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

TRANSMISSION 722.6 

in model 209.376 as of 1.6.03, 209.476, 211.076 as of 1.9.03, 211.276, 215.374 /379, 219.376, 220.074 /174 /179, 230.474 as of 1.9.03, 230.479 

On transmission 722.6 the electrohydraulic control unit converts the electric signals going out from the electronic transmission control (EGS) into hydraulic signals.

Faults occurring in the ETC control unit (N15/3) are handled by the limp-home system. This is designed to allow the driver to reach a service outlet even under extreme conditions.

In parallel with being conveyed via the controlled area network bus class C (engine compartment)(CAN-C), the selector lever positions "P", "R", "N" and "D" are passed on mechanically by means of a shift rod mechanically to the range selector lever at the transmission side.

Program selection "C/S" 

Via touching or holding the selector lever towards "+" or "-", the shift range is preselected and displayed in the instrument cluster (A1) until an upshift of the transmission 722.6 is possible.

Program selection "M" 

Program selection "M" is only possible in selector lever position "D". In the process the 5 forward gears of transmission 722.6 can be shifted direct, either via the steering wheel gear shifter MINUS (S110/1), steering wheel gear shifter PLUS (S111/1) or via the selector lever.

The shifted gear is displayed in the instrument cluster (A1). The transmission automatically changes into the sport program "S" when the selector lever is shifted out of selector lever position "D".

Shift processes at unacceptably high or low engine speed are not carried out.

In addition a mandatory downshift occurs at too low an engine speed or a mandatory upshift occurs at too high an engine speed. When the vehicle is stationary the transmission automatically shifts into 1st gear. It is possible to start off both in 1st or 2nd gear.