What causes the fuel gauge to malfunction in a Mazda CX-5 KF?

A malfunctioning fuel gauge in a Mazda CX-5 KF (2017-2024) can be caused by several factors. Here’s a detailed guide to diagnosing and potentially resolving the issue.

Parts/Components That May Need Replacement:

• Fuel Level Sensor: If the sensor is faulty, it will need to be replaced.
• Instrument Cluster: If the cluster is defective, it may need to be replaced.
• Wiring Harness: If damaged, the wiring may need repair or replacement.

Estimated Time for Repair:

• Fuel Level Sensor Replacement: Approximately 1-2 hours.
• Instrument Cluster Replacement: Approximately 1-2 hours.
• Wiring Repair: Varies based on the extent of damage; typically 1-3 hours.

Safety Warnings:

• Always disconnect the battery before working on electrical components to prevent shorts or shocks.
• If working with the fuel system, ensure the vehicle is in a well-ventilated area to avoid inhaling fumes.
• Handle fuel components with care to prevent spills and fire hazards.

By following these steps, you can accurately diagnose and address the issues causing the fuel gauge malfunction in a Mazda CX-5 KF.