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Reference
At a glance
Controls
Driving tips
Mobility
15
Do not run the combustion engine in
enclosed spaces; otherwise, the inhala-
tion of toxic exhaust gases can cause loss of
consciousness and death. The exhaust gases
contain carbon monoxide, an odorless and col-
orless, but highly toxic gas.
Never leave the vehicle unattended with the
combustion engine running; such a vehicle rep-
resents a potential safety hazard.<
Deactivating drive readiness
When drive readiness is switched off, the
tachometer pointer is in the OFF position.
When leaving the vehicle, always take
along the remote control.
Set the parking brake firmly when parking; oth-
erwise, the vehicle could roll.<
After the vehicle is switched off, audible operat-
ing sounds may issue from the hybrid system,
e.g. the cooling of the high-voltage battery.
Procedure
1.Select transmission position P with the
vehicle stationary.
2.Press the Start/Stop button.
3.Set the parking brake.
4.Remove the remote control from the igni-
tion lock.
Before removing the remote control, first
press it in as far as possible to release the
locking device.
Before driving into a car wash
The vehicle can roll if you proceed according to
the following steps:
1.With comfort access
*: insert the remote
control into the ignition lock.
2.Depress brake pedal.
3.Select transmission position N.
4.Release the parking brake or deactivate
Automatic Hold.
5.Press the Start/Stop button to deactivate
drive readiness.
Transmission position P will be selected:
>automatically after approx. 30 minutes>if you remove the remote control from the
ignition lock
Starting to drive
1.Activate drive readiness.
2.Select transmission position D, M/S, or R.
3.Release the parking brake.
4.Start to drive.
Driving
Electric driving: eDRIVE
Requirements
Electric driving is possible under the following
conditions:
>driving speed:
a maximum of approx. 37 mph/60 km/h
>charge state display of the high-voltage
battery: at least 15%
>transmission in position D or R, refer to
page17
>drive system at operating temperature
>accelerator pedal not pressed down too far
>driver's door closed
Possible driving speed
The possible speed that can be reached in elec-
tric driving depends on the charge state of the
high-voltage battery.
>charge state display 15% to 40%:
maximum driving speed is approx. 25 mph/
40 km/h
>charge state display 40% to 100%:
maximum driving speed is approx. 40 mph/
65 km/h
When accelerating past a speed of 25 mph/
40 km/h, the combustion engine is started
briefly in order to assure smooth acceleration.
Indicators of electric driving in the instrument
panel, refer to page22.
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Driving
16
Possible range
The vehicle can travel approx. 1.5 miles/2.5 km
under electric power.
Driving with combustion engine: DRIVE
The combustion engine supplies the drive out-
put for moving the vehicle. The high-voltage
battery is charged at the same time.
Automatic starting while driving
Under the following circumstances, the com-
bustion engine is started automatically while
driving:
>transmission position M/S selected
>driving speed greater than 40 mph/65 km/h
>low charge state or fully charged high-volt-
age battery, e.g. when driving downhill
>to protect the high-voltage system from
overheating, e.g. when driving downhill
>high output request, e.g. by accelerator
pedal position.
Automatic switching off while driving
When decelerating under the conditions for
electric driving, refer to page15, the combus-
tion engine is switched off.
Assisted combustion engine
The combustion engine supplies the main drive
output for moving the vehicle.
The electric motors assist by providing addi-
tional drive output as needed.
eBOOST
When accelerating quickly, e.g. when passing
another vehicle, power from the two electric
motors simultaneously is requested in addition
to that of the combustion engine. To trigger
this, step down hard on the accelerator pedal.
Display in the instrument panel, refer to
page22.
Energy recovery: CHARGE
The hybrid system makes it possible to convert
kinetic energy into electrical current, e.g. during braking. This energy recovery is used to charge
the high-voltage battery. The battery supplies
this stored energy back to the electric motors
as needed.
To recover the braking energy, the following
conditions must be met:
>The vehicle is in motion.
>The selector lever is in the position D, R, or
M/S.
>The high-voltage battery is not completely
charged.
Display of energy recovery in the instrument
panel, refer to page22
Two-Mode Active
Transmission with Steptronic
The Das Two-Mode Active Transmission is an
automatic transmission in which the gears can
be shifted in a fully automatic fashion or can be
shifted manually on demand. The manual shift-
ing is performed using the selector lever or the
shifting paddles of the Steptronic, refer to
page18.
Automatic shifting may be perceptible
when decelerating at a low speed.<
Transmission positions
P R N D M/S + –
Hold the brake pedal down until starting
to drive; otherwise, the vehicle can begin
to roll.<
Displays in instrument panel
P R N D, S1 through S7, M1 through M7
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Reference
At a glance
Controls
Driving tips
Mobility
17
The transmission position and the currently
engaged gear are displayed.
Selecting transmission position
>You can select transmission positions D, R
or N only when drive readiness is activated.
>With the vehicle stationary, depress the
brake pedal before shifting out of P or N;
otherwise the shift command will not be
executed: shiftlock.
Hold the brake pedal down until start-
ing to drive; otherwise, the vehicle can
begin to move.<
Shifting into D, R, N
Briefly press the selector lever in the desired
direction, beyond a resistance point if neces-
sary. When shifting out of P or into R, simulta-
neously push the unlock button1.
The engaged transmission position is displayed
on the selector lever.
The selector lever immediately returns to the
center position when released.
Shifting into P
Press buttonP.When the vehicle is stationary and the
transmission is in the R, D, or M/S posi-
tion, if you disconnect the driver's seat safety
belt and open the driver's door without stepping
on any of the pedals, then the transmission
shifts into position P.<
R Reverse
Select only with the vehicle stationary.
An interlock prevents inadvertent gearshifts
into transmission position R. To release the
lock, push the unlock button1.
During electric driving, please note that
pedestrians and other road users may fail
to notice the vehicle in the usual way due to the
lack of engine noise. For example, proceed with
particular caution when pulling into and out of a
parking space.<
P Park
Select only with the vehicle stationary. The rear
wheels are locked.
The transmission automatically shifts into
P as soon as you switch off the engine.
Unless position N is selected and the remote
control is in the ignition lock.<
N Neutral
Can be selected in automatic car washes, for
example. The vehicle can roll.
The transmission remains in N even after
the engine is switched off whenever you
leave the remote control in the ignition lock.
This function is used, for example, in a car wash,
refer to page15. After approx. 30 minutes P is
automatically engaged.<
Shifting into N
It is possible to select N even when the ignition
is switched on.
I t i s t h u s p o s s i b l e t o m o v e t h e v e h i c l e , e . g . i n t h e
event of a malfunction, even if it is not possible
to activate drive readiness.
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Driving
18
D Drive, automatic position
Position for normal vehicle operation. All for-
ward gears are shifted automatically. Depend-
ing on operating conditions, the vehicle is
driven electrically or with the combustion
engine.
The fuel consumption is the lowest in transmis-
sion position D.
Kick-down
The kick-down mode provides maximum accel-
eration.
Press the accelerator pedal beyond the
increased resistance at full throttle.
Due to the high power requested, the combus-
tion engine is started and is assisted by the
electric motors as needed.
Sport program and manual mode M/S
Press selector lever out of transmission
position D toward the left:
The sport program is activated, S and the
engaged gear are displayed in the instrument
panel. This position is recommended for a per-
formance-oriented driving style.
With the sport program activated, the combus-
tion engine is always started.
When the selector lever is pressed forward or
back, the manual mode is activated and the
Steptronic shifts the gear. For example, M3 is
displayed in the instrument panel.
Upshifts and downshifts are executed only
when they will result in a plausible combination
of engine and vehicle speed; thus, for example,
a downshift that would cause the engine to
overrev will not be executed by the system. The selected gear is briefly displayed in the instru-
ment panel, followed by the current gear.
To use the automatic function again, press the
selector lever to the right into position D.
Changing gears using shifting paddles
on steering wheel
The shifting paddles make it possible to quickly
change gears since both hands can remain on
the steering wheel.
>Upshifting: pull on one of the shifting pad-
dles, arrows +.
>Downshifting: press on one of the shifting
paddles, arrows –.
The gear change using the shifting paddles can
be executed in automatic mode D or in manual
mode M/S.
When the shifting paddles are actuated during
electric driving, the combustion engine starts.
Changing gears in manual mode M/S
With manual mode activated, gear changes are
executed using the shifting paddles or the
selector lever.
With the transmission position M/S selected,
the manual mode remains active.
Changing gears in automatic mode D
Even in automatic mode D, gear shifts can be
executed using the shifting paddles.
The combustion engine starts.
Then if a certa in amount of time pas ses witho ut
a gear change being executed using the shifting
paddles or a corresponding acceleration, then
the transmission returns to automatic shifting
of the forward gears.
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Reference
At a glance
Controls
Driving tips
Mobility
19
Cruise control
The concept
The cruise control is available for use at speeds
of approx. 20 mph/30 km/h. The vehicle stores
and maintains the speed that you set using the
lever mounted on the steering column.
The cruise control can also be activated
during electric driving, eDRIVE. The
cruise control provides a particularly sensitive
adjustment of the electric drive output.<
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 or in poor road conditions
such as snow, rain, ice, and loose road surface.
Otherwise you could lose control of the vehicle
and cause an accident.<
One lever for all functions
1Storing speed and maintaining or increas-
ing
2Storing speed and maintaining or decreas-
ing
3Deactivating cruise control
4Resuming stored speed
Maintaining current speed
Briefly press, arrow1, or briefly pull, arrow2
lever.
The speed currently being driven is stored and
maintained. It is indicated on the speedometer
and briefly in the instrument panel.
If the engine braking effect is not sufficient on
steep downhill slopes, the vehicle may exceed
the set speed.
Increasing speed
Repeatedly press the lever up to or beyond the
resistance point, arrow1, until the desired
speed is set.
>Each time the lever is pressed to the resis-
tance point, the speed is increased by
approx. 1 mph or 1 km/h.
>Each time the lever is pressed beyond the
resistance point, the desired speed
increases by a maximum of 5 mph or
10 km/h.
The system stores the setting and maintains
the set speed.
Accelerating with lever
Accelerate slightly:
Press the lever up to the resistance point,
arrow1, until the desired speed is reached.
Accelerate more rapidly:
Press the lever beyond the resistance point,
arrow1, until the desired speed is reached.
The vehicle accelerates without pressure on
the accelerator pedal. The system stores the
setting and maintains the set speed.
Reducing speed
Repeatedly pull the lever up to the resistance
point or beyond, arrow2, until the desired
speed is displayed.
>Each time the lever is pulled up to the resis-
tance point, the desired speed decreases
by approx. 1 mph or 1 km/h.
>Each time the lever is pulled beyond the
resistance point, the desired speed is
decreased by a maximum of 5 mph or
10 km/h until the minimum speed of
20 mph or 30 km/h is reached.
The system stores the setting and maintains
the set speed.
Deactivating cruise control
Briefly press the lever up or down, arrow3.
The displays in the speedometer go out.
In addition, the system is automatically deacti-
vated:
Page 22 of 54

Driving
20 >when braking
>when transmission position N is engaged
>when DTC is activated or DSC is deacti-
vated
>when HDC is activated
>when the parking brake is set
>when driving stability control systems inter-
vene
Accelerating does not deactivate the cruise
control. After releasing the accelerator pedal,
the stored speed is reached and maintained
again.
Warning lamp
The warning lamp lights up if the
cruise control has been deactivated
automatically, e.g. by a control inter-
vention of the DSC. A message appears on the
Control Display.
Resuming stored speed
Briefly press the button, arrow4. The stored
speed is resumed and maintained.
With the ignition switched off, the stored speed
value is deleted and cannot be resumed again.
Displays in instrument panel
1Stored desired speed
2Selected desired speed appears briefly
If --- mph or --- km/h temporarily appears in the
instrument panel display, it is possible that the
system prerequisites for operation are currently
not met.
Malfunction
The warning lamp lights up if the sys-
tem has failed. A message appears on
the Control Display.
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Reference
At a glance
Controls
Driving tips
Mobility
21
Everything under control
Charge state display
Shows the available charge on a scale from 0 to
1 when drive readiness is switched on. At the
scale value 1, the high-voltage battery is fully
charged. The five segments divide the scale
into ranges of 20% each.
In normal driving operation, the high-voltage
battery is charged to approx. 80%. This permits
the hybrid system to make optimal use of the
energy recovery when decelerating or driving
downhill.
Even at the scale value 0, the hybrid system is
still under high voltage.
Displaying operating modes
Energy flows
In all operating modes of the vehicle, the energy
flows can be displayed on the Control Display.
This gives you an overview of the functioning of
the hybrid system in different driving condi-
tions.
Accessing the energy flow display
1."Vehicle Info"
2."Hybrid"
3.Energy flows are displayed.
The energy flow display functions according to
the following principle:
>Blue: Electrical energy.
>Red: Energy from the combustion engine.
>Arrow: Direction of the energy flow.
>Segments of the high-voltage battery sym-
bolize the charge state.
>The operating modes are displayed: DRIVE,
eDRIVE, CHARGE, eBOOST
Operating by voice activation*
You can also select the "Hybrid" menu using
voice activation.
{Hybrid}.
The menu is selected.
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Everything under control
22
Electric driving: eDRIVE
During electric driving, the power output by the
electric motors is indicated by arrows:
Depending on the position of the accelerator
pedal, up to four arrows light up one after
another.
The tachometer pointer is in the READY posi-
tion.
If all four arrows have already lit up, when addi-
tional drive power is needed, e.g. for accelera-
tion, the combustion engine is switched on.
Assisted combustion engine: eBOOST
At the maximum output from the electric
motors, all four arrows light up simultaneously.
Energy recovery: CHARGE
The energy recovery is indicated in the tachom-
eter as an arrow with the + symbol: The high-
voltage battery is charged.
Fuel gauge
Fuel tank capacity: approx. 22.5 US gal/
85 liters. You will find information on refueling
on page32.
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.<