VEHICLE BUYER'S GUIDE
Mercedes-Benz GLS2017–2026
Year-by-year buyer intelligence from NHTSA safety data — reliability, value, and which years to target or avoid.
Best Years to Buy a Mercedes-Benz GLS
Buyer Score combines reliability (65%) and depreciation value (35%) — higher is better.
Mercedes-Benz GLS Years to Avoid
9 recalls · 0 complaints
Top issue: No complaints on record
7 recalls · 0 complaints
Top issue: No complaints on record
3 recalls · 0 complaints
Top issue: No complaints on record
Mercedes-Benz GLS — Year-by-Year Comparison
Every model year ranked by Buyer Score. Click any year for its detailed problem report.
| Year | Recalls | Complaints | Injuries | Deaths | Reliability | Value | Buyer Score | Verdict |
|---|---|---|---|---|---|---|---|---|
| 2026 | 1 | 0 | — | — | 81 | 40 | 67 | Good |
| 2025 | 1 | 0 | — | — | 81 | 55 | 72 | Good |
| 2024 | 0 | 0 | — | — | 81 | 68 | 76 | Excellent |
| 2023 | 0 | 0 | — | — | 81 | 78 | 80 | Excellent |
| 2022 | 3 | 0 | — | — | 73 | 85 | 77 | Good |
| 2021 | 7 | 0 | — | — | 56 | 88 | 67 | Avoid |
| 2020 | 9 | 0 | — | — | 56 | 87 | 67 | Avoid |
| 2019 | 2 | 0 | — | — | 79 | 83 | 80 | Good |
| 2018 | 2 | 0 | — | — | 79 | 77 | 78 | Good |
| 2017 | 3 | 0 | — | — | 73 | 70 | 72 | Good |
Buyer Score = Reliability (65%) + Value window (35%). Deaths and injuries sourced from NHTSA complaint filings. Year links open full NHTSA problem reports.
Shopping by Era
How each generation of the GLS compares — best year within each era shown.
2018–Present
Modern safety tech, refreshed platforms, updated powertrains. Higher purchase price but lower reliability risk. Best pick in this era: 2019 (Buyer Score 80).
2013–2017
Mid-decade models in the depreciation sweet spot — typically 35–55% below original MSRP. Inspect carefully for powertrain wear and recall completion. Best: 2017 (Buyer Score 72).
Frequently Asked Questions
What is the best year GLS to buy?+
The 2019 Mercedes-Benz GLS scores highest on our Buyer Score (80/100) — combining a reliability score of 79/100 with a value score of 83/100. It has 2 recalls and 0 NHTSA complaints on record.
Which GLS years have the most problems?+
The 2020, 2021, 2017 model years have the highest problem scores in our analysis. The 2020 GLS leads with 9 recalls and 0 owner complaints.
What is the Buyer Score?+
The Buyer Score is a composite metric that combines reliability (65% weight) and depreciation value (35% weight). Reliability reflects recall and complaint severity. Value reflects how much of the vehicle's depreciation has already been absorbed by prior owners — a 4–6 year old vehicle typically sits in the sweet spot.
What are the most common GLS problems?+
See the complaint chart on this page for a breakdown by component.
Deep-Dive Research
A buyer's guide shows model-level risk. A VIN report shows the individual vehicle — accidents, odometer history, open recalls, and auction records.