how to troubleshoot a Volkswagen Golf MK7 (2015-2019) with no start but clicking sound

Volkswagen Golf MK8.5 (2024-Present)

Error Codes

1-2 hours

Time

medium

Difficulty

high

Severity

3 min read

542 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 troubleshoot a no-start condition with clicking sound in Volkswagen Golf MK7 (2015-2019). Step-by-step diagnostic and repair guide.

Affected Component

Electrical

Estimated Time

1-2 hours

⚠️ Safety Warnings

Important safety information - read before proceeding

•Disconnect the battery before working on electrical systems to avoid shocks.

Symptoms

•Clicking sound from the starter when attempting to start the engine
•Dashboard lights illuminate but flicker
•No engine cranking or turnover
•Battery warning light may be illuminated
•Possible dimming of interior lights when key is turned to the start position

Diagnostic Steps

1
Check the battery voltage using a multimeter. Ensure it is above 12.4 volts.
2
Inspect battery terminals for corrosion or loose connections.
3
Test the starter relay by swapping it with a similar relay in the fuse box.
4
Check the fuse related to the starter system for any signs of damage.
5
Measure voltage at the starter solenoid with the ignition in the start position.
6
Inspect the ground connections from the battery to the chassis and engine block.

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

Parts Required

•Starter relay (if needed)
•Fuses (if blown)
•Battery (if necessary)

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Diagnostic Steps

1
Check the battery voltage using a multimeter. Ensure it is above 12.4 volts.
2
Inspect battery terminals for corrosion or loose connections.
3
Test the starter relay by swapping it with a similar relay in the fuse box.
4
Check the fuse related to the starter system for any signs of damage.
5
Measure voltage at the starter solenoid with the ignition in the start position.
6
Inspect the ground connections from the battery to the chassis and engine block.

Solution

1. Preparation

Gather tools: multimeter, socket set, torque wrench, and any necessary replacement parts.
Ensure the vehicle is parked on a flat surface with the ignition off and the parking brake engaged.

2. Battery Inspection

Sub-steps:
1. Disconnect the negative terminal of the battery to prevent any electrical shorts.
2. Clean any corrosion from the battery terminals using a wire brush.
3. Reconnect the terminals securely and check the voltage again.

3. Starter Relay and Fuse Check

Sub-steps:
1. Locate the starter relay in the fuse box (consult the owner's manual for exact location).
2. Remove the starter relay and inspect for any visible damage; replace if necessary.
3. Check the fuse for the starter circuit and replace it if it is blown.

4. Starter and Connections

Sub-steps:
1. Locate the starter motor beneath the vehicle.
2. Ensure all connections to the starter are tight and free of corrosion.
3. Measure voltage at the starter solenoid terminal with the ignition in the start position; if no voltage is present, the issue may lie in the ignition switch or wiring.

5. Ground Connection Inspection

Sub-steps:
1. Check the ground strap from the battery to the chassis for continuity and secure connections.
2. Inspect the ground connection from the engine block to the chassis and ensure it is tight and free of corrosion.

6. Reassembly and Final Checks

Sub-steps:
1. Reconnect the negative terminal of the battery.
2. Attempt to start the vehicle again.
3. If the vehicle starts, monitor for any unusual sounds or warning lights.