The maximum acceleration at the Mercedes E-Class (W211) at the Mercedes E-Class (W211) means that the reduced transmission (Kick-down) is activated, including the manual gearshift programme "M". Until you refuse to do so, press the gas pedal to overcome the resistance point. The automatic gearbox will be switched depending on the engine speed to a lower gear.
Switching the "kiq-down" mode with the help of the bridesmgt switches is temporarily blocked. In vehicles with AMG engines, it is not possible to use the "Kick-down" system in manual gearshift mode.