my Volkswagen Golf MK7 (2015-2019) won't start and just clicks what could be wrong

Volkswagen Golf MK8.5 (2024-Present)

Error Codes

1-2 hours

Time

medium

Difficulty

high

Severity

3 min read

484 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 no-start condition in Volkswagen Golf MK7 (2015-2019). Step-by-step guide with symptoms, diagnostic steps, and repair instructions.

Affected Component

Electrical

Estimated Time

1-2 hours

⚠️ Safety Warnings

Important safety information - read before proceeding

•Disconnect the battery before working on electrical systems.
•Use caution when working under the vehicle; utilize jack stands for safety.

Symptoms

•Engine does not crank
•Clicking noise from the engine bay
•Dashboard lights dimming when the key is turned
•No response from the starter motor
•Possible battery warning light illuminated

Diagnostic Steps

1
Check the battery voltage using a multimeter; it should read at least 12.4 volts.
2
Inspect battery terminals for corrosion or loose connections.
3
Test the starter motor by bypassing the ignition system with a jumper cable.
4
Check fuses related to the starting system for any blown fuses.
5
Inspect the ignition switch for functionality.
6
Verify if the clutch or brake pedal is fully depressed (for manual and automatic vehicles, respectively).

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
•Jumper cables
•Socket set
•Wire brush

Parts Required

•Battery (if faulty)
•Starter motor (if faulty)
•Fuses (if blown)

Related Faults

Share this solution

Comments

No comments yet

Be the first to share your thoughts

Back to Generation

Diagnostic Steps

1
Check the battery voltage using a multimeter; it should read at least 12.4 volts.
2
Inspect battery terminals for corrosion or loose connections.
3
Test the starter motor by bypassing the ignition system with a jumper cable.
4
Check fuses related to the starting system for any blown fuses.
5
Inspect the ignition switch for functionality.
6
Verify if the clutch or brake pedal is fully depressed (for manual and automatic vehicles, respectively).

Solution

1. Preparation

Gather tools: multimeter, wrench set, jumper cables, socket set, and safety gloves.
Ensure the vehicle is in a safe location and the parking brake is engaged.

2. Battery Inspection

Sub-step 1: Disconnect the negative terminal of the battery using a wrench.
Sub-step 2: Clean any corrosion from the battery terminals using a wire brush.
Sub-step 3: Reconnect the terminals securely and check for tightness.

3. Starter Motor Bypass Test

Sub-step 1: Locate the starter motor under the vehicle, generally near the transmission.
Sub-step 2: Use jumper cables to connect the positive terminal of the battery to the solenoid terminal of the starter.
Sub-step 3: Observe if the starter engages and the engine cranks; if it does, the starter may need replacement.

4. Fuse Inspection

Sub-step 1: Locate the fuse box (refer to the owner's manual for exact location).
Sub-step 2: Remove and inspect each fuse related to the starting system using a fuse puller or pliers.
Sub-step 3: Replace any blown fuses with the correct amperage.

5. Ignition System Check

Sub-step 1: Test the ignition switch functionality by measuring voltage at the switch with the key in the "Start" position.
Sub-step 2: If there’s no voltage, replace the ignition switch.