Driving
56
Radio readiness and ignition switched
off
All indicator and warning lamps in the instru-
ment cluster go out.
Starting engine
Do not run the engine in closed rooms,
otherwise the inhalation of toxic exhaust
gases can cause unconsciousness and death.
The exhaust gases contain carbon monoxide,
an odorless and colorless, but highly toxic gas.
Never leave an unattended vehicle with the
engine running, as such a vehicle represents a
potential safety hazard.
Before leaving the vehicle with the engine run-
ning, shift into neutral
* or move the selector
lever into the N position and set the handbrake,
otherwise the vehicle can begin to roll.<
When starting the engine, do not press the
accelerator pedal.
Do not allow the engine to warm up by leaving it
running while the vehicle remains stationary.
Instead, begin to drive at a moderate engine
speed.
Do not press either the brake or the
clutch
* pedal as long as you do not want
to start the engine. The engine starts when you
briefly press the Start/Stop button while
depressing the clutch pedal on vehicles with a
manual transmission
*.<
Manual transmission*
1.Apply the handbrake.
2.Depress the clutch pedal and select the
idling position.
3.Briefly press the Start/Stop button.
The system responds by automatically engag-
ing the starter for a certain period and automat-
ically disengaging it as soon as the engine
starts.
Sequential Manual Transmission with
Drivelogic
1.Depress brake pedal.
2.Place selector lever in position N.
3.Briefly press the Start/Stop button.
The system responds by automatically engag-
ing the starter for a certain period and automat-
ically disengaging it as soon as the engine
starts.
If the engine does not start, shift back to
the last selector lever position selected,
refer to the instrument cluster display or the
selector lever. Then select position N.
You cannot start off with the hood open.
When the engine is cold, the exhaust system
has a slightly metallic undertone due to the sys-
tem design.<
Avoid frequent starting in quick succes-
sion or repeated starting attempts in
which the engine does not start. Otherwise, the
fuel is not burned or inadequately burned and
there is a danger of overheating and damaging
the catalytic converter.<
Special starting conditions
Depress the accelerator pedal half way when
starting the engine in the following situations:
>The engine fails to start on the first attempt,
e.g. if it is very hot or cold.
>The engine is started at very low tempera-
tures, below approx. + 57/– 156, at high
altitudes, over approx. 3,300 ft/1,000 m.
Driving
58
Reverse gear
Select only when the vehicle is stationary.
When pressing the gearshift lever to the left,
overcome some resistance.
Shift lights
To achieve the best vehicle acceleration with a
sporty driving style, shift lights in the Head-Up
Display
* indicate the optimum shifting point
briefly before reaching the maximum rpm. Refer
to Shift lights, page60.
Sequential Manual
Transmission with Drivelogic
The concept
The SMG Sequential Manual Transmission
with Drivelogic is an automated manual trans-
mission in which an electrohydraulic system
handles the clutching and gear changes.
The Sequential Manual Transmission is oper-
ated with the selector lever and two shift pad-
dles on the steering wheel.
It offers you the following functions:
>Optional manual or automatic operation:
Sequential mode or Drive mode
>Selection option between different driving
programs, Drivelogic, refer to page60
>Upshift display, shift lights, refer to page60
>Automatic downshifting and prevention of
incorrect shifting even in Sequential opera-
tion
>Automatic double clutching
Selector lever positions
>R: Reverse gear
>N: Neutral
>Β: Drive position:
>+: manual upshifting
>–: manual downshifting
>D/S: switch between Drive mode and
Sequential mode
Shiftlock
Press the brake pedal before shifting out of N;
the shift command will not be executed unless
the brake is applied.
R Reverse
Select only when the vehicle is stationary.
N Idle
Always engage before starting engine.
If the driving situation requires, e.g. when down-
shifting on a slippery road surface, the Sequen-
tial Manual Transmission automatically
clutches and then declutches again, i.e. it is not
necessary to engage idling manually.
N is automatically engaged after just a
few seconds when you open the driver's
door or the hood with the engine running and do
not operate either pedals, shift paddles or the
selector lever. In these cases, to start off after
closing the driver's door or the hood, first move
the selector lever into position N and then into
the drive position.<
Controls
59Reference
At a glance
Driving tips
Communications
Navigation
Entertainment
Mobility
S Sequential mode
You can shift up and down using the shift pad-
dles or the selector lever. You do not need to
remove your foot from the accelerator to do so.
After every engine start, as soon as the selector
lever is pushed to the right into the drive posi-
tionΒ and the brake pedal is pressed, the
Sequential mode is activated.
Starting off is also possible on a level road sur-
face in second gear, e.g. in case of ice.
In the following situations, the Sequential Man-
ual Transmission thinks for you:
>Upshifts and downshifts are executed only
when they will result in a plausible combina-
tion of engine and vehicle speed; thus, for
example, a downshift that would cause the
engine to overrev will not be executed by
the system.
>When the vehicle is stationary, the trans-
mission automatically downshifts into first
gear.
>Shortly before dropping below a gear-
dependent minimum speed, the transmis-
sion downshifts automatically even without
your intervention.
D Drive mode
In the Drive mode, all forward gears are shifted
automatically.
Shifting from Sequential mode to Drive mode:
press selector lever to the right toward D/S.
To switch back into the Sequential mode: press
selector lever to the right again toward D/S or
shift using the shift paddles or the selector
lever.
Kick-down: for rapid acceleration, e. g. when
passing, press the accelerator pedal as far
down as it will go. You achieve maximum accel-
eration.
Displays in instrument cluster
1Gear 1 to 7, R, N engaged
2Selected driving program,
matches the number of illuminated fields,
refer to Drivelogic on page60
3The currently engaged gear is displayed,
followed by a D in the Drive mode
A flashing gear display indicates to you
that the driver's door is open with the
engine running.
N is automatically engaged after just a few sec-
onds when you open the driver's door or the
hood with the engine running and the vehicle
stopped, and do not operate either pedals, shift
paddles or the selector lever.<
Gear changes
Using selector lever
>To upshift, pull the selector lever back.
>To downshift, push the selector lever for-
ward.
Using shift paddles on steering wheel
>To upshift, briefly pull the right shift
paddle +.
Driving
60 >To downshift, briefly pull the left shift
paddle –.
Drivelogic
With Drivelogic various driving programs are
available to you.
Each time you change between the Sequential
mode and the Drive mode, the driving program
last selected in the respective mode is active.
Exception: after the first change from the
Sequential to the Drive mode, driving program 3
is active.
In Drive mode
Five driving programs, from relaxed 1 to sporty/
highly dynamic 5 are available for selection.
In Sequential mode
You can choose from six driving programs from
balanced/dynamic 1 to sporty/purist 6.
Each time the engine is started, driving pro-
gram 3 is activated.
The sporty/purist driving program 6 is only
available with the DSC Dynamic Stability Con-
trol deactivated, refer to page80. When DSC is
activated, the system switches from driving
program 6 to 5.
To maintain vehicle stability, always drive
with the DSC switched on when possi-
ble.<
Selecting driving program with button
in center console
Press the button repeatedly until the desired
driving program is displayed in the instrument
cluster, refer to page59.
Selecting driving program via button
on steering wheel
You can also activate your preferred driving pro-
gram with the button on the steering wheel,
refer to MDrive on page50.
With the ignition switched on you can change
the settings of MDrive on the Control Display.
iDrive, for explanation of principle, refer to
page16.
1.Open the start menu.
2.Press the controller to open the menu.
3.Select "Settings" and press the controller.
4.Select "Vehicle / Tires" and press the con-
troller.
5.Change to upper field if necessary. Turn the
controller until "MDrive" is selected and
press the controller.
6.Select "SMG Drivelogic" and press the con-
troller. The first setting is selected.
7.Turn controller to set Drive mode or
Sequential mode.
"Unchanged" retains the current settings
made outside of MDrive.
8.Press controller to select driving programs.
9.Turn controller to set driving program.
10.Press the controller.
Shift lights
To achieve the best vehicle acceleration with a
sporty driving style in the Sequential mode,
shift lights in the Head-Up Display
* indicate the
optimum shifting point briefly before reaching
the maximum rpm.
Controls
61Reference
At a glance
Driving tips
Communications
Navigation
Entertainment
Mobility
1.Switch on Head-Up Display, refer to Head-
Up Display on page88.
2.Select display "M View" on Head-Up Dis-
play, refer to Selecting displays on page89.
The current engine speed is highlighted on
the tachometer.
3.When approaching the maximum rpm, yel-
low illuminated fields1 of the tachometer
consecutively indicate the approaching
upshift point.
4.Shift at the latest when the red indicator
field lights up2.
When the permissible maximum rpm is
reached, the entire tachometer begins to flash.
When the maximum rpm is exceeded, the fuel
supply is cut off to protect the engine. Always
avoid engine speeds in this range.
M Engine Dynamic Control
With M Engine Dynamic Control you can influ-
ence how sporty the reaction of your vehicle to
accelerator pedal movements is to be. Three
programs are available for engine control.
"P 400" program
In the "P 400" program the engine reacts gently
to the movement of the accelerator pedal. This
is, for example, ideal for city driving or driving on
snow. In the process, the fuel consumption is
minimal and the engine output is reduced.
"P 500" program
The "P 500" program provides maximum per-
formance and more spontaneous reaction of
the engine to accelerator pedal movements.
"P 500 Sport" program
In the "P 500 Sport" program the engine reacts
especially spontaneously and uncompromis-
ingly sporty with maximum performance to
accelerator pedal movements.
Selecting program
Sequential Manual Transmission with
Drivelogic
Each time the engine is started, the "P 400"
program is activated.
Press the POWER button to activate the
"P 500" program. Pressing the POWER button
repeatedly switches between the programs
"P 400" and "P 500".
You can also activate your preferred program
with the button on the steering wheel, refer
to MDrive on page50. You can only activate the
"P 500 Sport" program with MDrive.
For the programs "P 500" and "P 500 Sport"
the LED in the POWER button lights up.
Manual transmission
Each time the engine is started, the "P 400"
program is activated.
You can select the programs "P 400", "P 500"
and "P 500 Sport" with the button on the steer-
ing wheel, refer to MDrive on page50.
Driving
64
Cruise control
The concept
The cruise control is available for use at speeds
of approx. 20 mph/30 km/h and higher. The
vehicle stores and maintains the speed that you
set using the lever mounted on the steering col-
umn.
Do not use the cruise control under driv-
ing conditions that do not permit a con-
stant speed, e.g. when driving on winding
roads , in heavy traffic o r in poor roa d co nditions
such as snow, rain, ice, and loose road surface.
Otherwise you could loose control of the vehi-
cle and cause an accident.<
One lever for all functions
1Maintaining speed, storing speed, and
accelerating
2Maintaining speed, storing speed, and
decelerating
3Interrupting cruise control
4Resuming stored speed
Maintaining speed, storing speed,
and accelerating
Press lever to resistance point, arrow 1:
The speed currently being driven is maintained
and stored. The display1 in the speedometer,
see below, indicates this regulated speed.
Every time you press the lever, the vehicle's
speed increases by roughly 1 mph/1 km/h.
Press lever to resistance point for a longer time:
The vehicle accelerates without pressure on
the accelerator pedal. The system maintains
and stores your current speed as soon as you
release the lever.Press the lever beyond the resistance point:
Increase speed each time to the next fives place
on the mph speedometer or to the next tens
place on the km/h speedometer.
If, on a downhill grade, the engine's braking
effect is not sufficient, the controlled speed can
be exceeded. Speed can drop on uphill grades if
the engine output is insufficient.
Maintaining speed, storing speed, and
decelerating
Pull the lever, arrow2:
Functions are the same as1, only the vehicle
speed is reduced.
Interrupting cruise control
Press the lever up or down, arrow3.
In addition, cruise control is automatically deac-
tivated:
>When the brakes are applied
>For manual shifting with the shift paddles or
the selector lever
>When the DSC comes on
Resuming stored speed
Press button4:
The stored speed is resumed and maintained.
Deactivating system
When the ignition is switched off, the system is
deactivated and the stored speed is deleted.
Displays in instrument cluster
1Stored desired speed
2Selected desired speed appears briefly
Everything under control
66
Everything under control
Odometer, outside
temperature display, clock
1Time, outside temperature, refer to Com-
puter on page67
2Odometer and trip odometer
3Press button:
>with ignition switched on, trip odometer
is reset
>with ignition switched off, odometer is
briefly displayed
Tachometer
The advance warning field, arrow1, and the red
warning field, arrow2, change depending on
the engine temperature. As the engine temper-
ature rises, the permissible engine speed also
increases. Avoid allowing the engine speed to
rise as far as the orange warning field whenever
possible.
Be sure to avoid engine speeds in the red warn-
ing field. In this range, the fuel supply is inter-
rupted to protect the engine.
Coolant temperature
Should the coolant, and with it the engine
become too hot, a warning lamp lights up. In
addition, a message appears on the Control
Display.
Checking coolant level, refer to page202.
Controls
67Reference
At a glance
Driving tips
Communications
Navigation
Entertainment
Mobility
Engine oil thermometer
The general operating temperature lies
between 1757/806 and 2507/1206. Do
not exceed a value of approx. 2657/1306.
If the engine oil temperature is too high, the per-
missible engine speed, and with it the available
engine output is reduced.
Fuel gauge
Fuel tank capacity: approx. 18.5 gallons/
70 liters. You will find information on refueling
on page192.
If the tilt of the vehicle varies for a longer period,
when you are driving in mountainous areas, for
example, the indicator may fluctuate slightly.
Reserve
After the reserve quantity has been reached, a
message briefly appears on the Control Display;
the remaining range is shown in the computer.
Below a range of approx. 30 miles/50 km, the
message remains on the Control Display.
Refuel as soon as possible once your
cruising range falls below 30 miles/
50 km, otherwise engine functions are not
ensured and damage can occur.<
Computer
Displays in instrument cluster
To display the information, press the BC button
on the turn signal lever.
The following information is displayed in the
specified order:
>Time and outside temperature
>Cruising range
>Average fuel consumption
>Oil level, refer to Checking engine oil level
on page200
Manual transmission:
The cruising range, average fuel con-
sumption and oil level are shown in the lower
display in place of the gear indicator.
It is possible to change between the time and
data display by pressing the CHECK button.<
Time
Setting the time, refer to page74.
Outside temperature warning
If the display drops to +377/+36, a signal
sounds and a warning lamp lights up. A mes-
sage appears on the Control Display. There is
an increased danger of ice.
Even at temperatures above +377/
+36 ice can form. Therefore, drive care-
fully, e.g. on bridges and sections of road in the
shade, otherwise there is an increased accident
risk.<
You can set the unit of measure 7 or 6 on the
Control Display, refer to Units of measure on
page76.