2.6.2. Automatic transmission
Even at full synchronization, easy gear shifting and a "easy" pedal of coupling gear shifting for some drivers remains a difficult task. To exempt drivers from need of its decision, Mercedes-Benz began to release the automatic transmissions (AT).
By AKP (fig. 1.17) it is calculated on convenient and simple management.
Its distinctive feature is smooth and easy gear shifting. AKP independently decides when and what transfer needs to be applied. Control and management electric and the AKP hydraulic functions exercises a special electronic control unit. The fourth generation of AKP which are established since the beginning of 1995 on Mercedes of the E-class (Е 320 and E 420) has 5 steps of gear shifting with electronic control.