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Controls in detail
Automatic transmission
Extending gear range
̈ Briefly press right shift button 2.
The transmission will shift to the next
higher gear as permitted by the shift
program. This action simultaneously
extends the gear range of the transmis-
sion.
Canceling gear range limit
̈ Press and hold right shift button 2
until the indicator for the current gear
range disappears from the instrument
cluster (
୴ page 398).
The transmission will shift from the
current gear range directly to gear
range D.
Shifting into optimal gear range
̈ Press and hold left shift button 1.
The transmission will automatically
select the gear range suited for optimal
acceleration and deceleration. This will
involve shifting down one or more
gears.
Emergency operation
(Limp-Home Mode)
If vehicle acceleration becomes less re-
sponsive or sluggish or the transmission
no longer shifts, the transmission is most
likely operating in limp-home (emergency
operation) mode. In this mode only second
gear and reverse gear can be selected.
̈ Stop the vehicle in a safe location.
̈ Shift to park position P.
̈ Turn off the engine.
̈ Wait at least 10 seconds before
restarting.
̈ Restart the engine.
̈ Shift to drive position D (for second
gear) or reverse gear R.
̈ Have the transmission checked at an
authorized Mercedes-Benz Center as
soon as possible.
i
If you press on the accelerator when the en-
gine has reached its rpm limit, the transmission
will upshift beyond any gear range limit selected.