why are the locks on my BMW 5 Series F10/F11 (2010-2017) not working remotely

BMW 5 Series F10/F11 (2010-2017)

Error Codes

1-3 hours

Time

medium

Difficulty

medium

Severity

3 min read

579 words

Problem Statement

The remote locking system on a BMW 5 Series F10/F11 (2010-2017) is malfunctioning, preventing the vehicle doors from locking or unlocking via the key fob.

Estimated Time

1-3 hours

⚠️ Safety Warnings

Important safety information - read before proceeding

•Ensure the vehicle is off and keys are removed before working on electrical systems.

Symptoms

•Remote key fob not responding to lock/unlock commands
•Central locking system not engaging when using the key fob
•Audible click from locks but no movement
•Warning message on the dashboard regarding the key fob
•Manual locking and unlocking of doors is functional
•Battery in the key fob is new or replaced recently

Diagnostic Steps

1
Check the battery voltage of the key fob using a multimeter.
2
Inspect the key fob for physical damage or water exposure.
3
Scan the vehicle's OBD-II system for any error codes related to the central locking system.
4
Verify the central locking system fuse is intact and functioning.
5
Test the central locking system using the interior lock/unlock switch.
6
Examine the door lock actuators for proper operation.

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
•Fuse puller
•OBD-II scanner
•Basic socket set
•Panel removal tool

Parts Required

•CR2032 battery (for key fob)
•Central locking system fuse (if blown)
•Door lock actuator (if faulty)

Related Faults

Share this solution

Comments

No comments yet

Be the first to share your thoughts

Back to Generation

Symptoms

•Remote key fob not responding to lock/unlock commands

•Central locking system not engaging when using the key fob

•Audible click from locks but no movement

•Warning message on the dashboard regarding the key fob

•Manual locking and unlocking of doors is functional

•Battery in the key fob is new or replaced recently

Diagnostic Steps

1
Check the battery voltage of the key fob using a multimeter.
2
Inspect the key fob for physical damage or water exposure.
3
Scan the vehicle's OBD-II system for any error codes related to the central locking system.
4
Verify the central locking system fuse is intact and functioning.
5
Test the central locking system using the interior lock/unlock switch.
6
Examine the door lock actuators for proper operation.

Solution

1. Preparation

Gather tools including a multimeter, fuse puller, OBD-II scanner, and a basic socket set.
Ensure the vehicle is in a well-ventilated area and the ignition is off.

2. Check Key Fob Battery

Open the key fob casing using a small flathead screwdriver.
Remove the battery and test its voltage with a multimeter; it should be around 3 volts.
Replace with a new CR2032 battery if the voltage is low.
Reassemble the key fob and test the remote functionality.

3. Inspect Fuses

Locate the fuse box (usually under the dashboard or in the engine compartment).
Use a fuse puller to remove the central locking system fuse.
Inspect the fuse for continuity; replace it with the same amperage if blown (typically 10A).
Reinstall the fuse and test the remote locking function.

4. Reset the Key Fob

Sit inside the vehicle and close all doors.
Insert the key fob into the ignition and turn it to the ON position without starting the engine.
Press and hold the lock button on the fob for about 10 seconds.
Remove the fob and test the remote functionality.

5. Examine Door Lock Actuators

Remove the interior door panel by unscrewing trim screws and using a panel removal tool.
Inspect the door lock actuator for any signs of damage or disconnection.
Test the actuator with a multimeter to ensure it receives power when the lock button is pressed.
Replace the actuator if it is faulty.