Mercedes Benz

  The Falcon Wing Doors (FWD) on the Model X are a marvel of engineering but remain the most complex part of the vehicle, prone to specific mechanical and sensor "gremlins." 1 Here are 5 labels for Model X Falcon Wing Door issues, updated with 2026 data: Phantom Obstacle Detection, Cause: The ultrasonic sensors (USS) are glued to the inside of the door skin. Heat or direct sunlight can cause the adhesive to soften, letting the sensor sag and detect the interior door metal as a "ghost" obstacle, preventing the door from opening. Solution: Tesla Service technicians reattach the sensor using high-strength butyl patches (often called "flea tape") which resists heat better than the factory glue. Calibrating the doors via Service Mode can also temporarily reset sensitivity. Hinge & Primary Strut "Groaning", Cause: The heavy lifting duty of the secondary and primary struts leads to seal wear or "clicking" in the central spine hinges...