Home · 2024 Mercedes-benz GLS 450 4matic · Complaints
What 18 owners told NHTSA about the 2024 Mercedes-benz GLS 450 4matic
These are the actual owner complaints behind this car’s reliability verdict, filed with the federal government, unedited. They’re unverified reports, not confirmed defects: read them as leads for your pre-purchase inspection, not a diagnosis.
2 of 18 complaints match · Engine · clear filters
Jul 5, 2025Engine
i've purchased brand new 2024 gls 450 mercedes benz and this is the 3rd times i have to bring my car to the mercedes facility to add a quarter of oil and jerky shifting so i dont feel safety and comfortable to drive this car anymore. i need help or my money back, what do i need to do?.
NHTSA ODI 11671311
Apr 29, 2025Electrical systemEngineFuel systemFire
car spontaneously caught fire while driving, without any warning, with smoke first coming from the air vents followed by smoke from under the bonnet then visible fire engulfing the front of the car, it was serviced 6 weeks prior without any concerning findings on the mechanical or electrical components. 911 was called and fire was extinguished and insurance claim filed, currently being investigated by insurance as to what may have caused the fire.
NHTSA ODI 11657413
Working with the data? Download all 18 complaints as CSV · fetched from NHTSA July 14, 2026