how to fix the remote start not working on my Volkswagen Golf MK7.5 (2020-Present)

Volkswagen Golf MK7.5 (2020-Present)

Error Codes

1-2 hours

Time

medium

Difficulty

medium

Severity

3 min read

503 words

Problem Statement

Learn how to diagnose and fix the remote start issue on your Volkswagen Golf MK7.5. Step-by-step guide with symptoms, diagnostic steps, and solutions.

Affected Component

Electrical

Estimated Time

1-2 hours

⚠️ Safety Warnings

Important safety information - read before proceeding

•Ensure the vehicle is in a safe environment when working on electronic systems.

Symptoms

•Remote start button on the key fob is unresponsive
•Engine does not start when remote start is activated
•Dashboard lights do not illuminate during remote start attempt
•No audible confirmation (horn honk or lights flashing) when remote start is initiated
•Check engine light may be illuminated

Diagnostic Steps

1
Verify that the key fob battery is functioning and replace if necessary.
2
Check for any error codes using an OBD-II scanner.
3
Ensure that all doors, hood, and trunk are fully closed.
4
Confirm that the vehicle is in park (P) and that the brake pedal is not pressed.
5
Inspect the remote start system settings in the vehicle’s infotainment system.
6
Test the key fob for proper operation by attempting to unlock/lock the vehicle.

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

•OBD-II scanner
•Small flat-head screwdriver

Parts Required

•Key fob battery (CR2032)

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Symptoms

•Remote start button on the key fob is unresponsive

•Engine does not start when remote start is activated

•Dashboard lights do not illuminate during remote start attempt

•No audible confirmation (horn honk or lights flashing) when remote start is initiated

•Check engine light may be illuminated

Diagnostic Steps

1
Verify that the key fob battery is functioning and replace if necessary.
2
Check for any error codes using an OBD-II scanner.
3
Ensure that all doors, hood, and trunk are fully closed.
4
Confirm that the vehicle is in park (P) and that the brake pedal is not pressed.
5
Inspect the remote start system settings in the vehicle’s infotainment system.
6
Test the key fob for proper operation by attempting to unlock/lock the vehicle.

Solution

1. Preparation

Gather necessary tools and parts.
Ensure the vehicle is parked safely and the ignition is off.

2. Replace Key Fob Battery

Tools Required: Small flat-head screwdriver, replacement battery (CR2032).
Steps:
1. Use the flat-head screwdriver to gently pry open the key fob casing.
2. Remove the old battery and insert the new CR2032 battery, ensuring correct polarity.
3. Snap the key fob casing back together securely.

3. Check and Clear Error Codes

Tools Required: OBD-II scanner.
Steps:
1. Connect the OBD-II scanner to the vehicle's diagnostic port.
2. Turn on the ignition without starting the engine.
3. Scan for error codes and note any relevant codes pertaining to the remote start system.
4. Clear any error codes and attempt to use the remote start feature again.

4. Inspect Remote Start Settings

Tools Required: Vehicle's infotainment system.
Steps:
1. Start the vehicle and navigate to the settings menu on the infotainment screen.
2. Locate the remote start settings and ensure it is enabled.
3. Check any conditions required for remote start (e.g., climate control settings).

5. Test Remote Start Functionality

Steps:
1. Ensure the vehicle is in park and all doors are closed.
2. Attempt to start the vehicle remotely using the key fob.
3. Listen for any confirmation sounds (horn or lights) indicating successful activation.