Used Mercedes-Benz GLS for Sale near Saint-Thomas, QC

How much does the Mercedes-Benz GLS cost in today's market?

Used Mercedes-Benz GLS prices span a wide range depending on model year. Here's what the market looks like right now:

The Mercedes-Benz GLS's current nationwide average price is $71,459 CAD, and its nationwide average price reached a low of $68,280 CAD over the past year. Recently, prices have come down for the 2022, 2023, and 2024 models, making now a good time to shop recent model years.

Is the Mercedes-Benz GLS a good car?

Yes — the Mercedes-Benz GLS is a strong choice if you want a large luxury SUV with comfort, space, and a premium driving feel.

The all-generations owner rating is 4.69/5 across every model year in the data.

Owners consistently praise the GLS for its luxurious comfort, smooth ride, and impressive performance. They also highlight the high-quality craftsmanship and premium feel that make it especially appealing as a three-row family vehicle. Across the model years, the GLS stands out for blending upscale materials with a refined driving experience.

Expert reviews rate the 2024 and 2021 models among the highest across all years.

The main trade-offs are fuel economy, third-row access, and some touch-sensitive controls, while the newest expert-tested model also brings a hands-on driver-assistance setup that asks you to stay engaged behind the wheel.

31.3% of listings are priced as good or great deals.

Are Mercedes-Benz GLS models reliable?

Owners consistently praise the GLS for its comfort, smooth ride, and premium craftsmanship, and expert coverage reinforces its quiet cabin and composed driving character. The model’s strong owner ratings across the years suggest that it leaves many shoppers satisfied with the ownership experience.

• Owners rate the Mercedes-Benz GLS between 4.5 and 5.0 out of 5 stars across all model years in the data.

For used buyers, long-term ownership risk is best managed by choosing a well-maintained example with a complete service history, since this is a large, complex luxury SUV.

What should I look for when buying a used Mercedes-Benz GLS?

Key things to evaluate:

• Fuel efficiency: The 2026 GLS 450 is rated at 11.3 litres per 100 kilometres combined, and the test route returned 12.1 L/100 km.
• Infotainment: Wireless Apple CarPlay and Android Auto, plus navigation with augmented reality enhancement, are standard.
• Safety package: Nearly 40 safety and driver assistance systems appear on the standard equipment list, including Pre-Safe, Crosswind Assist, front and rear parking sensors, a surround-view camera system, and Car-to-X Communication.

Which Mercedes-Benz GLS trim should I buy?

The 2026 Mercedes-Benz GLS offers these trims:

• GLS 450: Best-value choice for most buyers, with a turbocharged 3.0-litre inline-six, mild-hybrid assist, 375 horsepower, 369 pound-feet of torque, a nine-speed automatic transmission, standard 4Matic AWD, and a long list of standard luxury and tech features.
• GLS 580: Adds a more powerful V8 for buyers who want stronger performance and a higher level of output.
• AMG GLS 63: Brings the performance-focused AMG version with the most aggressive character in the lineup.
• Maybach GLS 600: Sits at the top of the range with the most opulent presentation and the highest level of luxury.

What Mercedes-Benz GLS do most buyers choose?

The Mercedes-Benz GLS years with the most listings are 2022, 2018, and 2021.

Higher-listing years tend to draw more shoppers because they give you more inventory to compare, which can make it easier to find the right trim, colour, and price. They also often become the most practical used picks when deal percentages are healthy.

What is the Mercedes-Benz GLS's resale value?

The table shows broad downward movement across the GLS lineup, which can work in your favour if you’re shopping used. Several years have seen double-digit drops, while the smaller declines at the top of the table suggest some model years are softening more quickly than others. Overall, the pattern points to improving value for used buyers rather than strong price retention.

The 2021, 2022, and 2019 model years have held their value best, with the smallest year-over-year price changes.

Is the Mercedes-Benz GLS safe?

• 2026: 7/10
• 2024: 10/10
• 2022: 6/10
• 2021: 9/10

Nearly 40 safety and driver assistance systems appear on the 2026 GLS’s standard equipment list, including Pre-Safe and Crosswind Assist.

For the safest used buy, the 2024 model posts the highest confirmed score of 10/10.

Should I buy a used Mercedes-Benz GLS now or wait for the next model?

Buy now if:

• Price trend: The 2024 model is at −26.63% versus a year ago, and the 2023 model is at −12.78%.
• Deal availability: The 2023 model has 24.5% good and great deals.
• Sweet-spot year: The 2022 model has the most listings at a current average price of $70,138 CAD. The Mercedes-Benz GLS offers a quiet, comfortable cabin with a premium feel and a spacious three-row layout that suits family use well.

Consider waiting if:

• Powertrain/efficiency: A turbocharged 3.0-litre inline-six-cylinder engine provides 375 horsepower and 369 pound-feet of torque, and it’s coupled with a nine-speed automatic transmission and standard 4Matic all-wheel-drive (AWD).
• Tech: Wireless Apple CarPlay and Android Auto and a navigation system with augmented reality enhancement are standard.
• Safety: Nearly 40 safety and driver assistance systems appear on the 2026 GLS’s standard equipment list, including Pre-Safe, Crosswind Assist, and Car-to-X Communication.
• Starting price: Prices in Canada range from $125,395 to $247,795, including a $3,995 destination charge.

If you're buying used today, the 2022 model year offers the best mix of value and availability. If you want the latest tech and features, it may be worth waiting for the next model year's inventory to build up.

These recommendations are based on CarGurus' proprietary market data from October 13, 2026, CarGurus experts' opinions, and generative AI.