why does my BMW X5 F15 (2014-2019) smell like burnt oil

Solution

1. Preparation

• Tools Required:
  • OBD-II scanner
  • Socket set
  • Torque wrench
  • Oil catch pan
  • Clean rags
  • Flashlight
• Ensure the engine is cool and the vehicle is parked on a level surface.

2. Identify and Repair Oil Leaks

• Step 1: Clean the engine bay thoroughly using a degreaser to remove old oil residue.
• Step 2: Start the engine and let it idle to look for fresh leaks.
• Step 3: If leaks are found, replace the faulty components such as:
  • Oil filter: Remove the old filter using the socket set and replace it with a new one. Ensure it's properly seated.
  • Valve cover gasket: Remove the valve cover by unbolting it (torque specifications: typically 10 Nm). Replace the gasket and reinstall the cover, ensuring even torque.
  • Oil seals: Identify any worn seals and replace them, ensuring to lubricate the new seals before installation.

3. Replace Oil

• Step 1: Drain the old oil by removing the oil drain plug and allow it to fully drain into the oil catch pan.
• Step 2: Replace the oil drain plug (torque specifications: usually 25 Nm).
• Step 3: Add fresh oil of the recommended grade (typically 0W-30 or 5W-30) into the engine using a funnel.