What are the reasons why the electric tailgate of the Mercedes-Benz RR350 cannot be opened?
3 Answers
The reason why the electric tailgate of the Mercedes-Benz RR350 cannot be opened may be due to a problem with the control box. Control box issues: The control box is the "computer" control center of the electric tailgate. If it malfunctions, it may not receive the switch command, causing the electric tailgate to fail to open. Additionally, there might be faults in the power lines, control lines, or adapter cables, leading to a lack of connection, which results in no power or signal to the tailgate, preventing it from opening. Lastly, the support rods or springs may have broken or detached, causing the electric tailgate to be unable to open. Solutions for an electric tailgate that cannot open: First, check whether the related circuits, fuses, and contacts are normal and whether the product configuration is damaged. Issues such as product accessories and wiring need to be confirmed and repaired at a professional repair shop. If the problem is intermittent and caused by improper operation, you can try manually opening the tailgate, then manually closing it to initialize the system and see if it can open normally. Of course, if the tailgate cannot open simply because the car was not in P (Park) mode when turned off, you can normally open it after shifting to P mode and turning off the engine.
Last time I drove out, the electric tailgate of my Mercedes-Benz GL350 just wouldn't open, which was really frustrating. Common reasons include the remote control running out of battery or signal interference, where pressing the button multiple times gets no response; the trunk button may be worn out with poor contact; or the vehicle battery might be weak, causing insufficient power supply and system protection. Also, the anti-pinch sensor could be too sensitive, mistakenly preventing opening when even a small object is nearby; or mechanical parts like hinges or locks might be stuck, especially during rainy days when rust and dust accumulate. Solutions include first trying to open it with the key remote or manually pulling the emergency rope; then checking the battery and fuses; regular cleaning of the trunk slide rails and buttons can prevent issues. I've encountered this situation before, and it improved significantly after cleaning.
Common issues with power tailgates often lie in the control circuit. I suspect it might be a blown fuse—the GL350's fuse box is located inside the cabin or engine compartment. Alternatively, the control module may have failed to reset, triggering protection when voltage fluctuates. Remote control malfunctions, such as dead batteries or signal interference, could also be the culprit. Hinge mechanism jamming or excessive load can cause the electronic system to disable itself. Sensor failures, like obstruction detection by the anti-pinch function, are another possibility. During troubleshooting, listen for relay clicking sounds; avoid overloading the trunk; regularly lubricate mechanical parts to reduce friction. For severe cases, it's more reliable to visit a professional shop for computer diagnostics and repairs.
