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

Volkswagen Golf MK8.5 (2024-Present)

Error Codes

1-3 hours

Time

medium

Difficulty

high

Severity

3 min read

515 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

1-3 hours

⚠️ Safety Warnings

Important safety information - read before proceeding

•Always disconnect the battery before working on electrical components.
•Allow the vehicle to cool before working on engine components.

Symptoms

•Clicking noise when turning the ignition key
•Engine does not crank or starts slowly
•Dashboard lights dim when attempting to start
•No sound from the starter motor
•Battery warning light illuminated

Diagnostic Steps

1
Check the battery voltage using a multimeter; it should read at least 12.6 volts for a fully charged battery.
2
Inspect the battery terminals for corrosion or loose connections.
3
Test the starter motor by bypassing it with a direct connection from the battery.
4
Check the fuses related to the starting system for any blown fuses.
5
Inspect the ignition switch for proper function and continuity.
6
Examine the wiring and connections to the starter motor for damage or poor contact.

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
•Wire brush
•Socket set
•Torque wrench
•Screwdriver set

Parts Required

•Replacement battery (if needed)
•Replacement starter motor (if needed)
•Electrical connectors (if damaged)

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Diagnostic Steps

1
Check the battery voltage using a multimeter; it should read at least 12.6 volts for a fully charged battery.
2
Inspect the battery terminals for corrosion or loose connections.
3
Test the starter motor by bypassing it with a direct connection from the battery.
4
Check the fuses related to the starting system for any blown fuses.
5
Inspect the ignition switch for proper function and continuity.
6
Examine the wiring and connections to the starter motor for damage or poor contact.

Solution

1. Preparation

Gather necessary tools and parts.
Ensure the vehicle is in park (or neutral) and the parking brake is engaged.
Disconnect the negative terminal of the battery to prevent any electrical shorts.

2. Battery Inspection and Replacement

Inspect Battery:
- Clean any corrosion from the battery terminals using a wire brush.
- Ensure terminals are tight and secure.
Replace Battery (if necessary):
- Remove the positive terminal first, followed by the negative terminal.
- Remove any hold-down brackets securing the battery.
- Lift the battery out and install the new battery in reverse order.
- Reconnect the negative terminal first, then the positive terminal.

3. Starter Motor Replacement (if needed)

Remove Starter Motor:
- Disconnect the battery again (negative terminal).
- Locate the starter motor (typically near the transmission).
- Remove any protective covers if necessary.
- Unplug the electrical connectors from the starter.
- Remove the mounting bolts securing the starter to the engine.
- Carefully remove the starter from its position.
Install New Starter:
- Position the new starter in place and secure it with bolts, tightening to manufacturer specifications (typically around 15-20 ft-lbs).
- Reconnect the electrical connectors.
- Reinstall any protective covers.

4. Final Checks

Reconnect the battery terminals (negative first).
Ensure all connections are tight and secure.
Start the vehicle to ensure the repair was successful.