why does my Volkswagen Passat B8 (2015-2022) have a burnt smell?

Solution

1. Preparation

• Gather tools: OBD-II scanner, flashlight, socket set, multimeter, and cleaning materials.
• Ensure the vehicle is parked on a level surface and the engine is cool.
• Disconnect the battery to prevent electrical shorts.

2. Inspect and Repair Electrical Components

• Sub-steps:
  1. Visually inspect all wiring harnesses in the engine bay for frays or burns.
  2. Use the multimeter to check continuity on suspect wires; repair or replace as necessary.
  3. Check connectors for corrosion or damage; clean or replace as needed.
  4. Inspect fuses; replace any blown fuses with the same amperage rating.

3. Changing Engine Oil

• Sub-steps:
  1. Drain the old engine oil using a socket set to remove the oil pan bolt.
  2. Replace the oil filter using an oil filter wrench.
  3. Fill the engine with new oil according to manufacturer specifications (5W-30 synthetic recommended).
  4. Start the engine and check for leaks around the filter and drain plug.

4. Inspect and Replace Transmission Fluid

• Sub-steps:
  1. Locate the transmission dipstick and check fluid level; add fluid if necessary.
  2. If the fluid is burnt, drain and replace it using a socket set to remove the transmission pan bolts.
  3. Replace the transmission filter if applicable.
  4. Refill with new transmission fluid according to manufacturer specifications.