my Volkswagen Tiguan First Generation (2007-2018) has a weird smell while driving, what's wrong?

Solution

1. Preparation

• Tools Required: OBD-II scanner, socket set, flashlight, gloves
• Safety Warnings: Ensure the engine is cool before inspecting the engine compartment.

2. Replace Cabin Air Filter

• Locate the cabin air filter housing, typically under the dashboard or behind the glove compartment.
• Remove the cover and take out the old cabin air filter.
• Clean any debris from the housing using a vacuum or damp cloth.
• Install a new cabin air filter, ensuring it is oriented correctly, then replace the cover.

3. Inspect and Repair Engine Components

• Check for any signs of burning on belts and hoses in the engine compartment.
• Replace any damaged belts or hoses.
• If leaks are found, replace the leaking component (e.g., valve cover gasket, coolant hose).

4. Repair Exhaust System

• Visually inspect the exhaust system for cracks, rust, or loose connections.
• If a leak is detected, use an exhaust patch or replace the affected section of the exhaust pipe.
• Ensure all clamps and hangers are secure.