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 ...
2017 mercedes benz gls450. consumer writes in regards to malfunctioning brakes. *ld the consumer stated the vehicle experienced premature wear of the brakes. the vehicle leaked fuel. the interior door trim was not secure. *js
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.
Overall the worst problem with Mercedes-Benz GLS450 relates to UNKNOWN OR OTHER problems. Browse the categories below to learn about the specific GLS450 years that are prone to issues with these components.