2017 Mercedes-Benz E 220 d All Terrain – Off-Highway Drive. Coloration: Designo Hyacinth Crimson Metallic.
Whether or not on tough tracks, muddy dust roads or ice-covered highways – the E-Class All-Terrain is ready to deal with any kind of floor effortlessly because of the everlasting all-wheel drive 4MATIC. 4MATIC relies on the digital traction system 4ETS at the side of the Digital Stability Program ESP®. 4ETS distributes the ability between the entrance and rear axle within the ratio of 45:55 (particulars apply to left-hand-drive car). If a number of wheels lose grip, 4ETS brakes them at lightning pace and mechanically diverts the drive energy to the wheels providing good traction.
Higher traction and driving stability on slippery surfaces are the important thing benefits of the all-wheel drive system 4MATIC. With the 4MATIC fashions of the brand new E-Class, a design change has taken place: the single-stage switch case is now not built-in within the computerized transmission, however is flange-mounted on the 9G‑TRONIC as a separate system. This improves effectivity, reduces friction and saves round three kg in weight in contrast with the earlier design. On prime of this there may be optimum matching of the lubricant properties and avoidance of impurities attributable to put on from the switch case within the 9G-TRONIC because of separate oil and hydraulic circuits.
Options which have been retained embody the compact design of the 4MATIC, which ends up in no restrictions within the inside and baggage compartment, in addition to the so-called pre-lock function. As a part of this, a double-disc clutch reaching a primary locking torque of roughly 50 Nm between the entrance and rear axle is fitted to the central differential. The clutch pack is completely preloaded by way of a plate spring. Within the case of spinning wheels on one of many two axles, friction torque is transmitted to the axle spinning extra slowly by relative motion of the discs. A sustained enchancment to traction and directional stability of the car are achieved via this precept of variable torque shift. Notably within the case of low coefficients of friction between the tyres and the street floor, the traction and stabilising impact of this so-called pre-lock clutch is clearly noticeable.