Taillight Installation GuideUpdated a month ago

Tools Required

• Trim removal tools (plastic preferred)

• Ratchet with 8mm or 10mm socket (varies by model)

• Microfiber cloth

1️. Preparation

• Open the Trunk, and access the inside of the trunk where the taillight wiring is located.

• Remove the carpeted liner or plastic cover behind the taillight using a trim tool or by hand. This exposes the taillight bolts and wiring harness.

2️. Disconnect the Wiring Harness

• ⚠ Always disconnect the car battery before doing any electrical work to avoid shorts or error codes, especially with LED or OLED lights.

• Locate the connector going to the taillight.

• Press the tab and unplug it carefully.

3️. Remove Mounting Bolts

• Use your socket wrench to remove the bolts or nuts holding the taillight in place.

• Hold the taillight as you remove the last bolt. It may fall or slide out.

4️. Remove the Old Taillight

• Gently pull the taillight out from the rear of the car.

• If it is stuck, carefully wiggle it. There may be alignment pins or clips holding it.

5️. Install the New Taillight

• Line up the new taillight with the guide pins and mounting holes.

• Carefully push it into place.

• Reinstall the bolts and tighten snugly. Be careful not to overtighten as you could crack the light or the body panel.

6. Reconnect the Wiring Harness

• Plug the wiring back in securely.

• For some taillights you may need to

  • Use adapters included in the kit.

7. Test the Lights

• Reconnect the battery.

• Test brake lights, turn signals, reverse, and parking lights.

• Make sure there are no error messages on the dash.

8. Reassemble Trunk Liner

• Once everything is confirmed to work, reinstall the trunk liner or plastic cover.

✅ Installation Complete!
You're now ready to enjoy your upgraded BMW.