The Mercedes-Benz G-Class, an enduring symbol of off-road prowess and luxury, received a significant upgrade with the 2014 model year, particularly in its high-performance AMG G63 variant. This iteration marked a leap forward, blending state-of-the-art technology with the G-Class’s legendary ruggedness. For enthusiasts and potential owners of a 2014 Mercedes-Benz G Class, understanding these enhancements is key to appreciating its unique position in the automotive landscape.
The 2014 G63 AMG debuted with a potent combination of increased power and improved efficiency, a testament to AMG’s engineering expertise. This was achieved through the introduction of the advanced AMG 5.5-liter V8 biturbo engine and the AMG SPEEDSHIFT PLUS 7-speed automatic transmission. This powertrain not only elevated performance metrics but also integrated cutting-edge features like spray-controlled gasoline direct injection and the ECO stop/start function, technologies previously unseen in the G-Class lineage.
Under the hood of the 2014 Mercedes-Benz G Class AMG model resided the formidable AMG 5.5-liter V8 biturbo engine. This powerhouse delivered a stunning 536 horsepower and 560 lb-ft of torque. Such figures translated to exhilarating performance, propelling the G63 AMG from 0 to 60 mph in a mere 5.3 seconds. The top speed was electronically governed at 130 mph, ensuring a balance between high-speed capability and controlled driving dynamics. This engine marked a significant upgrade from its predecessor, the 2011 G55 AMG KOMPRESSOR, boasting an increase of 44 horsepower and 44 lb-ft of torque, solidifying its appeal and accounting for a substantial 40 percent of global G-Class sales at the time.
To fully appreciate the performance enhancements, consider the key specifications of the 2014 Mercedes-Benz G Class G63 AMG:
| Feature | Specification |
|---|---|
| Displacement | 5,461 cc |
| Bore x Stroke | 98.0 x 90.5 mm |
| Compression Ratio | 10.0 : 1 |
| Horsepower | 536 hp @ 5,500 rpm |
| Torque | 560 lb-ft @ 2,000–5,000 rpm |
| 0-60 mph Acceleration | 5.3 seconds |
| Top Speed | 130 mph (electronically limited) |
The 2014 Mercedes-Benz G Class G63 AMG’s performance was not solely about raw power; efficiency was also a key focus. The integration of the AMG SPEEDSHIFT PLUS 7-speed automatic transmission played a crucial role here. This advanced gearbox, coupled with the alternator management system and ECO stop/start function, resulted in a remarkable 13 percent reduction in fuel consumption (based on the European cycle). The transmission offered three distinct drive modes: “Controlled Efficiency” (C), Sport (S), and Manual (M), providing versatility for various driving conditions and preferences.
In “Controlled Efficiency” mode, the ECO stop/start system actively shut off the engine when the vehicle was stationary, maximizing fuel savings in urban environments. This mode also featured smoother acceleration and gear changes, with the vehicle typically starting in second gear for enhanced efficiency. Conversely, Sport and Manual modes deactivated the ECO stop/start function, providing a more responsive and dynamic driving experience with quicker gear shifts achieved through precisely timed ignition and injection adjustments. Further enhancing the transmission’s efficiency was a new torque converter with centrifugal pendulum, friction-reducing bearing, and advanced transmission oil thermal management.
Despite the emphasis on efficiency, the 2014 Mercedes-Benz G Class AMG retained the signature visceral appeal that AMG vehicles are known for. The AMG sports exhaust system, with its twin tailpipes, emitted the unmistakable and deeply resonant AMG V8 sound. This auditory experience remained central to the G63 AMG’s character, ensuring that efficiency gains did not come at the expense of driver engagement and emotional connection. Furthermore, the G63 AMG incorporated the latest catalytic converter technology, ensuring compliance with stringent EU 5 emission standards and US market requirements (LEV-II standard, on-board diagnosis II, and lambda probe diagnosis).
To complement the enhanced powertrain, the 2014 Mercedes-Benz G Class AMG received adjustments to its chassis settings. The AMG sports chassis suspension and damper settings were recalibrated to accommodate the vehicle’s more dynamic handling characteristics. Mercedes-AMG engineers also implemented various measures to optimize acoustic comfort. These included improved bearings for the automatic gearbox, transfer case, and engine, effectively reducing vibration and noise levels. The result was a more refined and comfortable ride, particularly beneficial during long journeys, helping to minimize driver fatigue and maintain alertness.
The wheels and brakes of the 2014 Mercedes-Benz G Class G63 AMG were also significantly updated. It came standard with new AMG split 5-spoke light-alloy wheels, sized 9.5 x 20 inches and finished in titanium grey with a high-sheen finish. These were paired with 275/50 R 20 tires. The new AMG high-performance brakes delivered exceptional stopping power and durability. Ventilated and perforated brake discs, measuring 14.8 x 1.42 inches at the front and 13 x 0.79 inches at the rear, provided optimal thermal management and outstanding deceleration. The front axle utilized a six-piston fixed-caliper brake system borrowed from the ML 63 AMG, while the rear axle featured a single-piston floating-caliper system. Distinctive red-painted calipers were a standard visual highlight of the G63 AMG.
Safety in the 2014 Mercedes-Benz G Class was further enhanced with an updated ESP® system. This included automatic control systems such as start-up assist and a HOLD function, facilitating easier hill starts. In emergency braking situations, the system proactively “pre-charged” pressure in the brake lines when the driver abruptly released the accelerator, ensuring maximum braking force was immediately available upon brake application.
The exterior design of the 2014 Mercedes-Benz G Class G63 AMG also underwent a refreshing update, adopting the new AMG brand face, similar to the SL63 AMG and SL65 AMG. The high-gloss black “twin-blade” radiator grille, featuring four chrome inserts, immediately identified the model as an AMG variant. This grille design seamlessly integrated with the G-Class’s iconic silhouette, maintaining its off-road character while adding a modern AMG touch.
A completely redesigned AMG bumper with three large openings for airflow inlets was another striking new feature. Vertical high-gloss chrome stainless steel inserts contributed to the G63 AMG’s assertive and masculine front-end appearance. New LED daytime running lamps were positioned below the bi-xenon headlamps, enhancing visibility and adding a contemporary lighting signature. Characteristic AMG fender flares, stainless-steel running boards, and side protective strips with stainless-steel inserts further distinguished the AMG model. The “V8 BITURBO” logo on the front fenders and a standard brush guard (on US models) completed the exterior enhancements.
Inside the 2014 Mercedes-Benz G Class G63 AMG, significant innovations elevated the cabin experience. A new instrument panel and state-of-the-art infotainment and assist systems modernized the interior. The G63 AMG featured an AMG instrument cluster with a color TFT screen, AMG main menu, and a dedicated gear display. White-lit AMG sills on all doors added a touch of exclusivity. The elegant ESELECT shift lever, adorned with the distinctive AMG medallion, was a familiar element from other AMG models like the SLS AMG. designo leather upholstery with fluted leather door paneling created a luxurious ambiance. Optional interior trims included AMG carbon, designo Champagne white lacquer, or designo light brown satin poplar, allowing for further personalization.
In conclusion, the 2014 Mercedes-Benz G Class G63 AMG represented a significant evolution of the iconic off-roader. It successfully combined enhanced performance and efficiency with modern technology and refined luxury, all while retaining the G-Class’s legendary rugged character and distinctive styling. For those seeking a blend of unparalleled off-road capability and high-performance on-road driving, the 2014 G63 AMG remains a compelling and highly desirable choice.
