If the car is a automatic then it sounds as if the linkage is correct!! All of this is to allow extra tension on kickdown cable. The switch you are describing is for decell-shutoff, emission control. There is a white plastic grommet that wears out & creates even more play than designed. Main thing is that at full throttle the throttle plate is completely open!!
MERCEDES BENZ MASTER GUILD TECHNICIAN
ASE MASTER TECHNICIAN
27 YEARS DEALER M.B. Shopforeman
190E 2.3 ITS RACECAR
1986 190E 16V