why does my BMW 5 Series G30/G31 (2017-2024) not respond to remote start?

BMW 5 Series G30/G31 (2017-2024)

Error Codes

1-2 hours

Time

medium

Difficulty

medium

Severity

3 min read

542 words

Problem Statement

The BMW 5 Series G30/G31 (2017-2024) is not responding to the remote start function, indicating a potential issue with the remote start system or related components.

Estimated Time

1-2 hours

⚠️ Safety Warnings

Important safety information - read before proceeding

•Disconnect the battery before working on electrical systems.
•Ensure the vehicle is secure and cannot roll while performing diagnostics.

Symptoms

•Remote start feature fails to activate
•No response from key fob when attempting to start the engine remotely
•Dashboard lights may illuminate but engine does not start
•Security or warning lights illuminated on the dashboard
•Potential battery drain if the vehicle attempts to start without success

Diagnostic Steps

1
Check the battery level of the key fob to ensure it is functioning properly.
2
Inspect the vehicle’s battery for sufficient charge and proper connection.
3
Scan the vehicle’s computer system for any fault codes using an OBD-II scanner.
4
Verify that the remote start feature is enabled in the vehicle settings.
5
Check for any blown fuses related to the remote start system.
6
Ensure all doors are closed and that there are no open warnings that would prevent remote start.

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
•Small flathead screwdriver

Parts Required

•Key fob battery
•Fuses (if any are blown)

Related Faults

Share this solution

Comments

No comments yet

Be the first to share your thoughts

Back to Generation

Symptoms

•Remote start feature fails to activate

•No response from key fob when attempting to start the engine remotely

•Dashboard lights may illuminate but engine does not start

•Security or warning lights illuminated on the dashboard

•Potential battery drain if the vehicle attempts to start without success

Diagnostic Steps

1
Check the battery level of the key fob to ensure it is functioning properly.
2
Inspect the vehicle’s battery for sufficient charge and proper connection.
3
Scan the vehicle’s computer system for any fault codes using an OBD-II scanner.
4
Verify that the remote start feature is enabled in the vehicle settings.
5
Check for any blown fuses related to the remote start system.
6
Ensure all doors are closed and that there are no open warnings that would prevent remote start.

Solution

1. Preparation

Gather necessary tools and parts.
Ensure the vehicle is parked in a safe area with adequate space.
Disconnect the negative terminal of the vehicle battery for safety.

2. Check Key Fob Battery

Remove the key fob battery cover using a small flathead screwdriver.
Replace the old battery with a new one, ensuring the correct polarity.
Reassemble the key fob and test the remote start function.

3. Inspect Vehicle Battery

Reconnect the vehicle battery.
Use a multimeter to check the voltage; it should read around 12.6 volts.
If the voltage is low, charge the battery or replace it if necessary.

4. Scan for Fault Codes

Connect an OBD-II scanner to the vehicle’s diagnostic port.
Retrieve any stored fault codes and note them for reference.
Clear the codes and attempt to use the remote start again.

5. Inspect Fuses

Locate the fuse box (refer to the owner's manual for specific location).
Check the fuses related to the remote start system; replace any blown fuses with the same amperage rating.
Re-test the remote start function.

6. Verify Settings

Use the vehicle’s infotainment system to navigate to the remote start settings.
Ensure that the feature is enabled and configured according to your preferences.
Test the remote start again after adjustments.