Used Mercedes-Benz GLS prices in Illinois
The median asking price for a used Mercedes-Benz GLS on Illinois dealer lots is $53,998 (Oct 2026). Prices run from $9,953 to $117,999 across 44 priced listings at 18 dealers; 5 dropped in price this week and 15 this month.
Asking prices as the dealers list them, updated regularly; no adjustment for mileage, trim, condition or dealer fees. Prices by state: every state we cover. Listings by city: Naperville, IL, Gurnee, IL.
By model year
| Year | Listings | From | To | Average |
|---|---|---|---|---|
| 2026 | 7 | $70,764 | $95,676 | $82,329 |
| 2025 | 9 | $49,976 | $69,576 | $58,212 |
| 2024 | 1 | $70,312 | $70,312 | $70,312 |
| 2023 | 3 | $48,673 | $117,999 | $73,557 |
| 2022 | 2 | $44,989 | $45,698 | $45,344 |
| 2021 | 6 | $32,408 | $108,989 | $63,931 |
| 2020 | 4 | $27,703 | $35,946 | $32,661 |
| 2019 | 5 | $21,376 | $38,411 | $27,063 |
| 2018 | 2 | $20,376 | $24,268 | $22,322 |
| 2017 | 5 | $9,953 | $21,908 | $16,561 |
Cheapest on the lots right now
All Mercedes-Benz GLS listings-
2017 Mercedes-Benz GLS 450 4MATIC®$9,953$951 price drop
$10,904 -
2017 Mercedes-Benz GLS 450$15,876
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2017 Mercedes-Benz GLS 450$17,190
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2017 Mercedes-Benz GLS 450$17,876
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2018 Mercedes-Benz GLS 450$20,376
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2019 Mercedes-Benz GLS 450$21,376