ignition MERCEDES-BENZ GLC COUPE 2016 Service Manual

Activating/deactivating air-recircula-
tion mode
General notes You can also temporarily deactivate the flow of
fresh air manually if unpleasant odours are
entering the vehicle from outside. The air
already inside the vehicle will then be recircula-
ted.
If you activate air-recirculation mode, the win-
dows can mist up more quickly, particularly at
low outside temperatures. Use air-recirculation
mode only briefly to prevent the windows from
misting up.
Activating/deactivating X
Turn the key to position 2in the ignition lock
(Y page 144).
X To activate: press thegrocker switch up
or down.
The indicator lamp above the grocker
switch lights up.
Air-recirculation mode is activated automati-
cally:
R at high outside temperatures
R at high levels of pollution (THERMOTRONIC
automatic climate control only)
R in tunnels (vehicles with a navigation system
only)
The indicator lamp above the grocker
switch is not lit when automatic air-recirculation
mode is activated. Outside air is added after
approximately 30 minutes.
X To deactivate: press thegrocker switch
up or down.
The indicator lamp above the grocker
switch goes out.
Air-recirculation mode is deactivated automati-
cally:
R after approximately five minutes at outside
temperatures below approximately 5 †
R after approximately five minutes if "Cooling
with air dehumidification" is deactivated
R after approximately 30 minutes at outside
temperatures above approximately 5 †if the
"Cooling with air dehumidification" function is
activated Convenience opening or closing using
the air-recirculation button G
WARNING
When the convenience closing feature is oper- ating, parts of the body could become trapped
in the closing area of the side window and the
sliding sunroof. There is a risk of injury.
Observe the complete closing procedure
when the convenience closing feature is oper-
ating. When closing make sure that no parts of the body are in the closing area. G
WARNING
During convenience opening parts of the body could be drawn in or become trapped
between the side window and window frame.
There is a risk of injury.
When opening, make sure that nobody is
touching the side window. If someone
becomes trapped, immediately press
the W switch in the door to stop the move-
ment of the side windows. To continue closing
the side window, pull on the Wswitch.
X Convenience closing feature: press and
hold the grocker switch up or down until
the side windows start to close automatically. Vehicles with sliding sunroof: the sliding
sunroof closes simultaneously.
The indicator lamp above the grocker
switch lights up. Air-recirculation mode is
activated.
If you open the side windows or the sliding
sunroof manually after closing with the con-
venience closing feature, they will remain in
this position when opened using the conve-
nience opening feature.
If parts of the body are in the closing area during convenience closing, proceed as follows:
X Press the Wbutton to stop the side win-
dows.
The side windows stop.
X To then open the side windows, press the
W button again. 134
Operating the climate control systemClimate control

X
Only vehicles with sliding sunroof: press
the 3 switch to stop the sliding sunroof.
The sliding sunroof stops.
X Then, to open the sliding sunroof, pull back on
the 3 switch.
Notes on the automatic reversing feature for:
R the side windows (Y page 95)
R the sliding sunroof (Y page 99)
X Convenience opening feature: press and
hold the grocker switch up or down until
the side windows or the sliding sunroof start
to open automatically.
The indicator lamp above the grocker
switch goes out. Air-recirculation mode is
deactivated. Switching the residual heat on/off
General notes The residual heat function is available only with
THERMOTRONIC automatic climate control andTHERMATIC automatic climate control with aux-
iliary heating.
When the engine is switched off, it is possible to
make use of the residual heat of the engine to
continue heating or ventilating the front com-
partment of the vehicle for approximately
30 minutes. The heating or ventilation time
depends on the set interior temperature.
Activating/deactivating X
Turn the key to position 0in the ignition lock
or remove it (Y page 144).
X To switch on: press the!rocker switch
up or down.
The indicator lamp above the !rocker
switch lights up.
The blower will run at a low speed regardless of the airflow setting.
If you switch on the residual heat function at
high temperatures, only the ventilation will be
activated. The blower runs at medium speed. X
To switch off: press the!rocker switch
up or down.
The indicator lamp above the !rocker
switch goes out.
Residual heat is switched off automatically:
R after approximately 30 minutes
R when the ignition is switched on
R if the battery voltage drops
R when the auxiliary heating is switched on perfume atomiser
Operating the perfume atomiser G
WARNING
If children open the vial, they could drink the
perfume or it could come into contact with
their eyes. There is a risk of injury. Do not
leave children unsupervised in the vehicle.
If the perfume liquid has been drunk, consult
a doctor. If perfume comes into contact with
your eyes or skin, rinse the eyes with clean
water. If you continue to experience difficul-
ties, consult a doctor. H
Environmental note Full vials must not be dis-
posed of with household
waste. They must be collec-
ted separately and disposed
of in an environmentally
responsible recycling sys-
tem.
Dispose of full vials in an
environmentally responsible
manner and take them to a
harmful substance collec-
tion point.Operating the climate control system
135Climate control Z

!
Operating the auxiliary heating/ventilation
draws on the vehicle battery. After you have
heated or ventilated the vehicle a maximum of two times, drive for a longer distance.
Switch the auxiliary heating on regularly – once a month – for about ten minutes.
The auxiliary heating heats the air in the vehicle
interior to the set temperature. This occurs with- out using the heat of the running engine. The
auxiliary heating is operated directly using the
vehicle's fuel. For this reason, the fuel tank level
must be above the reserve range to ensure that the auxiliary heating functions.
The auxiliary heating or auxiliary ventilation
automatically adjusts to changes in tempera-
ture and weather conditions. For this reason,
the auxiliary heating could switch from ventila-
tion mode to heating mode or from heating
mode to ventilation mode.
The auxiliary heating switches off when the
engine is switched off. The auxiliary ventilation
is not active if the engine is running.
The auxiliary heating or auxiliary ventilation
switches off automatically after 50 minutes.
This time limit can be altered. To do this, consult
a qualified specialist workshop.
You cannot use the auxiliary ventilation to cool
the vehicle interior to a temperature lower than
the outside temperature.
Before switching on X
Turn the key to position 2in the ignition lock
(Y page 144).
X Set the desired temperature using the w
rocker switch on the front control unit.
If you do not alter the temperature before
switching on the auxiliary heating or auxiliary
ventilation, the last temperature setting will be
adopted.
Auxiliary heating or auxiliary ventilation can also be switched on if the manually set climate con-
trol is activated. Optimum comfort is attained
when the system is set to automatic mode. Set
the temperature to 22 †.
You can switch the auxiliary heating or auxiliary
ventilation on or off:
R using the rocker switch on the centre console
(Y page 138)
R using the remote control (Y page 139)The remote control can be used to set up to
three departure times, one of which may be pre- selected.
Switching the auxiliary heating/venti-
lation on/off using the centre console
rocker switch General notes
The colours of the indicator lamps above rocker
switch :have the following meanings:
R blue: auxiliary ventilation is switched on
R red: auxiliary heating is switched on
R yellow: departure time is preselected
Activating/deactivating
X To switch on auxiliary heating or auxiliary
ventilation: press rocker switch :up or
down.
The red or the blue indicator lamp above
rocker switch :lights up.
X To set the temperature: switch on auxiliary
heating or auxiliary ventilation.
The multimedia system is activated for
approximately one minute.
X Set the desired temperature using the multi-
media system (see the Digital Owner's Man-
ual).
X To switch off auxiliary heating or auxiliary
ventilation: press rocker switch :up or
down.
The red or the blue indicator lamp above
rocker switch :goes out. 138
Operating the climate control systemClimate control

Running-in notes
Important safety notes
In certain driving and driving safety systems, the sensors adjust automatically while a certain dis-
tance is being driven after the vehicle has been delivered or after repairs. Full system effective-
ness is not reached until the end of this teach-in process.
Brake pads/linings and discs that either are new or have been replaced achieve optimum braking
effect only after several hundred kilometres of
driving. Compensate for the reduced braking
effect by applying greater force to the brake
pedal. The first 1500 km
The more you treat the engine with sufficient
care at the start, the more satisfied you will be
with the engine performance later on.
R You should therefore drive at varying road
speeds and engine speeds for the first
1500 km.
R Avoid overstraining the vehicle during this
period, e.g. driving at full throttle.
R When shifting gears manually, shift up in good
time, before the rev counter needle reaches
Ô of the way to the red area of the rev counter
display.
R Do not shift down a gear manually in order to
brake.
R Try to avoid depressing the accelerator pedal
beyond the pressure point (kickdown).
After 1500 km, you can increase the engine
speed gradually and accelerate the vehicle to
full speed.
You should also observe these notes on running- in if the engine or parts of the drive train on your
vehicle have been replaced.
Always observe the maximum permissible
speed. Driving
Important safety notes
G
WARNING
Objects in the driver's footwell can impede
pedal travel or block a pedal which is
depressed. This jeopardises safe operation of the vehicle. There is a risk of an accident.
Stow all objects in the vehicle safely, so that
they cannot reach the driver's footwell. Make sure the floormats and carpets are properly
secured so that they cannot slip and obstruct the pedals. Do not lay several floormats or
carpets on top of one another. G
WARNING
Unsuitable footwear can hinder correct usage of the pedals, e.g.:
R shoes with thick soles
R shoes with high heels
R slippers
There is a risk of an accident.
Wear suitable footwear to ensure correct
usage of the pedals. G
WARNING
If you switch off the ignition while driving,
safety-relevant functions are only available
with limitations, or not at all. This could affect, for example, the power steering and the brake
boosting effect. You will require considerably
more effort to steer and brake. There is a risk of an accident.
Do not switch off the ignition while driving. G
WARNING
If the parking brake has not been fully
released when driving, the parking brake can:
R overheat and cause a fire
R lose its hold function.
There is a risk of fire and an accident. Release
the parking brake fully before driving off.
! Do not warm up the engine when the vehicle
is stationary. Drive off immediately. Avoid Driving
143Driving and parking Z

high engine speeds and driving at full throttle
until the engine has reached its operating
temperature.
Only shift the automatic transmission to the
desired drive position when the vehicle is sta- tionary.
Where possible, avoid spinning the drive
wheels when pulling away on slippery roads.
You could otherwise damage the drive train.
HYBRID vehicles: make sure that you read the
separate Owner's Manual. Otherwise, you may
fail to recognise dangers. Key positions
Key g
To remove the key
1 Power supply for some consumers, such as
the windscreen wipers
2 Ignition (power supply for all consumers)
and drive position
3 Starting the vehicle
i If the key does not belong to the vehicle, it
can still be turned in the ignition lock. How-
ever, the ignition will not be switched on. The
engine cannot be started.
Start/Stop button General notes
When you insert the Start/Stop button in the
ignition lock, the system needs approximately
two seconds of recognition time. You can then
use the Start/Stop button.
Pressing the Start/Stop button several times in succession corresponds to the different key
positions in the ignition lock. This is the case
only if you are not depressing the brake pedal. If you depress the brake pedal and press the
Start/Stop button, the engine starts immedi-
ately.
A check that periodically establishes a radio
connection between the vehicle and the key
determines whether a valid key is in the vehicle.
This occurs, for example, when the engine is
started.
To start the vehicle without actively using the
key:
R the Start/Stop button must be inserted in the
ignition lock
R the key must be in the vehicle
R the vehicle must not be locked with the key or
KEYLESS-GO (Y page 83)
Do not keep the key:
R with electronic devices, e.g. a mobile phone
or another key
R with metallic objects, e.g. coins or metal foil
R inside metallic objects, e.g. a metal case
This can impair the key's function.
If you lock the vehicle with the key's remote
control or with KEYLESS-GO, after a short time:
R you will no longer be able to switch on the
ignition with the Start/Stop button
R you will no longer be able to start the engine
with the Start/Stop button until the vehicle is
unlocked again
If you lock the vehicle centrally using the button
on the front door (Y page 89), you can continue
to start the engine with the Start/Stop button.
You can switch off the engine while the vehicle is
in motion by pressing and holding the Start/
Stop button for around three seconds. This func- tion operates independently of the ECO start/
stop automatic engine switch-off function. 144
DrivingDriving and parking

Key positions with the Start/Stop button
:
Start/Stop button
; Ignition lock
When you switch on the ignition, all the indicator lamps on the instrument cluster light up. For
warning and indicator lamps, see (Y page 280).
If Start/Stop button :has not yet been
pressed, this is the same as the key having been removed.
X To switch on the power supply: press
Start/Stop button :once.
The power supply is switched on. You can now
activate the windscreen wipers, for example.
The power supply is switched off again if:
R the driver's door is opened and
R you press Start/Stop button :twice when in
this position
X To switch on the ignition: press Start/Stop
button :twice.
The ignition is switched on.
The ignition is switched off again if:
R you do not start the engine from this position
within 15 minutes
R you press Start/Stop button :once when in
this position
The power supply is switched off again if:
R the driver's door is opened and
R you press Start/Stop button :once when in
this position
Removing the Start/Stop button
You can remove the Start/Stop button from the
ignition lock and start the vehicle as normal
using the key.
It is possible to switch between Start/Stop but- ton mode and key operation only when the
transmission is in position j.X
Remove Start/Stop button :from ignition
lock ;.
You do not have to remove the Start/Stop but-
ton from the ignition lock when you leave the
vehicle. You should, however, always take the
key with you when leaving the vehicle. As long as
the key is in the vehicle:
R the vehicle can be started using the Start/
Stop button
R the electrically powered equipment can be
operated Starting the vehicle
Important safety notes G
WARNING
If children are left unsupervised in the vehicle, they can:
R open doors and endanger other persons or
road users
R climb out and be injured by the traffic
R operate vehicle equipment and, for exam-
ple, trap themselves.
Children could also set the vehicle in motion, for example by:
R releasing the parking brake
R shifting the automatic transmission out of
park position P
R starting the engine.
There is a risk of an accident and injury.
When leaving the vehicle, always take the key
with you and lock the vehicle. Never leave
children unattended in the vehicle. Always
keep the key out of reach of children. G
WARNING
Combustion engines emit poisonous exhaust
gases such as carbon monoxide. Inhaling
these exhaust gases leads to poisoning. There is a risk of fatal injury. Therefore never leave
the engine running in enclosed spaces with-
out sufficient ventilation. Driving
145Driving and pa rking Z

G
WARNING
Flammable materials introduced through
environmental influence or by animals can
ignite if in contact with the exhaust system or parts of the engine that heat up. There is a risk
of fire.
Carry out regular checks to make sure that
there are no flammable foreign materials in
the engine compartment or in the exhaust
system.
General notes Vehicles with a petrol engine:
the catalytic
converter is preheated for up to 30 seconds
after a cold start. The sound of the engine may
change during this time.
Automatic transmission X
Shift the transmission to position j
(Y page 154).
The transmission position indicator on the
multifunction display shows j
(Y page 155).
i You can start the engine in transmission
position jand i.
Starting procedure using the key To start the engine using the key instead of the
Start/Stop button, pull the Start/Stop button
out of the ignition lock.
X To start a diesel engine: turn the key to
position 2in the ignition lock (Y page 144).
The % preglow indicator lamp on the
instrument cluster lights up.
X Turn the key to position 3in the ignition lock
(Y page 144) and release it as soon as the
engine is running.
i Vehicles with a diesel engine:
you can
start the engine without preglow if the engine
is warm.
If the engine will not start:
X Remove the key from the ignition lock.
X Reinsert the key in the ignition lock after wait-
ing for a short period. X
Turn the key to position 2in the ignition lock
(Y page 144).
The indicator lamps on the instrument cluster
light up (Y page 280).
X Turn the key to position 3in the ignition lock
(Y page 144) and release it as soon as the
engine is running.
Starting procedure using the Start/
Stop button The Start/Stop button is available only on vehi-
cles with KEYLESS-GO or the KEYLESS-GO start
function.
The Start/Stop button can be used to start the
vehicle manually without inserting the key in the ignition lock. The key must be in the vehicle and
the Start/Stop button must be inserted in the
ignition lock. This mode for starting the engine
manually operates independently of the ECO
start/stop automatic engine start function.
You can start the engine if a valid key is in the
vehicle. Switch off the engine and always take
the key with you when leaving the vehicle, even
if you leave it for only a short time. Observe the important safety notes.
X Depress the brake pedal and keep it
depressed.
X Press the Start/Stop button once
(Y page 144).
Vehicles with a petrol engine: the engine
starts.
Vehicles with a diesel engine: preglow is
activated and the engine starts. Pulling away
General notes G
WARNING
If the engine speed is above the idling speed
and you engage transmission position Dor R,
the vehicle could pull away suddenly. There is a risk of an accident.
When engaging transmission position Dor R,
always firmly depress the brake pedal and do not simultaneously accelerate.
Depress the accelerator carefully when pulling
away. 146
DrivingDriving and parking

If you wish to exit the vehicle, always turn off
the ignition and secure the vehicle against
rolling away.
General notes :
ECO start/stop display
Hybrid vehicles: observe the notes on the ECO
start/stop function in the separate Owner's
Manual.
Excluding Mercedes-AMG vehicles: the ECO
start/stop function is switched on whenever
you start the engine using the key or the Start/ Stop button.
If the è ECO symbol is shown on the multi-
function display, the ECO start/stop function
switches the engine off automatically if the vehi-
cle stops moving.
If the ECO start/stop function has been
switched off manually (Y page 149) or as the
result of a malfunction, the èorç ECO
symbol is not displayed.
Mercedes-AMG GLC 43 4MATIC Coupé: the
ECO start/stop function is available only in drive programs Cand E.
Mercedes-AMG vehicles: the ECO start/stop
function is switched on whenever you restart
the engine using the key or the Start/Stop but-
ton. This is the case if:
R the ignition was switched off for more than
four hours or
R the ECO start/stop function had been
switched on before the engine was switched
off
Automatic engine switch-off If the vehicle is braked to a standstill with the
transmission in hori, the ECO start/stop
function switches off the engine automatically.
The HOLD function can be activated if the
engine has been switched off automatically. It is then not necessary to continue applying the
brakes during the automatic stop phase. When you depress the accelerator pedal, the engine
starts automatically and the braking effect of
the HOLD function is deactivated.
The ECO start/stop function is operational and
the
è ECO symbol is shown on the multi-
function display if:
R the indicator lamp in the ECO button is lit
green
R the outside temperature and the atmospheric
air pressure are within a range that is suitablefor the system
R the engine is at normal operating temperature
R the set temperature for the vehicle interior
has been reached
R the battery is sufficiently charged
R the system does not detect moisture on the
windscreen when the air-conditioning system
is switched on
R the bonnet is closed
R the driver's door is closed and the driver's
seat belt is fastened
If all conditions for automatic engine switch-off
are not fulfilled, the çECO symbol is shown.
All the vehicle's systems remain active when the engine is switched off automatically.
The engine can be switched off automatically a
maximum of four times (initial stop, then three
subsequent stops) in succession. The çECO
symbol is shown on the multifunction display
after the engine has been started automatically
for the fourth time. When the èECO symbol
is shown on the multifunction display, automatic engine switch-off is possible again.
Automatic engine start The engine is started automatically if:
R
you switch off the ECO start/stop function by
pressing the ECO button
R Mercedes-AMG GLC 43 4MATIC Coupé:
you switch to drive program S+orS
R all other models: you switch to drive pro-
gram S+
R Mercedes-AMG vehicles: you permanently
activate manual gearshifting (Y page 158)
R in transmission position hori, the brake
pedal is released and the HOLD function is not active
R you depress the accelerator pedal
R you engage reverse gear k148
DrivingDriving and parking

AMG performance exhaust system
can be selected (Mercedes-AMG vehi-
cles)
You can choose between different AMG Per-
formance exhaust system volumes using the
position of the exhaust flap.
If the ignition is switched off for less than four
hours, the previously selected setting is activa-
ted when the engine is next started. If the igni-
tion is switched off for more than four hours, the quietest setting is activated when the engine is
next started. Setting the volume:
X Press button :.
If you select the loudest setting, indicator
lamp ;lights up.
Adjust the position of the exhaust flap using the DYNAMIC SELECT switch (Y page 152).Problems with the engine
Problem
Possible causes/consequences and
M MSolutions The engine does not
start. The HOLD function or DISTRONIC PLUS is activated.
X Deactivate the HOLD function (Y page 186) or DISTRONIC PLUS
(Y page 178).
X Start the engine again (Y page 145).The engine does not
start. The starter motor
can be heard. R
The engine electronics are malfunctioning.
R The fuel supply is malfunctioning.
Before attempting to restart the engine:
X Turn the key back to position uin the ignition lock.
or X Press the Start/Stop button repeatedly until all indicator lamps on
the instrument cluster go out.
X Start the engine again (Y page 145). Avoid excessively long and
frequent attempts to start the engine, as this will drain the battery.
If the engine does not start after several attempts: X Consult a qualified specialist workshop. 150
DrivingDriving and pa
rking

DYNAMIC SELECT switch
Mercedes-AMG vehicles
General information Use the DYNAMIC SELECT switch to select the
drive program.
Available drive programs: S+
Sport Plus Particularly sporty driving
characteristics
S
Sport Sporty driving characteris-
tics
C
Comfort Comfortable and economi-
cal driving characteristics
E
Economy Particularly economical
driving characteristics
I
Individual Individual settings
Depending on the drive program selected, the
following vehicle characteristics will change:
R the engine management
R the transmission management
R the suspension
R the steering
R the availability of the ECO start/stop function
R climate control
R the driver assistance systems
R the availability of gliding mode
Further information for automatic drive program
characteristics (Y page 157).
Additionally, in drive program Iyou can config-
ure the respective vehicle characteristics via the
multimedia system. You can find information
about this in the Digital Owner's Manual.
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. Selecting the drive program X
Push DYNAMIC SELECT switch :forwards
or back until the desired drive program is
selected.
The status icon of the selected drive program is shown on the multifunction display.
In addition, the current drive program settings
are shown briefly on the multimedia system
display.
You can also shift gears yourself using the steer- ing wheel gearshift paddles. Further information
on manual gearshifting (Y page 158).
Additional settings :
Position of the exhaust flap (Y page 150)
; ECO start/stop function (Y page 147)
= ESP ®
(Y page 73)
? Suspension (Y page 190)
A To permanently activate manual gearshift-
ing (Y page 158)
When you press buttons :–A, the corre-
sponding setting is selected. The DYNAMIC
SELECT switch setting is overwritten.
If you switch to drive program I, all stored char-
acteristics are applied. This is also the case if
you have previously pressed buttons :–A. 152
DYNAMIC SELECT switchDriving and pa
rking