2020-2025 BMW X1 Tail Light Guide: F48 LED Failures & U11 Design Changes

Buyer's Alert: Two Different X1 Generations Use These Tail Lights

Symptoms of Tail Light Failure

A 'Tail Lamp Malfunction' or 'Check Rear Light' message on your dashboard is the most common indicator of a problem. This warning can be triggered by something as simple as a burnt-out bulb or a more complex internal failure. A visual inspection is the best next step.

Most Common Issue (2020-2022 F48 Models): LED Light Bar Failure

The most prevalent problem on the F48 X1 is the failure of the LED running light strips. You may notice that the distinctive red light bars are dim, flickering, or completely dark, while the brake lights and turn signals still function. This is a well-documented issue in online forums. Unfortunately, the LED portion is integrated into the housing and is not designed to be serviced separately. This means the entire tail light assembly must be replaced to fix a failed LED strip.

Other Potential Failures

• Burnt-Out Bulbs: For functions that still use incandescent bulbs (like reverse or turn signal lights on some trims), a simple bulb change may be all that's needed. The vehicle's diagnostic system is sensitive and will detect the change in resistance from a failing bulb even before it goes out completely.
• Corrosion or Melted Connectors: In some cases, high resistance in the bulb socket or connector can generate heat, leading to corrosion or even melting the plastic connector and bulb holder. This requires replacing the connector and pins, not just the bulb.
• Cracked Housing: A recall for the 2018-2019 X1 noted that attachment brackets could crack, causing the light to become loose or detach. While this recall doesn't officially cover 2020+ models, the underlying design is similar. Stress cracks in the lens plastic have also been reported by owners, which can allow moisture inside and damage electronics.

Known Issues, TSBs, and Recalls

While there are no specific tail light recalls for the 2020-2025 X1, it's important to be aware of other vehicle-wide safety recalls.

• 2020-2022 (F48): A recall (19V-070) was issued for 2018-2019 models due to cracking tail light attachment brackets. Owners of 2020 models should inspect this area for any signs of stress or cracking.
• 2023-2025 (U11): This newer generation has several recalls, though none are for the tail lights themselves. These include issues with the integrated brake system, B-pillar structural integrity, and seat belt retractors. A failure in the integrated brake system can affect brake light function and will display a warning on the dash.

Buying a Used Tail Light: What to Inspect

Given that a failed LED strip requires replacing the whole assembly, a used OEM part is an excellent, cost-effective solution. Here’s what to check before you buy:

1. Verify the Generation: The most critical step. Ensure the part is from a 2020-2022 F48 or a 2023-2025 U11, depending on your vehicle. They are not interchangeable.
2. Test the LEDs (F48): If possible, have the seller connect the light to a 12V power source. Confirm that all LED light bars illuminate brightly and evenly. This is the most common failure point.
3. Inspect the Lens: Look for any cracks, deep scratches, or signs of hazing. Pay close attention to the seams and edges for small stress cracks that could let water in.
4. Check Mounting Points: All plastic tabs and screw holes should be intact. The recall on earlier models for cracking brackets makes this a crucial inspection point. A broken tab can prevent the light from seating securely.
5. Examine the Connector: The electrical connector pins should be clean and free of corrosion. Look for any signs of melting or blackening on the plastic housing, which indicates a past electrical issue.
6. Confirm Inner vs. Outer: Be certain you are buying the correct piece. The 'outer' light mounts to the quarter panel (the body), while the 'inner' light mounts to the liftgate.

Installation Guide (2020-2022 F48 Models)

Replacing the tail lights on the F48 X1 is a straightforward DIY task. The difficulty is rated 1 out of 5.

Outer Tail Light (on Quarter Panel)

1. Open the trunk and locate the access panel in the carpet behind the tail light.
2. Remove the panel. You will see two 10mm nuts holding the assembly.
3. Remove the two 10mm nuts.
4. Gently push the tail light out from the inside. It will slide straight back.
🎬 Watch: How to remove and swap the outer tail lights
5. Press the release tab on the electrical connector and unplug it.
6. Installation is the reverse of removal.

Inner Tail Light (on Liftgate)

1. On the inside of the liftgate, locate the small plastic trim cover for the light you're replacing.
2. Use a trim tool or cloth-wrapped screwdriver to carefully slide and pop the cover off.
3. You will see a single 8mm hex bolt. Remove it.
4. Unplug the electrical connector.
5. The assembly can now be pushed out from the liftgate.
🎬 See this walkthrough for replacing the inner trunk-mounted light
6. Installation is the reverse of removal. Ensure the new light's gasket is seated properly to prevent leaks.

Cost Comparison

Frequently Asked Questions