Used Mercedes G-Class (2018-2024) Buyer's Guide: Costs, Reliability & What To Know

Used Mercedes G-Class (Mk2, 2018-2024) Buyer’s Guide

For drivers seeking the ultimate combination of luxury and legendary off-road capability, the Mercedes-Benz G-Class occupies a unique space in the SUV market. This guide focuses on the second-generation model, which was on sale between 2018 and 2024. While its iconic boxy silhouette remained reassuringly familiar, this iteration represented a significant technological and comfort-focused overhaul from its predecessor. Understanding its characteristics is crucial for any potential buyer, as this is a vehicle renowned for being expensive to both purchase and run.

A Modern Interpretation of an Icon

The Mk2 G-Class, known internally as the W463A, arrived with a mission to refine the rugged classic for a new era. While it retained the separate ladder-frame chassis and three differential locks that define its go-anywhere reputation, the body was wider and the chassis was entirely new. This redesign brought substantial improvements in on-road manners, reducing body roll and making it a more comfortable proposition for daily driving. The interior was also transformed, ditching the more utilitarian feel of older models for the lavish, high-tech cabin expected from a top-tier Mercedes-Benz, complete with the brand's signature widescreen digital displays.

Engine Line-up and Performance

The 2018-2024 model range offered a selection of powerful engines to suit different priorities. The entry point for many was the G 350 d, featuring a 3.0-litre straight-six diesel engine providing a blend of torque and relative efficiency. For petrol enthusiasts, the G 500 housed a biturbo 4.0-litre V8 delivering formidable performance. At the peak of the range sat the fearsome Mercedes-AMG models, such as the G 63 and the even more extreme G 65, offering supercar-rivalling power outputs that cement the G-Class's status as a performance powerhouse.

Running Costs and Ownership Considerations

Prospective owners must be prepared for the significant running costs associated with a vehicle of this size and performance. Fuel consumption is high, particularly for the V8 petrol models, which can see figures in the low teens (mpg) under enthusiastic driving. Insurance groups are at the very top of the scale, and road tax is a considerable annual expense. Furthermore, servicing and maintenance costs are premium, with parts and labour reflecting the G-Class's exclusive positioning within the Mercedes-Benz range.

What to Look Out For When Buying Used

While built to a very high standard, a thorough inspection is essential when considering a used G-Class. Given its capabilities, it is wise to check for any signs of serious off-road use that may have caused damage to the underbody or suspension components. As with any complex modern vehicle, ensuring all electronic systems—from the infotainment to the sophisticated driver aids and differential locks—are functioning correctly is paramount. A full service history from a reputable specialist or main dealer is highly recommended to verify that the vehicle has been properly maintained.

Is a Used G-Class the Right SUV for You?

The Mercedes G-Class is an undeniable statement. It offers a rare blend of unmatched off-road heritage, ultra-luxurious appointments, and, in AMG guise, breathtaking performance. However, this comes at a price. The initial purchase price for a used example remains steep, and the ongoing costs of fuel, insurance, and maintenance are substantial. It is a vehicle that demands a significant financial commitment, making it essential for buyers to carefully weigh the unparalleled prestige and capability against the realities of ownership.

For those who desire the ultimate luxury SUV with genuine all-terrain credentials and have the budget to match, the used G-Class presents a compelling, if costly, opportunity. Ensuring a comprehensive vehicle history check and a pre-purchase inspection from a qualified mechanic is the best way to secure a reliable example of this modern icon.