2017 Mercedes-Benz GLS 450 Electrical system Problems

“After owning the vehicle for more than 2 years, the rear tailgate opened by itself 3 times in 8 days. The first time, the vehicle was parked in our home garage. The second time, we were traveling on a citiy street when the tailgate just popped open on its own. The third time, when exiting a parking garage with a low roof, it opened by itself, striking the low overhang in the garage. This time, the glass was broken and the body damaged. The first incident occurred when the vehicle was parked. The second incident, the vehicle was moving at 35 MPH. …”

“Vehicle is only 3 weeks old. A faulty engine wire harness caused the vehicle to cease operating in traffic and put my family in a potentially life threatening situation. Mercedes did not replace but only repaired the wire, which we were told was not assembled correctly and was pinched in a bracket and subsequently chafed, which can potentially still cause a life threatening engine malfunction during normal operation. Mercedes is not willing to replace the engine harness wire, nor replace the vehicle. I fear for the safety of my family.”

“Our car, Mercedes GLS 450, caught on fire after pulled into the garage from a short drive on local streets, which resulted a total loss on our house. After pulling into the garage, the home link didn't work when tried to use it to close the garage door. Upon coming out of the car, smoke came out from under the hood and soon after it became flame. We attempted to extinguish the fire with a fire extinguisher as it appeared with hood still closed and fire immediately came back. By the time the firefighters came, there was a full fledged fire. …”

“On friday 11/30 my 2017 mercedes gl450 suffered a catastrophic electronic malfunction that LED to a) no ability to get car out of drive (e.g. Wouldn't park, reverse, couldn't take my foot off the brake), b) no ability to turn car off, c) power steering went out, d) airbags flagged as inactive, e) most all my dashboard warning lights went on including one that said malfunction , f) my dashboard gauges failed (e.g. No working odometer), g) the rear hatch couldn't open. This happened while driving my family -- including 2 young children -- through the desert, putting us at very great risk. …”

“The contact owns a 2017 Mercedes-Benz GLS450. The contact heard an abnormal humming sound when the vehicle was started, and the humming sound grew louder over time. The contact believed that the humming sound was coming from the driver's side headlamp. The contact stated that the headlamp was equipped with a small internal fan to dissipate heat. Additionally, other electrical failures were occurring, and the vehicle was taken to a local dealer. The dealer diagnosed the vehicle and determined that the blower motor had failed and needed to be replaced. …”