Volkswagen Golf MK7 (2015-2019) why do my door locks keep malfunctioning

Solution

1. Preparation

• Gather all necessary tools and parts.
• Disconnect the vehicle battery to prevent electrical shorts.
• Ensure you have a clean workspace.

2. Key Fob Battery Replacement

• Remove the key fob cover using a small flathead screwdriver.
• Replace the old battery with a new CR2032 battery, ensuring correct polarity.
• Reassemble the key fob and test its function.

3. Inspect and Replace Door Lock Actuators

• Tools Required: Socket set, screwdriver set, trim removal tool.
• Remove the door panel using a trim removal tool to prevent damage.
• Disconnect the wiring harness from the door lock actuator.
• Remove the actuator from the door by unscrewing the mounting screws.
• Install the new actuator by reversing the removal process.
• Reconnect the wiring harness and reattach the door panel.

4. Check and Replace the Central Locking Fuse

• Locate the fuse box, typically found under the dashboard or in the engine compartment.
• Identify the fuse for the central locking system using the fuse diagram.
• Remove the fuse and inspect it; replace with a new fuse of the same amperage if blown.

5. Wiring Inspection and Repair

• Visually inspect the wiring harness for any signs of wear or damage.
• Use a multimeter to check for continuity in the wires leading to the door lock actuators.
• Repair or replace damaged wiring as necessary, ensuring proper insulation and connections.