why is my Volkswagen Golf MK7.5 (2020-Present) using too much fuel

Solution

1. Preparation

• Gather necessary tools and parts.
• Ensure the vehicle is parked on a level surface and the engine is cool.
• Disconnect the negative battery terminal to avoid electrical issues.

2. Inspect and Clean Air Intake System

• Remove the air filter housing and inspect the air filter for dirt or blockages.
• If necessary, replace the air filter with a new OEM component.
• Clean the Mass Air Flow (MAF) sensor using MAF cleaner spray.

3. Check Fuel System

• Test the fuel pressure using a fuel pressure gauge; compare readings with manufacturer specifications.
• If pressure is low, inspect and possibly replace the fuel pump.
• Check fuel injectors for clogs; clean or replace if necessary.

4. Inspect Ignition System

• Remove spark plugs and check for wear or carbon buildup; replace if necessary.
• Test ignition coils for proper operation using a multimeter.
• Replace any faulty ignition components.

5. Examine Exhaust System

• Visually inspect the exhaust for any signs of leaks or damage.
• Use a smoke machine to check for leaks in the exhaust system.
• Repair or replace components as needed.