The average asking price for a used 2019 Mercedes-Benz GLS 450 is $21,501, with 87,071 miles on average, across 158 cars for sale at U.S. dealers as of Nov 10, 2026.
Used 2019 Mercedes-Benz GLS 450s for sale at U.S. dealers ask $21,501 on average (half ask less than $21,027), across 158 cars. The cars for sale have 87,071 miles on average: one with fewer miles is worth more, and one with more is worth less. To check one car's price against cars of its trim and mileage, enter its VIN in OttoQuest's free Deal Check.
Among states with at least 10 for sale, Florida has the lowest average asking price, $20,219 across 22 cars with 90,782 miles on average, and Illinois the highest, $23,084 across 11 with 83,523 miles on average. Part of a gap between states is mileage and trim, not the state.
The 140 for sale with a listing date have been listed 69 days on average. A car listed much longer than that, or one whose price has already been cut, usually leaves more room to negotiate.
The 2019 asks $21,501 on average with 87,071 miles; the 2018 asks $18,158 with 97,229 miles, and the 2020 asks $30,353 with 77,196 miles.
NHTSA lists 3 safety recall campaigns that cover the 2019 Mercedes-Benz GLS 450. Repairs are free at a dealer of the make; check a car's VIN with NHTSA before you buy to see whether its recalls were fixed.
Used and certified cars for sale at US dealers, each car counted once. Days listed are the dealer’s own days on market where they publish it. Price moves compare the same cars at both ends of the window.
| $21,141 |
| 92,509 |
| 6 |
| 60 |
| Alabama | $21,007 | 97,471 | 5 | 116 |
| Indiana | $20,036 | 100,844 | 5 | 48 |
| New Jersey | $20,831 | 76,598 | 5 | 59 |
