The 2021 Mercedes-Benz GLS-Class represents the pinnacle of luxury SUVs from a brand renowned for its opulent vehicles. As a three-row, full-size SUV, the GLS-Class competes with the likes of the BMW X7 and Cadillac Escalade. The model year 2021 is part of the third generation (X167), introduced in 2020. Key trims include the GLS 450, GLS 580, and the high-performance AMG GLS 63. The pricing ranged approximately from $77,000 to $135,000 when new. It stands out for its refined interior, advanced technology, and comfortable ride.
The Good
The 2021 GLS-Class offers a blend of powerful performance and exceptional comfort, appealing to both emotional and practical buyers. Its luxurious design and advanced technology provide a premium feel. The spacious interior and smooth ride enhance comfort for all passengers. While not the most fuel-efficient, the GLS provides a respectable balance for its size and power. It delivers a prestigious driving experience that makes it a desirable SUV.
The Bad
Potential weaknesses of the 2021 GLS-Class include higher maintenance costs typical of luxury vehicles. The complex technology, while impressive, can be prone to glitches. Some owners have reported issues with the air suspension system. Fuel economy, while adequate, isn't exceptional. Finally, the initial cost of entry is considerable, making it inaccessible to some buyers. Prospective buyers should be aware of these potential drawbacks.
2021 Mercedes-Benz GLS-Class: Quick Overview
Here's a bullet-point summary of key specifications for the 2021 Mercedes-Benz GLS-Class:
- Engine Options:
- GLS 450: 3.0-liter inline-6 turbo with EQ Boost
- GLS 580: 4.0-liter V8 biturbo with EQ Boost
- AMG GLS 63: AMG-enhanced 4.0-liter V8 biturbo with EQ Boost
- Horsepower:
- GLS 450: 362 hp
- GLS 580: 483 hp
- AMG GLS 63: 603 hp
- Fuel Economy (EPA Estimated): (Figures may vary based on real-world conditions)
- GLS 450: 20 mpg city / 24 mpg highway
- GLS 580: 16 mpg city / 21 mpg highway
- AMG GLS 63: 15 mpg city / 19 mpg highway
- 0-60 Times: (Estimates)
- GLS 450: 5.9 seconds
- GLS 580: 5.2 seconds
- AMG GLS 63: 3.8 seconds
- Towing Capacity: Up to 7,700 lbs (with proper equipment)
- Trim-Level Features:
- GLS 450: MBUX infotainment system, 12.3-inch digital instrument cluster, 12.3-inch touchscreen display, Apple CarPlay, Android Auto, heated front seats, panoramic sunroof, adaptive air suspension.
- GLS 580: Adds leather upholstery, massaging front seats, soft-close doors, illuminated running boards, upgraded sound system.
- AMG GLS 63: Adds AMG-specific styling, performance enhancements, AMG Ride Control+ air suspension, AMG high-performance braking system, AMG performance exhaust system.
2021 Mercedes-Benz GLS-Class Specifications
Vehicle Information
| Year | 2021 |
| Make | Mercedes-Benz |
| Model | GLS-Class |
| Trim | - |
| Style | SUV |
| Type | Sport Utility Vehicle |
| Category | Standard Sport Utility Vehicle |
Manufacturing Details
| Made In | United States |
| Manufacturing City | VANCE |
Dimensions
| Doors | 4-Door |
| Curb Weight | 2609.97 kg |
| Gross Vehicle Weight Rating | 3628.74 kg |
| Overall Height | 182.37 cm |
| Overall Length | 521.21 cm |
| Overall Width | 202.95 cm |
| Wheelbase Length | 313.44 cm |
| Standard Seating | 7 |
Engine & Performance
| Engine | V-6 |
| Engine Size | 3L |
| Engine Cylinders | 6 |
| Transmission | Automatic |
| Transmission Type | Automatic |
| Transmission Speeds | 9-Speed |
| Drivetrain | All-Wheel Drive |
Additional Features
| Anti-Brake System | 4-Wheel ABS |
| Steering Type | Rack & Pinion |
Pricing
| Manufacturer Suggested Retail Price (MSRP) | $99,900 USD |
| Invoice Price | - |
| Delivery Charges | $1,050 USD |
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What Problems Does the 2021 Mercedes-Benz GLS-Class Have?
Frequently reported problems for the 2021 Mercedes-Benz GLS-Class, and Mercedes-Benz vehicles in general, often revolve around the complex electronic systems. Issues with the MBUX infotainment system, including glitches, software malfunctions, and connectivity problems, have been reported by some owners. The air suspension system, while providing a smooth ride, can also be a source of concern due to potential leaks or compressor failures, requiring expensive repairs. Some owners have also reported issues with sensors and driver-assistance features malfunctioning.
While the 2021 model year itself may not have had a high number of specific recalls compared to other vehicles, it's important to check the NHTSA (National Highway Traffic Safety Administration) website for any updates or recalls related to safety or performance. Long-term reliability concerns tend to focus on the potential for increased maintenance costs as the vehicle ages, especially regarding the aforementioned electronic and suspension components. Proper and timely maintenance, adhering to the manufacturer's recommended service schedule, can help mitigate some of these risks. Some model years of Mercedes-Benz vehicles have faced complaints about premature wear of certain components, so reviewing owner forums and reliability data can provide additional insights into potential long-term issues specific to the GLS-Class.
While the 2021 model year itself may not have had a high number of specific recalls compared to other vehicles, it's important to check the NHTSA (National Highway Traffic Safety Administration) website for any updates or recalls related to safety or performance. Long-term reliability concerns tend to focus on the potential for increased maintenance costs as the vehicle ages, especially regarding the aforementioned electronic and suspension components. Proper and timely maintenance, adhering to the manufacturer's recommended service schedule, can help mitigate some of these risks. Some model years of Mercedes-Benz vehicles have faced complaints about premature wear of certain components, so reviewing owner forums and reliability data can provide additional insights into potential long-term issues specific to the GLS-Class.
How long will the 2021 Mercedes-Benz GLS-Class last?
Based on owner data and typical maintenance habits, a 2021 Mercedes-Benz GLS-Class can reasonably be expected to provide 150,000 to 200,000 miles of service, potentially lasting 10-15 years with diligent care. Long-term durability is generally good, but as with many luxury vehicles, the complexity of the systems can introduce weaknesses over time. Expect potential issues with the air suspension, electronics (especially the MBUX system), and various sensors as the vehicle ages. Regular maintenance, including fluid changes and inspections, is crucial to maximizing lifespan and minimizing costly repairs. Addressing minor issues promptly can prevent them from escalating into major problems.
What Technology & Safety Features are Included?
The 2021 Mercedes-Benz GLS-Class boasts an impressive array of built-in tech, entertainment, driver-assistance, and safety features. The centerpiece is the MBUX (Mercedes-Benz User Experience) infotainment system, featuring a 12.3-inch touchscreen display and a 12.3-inch digital instrument cluster. It supports Apple CarPlay and Android Auto integration. Entertainment features include a premium sound system (Burmester optional), multiple USB ports, and available rear-seat entertainment screens.
Standard driver-assistance features include active brake assist, blind-spot assist, lane-keeping assist, attention assist, and adaptive cruise control. Optional features include active lane-change assist, active steering assist, and route-based speed adaptation. These systems enhance safety and convenience during both city and highway driving. Safety features include multiple airbags, electronic stability control, and anti-lock brakes.
Crash-test ratings from the IIHS (Insurance Institute for Highway Safety) and NHTSA provide insights into the vehicle's performance in simulated collisions. While specific ratings for the 2021 model year should be verified on their respective websites, the GLS-Class generally performs well in crash tests, reflecting its robust safety design and engineering.
Standard driver-assistance features include active brake assist, blind-spot assist, lane-keeping assist, attention assist, and adaptive cruise control. Optional features include active lane-change assist, active steering assist, and route-based speed adaptation. These systems enhance safety and convenience during both city and highway driving. Safety features include multiple airbags, electronic stability control, and anti-lock brakes.
Crash-test ratings from the IIHS (Insurance Institute for Highway Safety) and NHTSA provide insights into the vehicle's performance in simulated collisions. While specific ratings for the 2021 model year should be verified on their respective websites, the GLS-Class generally performs well in crash tests, reflecting its robust safety design and engineering.
What Colors Options are Available?
Exterior Colors
Black
Obsidian Black Metallic
Polar White
Iridium Silver Metallic
Sodalite Blue Metallic
Emerald Green Metallic
Selenite Grey Metallic
designo Diamond White Metallic
designo Cardinal Red Metallic
Twilight Blue Metallic
Interior Colors
Macchiato Beige/Espresso Brown Leather
Black Leather
Espresso Brown Leather
Black MB-Tex
Espresso Brown MB-Tex
Macchiato Beige/Black MB-Tex
Classic Red/Black Leather
Truffle Brown Leather
designo Black Nappa Leather
designo Macchiato Beige/Espresso Brown Nappa Leather
2021 Mercedes-Benz GLS-Class Prices and Market Value
The 2021 Mercedes-Benz GLS-Class had a starting MSRP of around $77,000 for the GLS 450, while the GLS 580 started closer to $100,000, and the AMG GLS 63 exceeded $130,000. Current used market prices vary depending on mileage, condition, and trim, but expect to find GLS 450 models in the $55,000-$70,000 range, and higher trims proportionally more. Depreciation is significant in the first few years, typical for luxury SUVs. Factors affecting resale value include mileage, condition, service history, and options. Maintaining the vehicle well and keeping a clean title will maximize its resale potential. Low mileage examples with desirable options packages command higher prices.
2021 Mercedes-Benz GLS-Class Cost of Ownership
The 2021 Mercedes-Benz GLS-Class is a costly vehicle to own long-term. Insurance premiums are high due to its value and repair costs. Fuel economy is mediocre, contributing to higher running costs. Maintenance and repair costs are also substantial, particularly for specialized components like the air suspension. Regular servicing at a qualified Mercedes-Benz mechanic is essential. While not economical, the GLS-Class provides a luxurious experience that some buyers are willing to pay for. Budgeting for potential repairs is crucial.
2021 Mercedes-Benz GLS-Class Fuel Efficiency
Fuel Type
Gasoline
Fuel Capacity
41.26 liters
City Mileage
5.02 km/l
Highway Mileage
4.17 km/l
2021 Mercedes-Benz GLS-Class Safety Rating
NHTSA
2021 Mercedes-Benz GLS-Class Warranty
Basic
Original warranty
48 months / 50,000 miles
Estimated remaining
Expired
Powertrain
Original warranty
48 months / 50,000 miles
Estimated remaining
Expired
Rust
Original warranty
48 months / 50,000 miles
Estimated remaining
Expired
2021 Mercedes-Benz GLS-Class Insurance
Insurance for a 2021 Mercedes-Benz GLS-Class is moderately priced, reflecting its status as a Sport Utility Vehicle with strong safety ratings and
reasonable repair costs.
reasonable repair costs.
How Does the 2021 Mercedes-Benz GLS-Class Compare to Other Sport Utility Vehicle?
The 2021 Mercedes-Benz GLS-Class competes with the BMW X7, Cadillac Escalade, Range Rover, and Lincoln Navigator. In terms of performance, the GLS and X7 offer similar levels of power and handling, while the Escalade provides a more traditional American SUV driving experience. The Range Rover focuses on off-road capability. Features-wise, the GLS excels with its MBUX system, while the Escalade boasts impressive screen technology. Reliability is an area where the BMW X7 may have a slight edge over the GLS, although both require careful maintenance. The Cadillac Escalade offers similar features and is built on a pickup truck chassis, known for its long term durability. The Range Rover has luxurious features as well but can have issues with reliability.
Price-wise, the GLS is generally comparable to the X7 and Range Rover, but the Escalade can offer more value for money. Alternatives to the GLS depend on your priorities. If reliability is paramount, the BMW X7 is comparable. If you need immense space and towing capacity and want to buy American, consider the Cadillac Escalade. If off-road capability is important, the Range Rover is a strong contender. The Lincoln Navigator provides similar levels of comfort and features at a lower price point.
Price-wise, the GLS is generally comparable to the X7 and Range Rover, but the Escalade can offer more value for money. Alternatives to the GLS depend on your priorities. If reliability is paramount, the BMW X7 is comparable. If you need immense space and towing capacity and want to buy American, consider the Cadillac Escalade. If off-road capability is important, the Range Rover is a strong contender. The Lincoln Navigator provides similar levels of comfort and features at a lower price point.
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| 3 | 2023 Lexus GX | (0.0★) |
| 4 | 2024 Mazda CX-90 PHEV | (0.0★) |
| 5 | 2024 Subaru Crosstrek | (5.0★) |
| 6 | 2024 BMW iX | (0.0★) |
| 7 | 2023 Ford Bronco Sport | (5.0★) |
| 8 | 2023 Mercedes-Benz EQB | (0.0★) |
| 9 | 2024 Chevrolet Trax | (5.0★) |
| 10 | 2023 Audi A4 allroad | (0.0★) |
| 11 | 2023 Hyundai Kona N | (0.0★) |
| 12 | 2023 Nissan ARIYA | (5.0★) |
| 516 | 2021 Mercedes-Benz GLS-Class | (0.0★) |
Final Verdict: Is the 2021 Mercedes-Benz GLS-Class a Good Sport Utility Vehicle?
The 2021 Mercedes-Benz GLS-Class is ideal for buyers seeking a luxurious, comfortable, and technologically advanced three-row SUV. It's well-suited for families who prioritize a premium driving experience and ample passenger space. Whether it's worth buying depends on your budget and priorities. A used model can offer significant savings, but be prepared for potentially higher maintenance costs. The GLS 450 offers a good balance of performance and value. Thoroughly inspect any used GLS and obtain a pre-purchase inspection from a trusted mechanic. If budget allows, a newer model with an extended warranty can provide added peace of mind. Overall, the GLS-Class offers a rewarding ownership experience for those who appreciate luxury and advanced technology.
Jovan
Jovan specializes in interpreting vehicle records and making sense of VIN data. With over 10 years of experience in the automotive data industry, his work ensures that every report is clear, accurate, and useful for car buyers.