Hitting the ’ole dusty trail in style

Although a full reveal isn’t expected to drop until later this month at the 2018 Detroit Auto Show, Mercedes-Benz is previewing the upcoming 2019 G-Class with a rundown on its off-road specs. The German automaker is also offering up a few shots of the camo’d luxury box bashing around in the rough stuff as visual proof of its prowess.

Continue reading to learn more about the new Mercedes-Benz G-Class.

The Full Story

Mercedes-Benz Previews New G-Class With Off-Road Specs Exterior
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We just got a look at the new G-Class’ revamped interior last month,which assured us that yes – this thing is still very much a five-star luxury hotel on wheels. Now we’re getting a few tidbits on the other side of the equation – that is, what it can do off the paved stuff.

“The primary goal of development was to make the new G-Class even more effective off-road,” Mercedes sates in the press release. Apparently, the automaker put the new G-Class to the test at a place called Schockl, which is a 1,445-meter (4,741-foot) mountain in Austria. Snaking its way towards the top of the mountain is a road about 5.6 km (roughly 3.5 miles) long, offering challenges like gradients up to 60 percent and lateral inclinations up to 40 percent. Here, Merc made sure the G-Class had the right stuff by clocking some 2,000 km (1,243 miles) along the difficult route.

To help it feel at home up there on the Austrian mountain, the G-Class keeps its ladder-frame construction, while in the corners you’ll find double wishbones for the front mated directly to the ladder-frame, sans a subframe. In back is a rigid rear axle that utilizes a quartet of longitudinal control arms per side, plus a Panhard rod. AMG provided input on the suspension set-up, maximizing capability and ground clearance, while keeping it somewhat civil on flatter, more even surfaces.

Mercedes-Benz Previews New G-Class With Off-Road Specs Exterior
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Updates for the latest model year include extra ground clearance, a deeper fording depth, higher driving stability angles, a higher approach angle, and finally, a higher breakover angle.

Updates for the latest model year include an additional 6 mm (0.24 inches) of ground clearance between the axles, an additional 10 cm (3.9 inches) for the fording depth (up to 70 cm, or 27.6 inches, total), an extra 7 degrees for the driving stability angle (up to 35 degrees), one more degree for the approach angle (up to 31 degrees), and finally, one more degree for the breakover angle (up to 26 degrees).

On the traction front, the G-Class gets three differential locks, plus a Low-Range off-road ratio. Routing the power is a new nine-speed automatic transmission, which Mercedes says was adapted to suit the needs of an off-roader thanks to shorter, crisper shift tuning. Torque is split 40 percent to the front and 60 percent to the rear. 18-inch all-terrain tires are an available option.

There’s also a new G-Mode that sets the mood with all the proper settings for off-roading. G-Mode is activated automatically when engaging the diff locks or Low Range Mode, and affects the steering, dampers, and throttle response.

Mercedes-Benz Previews New G-Class With Off-Road Specs Exterior
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There's also a new G-Mode that sets the mood with all the proper settings for off-roading.

A bird’s eye 360-degree camera, reversing camera, and three additional cameras provide extra visibility when searching for the right line. The infotainment assists include data like height, gradient, steering angle, diff status, and even a compass for extra explorer style points.

Stay tuned to TopSpeed, as we’ll be bringing you all the information on the new G-Class when it drops later this month in Detroit.

References

Mercedes-Benz G-Class

2018 Mercedes-Benz G-Class High Resolution Exterior Spyshots
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Read our full speculative review on the 2019 Mercedes-Benz G-Class.

2018 Mercedes-AMG G63 Spyshots Exterior
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Read our full speculative review on the 2019 Mercedes-AMG G63.

2013 Mercedes G-Class High Resolution Exterior Wallpaper quality
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Read our full review on the 2017 Mercedes-Benz G-Class.

Note: All images courtesy of Mercedes-Benz

Every G-Class has to conquer the Schöckl. Mercedes-Benz uses the 1,445 meter high local mountain near the Austrian city of Graz as a test track. The 5.6 km route includes gradients of up to 60 percent and lateral inclinations of up to 40 percent. During the development stage, a "G" has to endure over 2,000 strenuous kilometers on this very demanding course. The new G-Class masters the route with noticeably more control and comfort.

The primary goal of development was to make the new G-Class even more effective off-road. The G thus remains a true G – thanks to its standard ladder- type frame, the three 100-percent differential locks and LOW RANGE off-road ratio. Its suspension is the result of collaboration between Mercedes-Benz G GmbH and Mercedes-AMG GmbH. The result is an independent suspension with double-wishbone front axle in combination with a rigid rear axle. During development work, the engineers had the task of fighting for every millimeter, because off-road capability also means maximum ground clearance. The raised axle with independent suspension decisively contributes to this, and additionally increases the stiffness of the body with a strut brace.

Agile off-road

The components of the double-wishbone front axle are directly fixed to the ladder-type frame without a suspension subframe. The attachment points on the frame of the lower wishbone in a Z-direction are positioned as high up as possible. This arrangement ensures good driveability beyond the asphalt. Specifically for the G-Class, the new front axle is designed in such a robust way that the off-road performance and off-road capabilities of its predecessor are maintained and even surpassed. The new rigid rear axle is guided with four longitudinal control arms on each side and a Panhard rod. The off-road vehicle stays on track more robustly, and is agile and effortless in off-road applications.

The exceptional handling characteristics and driving safety on account of the driver’s high level of control can only be experienced firsthand. The following figures, however, clearly show that every little detail to improve the off-road characteristics has been checked and optimized where possible.

As before, high ground clearance and long suspension travel form the basis for the further improved off-road characteristics of the G-Class. The figures speak for themselves:

Slope climbing ability of up to 100% on suitable surfaces

Ground clearance between the axles: 241 millimeters (+6 millimeters )

Maximum fording depth: 70 centimeters in water and mud passages (+10 centimeters)

Driving stability at angles of 35° (+7°)

Angle of departure: 30°, angle of approach: 31° (+1°)

Breakover angle: 26° (+1°)

Suspension travel: Front axle: Spring/rebound travel of 85/100 millimeters; rear axle: Spring/rebound travel of 82/142 millimeters

The new "G-Mode" paves the way where there are none

One of the prerequisites for the improved off-road handling characteristics is the new "G-Mode". The G-Class changes to "G-Mode" independently of the chosen drive program as soon as one of the three differential locks has been activated or LOW RANGE has been engaged. This off-road mode adapts the adjustable damping of the chassis and the steering as well as the accelerator characteristic, avoids unnecessary gearshifts and ensures maximum off-road capability. A small "G" icon discreetly lights up in the instrument cluster. The G simply swallows up major bumps, and even in extreme terrain the driver does not have to frantically hold on to the steering wheel to effortlessly maneuver.

New automatic transmission on board

For power delivery, the 9G-TRONIC automatic transmission with torque converter was specifically adapted to meet the needs of the off-road icon. The developers have managed to reduce the shift and response times of the 9-speed transmission by means of a dedicated software application. The wide transmission ratio not only makes driving quieter and more comfortable especially at low engine speeds, it also simultaneously contributes to reducing fuel consumption.

The new transfer case is flange-mounted directly on to the 9G-TRONIC. It is adjusted in such a way that 40 percent of the drive torque reaches the front axle and 60 percent reaches the rear axle. The permanent all-wheel drive ensures maximum traction.

The low-range ratio can be engaged via the LOW RANGE switch (engaged when in transmission mode N) at speeds of up to 40 km/h. The gear ratio of the transfer case is then changed from 1.00 in HIGH RANGE to 2.93. It is possible to switch from LOW RANGE to HIGH RANGE at speeds of up to 70 km/h. The gear ratio of the transfer case is 2.93 and thus significantly shorter than in the predecessor model (2.1), which becomes noticeable particularly when pulling away on an extreme gradient.

All-round visibility from a bird’s-eye view is possible thanks to the 360° camera, the reversing camera and three further cameras. This means that obstacles located below the window line or in front of the vehicle such as a hill crest do not remain hidden. The information is presented clearly in full HD in a choice of different views on the multimedia system’s display. Dynamic guide lines show the road and the width of the G-Class. In addition, the off-road screen specially designed for the G-Class also displays data such as height, gradient, angle, compass, steering angle and activated differential locks.

Furthermore, for particularly arduous applications, 18-inch all-terrain tires are available.

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