Gear shift, function - GF27.60-P-2000GZ

TRANSMISSION 722.9 in MODEL 164.1/8, 251.0/1 up to Model Year 8 

The electrohydraulic controller unit converts electrical signals going out from the fully integrated transmission control (VGS) into hydraulic signals. Faults occurring in the fully integrated transmission control (VGS) are covered by limp-home mode. The limp-home strategy is designed so that the driver can still reach a Mercedes-Benz service operation under extreme conditions.

The gear selector switch positions "P", "R", "N" and "D" are transmitted by the steering column module (N80) to the Controller Area Network bus class C (engine compartment) (CAN-C). The fully integrated transmission control (VGS) control unit (Y3/8n4) passes on the gear selector lever positions to the intelligent servo module for DIRECT SELECT (A80) taking into account various information.

The intelligent servo module for DIRECT SELECT changes the position of the range selector lever which is passed on mechanically to the selection range sensor (VGS) (Y3/8s1). Via the following steering wheel shift buttons the shift range up to which it is possible to upshift the transmission is preselected:

• Steering wheel gear shifter MINUS (S110/1) and steering wheel gear shifter PLUS (S111/1), on model 164.177, model 251.077/177
• Left steering wheel gear shifter (S110/2) and right steering wheel gear shifter (S111/2), except model 164.177, model 251.077/177

The shift range is displayed in the instrument cluster (A1).