Mercedes-AMG GLS63 Second Generation Buyers Guide

When the 2nd Generation Mercedes-AMG GLS63 was introduced for the 2017 model year, it represented the pinnacle of full size high-performance luxury SUVs. Building on the foundation of the first-generation GL63, Mercedes-AMG transformed the newly renamed GLS-Class into an aggressive offering, setting new benchmarks for performance in the full-size SUV segment. 

At the heart of the AMG GLS63 lies a 5.5-liter twin-turbocharged V8 engine, producing an impressive 577 hp and 561 lb-ft of torque. This powerhouse is paired with AMG’s Speedshift 7G-Tronic automatic transmission and 4MATIC all-wheel-drive system, enabling the GLS63 to sprint from 0 to 60 mph in just 4.5 seconds—an impressive feat for a three-row luxury SUV weighing over 5,700 pounds. The exhaust note also delivers a deep, unmistakable AMG growl.

The exterior design of the GLS63 reflects AMG’s DN. Key visual elements include an aggressive AMG-specific front grille, larger air intakes, and a sculpted front bumper that enhances both cooling and aerodynamics. Flared wheel arches house 21-inch AMG alloy wheels (with optional 22-inch variants), while quad exhaust outlets and subtle AMG badging complete the high-performance look.

There have been reports of the heating, ventilation, and air conditioning (HVAC) system not performing optimally, leading to discomfort for occupants. Issues include inadequate cooling or heating and problems with airflow distribution.

Inside, the cabin of the AMG GLS63 is a blend of performance-focused elements and first-class luxury. AMG-exclusive touches include Nappa leather upholstery, an AMG performance steering wheel, and carbon-fiber or wood trim options. The spacious interior offers seating for seven, with heated and ventilated seats for ultimate comfort.

The updated COMAND infotainment system features an 8-inch high-resolution display, navigation, and a premium Harman Kardon or optional Bang & Olufsen sound system. Attention to detail is evident throughout the cabin, with high-quality materials and meticulous craftsmanship.

Throughout its production, the 2nd Generation Mercedes-AMG GLS63 faced competition from several luxury performance SUVs, including the BMW X5 M, Porsche Cayenne Turbo, and Range Rover Sport SVR.

Despite fierce competition, the GLS63 stood out with its blend of AMG power, spacious three-row practicality, and refined luxury, appealing to enthusiasts who desired an SUV that could deliver both family comfort and performance.

Model Changes (Breakdown by Year)

2017 Mercedes-AMG GLS63

For the 2017 model year, the Mercedes-AMG GLS63 debuted as part of the newly renamed GLS-Class lineup, marking a fresh start for Mercedes-Benz’s flagship SUV. Under the hood, it retained the powerful 5.5-liter twin-turbocharged V8, producing 577 hp and 561 lb-ft of torque, paired with the AMG Speedshift 7-speed automatic transmission.

Visually, the GLS63 received updates to its exterior, including a new AMG-specific grille, redesigned bumpers, and modern LED headlights and taillights. Standard 21-inch AMG alloy wheels completed the aggressive look, with optional 22-inch wheels available.

Inside, the cabin saw updates with an improved COMAND infotainment system featuring an 8-inch display, along with standard Apple CarPlay and Android Auto. High-quality Nappa leather upholstery and a new AMG-specific steering wheel further refined the interior.

The GLS63 also benefited from AMG Ride Control air suspension with active dampening for improved handling and ride comfort, while new driver-assistance features like Collision Prevention Assist Plus and Attention Assist came standard. 

In 2017, the Mercedes-AMG GLS63 had a starting price of approximately $124,100.

2018 Mercedes-AMG GLS63

For the 2018 model year, the Mercedes-AMG GLS63 received several updates. One of the key improvements was the addition of Active LED headlights as standard equipment, offering improved illumination and visibility. To further enhance nighttime driving, Adaptive Highbeam Assist was also introduced, automatically adjusting the high beams to avoid dazzling other drivers.

The infotainment system saw notable improvements as well. The COMAND system received a software update, resulting in better responsiveness and smoother operation. The graphics for the infotainment display were also enhanced, providing a more modern and visually appealing interface.

On the exterior, the GLS63 saw minor updates to its styling with the introduction of new color options, including shades like Designo Cardinal Red Metallic. For buyers seeking a more aggressive look, Mercedes introduced the optional Night Package, which added gloss black accents to the grille, window trim, and mirrors, giving the SUV a sportier and more distinctive appearance.

Subtle refinements were made to the AMG Ride Control suspension. These adjustments improved ride quality, ensuring a more comfortable and composed driving experience.

Inside the cabin, Mercedes expanded customization options with new trim choices, including open-pore wood and carbon fiber finishes. Additionally, an optional rear-seat entertainment package was introduced, featuring dual displays for second-row passengers.

2019 Mercedes-AMG GLS63

For the 2019 model year, Mercedes-AMG introduced a Final Edition package to mark the end of the second-generation GLS63. This limited-edition offering featured unique touches, including special badging and a limited-production plaque.

The interior received bespoke Designo finishes, highlighted by black Nappa leather with contrast stitching for a refined and elegant appearance. Completing the package was 22-inch AMG forged wheels finished in matte black.

The 2019 GLS63 also saw upgrades to its technology, with the COMAND infotainment system gaining improved voice control and enhanced navigation capabilities. The integration of Live Traffic Information provided real-time updates, ensuring a more connected and seamless driving experience.

Driver assistance features became more comprehensive, with additional optional systems such as 360-degree cameras and Active Parking Assist becoming widely available. These enhancements provided greater convenience and confidence, especially in urban and tight parking scenarios.

On the exterior, minor updates to the color palette included new Designo options, allowing buyers to further personalize their SUV. The AMG Night Package remained an option, continuing to add gloss black accents for a sportier and more aggressive appearance.

With its Final Edition and subtle refinements, the 2019 GLS63 brought the second generation to a close.

In 2019, the Mercedes-AMG GLS63 had a starting price of approximately $126,150.

Mercedes-AMG GLS63 Second Generation Common Problems

While the second-generation Mercedes-AMG GLS63 (2017–2019) is known for its power, and commanding road presence, it is not without its faults. Owners have reported a handful of common issues that can arise over time. These problems, while not universal, are worth noting for potential buyers and current owners to ensure proper maintenance and timely repairs. Below are some of the most commonly reported concerns.

Keep in mind, that it is essential that all cars, even supercars, can have issues and it is crucial to perform a Pre-Purchase Inspection (PPI) from an authorized dealer or experienced independent mechanic to reveal all issues.

Air Suspension Concerns: The AIRMATIC air suspension system, designed for a smooth ride, has been known to experience failures. Components such as air struts or the air compressor may malfunction, leading to a sagging suspension or a noticeably harsher ride. Repairs can be costly, especially if multiple components are affected.

Electrical System Issues: Some owners have reported problems with the vehicle’s electrical systems, including malfunctioning sensors, issues with the infotainment system, and occasional battery drain. These electronic gremlins can lead to warning lights on the dashboard and may require diagnostic work to identify and resolve.

Oil Leaks: As the GLS63 ages, there have been instances of oil leaks, particularly from the engine area. These leaks can lead to reduced engine performance and, if left unaddressed, potential engine damage. Regular maintenance and inspections are crucial to detect and repair leaks early.

Interior Component Wear: Despite its luxury status, some owners have noted that certain interior components, such as plastic trims, may show signs of wear or become defective over time. This can detract from the overall premium feel of the vehicle’s cabin.

HVAC System Inefficiencies: There have been reports of the heating, ventilation, and air conditioning (HVAC) system not performing optimally, leading to discomfort for occupants. Issues include inadequate cooling or heating and problems with airflow distribution.

Recalls

The Mercedes-AMG GLS63, despite some common issues reported by owners, has not been subject to any major recalls that specifically impacted the majority of vehicles in its production run from 2017 to 2019.

Mercedes-AMG has addressed most concerns through regular maintenance updates and individual repairs under warranty. Issues such as air suspension failures, electrical glitches, and brake wear have largely been resolved on a case-by-case basis through technical service bulletins and warranty support, rather than widespread recall campaigns. 

Maintenance and Ownership Costs

Compared to other high-performance luxury SUVs, owning a Mercedes-AMG GLS63 is associated with higher maintenance and ownership costs due to its premium components.

However, it is important to remember that regular maintenance and repairs will still be necessary, and the costs can vary depending on whether you take your car to a dealer or an independent mechanic.

Here are the suggested service schedules and intervals per Mercedes:

10,000 MILES (Service A)

• Engine oil replacement

• Oil filter replacement

• Fluid checks and refill (as needed)

• Brake inspection

• Tire pressure check and adjustment

• Reset maintenance counter

20,000 MILES (Service B)

• Cabin air filter replacement

• Brake fluid flush and replacement

• Engine oil replacement

• Oil filter replacement

• Fluid checks and refill (as needed)

• Brake inspection

• Tire pressure check and adjustment

• Reset maintenance counter

30,000 MILES (Service A)

• Engine oil replacement

• Oil filter replacement

• Fluid checks and refill (as needed)

• Brake inspection

• Tire pressure check and adjustment

• Reset maintenance counter

40,000 MILES (Service B)

• Cabin air filter replacement

• Brake fluid flush and replacement

• Engine oil replacement

• Oil filter replacement

• Fluid checks and refill (as needed)

• Brake inspection

• Tire pressure check and adjustment

• Reset maintenance counter

50,000 MILES (Service A + Additional Items)

• Spark plug inspection and replacement

• Engine air filter replacement

• Fuel filter replacement

• Engine oil replacement

• Oil filter replacement

• Fluid checks and refill (as needed)

• Brake inspection

• Tire pressure check and adjustment

• Reset maintenance counter

60,000 MILES (Service B + Additional Items)

• Transmission fluid flush and replacement

• Transmission filter replacement

• Cabin air filter replacement

• Brake fluid flush and replacement

• Engine oil replacement

• Oil filter replacement

• Fluid checks and refill (as needed)

• Brake inspection

• Tire pressure check and adjustment

• Reset maintenance counter

Here is a rough estimate of typical service costs associated with the Mercedes-AMG GLS63:

• Oil Change – An oil change typically costs between $250 and $300 at a dealership, including the oil, filter, and labor. Independent shops can perform the same service for approximately $150 to $200, depending on location and parts used.

• Minor Service – Minor services, including oil changes, fluid top-offs, and basic inspections, are usually recommended every 10,000 miles. The cost for a minor service generally ranges from $300 to $500. Independent mechanics may provide more competitive pricing, whereas dealerships might charge a premium for their specialized expertise and use of OEM parts.

• Major Service – Major services involve comprehensive inspections, spark plug replacements, brake fluid changes, and other preventive maintenance tasks, typically recommended every 30,000 to 50,000 miles. The cost for major service usually falls between $1,200 and $1,800. Independent repair shops may offer lower prices, but dealerships provide the advantage of technicians trained specifically on Mercedes-AMG vehicles.

• Tires – A set of four Michelin Pilot Sport 4 SUV tires generally costs between $1,500 and $2,500, depending on the brand and specifications. Independent tire retailers might offer competitive pricing and promotions, while dealerships may charge more but provide the assurance of manufacturer-approved tire options.

• Transmission – The Mercedes-AMG GLS63 is equipped with an automatic transmission. Maintenance for the transmission, such as fluid changes, may be necessary as the vehicle ages, but costs will vary.

Options List

When considering the Mercedes-AMG GLS63 (2017–2019), the options list plays a significant role. 

The AMG Night Package is a standout option for buyers seeking a more aggressive and sporty appearance. This package adds gloss black accents to the grille, window trim, and mirrors, creating a bolder aesthetic.

For the interior, the Designo Exclusive Nappa Leather Package finishes the cabin with premium materials and bespoke finishes. This option includes soft-touch leather upholstery with intricate stitching and unique color combinations that exude elegance. Paired with available open-pore wood or carbon fiber trims.

Performance enthusiasts may appreciate the addition of 22-inch AMG forged wheels, which not only enhance the SUV’s sporty appearance but also improve handling dynamics thanks to their lightweight construction.

The optional rear-seat entertainment system provides dual screens for second-row passengers, offering entertainment on long trips or during daily commutes.

Technology-focused buyers may opt for advanced driver-assistance packages, including Active Parking Assist and a 360-degree camera system, which simplify urban driving and parking.

Customization options through the Designo program allow for unique finishes and tailor-made features not available in the standard range. These options ensure that each Mercedes-AMG GLS63 can be uniquely tailored to its owner’s specific tastes and needs.

2017 Mercedes-AMG GLS63 Options List

2018 Mercedes-AMG GLS63 Options List

Key Options

• AMG Night Package

• Designo Exclusive Nappa Leather Package

• 22-Inch AMG Forged Wheels

• Rear-Seat Entertainment System

• Carbon Fiber Interior Trim

• Driver Assistance Package

Mercedes-AMG GLS63 Second Generation Price and Values (Includes regular GLS models)

The Best Mercedes-AMG GLS63 Second Generation to Buy

When it comes to choosing the best Mercedes-AMG GLS63 (2017–2019), there are several key factors to consider.

For buyers seeking the most refined version of this generation, the 2019 model year stands out as the best choice. As the final production year for the second-generation GLS63, the 2019 model benefits from all the incremental updates introduced throughout its lifecycle. 

This includes improved infotainment functionality with better voice control, the integration of Live Traffic Information, and the availability of additional driver assistance features, such as the optional 360-degree camera system and Active Parking Assist. 

The 2019 model also offered the exclusive Final Edition Package, which added unique Designo Nappa leather finishes, special badging, and standard 22-inch AMG forged wheels, enhancing both its luxury and exclusivity.

In terms of market stability, any second generation GLS63 from 2017 to 2017 is a safe choice for hacking.

In addition to selecting the right model year, the condition and mileage of the vehicle are critical factors. A well-maintained GLS63 with low mileage is likely to retain its value better and offer a more reliable ownership experience. Full-service history and proper maintenance records are essential indicators of the vehicle’s care and condition, so thorough research and inspection are highly recommended.

Conclusion

In summary, with a starting price of around $50,000 to $75,000, the second-generation Mercedes-AMG GLS63 (2017–2019) is an exceptional choice for those seeking a high-performance luxury SUV. It delivers a unique combination of power, size, and versatility, setting itself apart in the competitive luxury SUV segment.

While alternatives like the BMW X5 M, Porsche Cayenne Turbo, and Range Rover SVR offer their own strengths, the GLS63 stands out with its commanding 5.5-liter twin-turbo V8 engine, aggressive AMG styling, and spacious, high-quality interior that can accommodate up to seven passengers in comfort.

For buyers seeking a blend of performance, luxury, and practicality, the Mercedes-AMG GLS63 is an excellent choice. Its ability to combine thrilling driving dynamics with everyday usability makes it a standout option for those who demand the best of both worlds.