Transmission overload protection, function - GF07.61-P-4026V

ENGINES 272.920 in MODEL 203 with TRANSMISSION 722.9 up to Model Year 08/Modification Year 07

ENGINES 272.922 in MODEL 211 with TRANSMISSION 722.9

ENGINES 272.940 in MODEL 203 with TRANSMISSION 722.9 up to Model Year 08/Modification Year 07

ENGINES 272.941 in MODEL 203 up to Model Year 08/Modification Year 07

ENGINES 272.942 in MODEL 171 with TRANSMISSION 722.9 up to Model Year 08/Modification Year 07

ENGINES 272.943 in MODEL 211, 219 with TRANSMISSION 722.9

ENGINES 272.944 in MODEL 211

ENGINES 272.945 in MODEL 251 with TRANSMISSION 722.9 up to Model Year 08/Modification Year 07

ENGINES 272.946 in MODEL 221 with TRANSMISSION 722.9 up to Model Year 08/Modification Year 07

ENGINES 272.960 in MODEL 203 with TRANSMISSION 722.9 up to Model Year 08/Modification Year 07

ENGINES 272.963 in MODEL 171 with TRANSMISSION 722.9 up to Model Year 08/Modification Year 07

ENGINES 272.964 in MODEL 211, 219 with TRANSMISSION 722.9

ENGINES 272.965 in MODEL 221 with TRANSMISSION 722.9 up to Model Year 08/Modification Year 07

ENGINES 272.966 in MODEL 230 with TRANSMISSION 722.9 up to Model Year 08/Modification Year 07

ENGINES 272.967 in MODEL 164, 251 with TRANSMISSION 722.9 up to Model Year 08/AEJ 07

ENGINES 272.970 in MODEL 203 up to Model Year 08/Modification Year 07

ENGINES 272.972 in MODEL 211

ENGINES 272.975 in MODEL 221 with TRANSMISSION 722.9 up to Model Year 08/Modification Year 07

ENGINES 273.922 in MODEL 221 with TRANSMISSION 722.9 up to Model Year 08/Modification Year 07

ENGINES 273.923 in MODEL 164 with TRANSMISSION 722.9 up to Model Year 08/Modification Year 07

ENGINES 273.924 in MODEL 221 with TRANSMISSION 722.9 up to Model Year 08/Modification Year 07

ENGINES 273.960 in MODEL 211, 219 with TRANSMISSION 722.9

ENGINES 273.961 in MODEL 216, 221 with TRANSMISSION 722.9 up to Model Year 08/modification year 07

ENGINES 273.962 in MODEL 211

ENGINES 273.963 in MODEL 164, 251 with TRANSMISSION 722.9 up to Model Year 08/modification year 07

ENGINES 273.965 in MODEL 230 with TRANSMISSION 722.9 up to Model Year 08/Modification Year 07

ENGINES 273.967 in MODEL 209 with TRANSMISSION 722.9

ENGINES 273.968 in MODEL 221 with TRANSMISSION 722.9 up to Model Year 08/Modification Year 07

ENGINES 272.940 in MODEL 209 with TRANSMISSION 722.9

ENGINES 272.960 in MODEL 209 with TRANSMISSION 722.9

Shown on Engine 272.963 in Model 171

Fig 1: Transmission Overload Protection Function Diagram

Courtesy of MERCEDES-BENZ OF NORTH AMERICA.

This function protects the shift elements of the automatic transmission from thermal overload during load changes in the upper engine speed range.

Through brief retardation of the ignition and closing of the throttle valve during shift operations, the engine torque is reduced. The ME-SFI [ME] control unit is supplied with a signal for this purpose by the transmission control unit via the CAN data bus.

ME-SFI [ME] control unit, component description	GF07.61-P-6000V
Component description for the crankshaft Hall sensor	GF07.04-P-6220V
Throttle valve actuator, component description	GF30.20-P-2020V
Accelerator pedal sensor, component description	GF30.20-P-2010V
ME-SFI ignition system, function	GF15.12-P-0001V