【正文】 both act as the gearbox control unit, forms a unit which is starting clutches. acmodated in the gearbox housing. The rotational direction for reverse is The Tiptronic function provides 6 speeds“ for changed by means of a plaary gear train. manual gear selection. The engine torque is transmitted to the variator via an auxiliary reduction gear step and transferred from there to the ?nal drive. Reverse gear clutch Flywheel damper unit Auxiliary reduction gear step Variator with chain 228_003 Plaary gear train Hydraulic control Gearbox unit control unit Forward clutch 9 Introduction Speci?cations Designation: multitronic? 01J Factory designation: VL 30 Code: DZN . transferable torque: . 310 Nm Range of ratios of the variator: Spread: 6 Ratio of auxiliary reduction gear step: 51/46 : 1 Final drive ratio: 43/9 : 1 Operating pressure of oil pump: . approx. 60 bar Delivery rate of oil pump: 10 rpm 1000 rpm ATF for multitronic?: G 052 180 A2 Axle oil for multitronic?: G 052 190 A2 Gear oil quantities: ATF new ?lling incl. ATF cooler and ATF ?lter approx. litres ATF change approx. litres Axle oil approx. litres Gross weight without ?ywheel : approx. 88 kg Overall length: approx. 610 mm All the sizes speci?ed in this Self Study Programme refer only to the multitronic? with the code DZN. 228_001 10 Gearbox modules The ?ywheel damper unit In reciprocating engines, the unevenness of the bustion sequence induces torsional vibration in the crankshaft. This torsional vibration is transmitted to the gearbox and results in resonant vibration here, producing noise and overloading ponents in the gearbox. The ?ywheel damper unit and the twomass ?ywheel dampen torsional vibration and ensure the engine runs quietly. In the V6 engine, engine torque is transmitted to the gearbox through a ?ywheel damper unit. 228_032 As fourcylinder engines do not run as smoothly as 6cylinder engines, a twomass Damper unit ?ywheel is used in 4cylinder engines. Flywheel Twomass ?ywheel For more detailed information, please refer to SelfStudy Programme 142. 228_004 11 1 2 p s p F l h u o a o m r n w b e. n p e a t f t