Transmission position P with the ignition
off
When the ignition is switched off, position P is
engaged automatically. When in an automatic
car wash, for example, ensure that the ignition is
not switched off accidentally.◀
The ignition is switched off automatically in the
following situations while the vehicle is station‐
ary and the engine is off:▷When locking the vehicle, and when the low
beams are activated.▷Shortly before the battery is discharged
completely, so that the engine can still be
started. This function is only available when
the low beams are switched off.▷When opening and closing the driver door, if
the driver's seat belt is unbuckled and the
low beams are switched off.▷While the driver's seat belt is unbuckled, if
the driver's door is open and the low beams
are switched off.
When the ignition is switched off, by opening or
closing the driver's door or unbuckling the driv‐
er's seat belt, the radio ready state remains ac‐
tive.
Drive readiness
When drive readiness is activated, the vehicle is
operational. Activated drive readiness is the
equivalent of a running engine in conventional
vehicles. Deactivated engine readiness is equiv‐
alent to switching the ignition off.
The following are the different drive readiness
variants:
▷Electric driving, refer to page 69:
The combustion engine is not switched on.▷Driving with the combustion engine, refer to
page 69:
The vehicle is powered by the combustion
engine.Drive readiness in detail
General information Do not leave the vehicle unattended
Do not leave the vehicle unattended with
drive readiness active; otherwise, it presents a
potential source of danger.◀
Activating drive readiness1.Close the driver's door.2.Depress the brake pedal.3.Press the Start/Stop button.
Drive readiness is activated:
▷Starting the combustion engine or▷Electric drive readiness, Silent Start.
Electric drive readiness, Silent Start
The vehicle is ready for driving without starting
the combustion engine.
Silent Start is possible after activating radio
ready state if the conditions for electric driving,
refer to page 69, have been met.
Display The READY display indicates
that the vehicle is ready for driv‐
ing.
Awareness of vehicle reduced when
driven in electric mode
When driving in electric mode, note that due to
the lack of engine noise pedestrians and other
road users will not be as aware of the vehicle as
they usually would with a conventional engine.
For instance, pay particular attention when ma‐
neuvering into and out of a parking space.◀
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Starting the combustion engineEnclosed areas
Do not let the engine run in enclosed
areas; otherwise, breathing of exhaust fumes
may lead to loss of consciousness and death.
The exhaust gases contain carbon monoxide, an
odorless and colorless but highly toxic gas.◀
Unattended vehicle
Do not leave the vehicle unattended with
the engine running; doing so poses a risk of dan‐
ger.
Before leaving the vehicle with the engine run‐
ning, set the parking brake and place the trans‐
mission in position P or neutral to prevent the
vehicle from moving.◀
Repeated starting in quick succession
Avoid repeated unsuccessful attempts to
start the vehicle or starting the vehicle several
times in quick succession. Otherwise, the fuel is
not burned or is inadequately burned, posing a
risk of overheating and damage to the catalytic
converter.◀
The combustion engine is started with Activate
drive, refer to page 67, readiness under the fol‐
lowing conditions:▷The drive system is not at operating tem‐
perature.▷The temperature of the hybrid system is too
high.▷The high-voltage battery has an insufficient
charge.
Driving away
1.Activate drive readiness.2.Select transmission position D, M/S or R.3.Release the parking brake.4.Drive away.Deactivating drive readiness
After parking the vehicle, you may hear noises
due to operation of the hybrid system, such as
for cooling of the high-voltage battery.
After stopping the vehicle:1.Select transmission position P.2.Press the Start/Stop button.3.Set the parking brake.
Before driving into a car wash
In order for the vehicle to be able to roll into a car
wash, heed the information regarding Washing
in automatic car washes, refer to page 204.
Auto Start/Stop function
The concept
The Auto Start/Stop function helps save fuel.
The system switches off the combustion engine
when conditions for electric driving, refer to
page 69, have been met. The ignition remains
switched on.
The tachometer registers 0 rpm. If necessary,
the combustion engine starts automatically.
The combustion engine is also stopped during
the trip when braking or coasting. This driving
condition, in which the vehicle is traveling with‐
out power and energy recovery is not active, is
referred to as coasting, refer to page 69.
Note
The combustion engine is not switched off au‐
tomatically in the following situations:
▷The combustion engine is not yet at oper‐
ating temperature.▷The transmission selector lever is in position
M/S.▷The high-voltage battery charge is very low
or there is a high load on the vehicle electri‐
cal system, for instance due to a high load
from automatic climate control.Seite 68ControlsDriving68
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▷The interior is in the heating or cooling
phase.▷The engine compartment lid is unlocked.▷The vehicle is being optimized for the cur‐
rent driving style, for instance during the
breaking-in period or after a service appoint‐
ment.▷There are hybrid system faults.
Safety mode
The combustion engine does not start automat‐
ically in the following situations after an auto‐
matic engine stop:
▷When the driver's door is open and neither
the brake nor accelerator pedal are de‐
pressed.▷When the hood is unlocked.
The indicator lamps come on. The combustion
engine can only be started via the Start/Stop
button.
Switching off the vehicle during an
automatic engine stop
During an automatic engine stop, the vehicle
can be switched off permanently, e.g., when
leaving it.
1.Press the Start/Stop button. The ignition is
switched off. The Auto Start/Stop function
is deactivated.
Transmission position P is engaged auto‐
matically.2.Set the parking brake.
Malfunction
The Auto Start/Stop function no longer
switches of the engine automatically in the event
of a malfunction. A message is displayed. It is
possible to continue driving. Have the system
checked.
Electric driving: eDRIVE
Requirements
Electric driving is possible under the following
conditions:▷Speed up to approx. 35 mph, approx.
60 km/h.▷The high-voltage battery is sufficiently
charged.▷Transmission position D or R is engaged.▷The drive system is at operating tempera‐
ture.▷The accelerator pedal is only slightly de‐
pressed.▷The driver's door is closed.
Possible cruising range
Depending on the charge of the high-voltage
battery, the vehicle can be driven using electric
power constantly for up to 2-2.5 miles/3-4 km.
Coasting
Under the conditions for electric driving, the
combustion engine is also switched off during
braking above 50 mph, approx. 80 km/h or when
coasting above 35 mph, approx. 60 km/h.
This driving condition is referred to as coasting.
In ECO PRO mode, it is possible to coast below
a speed of 100 mph, approx. 160 km/h.
Driving with the combustion
engine: DRIVE
The combustion engine provides the drive
power to move the vehicle. If necessary, the
high-voltage battery is charged at the same
time.
Automatic start while driving
The combustion engine is automatically started
under the following conditions while driving:
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Engaging P
Press button P.
Sport program DS and manual mode M/
S
Activating the sport program
Push the selector lever to the left out of trans‐
mission position D.
DS is displayed in the instrument cluster.
The sport program of the transmission is acti‐
vated.
EDRIVE electric driving and the Auto Start Stop
function are deactivated. Coasting to a standstill
and braking phases will be used more often to
recover energy. The high voltage battery will be
charged more quickly.
Activating the M/S manual mode
1.Push the selector lever to the left out of
transmission position D.2.Push the selector lever forward or backward.
Manual mode becomes active and the gear is
changed.
The engaged gear is displayed in the instrument
cluster, e.g., M1.
Once maximum engine speed is attained, M/S
manual mode is automatically upshifted as
needed.
Switching to manual mode▷To shift down: press the selector lever for‐
ward.▷To shift up: pull the selector lever rearwards.
Gears will only be shifted at appropriate engine
and road speeds, e.g., downshifting is not pos‐
sible if the engine speed is too high.
The selected gear is briefly displayed in the in‐
strument cluster, followed by the current gear.
Sport automatic transmissions:
prevent automatic upshifting in M/S
manual mode
For vehicles with Sport automatic transmis‐
sions, automatic shift operations are not per‐
formed, at maximum engine speed for example,
if one of the following conditions is met:
▷DSC deactivated.▷TRACTION activated.▷SPORT+ activated.
In addition, the kickdown is deactivated.
Once maximum engine speed is attained, up‐
shifting is not automatically performed in M/S
manual mode.
In addition, the kickdown is deactivated.
The lowest possible gear is selected by simul‐
taneously operating the kickdown and the left
shift paddle.
However, this effect is not produced via the shift
paddles when switching briefly from transmis‐
sion position D to manual mode.
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DateThe date is displayed in the in‐
strument cluster.
Setting the date and date format,
refer to page 92.
Range After the reserve range is
reached:▷A Check Control message is
displayed briefly.▷The remaining range is
shown on the onboard com‐
puter.▷When a dynamic driving style is used, such
as when cornering quickly, operation of the
engine is not always ensured.
The Check Control message appears continu‐
ously below a range of approx. 30 miles/50 km.
Refuel promptly
Refuel no later than at a range of
30 miles/50 km, or operation of the engine is not
ensured and damage may occur.◀
Displaying the cruising range
1."Settings"2."Info display"3."Additional indicators"
The range is displayed in the instrument cluster.
Displays of the hybrid system
Displays in the instrument cluster
The concept
The display depends on the system's operating
condition. The following functions of the hybrid
system are shown in the instrument cluster.
▷High-voltage battery charge indicator.▷Electric driving: eDRIVE.▷Acceleration boost: ASSIST and eBOOST.▷Energy recovery: CHARGE.▷Auto Start/Stop function: READY.
High-voltage battery charge indicator
When driving readiness is switched on in COM‐
FORT mode, displays the available charge of the
high-voltage battery with bars in a battery sym‐
bol. If five bars are shown, the high-voltage bat‐
tery is fully charged.
During normal vehicle operation, the high-volt‐
age battery is charged up to approx. 80 %. This
ensures optimum energy recovery when decel‐
erating or driving downhill.
Even if no bars are displayed in the battery sym‐
bol, the hybrid system is still under high voltage.
Electric driving: eDRIVE
When driving with electric power, the power out‐
put of the electric motor is indicated by arrows
on the instrument cluster.
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Depending on the position of the accelerator
pedal, up to four arrows are displayed simulta‐
neously. The tachometer pointer stays on 0 rpm.
If all four arrows are already displayed and addi‐
tional power is required, such as for accelera‐
tion, the combustion engine switches on.
Acceleration boost: eBOOST
eBOOST: when the electric motor is delivering
maximum output, eBOOST is displayed.
Energy recovery: CHARGE
The energy recovered is indicated in the instru‐
ment cluster: in COMFORT mode by arrows and
in ECO PRO mode by a bar below the CHARGE
display. The high voltage battery is being
charged.
Auto Start/Stop function: READY The READY display indicates
that the vehicle is ready for driv‐
ing.
Indications on the Control Display
Displaying the hybrid system
utilization1."Vehicle Info"2."Hybrid"3. "Hybrid usage"
Hybrid system utilization
Gray bars show the combustion engine fuel con‐
sumption, arrow 1. Blue bars show the percent‐
age of hybrid system functions utilized, arrow 2.
One bar stands for one minute.
The combustion engine's average fuel con‐
sumption is indicated by a line above the bar
display and as a value to the right of the graph.
Displaying the energy flow
1."Vehicle Info"2."Hybrid"3. "Energy flow"
Energy flow of the hybrid system
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One wheel is yellow
A flat tire or major drop in inflation pressure in
the indicated tire.
All wheels are yellow
A flat tire or major drop in inflation pressure in
several tires.
Wheels, gray
The system cannot detect a flat tire. Reasons for
this may be:▷The system is being reset.▷Malfunction.
For Canadian models: Additional
information
The status display additionally shows the cur‐
rent tire inflation pressures and tire tempera‐
tures. The values shown are current measure‐
ment values and may vary depending on driving
style or weather conditions.
Carry out reset
Reset the system after each correction of the
tire inflation pressure and after every tire or
wheel change.
1."Vehicle Info"2."Vehicle status"3. "Reset"4.Start the engine - do not drive away.5.Carry out the reset with "Reset".6.Drive away.
The tires are shown in gray and the status is dis‐
played.
After driving faster than 19 mph/30 km/h for a
short period, the tire inflation pressures set are
accepted as reference values. The reset is com‐
pleted automatically during driving. After suc‐
cessful completion of the reset, the tires appear
in green on the Control Display and "TPM
active" is displayed.
The trip can be interrupted at any time. If you
drive away again, the reset resumes automati‐
cally.
Low tire pressure message The yellow warning lamp lights up. A
Check Control message is displayed.▷There is a flat tire or a major loss in
tire inflation pressure.▷A reset of the system was not carried out af‐
ter a wheel was changed. The system there‐
fore issues a warning based on the tire pres‐
sures before the last reset.1.Reduce your speed and stop cautiously.
Avoid sudden braking and steering maneu‐
vers.2.Check whether the vehicle is fitted with reg‐
ular tires or run-flat tires.
Run-flat tires, refer to page 181, are labeled
with a circular symbol containing the letters
RSC marked on the tire sidewall.
Do not continue driving without run-flat
tires
Do not continue driving if the vehicle is not
equipped with run-flat tires; continued driving
may result in serious accidents.◀
When a low inflation pressure is indicated, DSC
Dynamic Stability Control is switched on if nec‐
essary.
Actions in the event of a flat tire
Normal tires
1.Identify the damaged tire.
Do this by checking the air pressure in all
four tires.
If the tire inflation pressure in all four tires is
correct, it is possible that a reset was not
carried out for the Tire Pressure Monitor. In
that case, carry out a reset.Seite 103SafetyControls103
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MalfunctionThe yellow warning lamp flashes and
then lights up continuously. A Check
Control message is displayed. No flat
tire or loss of tire pressure can be detected.
Display in the following situations:▷A wheel without TPM electronics is fitted:
have the service center check it if necessary.▷Malfunction: have the system checked by
your service center.▷TPM was unable to complete the reset. Re‐
set the system again.▷Disturbance by systems or devices with the
same radio frequency: after leaving the area
of the disturbance, the system automatically
becomes active again.
Declaration according to NHTSA/
FMVSS 138 Tire Pressure Monitoring
System
Each tire, including the spare (if provided)
should be checked monthly when cold and in‐
flated to the inflation pressure recommended by
the vehicle manufacturer on the vehicle placard
or tire inflation pressure label. (If your vehicle has
tires of a different size than the size indicated on
the vehicle placard or tire inflation pressure la‐
bel, you should determine the proper tire infla‐
tion pressure for those tires.) As an added safety
feature, your vehicle has been equipped with a
tire pressure monitoring system (TPMS) that il‐
luminates a low tire pressure telltale when one
or more of your tires is significantly under-in‐
flated. Accordingly, when the low tire pressure
telltale illuminates, you should stop and check
your tires as soon as possible, and inflate them
to the proper pressure. Driving on a significantly
under-inflated tire causes the tire to overheat
and can lead to tire failure. Under-inflation also
reduces fuel efficiency and tire tread life, and
may affect the vehicle's handling and stopping
ability. Please note that the TPMS is not a sub‐
stitute for proper tire maintenance, and it is the
driver's responsibility to maintain correct tire
pressure, even if under-inflation has not reached
the level to trigger illumination of the TPMS low
tire pressure telltale. Your vehicle has also been
equipped with a TPMS malfunction indicator to
indicate when the system is not operating prop‐
erly. The TPMS malfunction indicator is com‐
bined with the low tire pressure telltale. When
the system detects a malfunction, the telltale will
flash for approximately one minute and then re‐
main continuously illuminated. This sequence
will continue upon subsequent vehicle start-ups
as long as the malfunction exists. When the mal‐
function indicator is illuminated, the system may
not be able to detect or signal low tire pressure
as intended. TPMS malfunctions may occur for
a variety of reasons, including the installation of
replacement or alternate tires or wheels on the
vehicle that prevent the TPMS from functioning
properly. Always check the TPMS malfunction
telltale after replacing one or more tires or
wheels on your vehicle to ensure that the re‐
placement or alternate tires and wheels allow
the TPMS to continue to function properly.
FTM Flat Tire Monitor
The concept
The system does not measure the actual infla‐
tion pressure in the tires.
It detects a pressure loss in a tire by comparing
the rotational speeds of the individual wheels
while moving.
In the event of a pressure loss, the diameter and
therefore the rotational speed of the corre‐
sponding wheel change. This is detected and
reported as a flat tire.
Functional requirements
The system must have been initialized when the
tire inflation pressure was correct; otherwise,
reliable signaling of a flat tire is not ensured. In‐
itialize the system after each correction of the
tire inflation pressure and after every tire or
wheel change.Seite 105SafetyControls105
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