why does my BMW 3 Series G20/G21 (2019-2024) have a burning smell when driving?

Solution

1. Preparation

• Gather required tools and parts.
• Ensure the vehicle is parked on a level surface and the engine is cool.
• Disconnect the negative battery terminal for safety.

2. Inspect and Clean Engine Components

• Tools Required: Socket set, oil catch pan, rags, flashlight.
• Remove engine covers if necessary to access components.
• Check for oil leaks around the oil filter and oil pan; clean any spilled oil.
• If oil is found leaking, replace the oil filter and/or oil pan gasket as needed.

3. Check Brake System

• Tools Required: Jack and jack stands, torque wrench, brake cleaner.
• Raise the vehicle and remove the wheels to access the brakes.
• Inspect brake pads and rotors for wear; replace if they show signs of excessive wear or burning.
• Clean brake components using brake cleaner and reassemble.

4. Inspect Exhaust System

• Tools Required: Wrench set, safety goggles.
• Inspect the exhaust system for damage or leaks, particularly around the catalytic converter.
• Replace any damaged exhaust components as required.

5. Electrical System Inspection

• Tools Required: Multimeter, wire connectors.
• Inspect wiring for signs of damage or overheating; repair any damaged wires.
• Ensure all electrical connections are secure and free from corrosion.