my Volkswagen Golf MK7 (2015-2019) is making a clicking noise when starting

Volkswagen Golf MK8.5 (2024-Present)

Error Codes

1-3 hours

Time

medium

Difficulty

high

Severity

3 min read

510 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 a clicking noise when starting your Volkswagen Golf MK7 (2015-2019). Step-by-step guide with symptoms, diagnostics, and solutions.

Affected Component

Electrical

Estimated Time

1-3 hours

⚠️ Safety Warnings

Important safety information - read before proceeding

•Disconnect the battery before working on electrical systems.
•Allow components to cool if the vehicle was recently in operation.

Symptoms

•Clicking noise when turning the ignition key
•Engine fails to crank or start
•Dashboard lights flickering or dimming
•Battery warning light illuminated
•Possible intermittent electrical issues (e.g., lights or radio not functioning properly)

Diagnostic Steps

1
Inspect battery terminals for corrosion and tightness.
2
Check the battery voltage using a multimeter (should be at least 12.6 volts).
3
Test the starter relay by swapping it with another identical relay in the fuse box.
4
Measure voltage at the starter motor while someone attempts to start the engine.
5
Inspect the starter motor and its connections for any visible damage or loose wires.

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
•Socket set
•Torque wrench
•Battery terminal cleaner
•Screwdriver set

Parts Required

•New battery (if voltage is low)
•New starter motor (if found faulty during diagnosis)

Related Faults

Share this solution

Comments

No comments yet

Be the first to share your thoughts

Back to Generation

Diagnostic Steps

1
Inspect battery terminals for corrosion and tightness.
2
Check the battery voltage using a multimeter (should be at least 12.6 volts).
3
Test the starter relay by swapping it with another identical relay in the fuse box.
4
Measure voltage at the starter motor while someone attempts to start the engine.
5
Inspect the starter motor and its connections for any visible damage or loose wires.

Solution

1. Preparation

Gather necessary tools and parts.
Ensure the vehicle is parked on a level surface and the ignition is turned off.
Disconnect the negative terminal of the battery to prevent electrical shock.

Tools Required:

Multimeter
Socket set
Torque wrench
Battery terminal cleaner
Screwdriver set

2. Battery Maintenance

Clean Terminals:
- Use a battery terminal cleaner to remove any corrosion from the battery terminals.
- Ensure the terminals are dry before reconnecting.
Reconnect Battery:
- Reconnect the positive terminal first, followed by the negative terminal.

3. Battery Replacement (if voltage is low)

Remove Old Battery:
- Use a socket set to remove the battery hold-down bracket.
- Carefully lift the battery out of the tray.
Install New Battery:
- Place the new battery in the tray and secure with the hold-down bracket.
- Connect the positive terminal first, then the negative terminal.

4. Starter Motor Replacement (if necessary)

Remove Starter Motor:
- Disconnect the battery again to ensure safety.
- Remove any components obstructing access to the starter motor (e.g., air intake duct).
- Use a socket set to remove the starter motor bolts and disconnect electrical connectors.
Install New Starter Motor:
- Position the new starter motor in place.
- Reconnect electrical connectors and secure with bolts, tightening to manufacturer's specifications.

5. Final Checks

Reconnect the battery terminals once all repairs are completed.
Inspect all connections to ensure they are secure and free of corrosion.