229 Automatic transmission
Te ch n ica l
data Instruments
and controlsOperationDrivingInstrument
cluster displayPractical hints Car care Index Automatic transmissionThe automatic transmission selects individual gears
automatically, dependent upon
•Selector lever position, see page 232
•Program mode selector, see page 236
•Accelerator position
•Vehicle speed
The gear shifting process is continuously adapted,
dependent on the driving style, the driving situation
and the road characteristics.
Important!
When parking the vehicle or before working on the
vehicle with the engine running, firmly depress the
parking brake pedal and shift the selector lever into “P”.
232 Automatic transmission
Te ch n ica l
data Instruments
and controlsOperationDrivingInstrument
cluster displayPractical hints Car care Index
Selector lever position
The current selector lever position is indicated in the
gear range indicator display. The automatic gear
shifting process can be adapted to specific operating
conditions using the selector lever.Park position
The park position is to be used when parking the
vehicle. Engage only with the vehicle stopped.
The park position is not intended to serve as a
brake when the vehicle is parked. Rather, the
driver should always use the parking brake in
addition to placing the selector lever in park to
secure the vehicle.
Note:
The electronic key can only be removed from the
starter switch with the selector lever in
position “P”. With the electronic key removed, the
selector lever is locked in position “P”.
Reverse gear
Shift to reverse gear only with the vehicle
sto p ped .
Dependent on the program mode selector switch
position “S” or “W” the maximum speed in the
reverse gear is different. However, it is not
possible to change the program mode while in
reverse.
236 Automatic transmission
Te ch n ica l
data Instruments
and controlsOperationDrivingInstrument
cluster displayPractical hints Car care Index
Program mode selector switch
The transmission is provided with a selector switch (1)
for Standard “S” and Winter/Wet (snow and ice) “W”
program modes.
The program mode currently selected is indicated in the
gear range indicator display.SStandard mode
Press switch on symbol “S”. Use this mode for all
regular driving.
The vehicle starts out in 1st gear.
Accelerator Operation:
Fa st o n = d e p re s s i ng t h e a c c e l e r a to r p e d a l q u i ck ly
(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.
237 Automatic transmission
Te ch n ica l
data Instruments
and controlsOperationDrivingInstrument
cluster displayPractical hints Car care Index WWinter/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.
Caution!
Never change the program mode when the selector lever
is out of position “P”. It could result in a change of
driving characteristics for which you may not be
prepared.
Important!
Always be certain of the program mode selected since
the vehicle driving characteristics change with the
selection of the program mode.
Dependent on the program mode selector switch
position “S” or “W” and the gear selector lever in
position “R”, 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 of 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 approx. 10 seconds.
5. Restart the engine.
6. Move sel ector 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 Center as soon as possible.
258 Driving systems
Te ch n ica l
data Instruments
and controlsOperationDrivingInstrument
cluster displayPractical hints Car care Index
Deactivation of Distronic
Briefly move the distronic control lever in “OFF”
direction (3) – the stored speed remains in the memory
until the electronic key in the starter switch is turned to
position 1 or 0.
Distronic is also deactivated if:
•the service brake pedal is depressed,
•the parking brake is activated,
•the vehicle decelerates to less than approximately
25 mph (Canada: 30 km/h), e.g. while maintaining
the distance to the vehicle ahead.•the gear selector lever is moved to position “N”,
•the electronic stability program (ESP) is active,
•the electronic stability program (ESP) is switched off
manually,
•Model CL 55 AMG only:
the vehicle speed exceeds approximately 160 mph
(260 km/h).
Note:
A signal sounds and the message “DTR OFF” appears
for 5 seconds in the multifunction display everytime
Distronic is deactivated.
Wa r n i n g !
The Distronic switches off and releases the brakes
when the vehicle decelerates below the minimum
speed of 25 mph (Canada: 30 km/h) by operation of
the system. At that time, the driver must apply the
brakes in order to reduce vehicle speed further or
bring it to a stop.
402 Index
Te ch n ica l
data Instruments
and controlsOperation DrivingInstrument
cluster displayPractical hints Car careIndex
Residual engine heat utilization ............................ 174
Special settings ......................................................... 169
Switching on and off ................................................ 175
Windows fogged on the inside ................................ 170
Windows fogged on the outside .............................. 171
Automatic transmission ...............................................229
Emergency operation ...............................................237
Fluid level ...................................................................332
Program mode selector switch ...............................236
Selector lever position ..............................................232
BBabySmart
TM airbag deactivation system ..................... 88
Self-test ......................................................................... 89
Backrest ............................................................................. 72
BAS (Brake assist system) ............................................268
Battery .............................................................................346
Battery recycling .......................................................348
BATTERY/ALTERNATOR -
malfunction and warning messages ......................299
Block heater ....................................................................249
BRAKE ASSIST - malfunction
and warning messages ............................................300
Brake assist system (BAS) ............................................268Brake fluid ...........................................240, 292, 393, 395
BRAKE FLUID -
malfunction and warning messages ......................301
BRAKE LINING WEAR -
malfunction and warning messages ......................301
Brake pad wear ...............................................................301
Brake warning lamp ..................................................... 292
Brake fluid low ......................................................... 292
Brakes ...................................................238, 240, 268, 272
CCapacities
Fuels, coolants, lubricants etc. .............................. 393
Card, KEYLESS-GO ..........................................................28
Cargo tie-down hooks ................................................... 200
Catalytic converter ........................................................ 220
Center console .................................................................. 24
Center console lighting ................................................. 185
Central locking switch .................................................... 50
Central locking system .................................................... 34
Automatic central locking .........................................52
Central locking switch ............................................... 50
Choosing global or selective mode .....................37, 43
Electronic main key .................................................... 29