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AUTOMATIC TRANSMISSION NAG1 - SERVICE INFORMATION DESCRIPTION The NAG1 automatic transmission (Fig. 1) is an electronically controlled 5-speed transmission with a NAG1 identifies a family of transmissions and means “N”ew “A”utomatic “G”earbox, generation 1. • W = A transmission using a hydraulic torque converter. • 5 = 5 forward gears. • A = Automatic Transmission. • 580 = Maximum input torque capacity in New- ton meters. The gears are actuated electronically/hydraulically. The gears are shifted by means of an appropriate Electronic transmission control enables precise adaptation of pressures to the respective operating Furthermore, it offers the advantage of a flexible adaptation to various vehicle and engines. Basically, the automatic transmission with elec- tronic control offers the following advantages: • Reduces fuel consumption. • Improved shift comfort. • More favourable step-up through the five gears. Fig. 1 NAG1 Automatic Transmission 1 - TORQUE CONVERTER 11 - PARKING LOCK GEAR 2 - OIL PUMP 12 - INTERMEDIATE SHAFT 3 - DRIVESHAFT 13 - FREEWHEEL F2 4 - MULTI-DISC HOLDING CLUTCH B1 14 - REAR PLANETARY GEAR SET 5 - DRIVING CLUTCH K1 15 - CENTER PLANETARY GEAR SET 6 - DRIVING CLUTCH K2 16 - ELECTROHYDRAULIC CONTROL UNIT 7 - MULTI-DISC HOLDING CLUTCH B3 17 - FRONT PLANETARY GEAR SET 8 - DRIVING CLUTCH K3 18 - FREEWHEEL F1 9 - MULTI-DISC HOLDING CLUTCH B2 19 - STATOR SHAFT 10 - OUTPUT SHAFT 20 - TORQUE CONVERTER LOCK-UP CLUTCH VA AUTOMATIC TRANSMISSION NAG1 - SERVICE INFORMATION 21 - 3 |