2015 MERCEDES-BENZ GLC SUV Owners Manual

Electric operation mode
The electric motor powers the vehicle. The
high-voltage battery supplies the electric
motor with electrical energy.
The arrows for the energy flow are shown in
green.
Electric operation mode and charging the
high-voltage battery The electric motor is being operated as an
alternator, e.g. in overrun mode and when
braking. The kinetic energy of the vehicle is
converted into electrical energy. The high-
voltage battery is charging.
The arrows for the energy flow are shown in
green. Charging the high-voltage battery when
stationary The internal combustion engine and the elec-
tric motor are switched off.
The arrows for the energy flow are not shown.
Further information on charging the high-volt-
age battery via:
R a mains socket (Y page 213)
R a charging station (Y page 217)
R a wallbox (Y page 216)
Displaying the total range and electrical range The approximate range is based on the cur-
rent driving style.
X Use Ñ on the steering wheel to call up
the list of menus.
X Press the :or9 button on the steer-
ing wheel to select the Travel Travelmenu.
X Confirm by pressing aon the steering
wheel.
X Press :or9 to select the approxi-
mate total range and electrical range. 294
PLUG‑
IN HYBRID operationDriving and parking

Displaying fuel consumption and gen-
erated electrical energy :
Fuel consumption
; Electrical energy generated
Every bar of the graph displays the average
value for one minute.
Fuel consumption indicator :may differ
from the indicator in the From start From starttrip
computer in the Trip
Trip menu.
To reset the values: the values are reset
along with the From start
From starttrip computer
(Y page 319).
X To select Consumption
Consumption: turn and press the
controller.
The Audio 20 or COMAND Online display
shows fuel consumption :and electrical
energy generated ;for the last
15 minutes driven. Starting the vehicle
The vehicle starts in electric mode without the
internal combustion engine (noiseless start).
The internal combustion engine starts only
after the power demanded by the driver
exceeds the available power that the electric
motor can currently provide.
Noiseless start operation is dependent on the
outside temperature and the operating tem-
perature of the internal combustion engine. If
not all conditions for noiseless start operation are fulfilled, the vehicle starts with the inter-
nal combustion engine. X
Switch the ignition on.
X Depress the brake pedal.
X Follow the starting instructions
(Y page 189).
X Start the vehicle (Y page 189).
The vehicle is operational when READY indi-
cator :lights up. Pulling away
X Depress the brake pedal and keep it
depressed.
X Shift the transmission to position Dor R.
X If the Apply brake to deselect Park
Apply brake to deselect Park
(P) (P) position
position display message appears in
the multifunction display, depress the
brake pedal more firmly and select the
desired transmission position.
X Release the brake pedal.
X Carefully depress the accelerator pedal.
For further information on pulling away
(Y page 190). Driving
DYNAMIC SELECT switch Drive programs
Use the DYNAMIC SELECT switch to change
the drive program. Depending on the drive
program selected, the following vehicle char-
acteristics will change:
R the drive (engine and transmission man-
agement)
R the suspension
R the steering PLUG
‑IN HYBRID ope ration
295Driving an d parking Z

R
the climate control
- the climate control settings
- the rear window heating operation period
- the performance of the seat heating
R the availability of the Eco Assistant
If the ignition is switched off for less than four hours, the previously selected drive program
is activated when the engine is next started. If
the ignition is switched off for more than four hours, drive program Cis activated when the
engine is next started. X
Push DYNAMIC SELECT switch :up or
down until the desired drive program is
selected.
The status icon of the selected drive pro-
gram is shown in the multifunction display.
In addition, the current drive program set-
tings are displayed briefly in the Audio 20 or COMAND Online display.
i In a few countries, the ECO start/stop
function is deactivated at the factory due to the quality of the available fuel. In this case,
the ECO start/stop function is not available in any drive program, regardless of the dis-
play in the Audio 20 or COMAND Online
display.
Available drive programs: I
Individual Individual settings
S+
Sport Plus R
Extremely sporty driving
style with boost mode
R Electric-only drive is not
possible S
Sport R
Sporty driving style with
boost mode
R Electric-only drive is not
possible C
Comfort R
Comfortable, economi-
cal driving style
R Electric-only drive is
possible E
Economy R
Particularly economical
driving style
R Electric operation mode
is used as often as pos-
sible
R Double pulses in the
haptic accelerator
pedal, as an indication
to release the accelera-
tor pedal (Y page 297)
R After the accelerator
pedal has been
released, the coasting
characteristics of the
vehicle are adapted to
the traffic conditions Additional information for drive programs
(Y page 200).
Using the steering wheel gearshift paddles,
you can temporarily change gear yourself.
Further information on the manual drive pro-
gram (Y page 296).
Manual gearshifting
Using the steering wheel gearshift paddles,
you can temporarily change gear yourself.
The transmission must be in position D. Dur-
ing manual gearshifting, the combustion
engine is always switched on.
Activating when driving with the electric
motor:
X Pull the left or right steering wheel gearshift
paddle (Y page 201).
The combustion engine is switched on.
Manual gearshifting is activated tempora- 296
PLUG
‑IN HYBRI D operationDriving an d parking

rily. The selected gear and
Mappear in the
multifunction display.
Activating when driving with the combustion
engine:
X Pull the left or right steering wheel gearshift
paddle (Y page 201).
Manual gearshifting is activated tempora-
rily. The selected gear and Mappear in the
multifunction display.
The ECO start/stop function is not available
when manually changing gear.
Further information on the manual drive pro-
gram (Y page 201).
Haptic accelerator pedal General notes
The haptic accelerator pedal helps you to
reduce the fuel consumption and emissions
of your vehicle.
There are two different functions available for
this purpose:
R an additional point of resistance in E-MODE
operating mode (Y page 290)
R a double pulse in drive program E
(Y page 295)
Additional point of resistance in the hap-
tic accelerator pedal
The maximum available electric performance
is indicated by a tangible point of resistance
in the haptic accelerator pedal.
The additional point of resistance is available in E-MODE operating mode (Y page 290).
If you depress the haptic accelerator pedal
beyond the pressure point, the combustion
engine is switched on.
Double pulses in the haptic accelerator
pedal
A noticeable double pulse in the haptic accel-
erator pedal is a recommendation that you
should release the accelerator pedal. By this
means, in HYBRID,E-MODE orE-SAVE oper-
ating mode the combustion engine can be switched off and disconnected from the
power train (overrun mode).
The double pulse is available in drive program
E (Y page 295).
After the accelerator pedal has been
released, the coasting characteristics of the
vehicle are adapted to the traffic conditions
To avoid getting too close to the vehicle in
front, you must apply the brakes manually
when necessary.
Driving tips General driving tips
Drive carefully and maintain a suitable dis-
tance from the vehicle in front. Avoid frequent
and sudden acceleration as well as abrupt
braking.
During partial electric drive, pulling away and acceleration, the electric motor supports the internal combustion engine.
During overrun in transmission position Dand
braking, the electric motor operates as an
alternator.
Further information on the ECO start/stop
function (Y page 298).
Additional driving tips (Y page 222).
Stationary vehicle
If the vehicle is stopped, the combustion
engine is, for the most part, switched off.
Automatic climate control continues to func-
tion. The electro-mechanically assisted steer-
ing gear allows use of the power steering
without loss of comfort.
Acceleration
Depending on the operating mode, pulling
away and driving under low load conditions
are performed:
R entirely by electric propulsion
R in combination with the internal combus-
tion engine
When accelerating at an increased or full
load, boost mode is utilised. The electric
motor supports the internal combustion PLUG‑IN HYBRID operation
297Driving and parking Z

engine by providing additional torque when
the accelerator is depressed rapidly.
Overrun mode or braking
There are three possible operating modes
when the hybrid vehicle is decelerating:
R When coasting and decelerating, energy
recuperation is already taking place
(Y page 287). The electric motor functions
as an alternator and stores the recuperated energy in the high-voltage battery.
R When braking gently, the electric motor
increases the deceleration of the vehicle.
Energy recuperation is increased
(Y page 287). The electric motor functions
as an alternator and stores the recuperated energy in the high-voltage battery.
R During heavy braking, the service brake is
also used to slow down the vehicle. Both
systems work together.
Driving in the city
Energy is recuperated during frequent decel-
eration and stopping in city traffic.
The vehicle can be driven by the electric
motor alone up to a speed of approximately
140 km/h.
The vehicle is driven by the electric motor
alone only when all conditions for the auto-
matic engine switch-off are fulfilled.
Further information on the automatic engine
switch-off (Y page 298).
Driving on inter-urban roads
The following phases are possible when driv-
ing on inter-urban roads:
R rapid acceleration (boost mode)
R constant energy consumption
R energy recuperation
R electric operation mode
Depending on the characteristics of the
route, there may be a lot of recuperated
energy available. This reduces consumption
and emissions. Driving on the motorway
When driving on a motorway, the decrease in
wasted power has a particularly positive
effect on fuel consumption and emissions.
If the driver removes his foot from the accel-
erator pedal in drive program Eand a speed of
160 km/h is not exceeded, the combustion
engine is automatically switched off.
Further information on the automatic engine
switch-off (Y page 298).
ECO start/stop function General notes
The ECO start/stop function switches the
internal combustion engine off automatically
when the vehicle stops moving and at high
speeds (Y page 299).
All vehicle systems remain active, e.g. the
automatic climate control.
The ECO start/stop function is only available in drive programs Cand E. Electric-only oper-
ation is only possible in drive programs Cand
E. Additional information for drive programs
(Y page 295).
Automatic engine switch-off
The internal combustion engine is switched
off automatically if:
R the driver removes his foot from the accel-
erator in drive program Eand a speed of
160 km/h is not exceeded (Y page 299)
R the internal combustion engine has
reached its operating temperature
R the driver's seat belt is fastened and the
driver's door is closed
R the driver only slightly depresses the accel-
erator pedal in order to, for example, main- tain the current speed for a limited distance
R the bonnet is closed and engaged properly
R the high-voltage battery is charged suffi-
ciently
R no malfunctions are present in the hybrid
drive system 298
PLUG‑IN HYBRID operationDriving and parking

The internal combustion engine will not be
switched off automatically, if:
R the self-diagnosis function of the engine
control unit is still active
R there is a malfunction in the hybrid drive
system
R the climate control of the vehicle requires it
R the high-voltage battery is being charged
(Y page 292)
R automatic emissions tests are running
Automatic engine start
The internal combustion engine, which has
been automatically switched-off, starts auto-
matically in certain situations, when:
R the power demand from the driver via the
accelerator pedal is greater than the elec-
tric motor alone can provide
R the driver switches to drive program Sor M
R the charge level of the high-voltage battery
has reached the lower limit
R the settings of the automatic climate con-
trol require it, e.g. at external temperatures
above 30 †
Overrun mode
In overrun mode, the combustion engine is
switched off and is disconnected from the
drive train. The electric motor:
R generates low thrust, which corresponds to
the overrun mode of an active combustion
engine
R functions as an alternator and produces the
necessary energy for the auxiliary consum- ers and charges the high-voltage battery
Overrun mode is available in drive program E
below 160 km/h.
In drive program E, after the accelerator pedal
has been released the coasting characteris-
tics of the vehicle are adapted to the traffic
conditions. Further information about the
haptic accelerator pedal (Y page 297).Route-based energy management For route-based energy management, the
system factors in information about the
expected route when route guidance is
active.
The information on the route is provided by
COMAND Online and includes the following:
R road categories
R speed limitations
R data on downhill gradients
The use of electric energy is automatically
optimally distributed from the beginning to
the end of the journey, using information
about the route. The distribution is pre-emp-
tive and takes into consideration:
R the sections of the journey ahead
R the energy consumption on the whole route
The charge status of the high-voltage battery
is thus systematically controlled. In addition,
the control function takes into account that:
R the fuel savings through the use of electri-
cal energy can vary, depending on the route
(e.g. urban, interurban or motorway)
R the use of electrical energy is held available
in particular for electric operation (e.g.
urban routes)
The vehicle thus automatically selects the
optimum driving mode for the respective sec- tion of the route.
Route-based energy management is available
under the following conditions:
R drive program Eis selected
R HYBRID driving mode is selected
R active route guidance is activated
R suitable map data is available
When route-based energy management is in
operation, the area in front of the vehicle is
shown as green in the multifunction display. PLUG‑IN HYBRID operation
299Driving and parking Z

Parking
X Apply the electric parking brake.
The red !indicator lamp in the instru-
ment cluster lights up.
X Use the DIRECT SELECT lever to shift the
automatic transmission to P.
X Switch the ignition off.
The READY indicator in the instrument clus-
ter goes out.
Further information on parking and switching off the internal combustion engine
(Y page 220). 300
PLUG‑IN HYBRID operationDriving and parking

Problems with PLUG-IN HYBRID operation
Internal combustion engine Problem
Possible causes/consequences and
M
MSolutions You cannot start the
internal combustion
engine. The multifunc-
tion display shows no
display messages. The
READY indicator in the
multifunction display is
off. For example, self-diagnosis is not yet complete or the hybrid drive
system is malfunctioning.
X Switch off the ignition and turn it back on.
X Try to start the internal combustion engine again.
If the internal combustion engine still does not start: X Consult a qualified specialist workshop. You wish to pull away,
but the ECO start/stop
function does not start
the internal combus-
tion engine. The READY
indicator in the multi-
function display is off. The ECO start/stop function has failed. The warning and indicator
lamps in the instrument cluster light up.
X Shift the transmission to P.
X Switch off the ignition and turn it back on.
X Start the engine. The hybrid drive system is malfunctioning.
X Consult a qualified specialist workshop. Recuperative Brake System
Problem
Possible causes/consequences and
M MSolutions Braking resistance is
reduced and brake
pedal travel is longer
than usual.
G
Risk of accident
The Recuperative Brake System is malfunctioning.
X Observe the additional display messages in the multifunction
display (Y page 335).
X Observe the information regarding indicator and warning lamps
in the instrument cluster (Y page 377) . PLUG‑IN HYBRID operation
301Driving and parking Z