The speed sensors monitor the rotational speed of the transmission input shaft so that the computer knows how fast the vehicle is going. It contains the transmission control module, which has the speed sensors integrated into the 7G Tronic TCM top. The Mercedes 722.9 conductor plate, sometimes referred to as the 722.9 VGS, is mounted to the transmission’s valve body. What is a Mercedes 722.9 conductor plate and 722.9 TCM? Limp mode (the transmission gets locked into a single forward gear to prevent further damage to the transmission).Extremely harsh upshifts and downshifts.Mercedes 7G Tronic conductor plate problems and 7G Tronic TCM problems prevent the computer from controlling these gears as it needs to, resulting in several symptoms. Four multi-disc brakes and three multi-disc clutches are used to control the gears. The Mercedes 722.9 7G Tronic transmission has seven forward gears and two reverse gears made possible by two planetary gear sets and a Ravigneaux gearset that essentially combines multiple planetary gearsets into a single unit.
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