why is my Volkswagen Golf MK7 (2015-2019) fuel gauge not working

Solution

1. Preparation

• Gather necessary tools and parts.
• Disconnect the battery to ensure safety while working on electrical components.

2. Check and Replace Fuse

• Locate the fuse box and identify the fuse for the fuel gauge (refer to the owner's manual for the exact location).
• Remove the fuse and inspect it for continuity; replace if blown.
• Reconnect the battery and test the fuel gauge functionality.

3. Inspect Wiring and Connectors

• Inspect the wiring harness connected to the fuel tank and gauge.
• Look for any signs of wear, corrosion, or loose connections.
• Repair any damaged wiring or secure loose connections firmly.

4. Test and Replace Fuel Level Sending Unit

• If the gauge still does not function correctly, remove the fuel tank access cover (if applicable) or lower the fuel tank to access the sending unit.
• Disconnect the wiring harness from the sending unit.
• Using a multimeter, measure the resistance while moving the float arm to ensure proper operation.
• If defective, replace the fuel level sending unit with a new part.
• Reassemble the fuel tank and reconnect everything securely.

5. Final Assembly and Testing

• Reconnect the battery and ensure all components are secure.
• Start the vehicle and check the fuel gauge for proper operation.
• Take the vehicle for a short test drive to confirm gauge accuracy at various fuel levels.