how to diagnose strange burning smell from my Volkswagen Golf MK7 (2015-2019)?

Solution

1. Preparation

• Gather tools and parts needed for the repair.
• Ensure the vehicle is parked on a flat surface with the engine off and cool.
• Disconnect the battery to prevent electrical issues.

2. Address Fluid Leaks

• Locate the source of the leak:
  • Clean the area around the leak.
  • Use a dye or UV light to identify the type of fluid leaking.
• Replace faulty components:
  • If oil is leaking, replace the oil filter or gasket if damaged.
  • If coolant is leaking, replace hoses or the radiator if needed.

3. Repair Overheating Issues

• Inspect the cooling system:
  • Check coolant level; refill with the appropriate type if low.
  • Inspect the water pump and thermostat for functionality.
• Replace faulty components:
  • If the radiator is blocked, flush and clean it or replace it.
  • Replace the thermostat if it’s stuck in the closed position.

4. Electrical Inspection

• Inspect wiring and connections:
  • Look for burnt or damaged wiring harnesses.
  • Repair or replace any damaged wiring.
• Check fuses:
  • Replace any blown fuses that could indicate overheating or short circuits.

5. Brake System Check

• Inspect brakes:
  • Remove the wheel to access brake components.
  • Check the condition of the brake pads and rotors; replace as necessary.
• Brake fluid:
  • Check brake fluid level and replace if contaminated or low.