my BMW X5 G05 (2019-2024) has a rough idle and smells like gas

Solution

1. Preparation

• Gather all necessary tools and parts before starting.
• Disconnect the battery to ensure safety.
• Allow the engine to cool down before working on the fuel system.

2. Inspect and Repair Fuel System

• Fuel Leak Inspection
  • Visually inspect fuel lines, injectors, and the fuel rail for any signs of leakage.
  • Use a flashlight for better visibility.
• Replace Damaged Components
  • If any leaks are found, replace the damaged fuel hose or injector.
  • Secure connections and ensure proper routing of hoses.

3. Check and Replace Spark Plugs

• Remove Spark Plugs
  • Use a socket wrench to remove the spark plugs carefully.
  • Inspect each plug for signs of fouling or abnormal wear.
• Install New Spark Plugs
  • Use manufacturer-recommended spark plugs.
  • Torque to the specified value (consult manufacturer specifications, typically around 15-20 Nm).

4. Clean or Replace Air Filter

• Remove Air Filter
  • Open the air filter housing and carefully remove the old air filter.
• Install New Air Filter
  • Place a new air filter into the housing, ensuring it fits snugly.
  • Close the air filter housing securely.

5. Final Checks

• Inspect and secure any vacuum hoses connected to the intake manifold.
• Reconnect the battery after all repairs.