Mercedes Benz GLS Class
Used Car Review

Mercedes benz Gls-class

For Sale Online with Finance

Nick Zapolski

ChooseMyCar founder, ex-racing driver, and motoring expert

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A former British Touring Car support racer, Nick is the founder of ChooseMyCar and brings years of industry insight to the world of cars and car buying.

Overall Rating

4.4/5

Based on expert evaluation and real-world testing

Performance

4.2

Comfort & Interior

4.8

Running Costs

3.2

Practicality

4.5

Expert Review

Our ratings are based on thorough testing and expert evaluation. We consider all aspects of the vehicle, from performance to value for money, ensuring you get a transparent and reliable assessment.

Mercedes benz Gls-class

Overview

Looking for a luxury SUV that makes a serious statement? The Mercedes Benz GLS Class delivers commanding presence with uncompromising comfort for up to seven passengers. This flagship SUV combines Mercedes’ renowned build quality with impressive space and advanced technology. The GLS excels at effortless long distance cruising while offering genuine off road capability when needed. Whether you’re transporting family or entertaining clients, the GLS provides a premium experience that rivals like the BMW X5 or Range Rover Sport struggle to match. The interior feels like a luxury lounge with premium materials throughout and cutting edge infotainment systems. While running costs reflect its premium positioning, the GLS offers exceptional refinement and versatility. For those seeking the ultimate in luxury SUV motoring, the GLS Class represents Mercedes at its most accomplished. This is a vehicle that delivers on both practicality and prestige in equal measure.

Mercedes benz Gls-class

What's the Mercedes Benz GLS Class Like to Drive?

The Mercedes Benz GLS Class offers a range of potent engines that prioritise refinement over outright sportiness. The entry level GLS 350d diesel produces around 286 horsepower and delivers impressive torque for effortless overtaking and towing. For those wanting more power, the GLS 450 petrol engine offers 367 horsepower with silky smooth acceleration. The range topping AMG models push performance into supercar territory while maintaining the comfort expected from a luxury SUV.

Key Features

Essential specifications and features

  • Engine

    3.0L V6 Diesel / 3.0L V6 Petrol / 4.0L V8 Petrol

  • Power Output

    286 - 630 bhp

  • 0-60 mph

    7.8 - 3.8 seconds

  • MPG Combined

    28 - 35 mpg

Boot Space
355 - 2400 litres
Safety Rating
★★★★★ (Euro NCAP)

Inside the Mercedes Benz GLS Class: Comfort & Features

Step inside the GLS and you’re immediately struck by the sheer quality of everything around you. The dashboard design is modern and sophisticated, dominated by the latest MBUX infotainment system with its crisp dual screen setup. Materials throughout feel genuinely premium, from the soft leather upholstery to the real wood trim and brushed metal accents. Every control operates with the precision you’d expect from Mercedes, creating an atmosphere of uncompromising luxury.

The Mercedes Benz GLS Class excels in comfort and interior quality, offering a plush, tech-laden cabin that sets a high bar for luxury SUVs. Its refined engines deliver smooth power, though outright performance isn’t its forte. The AMG variants punch above their weight, blending sportiness with comfort. Practicality shines with ample space, but running costs are steep. A commanding presence on and off-road, it’s a premium cruiser with occasional compromises in efficiency
Nicholas Zapolski Car Expert
Mercedes benz Gls-class

How Much Does It Cost to Run a Mercedes Benz GLS Class?

As you’d expect from a large luxury SUV, the GLS comes with substantial running costs that reflect its premium positioning. Fuel economy varies significantly depending on your chosen engine, with diesel versions achieving around 32-35 mpg in real world driving, while the powerful AMG variants can see consumption drop into the low twenties. Insurance costs are high due to the car’s value and repair costs, so it’s worth shopping around for competitive quotes.

How Does It Compare?

Compare key features and specifications

Mercedes GLS
BMW X7
Audi Q7
Starting Price £73,000 £75,000 £70,000
Performance
Engine 3.0L V6 286hp 3.0L V6 340hp 3.0L V6 286hp
Power 286 bhp 340 bhp 286 bhp
0-60 mph 7.8 seconds 6.1 seconds 7.1 seconds
Running Costs
MPG Combined 32 mpg 30 mpg 34 mpg
Practicality
Boot Space 355 litres 326 litres 295 litres
Standard Features
Key Features Air suspension, MBUX system, Luxurious interior Sporty handling, Premium materials, Advanced tech Quattro AWD, Virtual cockpit, Efficient engines
Mercedes benz Gls-class

Mercedes Benz GLS Class Practicality & Boot Space

For such a luxurious vehicle, the GLS is remarkably practical for everyday use. The boot offers 355 litres with all seven seats in place, which expands to a massive 2,400 litres with the rear seats folded flat. This makes it ideal for large families who need to carry everything from shopping to holiday luggage. The split folding seats and electric operation make reconfiguring the space simple and convenient.

Absolutely love our GLS 450. The comfort levels are incredible and it swallows our family of six with ease. Yes it’s expensive to run but the quality and luxury make it worthwhile. Best car we’ve ever owned.
James Mitchell Mercedes Benz Gls Class Customer
Verified Purchase

The Mercedes Benz GLS Class represents luxury motoring at its finest, wrapping exceptional comfort, advanced technology, and genuine seven seat practicality into one impressive package. It successfully delivers on Mercedes’ promise of creating the S Class of SUVs, with build quality and attention to detail that justifies its premium positioning. Every aspect feels carefully considered to enhance the ownership experience.

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Frequently Asked Questions

Yes, the modern GLS Class has proven reliable for daily use. Mercedes has significantly improved build quality in recent years, and owners report good dependability. Like any complex luxury vehicle, regular servicing is crucial to maintain reliability. The diesel engines are particularly robust for high mileage driving. Most issues are electronic rather than mechanical, and Mercedes warranty coverage provides peace of mind for newer models.

Focus on service history first, as regular maintenance is vital for reliability. Check all electronic systems including the air suspension, which can be expensive to repair. Look for signs of off road use if buying from rural areas. Inspect leather seats for wear and ensure all massage and adjustment functions work properly. Diesel models should show evidence of regular longer journeys to prevent DPF issues.

The GLS prioritises comfort and luxury over sporty driving, while the X7 offers more engaging handling. The Mercedes has a slightly more spacious interior and better ride quality thanks to its standard air suspension. Both offer similar levels of luxury and technology. The GLS feels more traditional and stately, whereas the X7 has a more modern, tech focused approach to luxury motoring.

Yes, the GLS Class offers one of the most spacious third rows in its class. Adults can comfortably travel in the back seats for reasonable distances, not just children. Access is good thanks to the sliding second row seats. Headroom and legroom are genuinely adequate for most adults. This sets it apart from many competitors where the third row feels like an emergency measure rather than proper seating.

Expect fuel costs of £200-300 monthly for average mileage, depending on your driving style and engine choice. Insurance can be £1,500-3,000 annually depending on your circumstances. Servicing costs around £600-800 per service at main dealers. Factor in higher tyre costs due to the large wheel sizes. The diesel engines generally offer better fuel economy but require regular longer runs to maintain the emissions system properly.