Used Mercedes-Benz GLS for Sale near Campbellville, ON

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 $75,118 CAD, and its lowest point over the past year was $68,280 CAD. Recently, prices have come down for the 2023, 2024, and 2025 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 three-row luxury SUV with a premium feel and broad capability. The all-generations owner rating is 4.69/5 across every model year in the data.

Owners consistently praise its luxurious comfort, smooth ride, and strong performance. They also highlight the high-quality craftsmanship and premium driving experience, along with the GLS’s spacious, family-friendly packaging.

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

The main trade-offs that come up in recent expert coverage are third-row access, touch-sensing controls, and the AMG Line Package’s effect on entry and exit.

33.5% of listings are priced as good or great deals.

Are Mercedes-Benz GLS models reliable?

Owners consistently describe the Mercedes-Benz GLS as comfortable, powerful, and well built, with premium craftsmanship showing through across the lineup. Expert coverage also reinforces its refined character, smooth ride, and strong overall execution.

• 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, the long-term ownership picture looks strongest when you choose a well-maintained example with a clear service history and the equipment level that suits your needs.

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

Key things to evaluate:

• Safety package: Mercedes-Benz ADAS with forward-collision warning, lane-departure warning, lane-keeping assist, adaptive cruise control, and lane-centring assist.
• Infotainment: MBUX infotainment system with a 12.3-inch digital instrumentation panel and a 12.3-inch infotainment touchscreen, plus intuitive touchscreen operation, natural voice recognition technology, and augmented reality for the navigation system.
• Fuel efficiency: The official fuel economy rating is 11.3 litres per 100 kilometres in combined driving.

Which Mercedes-Benz GLS trim should I buy?

The 2024 Mercedes-Benz GLS offers these trims:

• GLS 450: The most affordable version, with a turbocharged 3.0-litre inline six-cylinder engine with mild-hybrid technology, plus the GLS’s core luxury and technology features. Best value if you want the GLS experience with the broadest appeal.
• GLS 580: Adds a twin-turbo V8 with mild-hybrid technology, and it is exclusively available with an Off-Road Package that includes underbody protection, up to 3 centimetres of added ground clearance, and improved water fording capability.
• AMG GLS 63: Brings the performance-focused V8 version for buyers who want the most athletic character in the range.
• Maybach GLS 600: The most luxurious version, aimed at buyers who want the richest cabin experience and the highest level of prestige.

What Mercedes-Benz GLS do most buyers choose?

The Mercedes-Benz GLS years with the most listings are 2025, 2023, and 2022.

Higher-volume years tend to draw more shopper attention because they usually give you more inventory to compare and more chances to find the right trim, colour, and equipment mix. They also often become the most popular used picks because there are simply more examples on the market at any given time.

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

Most GLS model years are showing double-digit year-over-year price declines, which is helpful if you are shopping used and want more SUV for the money. The steepest drops are concentrated in the newer years, while the older examples are changing more slowly. That pattern gives you a wider spread of value opportunities across the lineup.

The 2018, 2020, and 2025 model years have held their value best, with the smallest year-over-year price changes.

Is the Mercedes-Benz GLS safe?

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

Mercedes-Benz ADAS comes standard on the 2024 GLS, including forward-collision warning, lane-departure warning, lane-keeping assist, adaptive cruise control, and lane-centring 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 2025 model is at −15.07% versus a year ago, and the 2024 model is at −22.87%.
• Deal availability: The 2025 model has 27.5% good and great deals, and the 2024 model has 38.2%.
• Sweet-spot year: The 2025 model has the most listings at a current average price of $119,370 CAD. The Mercedes-Benz GLS offers a spacious, luxury-focused cabin that makes it especially appealing for families who want three-row comfort.

Consider waiting if:

• Powertrain/efficiency: The GLS 450 provides 375 horsepower, 369 pound-feet of torque, and an official fuel economy rating of 11.3 litres per 100 kilometres in combined driving.
• Tech: MBUX brings a 12.3-inch digital instrumentation panel, a 12.3-inch infotainment touchscreen, intuitive touchscreen operation, outstanding natural voice recognition technology, and augmented reality for the navigation system.
• Safety: The latest model adds or improves advanced driving assistance systems that can be adjusted through MBUX, including forward-collision warning, lane-departure warning, lane-keeping assist, adaptive cruise control, and lane-centring assist.
• Starting price: In Canada, the GLS 450 starts at $116,100 CAD.

If you're buying used today, the 2025 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 September 15, 2026, CarGurus experts' opinions, and generative AI.