Mercedes-Benz GLS 450 4MATIC Problems by Model Year
NHTSA recorded 45 consumer complaints across the 4 model years of the Mercedes-Benz GLS 450 4MATIC (2022–2025) that have at least 5 complaints. 2022 has the most, with 16. Across all years, the part named most often is other or unknown (12 mentions). Pick a model year below to see its parts, mileage, recalls and service bulletins.
All GLS 450 4MATIC model years
Years with fewer than 5 complaints are not listed. The score compares years of the same model, allowing for the era and for how long each year has collected complaints: 50 is a typical year, lower means fewer complaints. It is not adjusted for sales volume.
| Year | Complaints | Median mi | Recalls | TSBs | Score (50 = typical) | Trend |
|---|---|---|---|---|---|---|
| 2025 | 7 | 10,000 | 1 | 127 | — | Too new |
| 2024 | 15 | — | 0 | 231 | — | Too new |
| 2023 | 7 | 11,000 | 5 | 229 | — | Too new |
| 2022 | 16 | 25,100 | 10 | 246 | — | Rising |
Parts named most often, all years
Counts add up complaint mentions across the listed years. A complaint can name several parts.
- Other or unknown12 20%
- Forward collision avoidance10 16%
- Electrical system10 16%
- Engine8 13%
- Brakes8 13%
- Transmission and drivetrain5 8.2%
- Wheels4 6.6%
- Lane departure4 6.6%
Example complaints
One per model year, chosen for length and detail. Personal details are removed. They are consumer reports, not findings.
2022: “The vehicle caught fire while parked and running in the driveway of my home. There were no modifications, no accident, and no external cause. The fire occurred without warning and posed a serious safety risk to occupants and property. The vehicle was under manufacturer warranty at the time of the incident. The fire caused damages to my house too. There were no warning lamps or messages. Benz has not done an investigation yet.”
NHTSA complaint #11711487, filed 2026-012024: “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 complaint #11671311, filed 2025-072023: “when coming to a stop and applying the break, the transmission stalled. a warning was issued around lane keeping assist and a second warning. Then the transmission light was on. It was not at risk in the moment because no one was behind me and I was coming to a stop sign. If it prevented me from stopping I might have gone through the stop sign It is at the dealership today to service. no warning lamps, messages or other symptoms.”
NHTSA complaint #11609931, filed 2024-08Other Mercedes-Benz models
3,963 complaintsMercedes-Benz E350
2,215 complaintsMercedes-Benz E320
1,164 complaintsMercedes-Benz ML350
952 complaintsMercedes-Benz GLK350
901 complaintsMercedes-Benz ML320
740 complaintsMercedes-Benz C250
725 complaintsMercedes-Benz GLC 300
657 complaints
About this data. Data from NHTSA (ODI) complaints, recalls, TSBs and investigations, updated Oct 27, 2026. Complaints are unverified consumer reports and may be duplicated or inaccurate. Methodology