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Program Mode Selector Switch
The transmission is provided with a selector switch for Standard "S" and Winter/Wet (snow and ice) "W" program
modes.
Important !
Always be certain of the program mode selected since the vehicle driving characteristics change with the selection of
the program mode.
S - Standard mode Press switch on symbol "S". Use this mode for all regular driving. The vehicle starts out in 1st
gear.
Accelerator Operation:
Fast on = depressing the accelerator pedal quickly (not into kickdown position) while driving continuously, rather
than depressing the accelerator pedal in the usual manner, will cause the automatic transmission to shift down
into a lower gear.
This gear shifting process is dependent on the current vehicle speed.
Fast off = there will be no upshift when releasing the accelerator pedal quickly, e.g. using the engine's braking
power during performance driving
W - Winter/Wet (snow and ice) mode Press switch on symbol "W".
The vehicle starts out in 2nd gear, except with selector lever in 1st gear, or with accelerator pedal in kick-down
position. The "W" mode helps to improve traction and driving stability of the vehicle.
The gear shifting process occurs at lower vehicle and engine speeds than in the "S,' program mode.
Important
Dependent on the program mode selector switch position "S" or "W" and the gear selector lever in position "13", the
ratio of power transmission changes.
Emergency Operation (Limp Home Mode)
If vehicle acceleration worsens, or the transmission no longer shifts, the transmission is most likely operating in Limp
Home Mode which engages when there is a malfunction at the transmission. This condition may be accompanied by
the "CHECK ENGINE" malfunction indicator lamp in the instrument cluster coming on.
In this mode only the 2nd gear or reverse gear can be activated.
To engage 2nd gear or reverse:
1. Stop the vehicle.
2. Move selector lever to position "P".
3. Turn off the engine.
4. Wait 10 seconds.
5. Restart the engine.
6. Move selector lever to position "D" (for 2nd gear), or move selector lever
to position "R" (for reverse gear).
Have the transmission checked at your authorized Mercedes-Benz dealer as soon as possible.