Pedal value sensor characteristic curve when reversing function - GF30.20-P-4013AM

ENGINE 113.990 in MODEL 211, 219 

ENGINE 113.991 in MODEL 215, 220 

ENGINE 113.992 in MODEL 230 up to Model Year 2008 

ENGINE 113.993 in MODEL 463 up to 31.5.12 

ENGINE 113.995 in MODEL 230 up to Model Year 2008 

Fig 1: Identifying ME Control Unit CAN Communication Diagram

Courtesy of MERCEDES-BENZ USA

A modified characteristic curve of the electronic accelerator (EFP) optimizes ride comfort and safety while reversing.

The reversing action (drive position "R") is indicated by the ETC [EGS] control unit to the motor electronics control unit via the CAN data bus. The ME control unit then uses an altered characteristic to regulate the throttle valve actuator.

Here the throttle valve is opened slowly and the opening angle is limited to maximum 60%.