why does my Volkswagen Golf MK7 (2015-2019) make a clicking noise when starting

Volkswagen Golf MK8.5 (2024-Present)

Error Codes

1-2 hours

Time

medium

Difficulty

high

Severity

3 min read

523 words

⚠️ Safety Warning

This issue requires immediate attention. If you are not experienced with automotive repairs, consult a professional mechanic. Working on critical systems can be dangerous.

Problem Statement

Learn how to diagnose and fix the clicking noise when starting your Volkswagen Golf MK7 (2015-2019). Step-by-step guide with diagnostic procedures and repair instructions.

Affected Component

Electrical

Estimated Time

1-2 hours

⚠️ Safety Warnings

Important safety information - read before proceeding

•Disconnect the negative battery terminal before working on electrical components.
•Ensure the vehicle is in park (automatic) or neutral (manual) and the parking brake is engaged.

Symptoms

•Clicking sound when turning the ignition key
•Engine does not crank or turn over
•Dashboard lights may dim during the start attempt
•Possible intermittent starting issues
•Battery warning light may illuminate

Diagnostic Steps

1
Check the Battery Voltage: Use a multimeter to measure the battery voltage; it should read around 12.6 volts or higher.
2
Inspect Battery Connections: Visually check and ensure the battery terminals are clean, tight, and free of corrosion.
3
Test the Starter Motor: Use a multimeter to check for voltage at the starter motor when the ignition is turned to the start position.
4
Examine Fuses: Check the fuse related to the starting system for any blown fuses.
5
Check the Ignition Switch: Test the ignition switch for proper operation and continuity when in the start position.
6
Inspect the Starter Relay: Test the starter relay for functionality and replace if necessary.

Solution

💡 Expert Tip

For complex repairs like this, consider taking photos at each step. This helps if you need to reverse a step or consult with a mechanic. Also, keep all removed parts organized - you may need to reference them during reassembly.

Verification

After completing the repair, verify that the issue has been resolved:

✓Test the affected component to ensure it functions correctly
✓Check for any error codes or warning lights
✓Monitor the vehicle for a few days to ensure the issue does not recur

Prevention Tips

To prevent this issue from occurring again:

•Follow the manufacturer's recommended maintenance schedule
•Address warning signs early before they develop into major issues
•Use quality parts and fluids recommended for your vehicle
•Keep detailed records of all repairs and maintenance

Tools & Equipment Required

•Multimeter
•Wrench set
•Socket set
•Screwdriver set

Parts Required

•New battery (if needed)
•New starter motor (if necessary)

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Diagnostic Steps

1
Check the Battery Voltage: Use a multimeter to measure the battery voltage; it should read around 12.6 volts or higher.
2
Inspect Battery Connections: Visually check and ensure the battery terminals are clean, tight, and free of corrosion.
3
Test the Starter Motor: Use a multimeter to check for voltage at the starter motor when the ignition is turned to the start position.
4
Examine Fuses: Check the fuse related to the starting system for any blown fuses.
5
Check the Ignition Switch: Test the ignition switch for proper operation and continuity when in the start position.
6
Inspect the Starter Relay: Test the starter relay for functionality and replace if necessary.

Solution

1. Preparation

Tools Required:
- Multimeter
- Wrench set
- Socket set
- Screwdriver set
Safety Warnings:
- Disconnect the negative battery terminal before working on electrical components.
- Ensure the vehicle is in park (automatic) or neutral (manual) and the parking brake is engaged.

2. Battery Replacement

Disconnect the negative terminal of the battery using a wrench.
Remove the positive terminal from the battery.
Unbolt the battery hold-down bracket and lift the battery out.
Install the new battery by placing it in the battery tray.
Reattach the hold-down bracket and secure it.
Connect the positive terminal first, followed by the negative terminal.

3. Starter Motor Replacement (if necessary)

Disconnect the negative battery terminal.
Locate the starter motor beneath the vehicle.
Remove any undercovers or shields obstructing access to the starter.
Disconnect the wiring harness from the starter motor.
Remove the bolts securing the starter motor to the engine.
Carefully remove the starter motor from its position.
Install the new starter motor by reversing the removal steps.
Reconnect the wiring harness and ensure all connections are secure.
Reattach any undercovers or shields.