2015 Mercedes-Benz G500 4x4² V8 biturbo

Mercedes-Benz G500 4x4² Concept 

New engine offers V8 biturbo power

The 4.0 litre V8 biturbo engine in the G500 4x4² stands out for its sublime power delivery, the targeted lightweight construction, as well as its high efficiency. The newly developed eight-cylinder features twin turbochargers which are not mounted on the outside of the cylinder banks but rather inside the V configuration - what is known as the 'hot inside V'. The advantages lie in the compact engine design, the optimum response and the low exhaust gas emissions. The piezo direct petrol injection used exclusively at Mercedes-Benz is responsible for the mixture formation. The spray-guided combustion process has been enhanced in the third generation to meet all future statutory requirements. In series production, the highly efficient and economical 4.0-litre V8 biturbo engine would meet the Euro 6 emission standard, including the maximum particulate emissions level that will not take effect until 2016.

Mercedes-Benz G500 4x4² Concept 

The V8 crankcase consists of an aluminium alloy and ensures maximum strength with the lowest possible weight. The cylinder walls in NANOSLIDE® technology are twice as hard as conventional cast-iron cylinder liners, minimise the inner friction and thus the fuel required and facilitate maximum mileages. NANOSLIDE® was developed by Daimler starting in the year 2000 and has so far been used successfully and reliably in over 200,000 engines since 2006.

Mercedes-Benz G500 4x4² Concept 

Twin sidepipes on both sides in front of the rear wheels modulate the G-typical sound of the G500 4x4² and master the entire repertoire of potent sports cars - from soft mumbling in neutral through sonorous humming in the partial-load range to emphatic booming when accelerating under full load. A welcome side effect of the sidepipes: there is improved off-road capability, because in the rear area there are none of the usual rear silencers, which could otherwise restrict the angle of departure.

Mercedes-Benz G500 4x4² Concept 

The portal axles developed for versatile applications supplement the off-road portfolio of Mercedes-Benz and are the technical highlight of the G500 4x4² show car. As opposed to conventional rigid axles, here the wheels are not at the height of the centre of the axle, instead they are situated much further below on the axle heads due to the portal transmission. Therefore, on the G500 4x4² the ground clearance rises to 450 millimetres and the fording depth - or rather the diving depth - to 1000 millimetres.

Mercedes-Benz G500 4x4² Concept 

At the highest level: the portal axles' tricks

But the portal axle design has yet more decisive advantages which render complex adjustments superfluous: through the unchanged position of the rigid axles in relation to the chassis, the anchorage points of the suspension, the steering connection and the position of the cardan shafts all remain identical. In addition, the reduction in the portal transmissions balances the huge rolling circumferences in both the off-road and the on-road tyres. The gear ratios, speedometer drive and ABS sensor system also remain unchanged. This reduction in the hub drives also has the effect that the drive torque is first set at the wheel and thus the mechanical loads in the entire powertrain, in particular for the drive shafts, are reduced.