Mercedes-Benz E-Class Owner's Manual page 196

Automatic transmission
194
the transmission selects the optimum gear
for the current speed.
Kickdown
You can also use kickdown for maximum
acceleration in manual drive program M.
X
Depress the accelerator pedal beyond the
pressure point.
The transmission shifts to a lower gear
depending on the engine speed.
i
AMG vehicles: it is not possible to use
kickdown in manual drive program M.
Deactivating the manual drive program
X
Press the program selector button
( Y page 190) repeatedly until E or S
appears in the multifunction display.
X
AMG vehicles: turn the drive program
selector ( Y page 190) until C, S or S+
appears in the multifunction display.