil Leak

• Inspect Gaskets and Seals:
  • Remove engine covers if necessary.
  • Visually inspect the valve cover gasket and oil pan gasket for cracks or leaks.
  • Replace any damaged gaskets with new ones.
• Check Oil Filter:
  • Use an oil filter wrench to remove the oil filter.
  • Inspect the rubber O-ring for damage, and ensure the new filter is properly installed with a new O-ring.

3. Clean Up Residue

• Clean Affected Areas:
  • Use degreaser and a cloth to clean oil residue from the engine bay.
  • Ensure no oil is dripping onto hot engine components.

4. Replace Oil and Filter

• Change Engine Oil:
  • Drain the old oil using a drain pan, ensuring the oil is cool.
  • Replace the oil drain plug and tighten to the manufacturer’s torque specification (typically around 25 Nm).
  • Fill with new oil as per specifications (usually 5W-30 or 0W-40, depending on engine type).

5. Final Checks

• Reassemble and Test:
  • Reattach any components or covers removed during inspection.
  • Reconnect the battery and start the engine.
  • Monitor for any leaks and ensure the burning smell has dissipated.