how to fix the headlights that won’t turn off in my Volkswagen Golf Seventh Generation (2013-2020)?

Volkswagen Golf Eighth Generation (2020-present)

Error Codes

1-2 hours

Time

medium

Difficulty

medium

Severity

3 min read

538 words

Problem Statement

Learn how to diagnose and fix headlights that won't turn off in your Volkswagen Golf (2013-2020). Step-by-step guide with tools and safety tips.

Affected Component

Electrical

Estimated Time

1-2 hours

⚠️ Safety Warnings

Important safety information - read before proceeding

•Disconnect battery before working on electrical systems.
•Ensure the vehicle is in park and the ignition is off before performing repairs.

Symptoms

•Headlights stay on after the vehicle is turned off
•Dashboard warning lights related to lighting systems may illuminate
•Battery drains quickly when the vehicle is not in use
•Headlight switch feels loose or unresponsive
•Possible flickering of headlights during operation

Diagnostic Steps

1
Inspect the headlight switch for damage or malfunction.
2
Use an OBD-II scanner to check for any related error codes in the vehicle's system.
3
Check the battery voltage with a multimeter to confirm if it is being drained.
4
Inspect the wiring and connectors related to the headlight system for shorts or corrosion.
5
Verify the operation of the headlight relay in the fuse box.
6
Test the automatic headlight feature settings if equipped.

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

•Screwdriver set
•Multimeter
•OBD-II scanner
•Socket set

Parts Required

•New headlight switch (if faulty)
•New headlight relay (if defective)

Related Faults

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Diagnostic Steps

1
Inspect the headlight switch for damage or malfunction.
2
Use an OBD-II scanner to check for any related error codes in the vehicle's system.
3
Check the battery voltage with a multimeter to confirm if it is being drained.
4
Inspect the wiring and connectors related to the headlight system for shorts or corrosion.
5
Verify the operation of the headlight relay in the fuse box.
6
Test the automatic headlight feature settings if equipped.

Solution

1. Preparation

Gather all necessary tools and parts.
Disconnect the negative battery terminal to ensure safety.
Tools Required:
- Screwdriver set
- Multimeter
- OBD-II scanner
- Socket set

2. Inspect and Replace Headlight Switch

Remove the headlight switch from the dashboard:
1. Use a screwdriver to carefully remove the trim panel surrounding the headlight switch.
2. Unscrew and disconnect the headlight switch connector.
Test the switch:
1. Set the multimeter to the continuity setting.
2. Check for continuity across the switch terminals while toggling the switch.
If faulty, replace with a new headlight switch:
1. Connect the new switch and secure it in place.
2. Reinstall the trim panel.

3. Check Headlight Relay

Locate the fuse box under the dashboard or in the engine compartment.
Identify the headlight relay using the fuse box diagram.
Remove the relay and visually inspect it for damage.
If defective, replace the relay with a new one:
1. Install the new relay in the same position.
2. Ensure it is seated properly.

4. Inspect Wiring and Connectors

Visually inspect the wiring harness connected to the headlights and switch:
1. Look for frayed wires, corrosion, or loose connectors.
2. Repair or replace any damaged wiring.
Ensure all connectors are firmly attached.

5. Reconnect Battery and Test

Reconnect the negative battery terminal.
Start the vehicle and check if the headlights operate normally.
Test the switch and ensure the headlights turn off when the vehicle is turned off.