General information (Mercedes-Benz C-Class W201)

4- and 5-speed gearboxes are available. The gearbox is housed in a housing bolted to the rear of the engine.

The rotation from the crankshaft is transmitted through the clutch to the primary shaft, which has a splined extension to receive the driven disc of the clutch. The secondary shaft transmits rotation to the rear differential through the propeller shaft.

The primary shaft is located in line with the secondary shaft. The gears of the primary and secondary shafts are in constant engagement with the gear block of the intermediate shaft. The gear selection is carried out by sliding the synchronizer hubs, which connect the corresponding gear of the secondary shaft to the shaft.

Gear selection is accomplished by a lever mounted on the floor of the vehicle and a gear selection mechanism. The gear selection mechanism causes a specific fork to move the corresponding sleeve along the shaft to engage the pinion with the synchronizer hub. Since the synchronizing hubs have splines on the secondary shaft, this allows the pinion to engage on the shaft, thus transmitting rotation. To ensure fast and silent gear shifting, synchronizers are installed on all forward gears. consisting of locking rings and pins loaded with springs, as well as gears and hubs. Synchronized engagement of the cones is formed on the mating surfaces of the locking rings and gears.

Material taken from a web resource mercedesman.ru