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Mercedes-Benz GLS
SUV · Gas · 15 versions · owner report
Ranked #4 of 10 luxury full-size SUVs on owner data, price and fuel economy
Every generation
Power
0–62 mph (0–100 km/h)
Top speed (250 km/h)
Combined, EPA 2027
What owners say
Our take, from owner reports
Sentiment is sharply divided and heavily dependent on ownership phase and powertrain.
8 problems reported (3 very frequent, 3 recurrent, 2 isolated) · high confidence
Problems owners report
- Very frequentExorbitant maintenance and repair costs
Very frequent reports of routine dealer service visits costing $1,800-$2,200, with major repairs like air suspension or differential failure costing $5,000-$30,000.
- Very frequentAir suspension failures
Described as a "common" point of failure leading to very expensive repairs ($2,250 minimum, often $5,000+).
- Very frequentPremature tire and brake wear
Rear tires last 15,000-20,000 miles; brake pads require frequent replacement; cited as an almost annual expense.
+ 5 more issuesShow fewer
- RecurrentEngine oil consumption
Noted as "normal" at higher mileage, requiring topping off between services.
- RecurrentCoolant leaks
Mentioned as a recurring problem area.
- RecurrentElectrical/electronic issues
Mentions of melting engine wire harnesses, infotainment problems, and power liftgate sensor failures.
- Isolated48-volt mild hybrid system issues
Noted as a potential concern, though some state early problems have been addressed.
- IsolatedInterior build quality concerns
Isolated report of interior rattles and "cracks," and leather that may not last long.
The version owners recommend
Insufficient owner data available to declare a single "best" version. Feedback is split by priorities: the GLS 450 is noted for being the entry point with a sacrifice in power. The GLS 550/580 models are highly praised for their powerful, smooth V8 performance and aggressive styling, offering an "AMG feel without the badge." The GLS 63 AMG is recognized for its extreme performance while still maintaining good ride quality, especially with its comfortable seats. The overriding recommendation is not for a specific trim, but for any version purchased with a strong Certified Pre-Owned (CPO) or factory warranty due to ubiquitous cost concerns.
Competitors to consider
Owners compare it most often with the BMW X7, Lexus GX, Lexus LX, Cadillac Escalade and Range Rover.
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Overall sentiment
Sentiment is sharply divided and heavily dependent on ownership phase and powertrain. The vehicle is universally praised for its core attributes: exceptional ride comfort, often described as "like a magic carpet," spacious and comfortable third-row seating, a luxurious and well-appointed interior, and strong, smooth V8 performance in 550/580/63 models. However, this high praise is almost universally tempered by severe criticism of ownership costs and reliability concerns beyond the initial warranty period. Long-term owners and those purchasing used models report extremely high and frequent maintenance and repair bills, particularly related to the air suspension system, brakes, tires, and complex electronics. The consensus indicates deep satisfaction with the vehicle's driving experience and luxury when under warranty, but significant frustration, financial strain, and regret when facing out-of-pocket repairs, leading many to declare they would never own one outside of warranty coverage.
Positioning vs competitors
Positioned as the pinnacle of comfort and luxury in the full-size three-row SUV segment, often favored over the BMW X7 for a smoother ride and more comfortable third row, though the X7 is frequently noted as sportier and sometimes better handling. Compared to Lexus rivals (GX, LX), the GLS is consistently described as superior in driving dynamics, passenger space (especially third-row usability), technology, and luxury feel, but dramatically inferior in long-term reliability and cost of ownership. The Cadillac Escalade is mentioned as a competitor with a quieter cabin. The vehicle is seen as a benchmark for luxury and comfort but is critically viewed as a financially risky proposition compared to more reliable, if less luxurious, alternatives from Lexus or mainstream brands.
Recommended configurations
The only strong, recurrent configuration advice is to purchase the vehicle with a comprehensive warranty, specifically a Mercedes CPO warranty or an extended warranty from a reputable provider. All-wheel drive (4MATIC) is assumed. There is an isolated mention to avoid vehicles with the exterior "night package" due to fading black trim. Premium fuel is required. No other specific package or option recommendations are provided with sufficient frequency.
General recommendations
Strongly recommended only for purchase with a transferable factory warranty or a robust CPO/extended warranty. Ideal for buyers who prioritize ultimate ride comfort, spacious third-row seating, and luxury features and who plan to own the vehicle strictly within the warranty period (typically suggested as under 75,000 miles). NOT recommended for buyers seeking long-term, low-cost ownership, reliability, or those unwilling to budget for very high maintenance costs. A pre-purchase inspection by a specialist European mechanic is considered essential for any used purchase. Buyers are advised to budget aggressively for consumables: premium fuel, frequent tire replacement (every 15,000-20,000 miles for rears), and brake service. Consider it a medium-term luxury experience rather than a long-term asset.
Remarks
Owner feedback spans multiple generations, from the early GL (pre-2016) to the current GLS, with cost and reliability concerns consistent across eras. The high cost of parts and dealer labor is a central theme, with independent specialist shops strongly recommended for out-of-warranty work. There is a clear pattern of owners enjoying the vehicle immensely for its driving experience but becoming disillusioned after the warranty expires, often vowing to switch to brands like Lexus or Toyota for their next vehicle. The financial reality of maintaining a depreciated $100,000 SUV is a dominant and sobering narrative in the community feedback. Analysis based on approximately 40 substantive owner discussions.
Generation by generation
Owner insights per generation and US complaint/recall records (NHTSA).
Complaints and recalls by model yearNo year grades F. Best year: 2023Source: NHTSA (US)Show table
Each year graded against the model's other years: Year Score.
| Year | Complaints | Recalls | Most-reported area |
|---|---|---|---|
| 2025 | 10 | 1 | service brakes |
| 2024 | 19 | 0 | unknown or other |
| 2023 | 10 | 0 | service brakes |
| 2022 | 16 | 0 | forward collision avoidance |
| 2021 | 37 | 0 | electrical system |
| 2020 | 38 | 0 | electrical system |
| 2019 | 28 | 0 | unknown or other |
| 2018 | 22 | 0 | service brakes |
| 2017 | 42 | 0 | unknown or other |
Complaint counts come from owner reports filed with the US National Highway Traffic Safety Administration. Higher-selling years naturally accumulate more complaints.
Recall notices1 on record · Source: NHTSA (US)Show recalls
2025 · visibility:rearview mirrors/devices:interiorcampaign 25V325000
Mercedes-Benz USA, LLC (MBUSA) is recalling certain 2024 GLE 350 4MATIC, 2025 GLE 450e 4MATIC, GLE 450 4MATIC Coupe, GLE 450 4MATIC, GLS 450 4MATIC, Maybach GLS 600 4MATIC, AMG GLE 53 4MATIC, AMG GLE 53 4MATIC Coupe, AMG GLE 63 S 4MATIC Coupe, and AMG GLS 63 4MATIC vehicles. The multi-purpose camera and the rearview mirror may be insufficiently attached to the windshield and may detach.
Specifications
Enthusiast code: X167
GLS 450 EQ Boost 4MATIC
3.0L 6-cylinder · 381 hp · AWD · automatic
Built 2026