Coach transmissions have to do a lot. This is where EcoLife Coach demonstrates its advantages over manual and automated transmissions – with 25 percent more torque and designed for a much longer service life, challenging roads and slopes. Up to 2,300 newton meters of torque and 6 speeds ensure high average speeds at low engine speeds thanks to a higher constant axle ratio. That means the engine can always supply full torque without disengaging and engaging the clutch, and without losing speed during gearshifts.
The standard integrated TopoDyn Life drive program makes a major contribution by activating the right gearshift strategy to deliver optimum fuel consumption based on the topography and driving resistance. The brake force is adjusted automatically. Fuel consumption and noise development remain at a low level. The primary retarder does not depend on the output speed, which is why it delivers maximum deceleration almost up to standstill.
The dual cooling system with transmission and retarder heat exchanger reliably protects against overheating, which extends oil change intervals.
The torque converter used in the improved EcoLife transmission is even more powerful than its predecessor. With its reinforced converter cover, it is designed for engine torques of up to 2,300 newton meters. The converter clutch significantly helps cut fuel consumption. After a short start-off phase, the torque converter is bypassed, which guarantees maximum energy efficiency. The standard torsional vibration damper reduces shift speeds so that the engine can run at lower speeds. This enables slow maneuvering without clutch wear.