Automated manual
transmission
Description
Applies to vehicles: with R tro nic
Fig. 89 Shift pattern
Fig. 90 Display: Gears engaged
R tronic is an au t omated manua l transm iss ion
in which the function of the clutch and shift-
ing is controlled by an electronic system.
The gears are engaged manua lly, sim ilarly to
a manual transmission. The gears ca n also be
shifted automatica lly. The engine can be
started and switched off in all gears .
The selected mode of operation, the gear en-
gaged and the spor t funct ion are shown in the
Driver Information Syst em display ¢
fig. 90.
M · Manual operation
In th is operating mode, you shift the forward
gears us ing the selecto r lever ¢ page 86 or
the shift paddles on the multifunction steer-
ing whee l
¢ page 87.
A - Automati c operation
In th is operating mode, the forward gears are
shifted up or down depending on engine load
and vehicle speed ¢ page 87 .
Autom a ted manual tr a n sm iss ion 85
R - Reverse gear
Reverse gear must only be engaged when the
vehicle is
stationary and the engine is running
at idle speed
~
,1..
To engage reverse gear, you have to press the
brake pedal, move the selec t or lever to the
right and tip it towards R. In reverse gear, the
back up lights illuminate when the ignition is
on .
N - Neutral
To engage neu t ral, you have to move these-
lector lever to the left or to the right .
If re-
verse gear is engaged, move the selector lever
to the left . If a forward gear is engaged , move
the selector lever to the right.
Sport function
The sport function is sw itched on by pressing
the
I SPORT I button. The engine's power re-
serves can be used fully by upshifts later. Shift
t ime is decreased and acce lerator pedal re-
sponse is improved . In addition, in manua l op-
eration the eng ine does
not sh ift a utomat ical-
ly into the next gear before it has reached the
maximum perm iss ible engine speed . In auto -
matic operat ion, upsh ifting cont inues auto-
matically .
_&. WARNING
- If a gear is engaged when the veh icle is
stat ionary, the accelera to r must not be
pressed inadvertent ly under any circum -
stances . Otherwise the vehicle will im-
mediately start to move· sometimes
even if the park ing brake is firmly ap-
plied.
- Before you or other persons open the en -
gine compartment lid and work on a run-
ning engine, select neutral pos ition N
a nd firmly app ly the handbrake . Follow
the warning notes.
(!} Tips
If you accidenta lly shifted into N while
driving, you can engage a gear in the nor-
mal way us ing the selecto r lever.
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