how to fix BMW 5 Series G30/G31 (2017-2024) window won’t go up?

BMW 5 Series G30/G31 (2017-2024)

Error Codes

2-4 hours

Time

medium

Difficulty

medium

Severity

3 min read

532 words

Problem Statement

The window on a BMW 5 Series G30/G31 (2017-2024) is not functioning properly and will not go up.

Estimated Time

2-4 hours

⚠️ Safety Warnings

Important safety information - read before proceeding

•Disconnect the battery before working on electrical components.
•Use caution when handling glass to avoid injury.

Symptoms

•Window remains in the down position and does not respond to the switch
•Clicking or grinding noise when attempting to operate the window
•Window may partially go up and then stop
•No movement at all when the window switch is pressed
•Warning message on the dashboard related to window operation

Diagnostic Steps

1
Inspect the window switch for physical damage or wear.
2
Use an OBD-II scanner to check for any related error codes.
3
Check the window motor by applying direct power to it.
4
Inspect the wiring harness and connections at the window motor and switch.
5
Test the window regulator for any mechanical obstructions or damage.
6
Verify the battery voltage and overall electrical system health.

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

•Remove the door panel using a flathead screwdriver and Torx screwdriver.
•Disconnect the window switch connector and test for continuity with a multimeter.

Parts Required

•Window switch (if faulty)
•Window motor (if defective)
•Window regulator (if damaged)

Related Faults

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Symptoms

•Window remains in the down position and does not respond to the switch

•Clicking or grinding noise when attempting to operate the window

•Window may partially go up and then stop

•No movement at all when the window switch is pressed

•Warning message on the dashboard related to window operation

Diagnostic Steps

1
Inspect the window switch for physical damage or wear.
2
Use an OBD-II scanner to check for any related error codes.
3
Check the window motor by applying direct power to it.
4
Inspect the wiring harness and connections at the window motor and switch.
5
Test the window regulator for any mechanical obstructions or damage.
6
Verify the battery voltage and overall electrical system health.

Solution

1. Preparation

Gather the necessary tools and parts.
Disconnect the negative battery terminal to ensure safety.
Remove any door panel if needed to access the window components.

2. Inspect and Replace Window Switch

Tools Required: Flathead screwdriver, Torx screwdriver, multimeter.
Remove the door panel using a flathead screwdriver and Torx screwdriver.
Disconnect the window switch connector and test for continuity with a multimeter.
If the switch is faulty, replace it with a new one by reconnecting the new switch and securing it in place.

3. Test and Replace Window Motor

Tools Required: Multimeter, basic hand tools (socket set, screwdriver).
Locate the window motor and disconnect its wiring harness.
Apply 12 volts directly to the motor terminals to check for functionality. If the motor does not operate, replace it.
To replace, remove the motor mounting screws, take out the old motor, and install the new motor in reverse order.

4. Inspect and Replace Window Regulator

Tools Required: Socket set, pry tool.
Remove the window glass from the regulator if there’s partial movement.
Remove the window regulator assembly by unscrewing it from the door frame.
Replace the regulator with a new one, ensuring it is correctly aligned and secured.

5. Reassemble the Door Panel

Reconnect all wiring harnesses.
Reattach the door panel by aligning it properly and securing it with screws.
Reconnect the negative battery terminal.