ME-SFI limiting maximum vehicle speed, function - GF07.61-P-3019MAS

ENGINE 156.984 in MODEL 216.377, 221.077 /177 as of Model Year 09 /AEJ 08

Function requirements for maximum speed limit, general points

Circuit 87M ON (engine control ON)
Engine running

Maximum speed limit, general points

For vehicles with the corresponding engine power, the ME-SFI control unit (N3/10) limits the maximum speed to 250 km/h. The ME-SFI control unit receives the vehicle speed information over the chassis CAN (CAN E) from the ESP control unit (N47-5).

Maximum speed limit function sequence

If 250 km/h is reached, the ME-SFI control unit reduces the throttle valve opening angles (of the front and rear throttle valve actuators (M16/3, M16/4)) and the injection times of the fuel injection valves (Y62).

These measures ensure simple maximum speed limitation the reduction of the engine torque.

Electrical function schematic for maximum speed limit	Model 216	PE07.61-P-2779-97CAC
Electrical function schematic for maximum speed limit	Model 221	PE07.61-P-2779-97SAC
ME-SFI [ME] control unit, component description	N3/10	GF07.61-P-6000MAS