fuel consumption MERCEDES-BENZ GLC 2018 Owners Manual

Exhaust pipe
Cleaning ........................................ .3 28
Exterior lighting
Cleaning ......................................... 327
Setting options .............................. 112
see Lights
Exterior mirrors
Adjusting ....................................... 107
Dipping (automatic) ....................... 108
Folding in/out (automatically) ....... 108
Folding in/out (electrically) ........... 108
Out of position (troubleshooting) ... 108
Setting ........................................... 108
Storing settings (memory func-
tion) ............................................... 110
Storing the parking position .......... 109
Eyeglasses compartment ................. 291
FFavorites
Overview ........................................ 283
Features ............................................. 302
Flat tire
Changing a wheel/mounting the
spare wheel ................................... 369
MOExtended tires .......................... 334
Preparing the vehicle ..................... 334
TIREFIT kit ...................................... 335
Floormats ........................................... 317
Frequencies
Mobile phone ................................. 375
Two-way radio ................................ 375
Front wheel arch
Removing/installing the cover ....... 118
Front wheel arch cover
Installing/removing ....................... 118
Fuel
Additives ........................................ 379
Consumption statistics .................. 225
Displaying the current consump-
tion ................................................ 225
Displaying the range ...................... 225
Driving tips .................................... 161
E10 ................................................ 378
Fuel gauge ....................................... 37
Gasoline ......................................... 378
Grade (gasoline) ............................ 378 Important safety notes .................. 378
Problem (malfunction) ................... 157
Refueling ........................................ 155
Tank content/reserve fuel ............. 378
Fuel level
Calling up the range (on-board
computer) ...................................... 225
Fuel tank
Capacity ........................................ 378
Problem (malfunction) ................... 157
Fuses
Allocation chart ............................. 348
Before changing ............................. 347
Dashboard fuse box ....................... 347
Fuse box in the cargo compart-
ment .............................................. 348
Fuse box in the engine compart-
ment .............................................. 348
Fuse box in the front-passenger
footwell .......................................... 347
Important safety notes .................. 347
G G-Meter (on-board computer,
Mercedes-AMG vehicles) .................. 236
Garage door opener
Clearing the memory ..................... 317
General notes ................................ 314
Important safety notes .................. 314
Opening/closing the garage doo r. .3 16
Problems when programming ....... .3 16
Programming (button in the rear-
view mirror) ................................... 315
Synchronizing the rolling code ....... 315
Gasoline ............................................. 378
Gear indicator (on-board com-
puter, Mercedes-AMG vehicles) ....... 235
Genuine parts ...................................... 28
Glove box .......................................... .2 91
Google™ Local Search
see also Digital Operator's Man-
ual ................................................. .2 80
H
Handling control system
see ESP ®
(Electronic Stability Program)12
Index

Protecting the environment
General notes
H Environmental note
Daimler's declared policy is one of compre-
hensive environmental protection.
The objectives are for the natural resources
that form the basis of our existence on this
planet to be used sparingly and in a manner
that takes the requirements of both nature
and humanity into account.
You too can help to protect the environment
by operating your vehicle in an environmen-
tally responsible manner.
Fuel consumption and the rate of engine,
transmission, brake and tire wear are affected
by these factors: R
operating conditions of your vehicle R
your personal driving style
You can influence both factors. You should
bear the following in mind:
Operating conditions: R
avoid short trips as these increase fuel con-
sumption. R
always make sure that the tire pressures
are correct. R
do not carry any unnecessary weight. R
remove roof racks once you no longer need
them. R
a regularly serviced vehicle will contribute
to environmental protection. You should
therefore adhere to the service intervals. R
always have service work carried out at a
qualified specialist workshop.
Personal driving style: R
do not depress the accelerator pedal when
starting the engine. R
do not warm up the engine when the vehicle
is stationary. R
drive carefully and maintain a safe distance
from the vehicle in front. R
avoid frequent, sudden acceleration and
braking. R
change gear in good time and use each gear
only up to

be moved but the parking lock remains
engaged.
i Upshifts take place at higher engine speeds
after a cold start. This helps the catalytic con-
verter to reach its operating temperature
more quickly.
Information on the automatic release of the
electric parking brake ( Y
page 160).
Pulling away with a trailer
To ensure that you do not roll backwards when
pulling away on an uphill slope, engage the elec-
tric parking brake. X
Press and hold handle C .
The electric parking brake continues to brake
and prevent the vehicle from rolling back-
wards.
The red I (USA only) or $ (Canada
only) indicator lamp in the instrument cluster
remains on. X
Depress the accelerator pedal. X
As soon as the vehicle/trailer combination is
held by the driving force of the engine, release
lever C .
The electric parking brake is released.
The red I (USA only) or $ (Canada
only) indicator lamp in the instrument cluster
goes out.
For further information on the electric parking
brake, see ( Y
page 159).
Hill start assist
Hill start assist helps you when pulling away
forward or in reverse on an uphill gradient. It
holds the vehicle for a short time after you have
removed your foot from the brake pedal. This
gives you enough time to move your foot from the brake pedal to the accelerator pedal and to
depress it before the vehicle begins to roll.
G WARNING
After a short time, hill start assist will no lon-
ger brake your vehicle and it could roll away.
There is a risk of an accident and injury.
Therefore, quickly move your foot from the
brake pedal to the accelerator pedal. Never
leave the vehicle when it is held by hill start
assist.
Hill start assist is not active if: R
you are pulling away on a level road or on a
downhill gradient. R
the transmission is in position \\R
the electric parking brake is applied. R
ESP ®
is malfunctioning
ECO start/stop function
Introduction The ECO start/stop function switches the
engine off automatically if the vehicle is stopped
under certain conditions.
The engine starts automatically when the driver
wants to pull away again. The ECO start/stop
function thereby helps you to reduce the fuel
consumption and emissions of your vehicle.
Important safety notes
G WARNING
If the engine is switched off automatically and
you exit the vehicle, the engine is restarted
automatically. The vehicle may begin moving.
There is a risk of accident and injury.
If you wish to exit the vehicle, always turn off
the ignition and secure the vehicle against
rolling away.140
Driving
Driving and parking

Gliding mode is deactivated under the following
conditions: R
You depress the accelerator pedal. R
You depress the brake pedal. R
You change the transmission position
( Y
page 146).R
You switch to drive program RACE
(Mercedes-AMG GLC 63 S 4MATIC), S+ or S
( Y
page 144).R
You activate manual gearshifting
( Y
page 152).R
You leave the suitable speed range.
i If you have selected the "Eco" or "Comfort"
(Mercedes-AMG GLC 63 4MATIC/
GLC 63 S 4MATIC setting for the drive (engine
and transmission management) in drive pro-
gram I , you can also activate gliding mode.
Information on DYNAMIC SELECT and on con-
figuring drive program I with the multimedia
system (see the Digital Operator's Manual).
Towing a trailer X
Drive in the middle of the engine speed range
on uphill gradients. X
Manual shifting: depending on the uphill or
downhill gradient, shift into a gear
( Y
page 152), in which the engine will run the
middle of the engine speed range.
This also applies when cruise control or Dis-
tance Pilot DISTRONIC are activated.
Drive programs
All vehicles except Mercedes-AMG GLC
63 4MATIC+/GLC 63 S 4MATIC+
Drive program I (Individual)
In drive program I the following properties of the
drive program can be selected: R
the drive (engine and transmission manage-
ment)
and therefore indirectly the availability of glid-
ing mode and the properties of the driver
assistance systems R
the suspension R
the steering R
the availability of the ECO start/stop function R
the climate control Information about configuring drive program I
with the multimedia system can be found under
"DYNAMIC SELECT" in the vehicle's Digital
Operator's Manual.
Drive program S+ (Sport Plus) Drive program S+ is characterized by the fol-
lowing: R
the vehicle exhibits particularly sporty driving
characteristics. R
the vehicle pulls away in first gear. R
the automatic transmission shifts up later.
The fuel consumption possibly being higher
as a result of the later automatic transmission
shift points. R
the suspension exhibits particularly stiff
springing and damping settings (vehicles with
AIR BODY CONTROL). R
gliding mode is not available. R
the ECO start/stop function is deactivated
( Y
page 141).
Drive program S (Sport) Drive program S is characterized by the follow-
ing: R
the vehicle exhibits sporty driving character-
istics. R
the vehicle pulls away in first gear. R
the automatic transmission shifts up later.
The fuel consumption possibly being higher
as a result of the later automatic transmission
shift points. R
the suspension exhibits stiff springing and
damping settings (vehicles with
AIR BODY CONTROL). R
gliding mode is not available. R
the ECO start/stop function is activated
( Y
page 141).
Drive program C (Comfort)
Drive program C is characterized by the follow-
ing: R
the vehicle delivers comfortable, economical
handling characteristics. R
the vehicle pulls away more gently in forward
and reverse gears, unless the accelerator
pedal is depressed fully. R
the vehicle has improved driving stability, for
example on slippery road surfaces. R
optimal fuel consumption resulting from the
automatic transmission shifting up sooner.150
Automatic transmission
Driving and parking

The vehicle is driven in the low engine speed
range and the wheels are less likely to spin. R
gliding mode is not available. R
the ECO start/stop function is activated
( Y
page 141).
Drive program E (Economy) Drive program E is characterized by the follow-
ing: R
the vehicle exhibits particularly economical
handling characteristics. R
the vehicle pulls away more gently in forward
and reverse gears, unless the accelerator
pedal is depressed fully. R
the vehicle has improved driving stability, for
example on slippery road surfaces. R
optimal fuel consumption resulting from the
automatic transmission shifting up sooner.
The vehicle is driven in the low engine speed
range and the wheels are less likely to spin. R
during deceleration, the engine is disconnec-
ted from the drive train. The vehicle uses
kinetic energy and consumes less fuel. R
the cooling and heating output of the climate
control system has been reduced. R
gliding mode is available. R
the ECO start/stop function is activated
( Y
page 141).
Mercedes-AMG GLC 63 4MATIC+/GLC
63 S 4MATIC+
Drive program RACE (S ‑ MODEL)The RACE drive program is characterized by the
following: R
the vehicle exhibits driving characteristics
suitable for the racetrack. R
all vehicle systems are set for maximum
sportiness. R
the gearshift recommendation gives you
information for slowly warming up the drive
assemblies and for adopting a fuel-efficient
driving style ( Y
page 152). You can follow the
gearshift recommendations at all times and
shift gear accordingly using the steering
wheel paddle shifters. On the basis of the
gearshift recommendation, using the steering
wheel paddle shifters, you can optimize the
drive train and engine operating mode at any
time. R
if you have selected a gear manually, this will
be maintained until the vehicle speed increa-
ses or decreases dramatically. R
the vehicle pulls away in first gear. R
the automatic transmission shifts up later.
the fuel consumption possibly being higher as
a result of the later automatic transmission
shift points. R
the suspension exhibits particularly hard
springing and damping settings. R
gliding mode is not available. R
the ECO start/stop function is switched off
( Y
page 141).
Drive program S+ (Sport Plus) Drive program S+ is characterized by the fol-
lowing: R
the vehicle exhibits particularly sporty driving
characteristics. R
the vehicle pulls away in first gear. R
the automatic transmission shifts up later.
the fuel consumption possibly being higher as
a result of the later automatic transmission
shift points. R
the suspension exhibits particularly hard
springing and damping settings. R
gliding mode is not available. R
the ECO start/stop function is switched off
( Y
page 141).
Drive program S (Sport) Drive program S is characterized by the follow-
ing: R
the vehicle exhibits sporty driving character-
istics. R
the vehicle pulls away in first gear. R
the automatic transmission shifts up later.
the fuel consumption possibly being higher as
a result of the later automatic transmission
shift points. R
the suspension exhibits stiff springing and
damping settings. R
gliding mode is not available. R
the ECO start/stop function is switched off
( Y
page 141).Automatic transmission 151
Driving and parking Z

G WARNING
If you operate mobile communication equip-
ment when driving, you may be distracted
from the traffic situation. You could also lose
control of the vehicle. There is a risk of an
accident.
Only operate this equipment when the vehicle
is stationary.
Observe the legal requirements for the country
in which you are driving. Some jurisdictions pro-
hibit the driver from using a mobile phone while
driving a vehicle.
If you make a call while driving, always use
hands-free mode. Only operate the telephone
when the traffic situation permits. If you are
unsure, pull over to a safe location and stop
before operating the telephone.
Bear in mind that at a speed of only 30 mph
(approximately 50 km/h), the vehicle covers a
distance of 44 ft (approximately 14 m) per sec-
ond.
Drive sensibly – save fuel Observe the following tips to save fuel: X
The tires should always be inflated to the rec-
ommended tire pressure. X
Remove unnecessary loads. X
Remove roof racks when they are not needed. X
Warm up the engine at low engine speeds. X
Avoid frequent acceleration or braking. X
Have all maintenance work carried out as
indicated by the service intervals in the Main-
tenance Booklet or by the service interval dis-
play.
Fuel consumption also increases when driving in
cold weather, in stop-start traffic and in hilly ter-
rain.
Drinking and driving
G WARNING
Drinking and driving and/or taking drugs and
driving are very dangerous combinations.
Even a small amount of alcohol or drugs can
affect your reflexes, perceptions and judg-
ment. The possibility of a serious or even fatal acci-
dent is greatly increased when you drink or
take drugs and drive.
Do not drink or take drugs and drive or allow
anyone to drive who has been drinking or tak-
ing drugs.
Emission control
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.
Certain engine systems are designed to keep
the level of poisonous components in exhaust
fumes within legal limits.
These systems only work at peak efficiency if
they are serviced exactly in accordance with the
manufacturer's specifications. Always have
work on the engine carried out at a qualified
specialist workshop. Mercedes-Benz recom-
mends that you use an authorized Mercedes-
Benz Center for this purpose. In particular, work
relevant to safety or on safety-related systems
must be carried out at a qualified specialist
workshop.
The engine settings must not be changed under
any circumstances. Furthermore, all specific
service work must be carried out at regular
intervals and in accordance with the Mercedes-
Benz service requirements. Details can be found
in the Maintenance Booklet.
ECO display The ECO display shows you how economical
your driving style is. The ECO display assists you
in achieving the most economical driving style
for the selected settings and prevailing condi-
tions. Your driving style can significantly influ-
ence the vehicle's consumption. Driving tips 161
Driving and parking Z

X
The RACE START Release brake to start
message appears on the multifunction dis-
play.
i In this phase you can adjust RACE START
depending on the road conditions: you can
vary the engine speed by pulling on one of the
steering wheel paddle shifters. The segments
in the multifunction display flicker rapidly.
i If you do not release the brake pedal within
a short time, RACE START will be canceled.
The RACE START Canceled message
appears in the multifunction display. X
Take your foot off the brake, but keep the
accelerator pedal depressed.
The vehicle pulls away at maximum acceler-
ation.
The RACE START Active message appears
on the multifunction display.
RACE START is deactivated when the vehicle
reaches a speed of approximately 30 mph (Can-
ada: 50 km/h).
RACE START is deactivated immediately if you
release the accelerator pedal during RACE
START or if any of the activation conditions are
no longer fulfilled. The RACE START Canceled
message appears in the multifunction display.
i If RACE START is used repeatedly within a
short period of time, it is only available again
after the vehicle has been driven a certain
distance.
AIR BODY CONTROL
General notes AIR BODY CONTROL is an air suspension system
with variable damping for improved driving com-
fort. All-round level control ensures the best
possible suspension and constant ground clear-
ance, even with a laden vehicle. When you drive
fast, the vehicle is lowered automatically to
improve driving safety and to reduce fuel con-
sumption. There is also the option to manually
adjust the vehicle level.
AIR BODY CONTROL consists of: R
air suspension system with variable spring
rate R
automatic level control R
speed-dependent lowering to reduce fuel
consumption R
manual level control R
ADS PLUS (Adaptive Damping System with
continuous damping adjustment) R
DYNAMIC SELECT switch ( Y
page 144) and
level button ( Y
page 185)
Available suspension settings C (Comfort) R
the suspension setting is
comfortable R
the vehicle is set to normal
level R
Mercedes-AMG GLC 43
4MATIC: at speeds above
100 mph (160 km/h), the
vehicle level lowers R
Mercedes-AMG GLC 63
4MATIC+/GLC 63 S
4MATIC+: at speeds above
112 mph (180 km/ h) , the
vehicle level lowers R
All other models: at speeds
above 86 mph, (138 km/h)
the vehicle level lowers R
Mercedes-AMG GLC 43
4MATIC: at speeds less than
87 mph (140 km/h), the
vehicle is raised again R
Mercedes-AMG GLC 63
4MATIC+/GLC 63 S
4MATIC+: at speeds less
than 75 mph (120 km/h),
the vehicle is raised again R
All other models: at speeds
below 50 mph (80 km/h),
the vehicle is raised again R
Mercedes-AMG GLC 63
4MATIC+/GLC 63 S
4MATIC+: the 4MATIC+ is
synchronised dynamically
E (Econ-
omy) R
the suspension setting is
comfortable R
the vehicle is set to low level R
at higher speeds, the vehicle
level does not continue to
lower184
Driving systems
Driving and parking

Displaying th e range an d current fuel
consumption
C
Range of th e fue l supplyD
Curren t fue l consumption

Settings in the climate menu Adjusting the climate mode settings The climate mode determines the type of air-
flow. The setting is active when the air-condi-
tioning system is set to X ( Y
page 128).X
Call up the climate control menu
( Y
page 284). X
To select Climate Mode : turn and press the
controller. X
To change the setting: turn the controller. X
To exit the menu: press the 8 button.
The climate mode bar displays the current air-
flow setting: DIFFUSE , MEDIUM or FOCUS .
Starting/stopping the perfume atomizer The perfume atomizer makes it possible to scent
the air in individual compartments in the vehicle
interior. Further information ( Y
page 132).X
Call up the climate control menu
( Y
page 284). X
To select Air Freshener : turn and press the
controller.
The setting element is active. X
To start/stop the perfume atomizer: press
the controller. X
To set the intensity: turn the controller when
the atomizer is switched on. X
To exit the menu: press the 8 button.
Switching the ionization on/off The ionization has a cleansing effect on the air in
the vehicle interior. Further information
( Y
page 133). X
Call up the climate control menu
( Y
page 284). X
To select Ionization : turn and press the
controller.
The setting element is active. X
To switch the ionization on or off: turn the
controller. X
To exit the menu: press the 8 button.
Activating or deactivating pre-entry cli-
mate control via the SmartKey
This function is available for plug-in hybrid vehi-
cles.
Before getting in, the driver's seat area or the
whole vehicle interior is briefly warmed or ven-
tilated. The air from the vents is pre-cooled. X
Call up the climate control menu
( Y
page 284). X
To select Pre-entry Climate Control
via Key : turn and press the controller. X
To activate or deactivate: turn the control-
ler. X
To exit the menu: press the 8 button.
Activating or deactivating pre-entry cli-
mate control at departure time This function is available for plug-in hybrid vehi-
cles.
The driver's seat and the vehicle interior are
heated or cooled prior to the set departure time. X
Call up the climate control menu
( Y
page 284). X
To select Pre-entry Climate Ctrl. at
Depart. Time : turn and press the controller.
A rotary menu appears. X
To select the setting: turn the controller.X
To exit the menu: press the 8 button.
Settings in the bottom bar of the cli-
mate control menu
Switching cooling with air dehumidifica-
tion on/off X
Call up the climate control menu
( Y
page 284). X
Slide 6 the controller repeatedly until the
bottom bar is activated. X
To select s A/C : turn and press the control-
ler. X
Switch cooling with air dehumidification on
s or off S .
i The current status of the cooling function is
displayed in the climate control bar: A/C ON
– activated, A/C OFF – deactivated.
i Deactivating the cooling with air dehumidi-
fication function reduces fuel consumption.
Synchronizing the climate control set-
tings
Use s Sync (synchronization) to select the cli-
mate control setting for all zones together s or
separately S .Operating system 285
Multimedia system Z

G WARNING
If you fit unsuitable accessories onto tire
valves, the tire valves may be overloaded and
malfunction, which can cause tire pressure
loss. Due to their design, retrofitted tire pres-
sure monitors keep the tire valve open. This
can also result in tire pressure loss. There is a
risk of an accident.
Only screw the standard valve cap or other
valve caps approved by Mercedes-Benz for
your vehicle onto the tire valve.
Use a suitable pressure gauge to check the tire
pressure. The outer appearance of a tire does
not permit any reliable conclusion about the tire
pressure. On vehicles equipped with the elec-
tronic tire pressure monitor, the tire pressure
can be checked in the on-board computer.
The tire temperature and pressure increase
when the vehicle is in motion. This is dependent
on the driving speed and the load.
Therefore, you should only correct tire pres-
sures when the tires are cold.
The tires are cold: R
if the vehicle has been parked with the tires
out of direct sunlight for at least three hours
and R
if the vehicle has not been driven further than
1 mile (1.6 km)
The tire temperature changes depending on the
outside temperature, the vehicle speed and the
tire load. If the tire temperature changes by
18 ‡ (10 †), the tire pressure changes by
approximately 10 kPa (0.1 bar/1.5 psi). Take
this into account when checking the pressure of
warm tires. Only correct the tire pressure if it is
too low for the current operating conditions. If
you check the tire pressure when the tires are
warm, the resulting value will be higher than if
the tires were cold. This is normal. Do not
reduce the tire pressure to the value specified
for cold tires. The tire pressure would otherwise
be too low.
Observe the recommended tire pressures for
cold tires: R
on the Tire and Loading Information placard
on the B-pillar on the driver's side R
in the tire pressure table on the fuel filler flap
( Y
page 352) Underinflated or overinflated tires
Underinflated tires
G WARNING
Tires with pressure that is too low can over-
heat and burst as a consequence. In addition,
they also suffer from excessive and/or irreg-
ular wear, which can severely impair the brak-
ing properties and the driving characteristics.
There is a risk of an accident.
Avoid tire pressures that are too low in all the
tires, including the spare wheel.
Underinflated tires may: R
overheat, leading to tire defects R
adversely affect handling R
wear excessively and/or unevenly R
have an adverse effect on fuel consumption
Overinflated tires
G WARNING
Tires with excessively high pressure can burst
because they are damaged more easily by
road debris, potholes etc. In addition, they
also suffer from irregular wear, which can
severely impair the braking properties and the
driving characteristics. There is a risk of an
accident.
Avoid tire pressures that are too high in all the
tires, including the spare wheel.
Overinflated tires may: R
increase the braking distance R
adversely affect handling R
wear excessively and/or unevenly R
have an adverse effect on ride comfort R
be more susceptible to damage354
Tire pressure
Wheels and tires