I don't remember each cars specific adjustment. You will have to follow the cable to where it meets the throttle linkage. I think yours will have a 13mm wrench size plastic nut where the cable housing is attached. You should unscrew it to make the housing longer and the shifts later.
Since you seem to have the original problem improved I probably would suggest making the shift later. This will improve your downshifts also (allowing them at higher speeds).
Bosch Master, ASE Master, L1
33 years MB technician