how to fix the remote start not working on my Volkswagen Golf MK7 (2015-2019)

Volkswagen Golf MK8.5 (2024-Present)

Error Codes

1-2 hours

Time

medium

Difficulty

medium

Severity

3 min read

495 words

Problem Statement

Learn how to diagnose and fix the remote start issue on your Volkswagen Golf MK7 (2015-2019). Step-by-step guide with diagnostic procedures 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 components to avoid short circuits.

Symptoms

•Remote start button does not activate the engine
•No response from the vehicle when attempting to start remotely
•Key fob battery may be weak or dead
•Check engine light illuminated
•Security system warning light may be flashing
•Ignition system may not engage

Diagnostic Steps

1
Check the key fob battery and replace it if necessary.
2
Verify that the remote start feature is enabled in the vehicle settings.
3
Use an OBD-II scanner to check for any stored error codes that may indicate issues with the engine or security system.
4
Inspect the vehicle’s security system for any active immobilizer faults.
5
Ensure that all doors are closed and that the vehicle is in park mode.
6
Test the key fob signal strength by pressing the button close to 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
•Multimeter
•Screwdriver set

Parts Required

•Key fob battery (CR2032)

Related Faults

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Diagnostic Steps

1
Check the key fob battery and replace it if necessary.
2
Verify that the remote start feature is enabled in the vehicle settings.
3
Use an OBD-II scanner to check for any stored error codes that may indicate issues with the engine or security system.
4
Inspect the vehicle’s security system for any active immobilizer faults.
5
Ensure that all doors are closed and that the vehicle is in park mode.
6
Test the key fob signal strength by pressing the button close to the vehicle.

Solution

1. Preparation

Gather necessary tools and parts.
Ensure the vehicle is parked safely and the ignition is off.
Disconnect the battery to prevent any electrical issues.

Tools Required:

OBD-II scanner
Multimeter
Screwdriver set

2. Check and Replace Key Fob Battery

Remove the key fob casing using a screwdriver.
Replace the old battery with a new one (CR2032 or as specified).
Reassemble the key fob and test the remote start function.

3. Verify Remote Start Settings

Reconnect the battery.
Turn on the ignition without starting the engine.
Access the vehicle settings through the infotainment system:
- Navigate to 'Vehicle' > 'Settings' > 'Remote Start.'
- Ensure the feature is enabled.

4. Inspect Security System

Use the OBD-II scanner to check for error codes.
If there are immobilizer-related codes, follow the manufacturer's instructions to reset or reprogram the key fob.
Inspect the wiring and connections related to the security system for any visible damage.

5. Test Remote Start Function

With the vehicle in park and all doors closed, press the remote start button on the key fob.
If the engine starts, the issue is resolved. If not, further inspection of the wiring may be needed.