2021-2024 BMW X1 Automatic Tailgate Fails to Open TSB

Owners of 2021-2024 BMW X1 (U11 E-Series) vehicles may experience an issue where the automatic tailgate sporadically fails to open when commanded. This problem, detailed in BMW Service Information Bulletin SIB 51 10 24, can manifest when attempting to open the tailgate via the interior button on the driver's door panel, the key fob, or the switch on the tailgate itself. In some cases, the tailgate may release but only open a short distance before stopping.

Symptoms

If your BMW X1 automatic tailgate fails to open or operates inconsistently, you might notice the following:

• "The tailgate sporadically fails to open when signaled via- The interior button (driver's door panel) Button on key fob The switch on the tailgate (inside or outside)"
• The tailgate releases but only opens a short distance before stopping.

Causes

According to BMW, there are two primary causes for the BMW X1 automatic tailgate fails to open issue:

• Overload current detection in the HKFM (Tailgate function module): This occurs when the system detects excessive current draw, possibly indicating resistance in the tailgate's movement.
• Blockage detection in the HKFM: The system identifies an obstruction preventing the tailgate from opening or closing smoothly.

Diagnosis and Trigger Conditions

To diagnose the issue, technicians will first check the tailgate's alignment. Misalignment can contribute to the problem. They will also determine the vehicle's current I-level using diagnostic tools like AIR or ISPA NEXT/AWP. If the I-level is below U006-24-03-540, programming the vehicle is a necessary step.

Repair Procedure Summary

BMW Service Information Bulletin SIB 51 10 24 outlines a multi-step repair process, though not all steps may be necessary for every vehicle. The procedure includes:

1. Checking Tailgate Alignment: Technicians will inspect the tailgate's flushness and gap width relative to the side panel and roof spoiler. Specific measurements are provided for points 1, 2, and 3 on the tailgate. If misalignment is found, repair instructions in ISTA/AIR (41 62 014) are referenced.
2. Programming the Vehicle: If the vehicle's I-level is below U006-24-03-540, the vehicle must be programmed using ISTA version 4.47.1x or higher. This programming ensures all programmable control modules have the latest software. A function test is performed after programming to verify the fix.
3. Adjusting the Spindle Drive Attachment Lever: If programming doesn't resolve the issue, technicians will loosen and adjust the bolts on the spindle drive attachment lever to utilize its bolting play. The bolts are then retightened.
4. Replacing the Spindle Drive: As a final step, if the previous adjustments and programming do not fix the problem, the tailgate spindle drive may need to be replaced. Repair instructions in ISTA/AIR (51 24 351) are followed for this procedure.

Required Tools or Parts

For repairs involving part replacement, the following part numbers for the spindle drive tailgate may be used:

• 51 24 9 450 475 (Spindle drive tailgate) - 1 needed if applicable.
• 51 24 5 B4F CB5 (Spindle drive tailgate) - 1 needed if applicable.

When programming the vehicle, it is crucial to always connect a BMW-approved battery charger/power supply (SI B04 08 09) to maintain stable voltage throughout the process.

Important Warnings

Owners should be aware that not all of the listed corrections will be needed to repair the vehicle. The repair process is diagnostic and progressive, meaning technicians will perform steps as necessary to resolve the specific fault.

Owner Action

If your 2021-2024 BMW X1 automatic tailgate fails to open or exhibits the described symptoms, it is recommended to schedule an appointment with an authorized BMW service center. Technicians will perform the necessary diagnostics and repairs as outlined in SIB 51 10 24. Repairs addressing verified material or workmanship defects are typically covered under the BMW New Vehicle Limited Warranty.

NHTSA ID: 10253346