Used Mercedes-Benz G-Class: Buyer's Guide
The Mercedes-Benz G-Class is the undisputed king of off-roaders, blending rugged capability with the ultimate in modern luxury. Built on a military-derived chassis and updated with efficient mild-hybrid powertrains, it's an icon engineered for the future. With a definitive 5-star Euro NCAP safety rating, it stands as the authoritative and secure choice in the luxury SUV segment.
Used Mercedes-Benz G-Class Popular Trims
G 550: The definitive all-rounder, the G 550 is comprehensively equipped as standard. It features the beautiful dual-screen MBUX system, heated and ventilated massaging seats, and the incredible Burmester 3D surround sound system.
AMG G 63: The driver's choice. This trim adds the formidable handcrafted 4.0L V8 engine and exclusive AMG styling. Crucially, it also includes the advanced AMG Active Ride Control suspension, transforming its on-road handling.
G 580 with EQ Technology: The future of off-roading. This revolutionary all-electric model features a unique quad-motor powertrain and exclusive features like G-Steering, offering the ultimate in off-road capability and a near-silent driving experience.
Used Mercedes-Benz G-Class Popular Battery & Drivetrain Options
G 550 (3.0L I6 MHEV): A sophisticated and powerful engine, the new inline-six mild-hybrid produces a healthy 443 hp and delivers the best fuel economy of the petrol models at 18 MPG combined.
AMG G 63 (4.0L V8 MHEV): The heart of the G-Class legend. The handcrafted 577 hp V8 delivers immense power and a thunderous soundtrack, now with the added benefit of mild-hybrid assistance for improved responsiveness.
G 580 (Quad-Motor EV): A revolutionary powertrain. Four individual motors provide instant torque and pinpoint control, unlocking new levels of off-road performance and a 239-mile range with the equivalent of 62 MPGe.
Running Costs:
VED and insurance costs for all G-Class models are in the highest brackets, reflecting their premium status and performance.
Used Mercedes-Benz G-Class Practicality
The G-Class offers a surprising amount of practical space and utility within its iconic, boxy dimensions.
Boot Space: It provides 38 cubic feet of cargo space behind the rear seats. This is a tall, vertical space, ideal for stacking bulky items, though the side-hinged swing-out door requires space to open.
Passenger Space: Rear legroom is adequate for adults, making it a viable five-seater for most journeys. The high roofline ensures plenty of headroom.
Off-Road Cockpit: This new display provides all the crucial data for serious off-roading, including vehicle position, altitude, and steering angle, turning the cabin into a command centre for adventure.
Used Mercedes-Benz G-Class Key Features
Triple-Locking Differentials: The undisputed gold standard for off-road traction, giving the G-Class its legendary capability.
MBUX Infotainment System: A beautiful and intuitive system with dual 12.3-inch screens and a Burmester 3D Surround Sound System as standard.
""Transparent Hood"" Camera: A game-changing feature that provides a virtual view under the front of the car for navigating off-road obstacles.
Desirable Options:
AMG Active Ride Control: A must-have for the G 63, this hydraulic suspension transforms the on-road handling and comfort.
Rear Seat Entertainment System: Keeps passengers entertained with dual screens on long journeys.
Exclusive Interior Package Plus: The ultimate upgrade, with the finest Nappa leather covering almost every surface.
Used Mercedes-Benz G-Class Reliability Rating
The G-Class is engineered for extreme durability, a fact proven by its decades of service and a class-leading reliability rating from iSeeCars, ranking it the 1 Most Reliable Luxury Large SUV.
What to Check on a Test Drive:
Drive Modes: Cycle through the on-road and off-road drive modes (Trail, Rock, Sand) to ensure the systems are responding correctly.
Differential Locks: Confirm that the indicator lights for the three differential locks illuminate correctly when engaged.
AMG Suspension: On a dynamic road, switch the G 63's suspension between Comfort, Sport, and Sport+ to feel the significant change in body control.
Comfort Systems: Take time to explore the different massage functions, ambient lighting settings, and the Burmester audio system.
Used Mercedes-Benz G-Class Safety Rating
With its robust body-on-frame construction and advanced driver aids, the G-Class provides ultimate protection, backed by a full 5-star Euro NCAP safety rating.
Key Safety Tech: The combination of its immensely strong chassis and modern active safety systems makes it a fortress on wheels. Standard features include nine airbags, advanced automated emergency braking, lane-keeping assist, and blind-spot monitoring.
Awards for the Used Mercedes-Benz G-Class
The G-Class is also consistently praised by automotive experts worldwide for its unmatched off-road capability and iconic status.
Who is the Used Mercedes-Benz G-Class Best For?
Drivers who demand the ultimate in capability, luxury, presence, and exclusivity.
The serious off-road enthusiast who requires the most capable vehicle on the market.
Those who appreciate uncompromising engineering and a vehicle with a legendary heritage.
Key Alternatives to Consider:
For those exploring the market, the Land Rover Defender and Range Rover are also compelling options in this category.
Frequently Asked Questions about the Used Mercedes-Benz G-Class
What are the expected annual running costs for a 2025 Mercedes G-Class?
The 2025 Mercedes G-Class offers a range of powertrains with corresponding running costs appropriate for a flagship luxury SUV.
Fuel Economy: The G 550 mild-hybrid offers a combined estimate of 18 MPG, while the powerful AMG G 63 is rated at 15 MPG combined. The all-electric G 580 offers a highly efficient 62 MPGe combined.
VED (Road Tax): While specific 2025 rates are not yet published, all new cars registered after April 1, 2025, will be subject to new, higher VED rates in the UK.
Insurance: The G-Class typically falls into the highest insurance groups due to its value and performance, and prospective owners should seek a tailored quote for an accurate cost.
How does the new mild-hybrid system benefit the 2025 Mercedes G-Class?
The new 48-volt mild-hybrid system, standard on both the G 550 and AMG G 63, provides several key benefits to enhance both performance and refinement.
Performance Boost: The system's integrated starter-generator can provide an electric boost of up to 20 horsepower and 148 lb-ft of torque, improving acceleration and responsiveness.
Improved Efficiency: By allowing the engine to 'sail' with the engine off during coasting and enabling smoother start-stop operation, the mild-hybrid system helps to improve overall fuel economy.
Enhanced Refinement: The system ensures a smoother and more seamless driving experience, particularly in stop-and-go traffic.
What is the real-world driving range of the electric Mercedes G-Class 580?
The all-electric 2025 Mercedes G-Class 580 with EQ Technology offers a practical and usable driving range for both daily journeys and longer adventures.
Estimated Range: The G 580 has an EPA-estimated range of approximately 239 miles on a single charge.
Real-World Factors: As with any electric vehicle, the real-world range will vary depending on factors such as driving style, ambient temperature, and use of in-car features like heating or air conditioning.
Efficient Powertrain: The G 580's advanced powertrain and large battery are designed to maximise efficiency and provide a confident driving experience.
How long does it take to fully charge the electric Mercedes G-Class 580?
Charging the electric Mercedes G-Class 580 is a straightforward process, with charging times varying based on the type of charger used.
Home Charging: Using a dedicated home wallbox is the most convenient way to charge overnight, ensuring the vehicle is ready with a full battery each morning.
DC Fast Charging: The G 580 is capable of DC fast charging, which can significantly reduce charging times. It can charge from 10% to 80% in approximately 32 minutes at a compatible public fast-charging station.
Charging Cost: The cost to fully charge the battery depends on your home electricity tariff or the rate at a public charging station, multiplied by the battery's size in kWh.
How does the 'Transparent Hood' feature work on the Mercedes G-Class?
The 'Transparent Hood' is an innovative off-road feature on the 2025 Mercedes G-Class that uses cameras to give the driver a virtual view of what is underneath the front of the vehicle.
Camera System: It utilises the 360-degree camera system to create a composite image of the ground directly in front of and under the engine bay.
MBUX Display: This virtual view is displayed on the central MBUX infotainment screen, showing the position of the front wheels and the terrain ahead.
Enhanced Off-Roading: This allows the driver to navigate challenging obstacles like rocks or crests with greater precision and confidence, avoiding potential damage to the vehicle's underside.
When should you use the three differential locks on the Mercedes G-Class?
The three fully locking differentials are a hallmark of the Mercedes G-Class's legendary off-road capability and should be used sequentially to gain maximum traction in extreme conditions.
Centre Differential Lock: Engage this first when you encounter slippery surfaces like mud, snow, or loose gravel. It ensures power is split 50/50 between the front and rear axles.
Rear Differential Lock: If you need more traction, engage the rear differential lock next. This locks the two rear wheels together, forcing them to turn at the same speed, which is ideal for climbing steep, uneven terrain.
Front Differential Lock: The final step for the most extreme off-road situations is to engage the front differential lock. This provides the ultimate level of traction by locking all four wheels together, but should only be used at low speeds when navigating very difficult obstacles.
What is the benefit of the new AMG Active Ride Control suspension?
The new AMG Active Ride Control with hydraulic roll stabilisation is a game-changing suspension system available on the 2025 AMG G 63, significantly enhancing both its on-road handling and comfort.
Reduced Body Roll: The active hydraulic system counteracts body roll during cornering, making the G 63 feel much flatter, more agile, and more confidence-inspiring to drive on winding roads.
Improved Comfort: The system also improves ride comfort by better absorbing bumps and imperfections in the road surface, addressing a common criticism of previous models.
Dynamic Handling: It provides a crisper and more responsive feel during turn-in, especially in the Sport and Sport+ driving modes, transforming the G 63's on-road dynamics.
What is the 'G-Steering' function on the electric Mercedes G-Class 580?
The 'G-Steering' function is a unique feature of the all-electric G-Class 580, designed to significantly improve its manoeuvrability in tight off-road situations.
How it Works: By precisely controlling the power to the four individual electric motors, the system can pivot the vehicle around its inside rear wheel.
Reduced Turning Circle: This dramatically reduces the vehicle's turning circle on loose surfaces, allowing it to navigate incredibly tight turns that would be impossible for a conventional vehicle.
Off-Road Agility: 'G-Steering' is another tool in the electric G-Class's arsenal that enhances its already formidable off-road agility and capability.
How does the OFFROAD COCKPIT display help when driving the Mercedes G-Class?
The new OFFROAD COCKPIT is a dedicated display mode in the 2025 Mercedes G-Class that provides the driver with crucial, real-time information for navigating challenging terrain.
Key Data: It presents a clear overview of essential off-road data, including vehicle positioning (roll and pitch), altitude, steering angle, and compass heading.
Dual-Screen Display: This information is conveniently displayed on both the driver's digital instrument cluster and the central MBUX infotainment screen.
Informed Off-Roading: By having this data readily available, the driver can make more informed decisions and tackle difficult off-road obstacles with greater confidence and control.
