523 D drive range third or top gear

With the selector lever in D range, hydraulic line pressure will apply the direct clutch, high and reverse clutch and forward clutch.

As for first and second gear operating conditions, the engine torque is transmitted through the locked overdrive gear set to the high and reverse multiplate clutch and the forward multiplate clutch, both of which are applied. Subsequently, the high and reverse clutch will rotate the double sun gear clockwise and similarly the forward clutch will rotate the forward annular gear clockwise. This causes both external and internal gears on the forward gear set to revolve in the same direction at similar speeds so that the bridging planet gears become locked and the whole gear set therefore revolves together as one. The output shaft drive via the reverse carrier therefore turns clockwise with no relative speed reduction to the input shaft, that is as a direct drive ratio 1:1.

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