Mercedes-Benz S 450 4MATIC Operator's Manual page 443

Controls in detail
Automatic transmission
If you are driving in the manual program
mode M, upshift indicator 2 in the multi-
function display advises you to upshift be-
fore the engine reaches the overspeed
range. Thus you can drive at the maximum
engine speed for each gear without over-
revving the engine.
1 Gear indicator
2 Upshift indicator "up"
3 Engine oil temperature
4 Vehicle supply voltage
Shift to the next higher gear.
The fuel supply will otherwise be inter-
rupted to prevent the engine from over-
revving.
442
Downshifting
Warning!
On slippery road surfaces, never downshift
in order to obtain braking action. This could
result in drive wheel slip and reduced
vehicle control. Your vehicle's ABS will not
prevent this type of loss of control.
Briefly pull left shift paddle 1
( page 438).
The transmission shifts to the next
lower gear.
i
When you brake or stop, the transmission
shifts down to a gear from which you can easily
accelerate or drive off.
Kickdown
Using the kickdown when driving in the
G
manual program mode M is not possible.
Deactivating manual shift program
Press the program mode selector
switch ( page 440) repeatedly until
"C" or "S" appears in the multifunction
display.
or
Restart the engine.
The transmission will go to the
automatic program mode (C or S).
The manual program mode M is not
stored.