Mercedes-Benz G 550 Problems by Model Year
NHTSA recorded 12 consumer complaints across the 2 model years of the Mercedes-Benz G 550 (2019–2021) that have at least 5 complaints. 2021 has the most, with 7. Across all years, the part named most often is electrical system (6 mentions). Pick a model year below to see its parts, mileage, recalls and service bulletins.
All G 550 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 |
|---|---|---|---|---|---|---|
| 2021 | 7 | — | 7 | 132 | — | Not enough data |
| 2019 | 5 | 1,925 | 12 | 146 | — | Not enough data |
Parts named most often, all years
Counts add up complaint mentions across the listed years. A complaint can name several parts.
- Electrical system6 32%
- Engine3 16%
- Suspension2 11%
- Fuel system2 11%
- Electronic stability control2 11%
- Brakes2 11%
- Visibility (wipers, defrost, mirrors)1 5.3%
- Vehicle speed control1 5.3%
Example complaints
One per model year, chosen for length and detail. Personal details are removed. They are consumer reports, not findings.
2019: “My 2019 g550 has been to mercedes dealers twice for a front/rear differential lock system malfunction error appearing on the display screen. Along with this it shows the ABS and esp are be inactive. Each time at a mercedes dealer they replace parts and say it is fixed. It is not fixed. This week I became stranded when I picked my dog up from the vet and this error message appeared, along with 'active distance assist inoperative', 'active brake assist functions limited', 'blind spot assist inoperative', 'steering malfunction increased physical effort' error messages. …”
NHTSA complaint #11323949, filed 2020-05, 3,350 miles2021: “Driving 2021 Mercedes-Benz G-550 for approximately 8min. Preceding East on a 3 lane South Florida Highway no more than 40 mph. Gas tank 75% full with V-Power From Shell. (filled-3 days prior). Proceeded from the middle lane to the right lane in-order to make a sharp right handed turn onto up coming Shopping Center, that was two lights away. I had turned on my 21 MB G550 air conditioner to auto (off prior). While I was attempting to switch on my turn signal the car suddenly turns-off completely in mid-drive. …”
NHTSA complaint #11485579, filed 2022-09Other 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