
Control panel for dual-zone auto-
mat ic clim ate control .................... .1 24
Controlling automatically .............. .1 28
Cooling with air dehumidification .. 128
Cooling with air dehumidification
(multimedia system) ..................... .2 85
Defrosting the windows ................. 130
Defrosting the windshield .............. 130
ECO start/stop function ................ 127
General notes ................................ 124
Indicator lamp ................................ 128
Ionization ....................................... 133
Ionization (multimedia system) ...... 285
Notes on using the automatic cli-
mate control .................................. 126
Overview ........................................ 284
Overview of systems ..................... .1 24
Perfume atomizer .......................... 132
Perfume atomizer (multimedia
system) .......................................... 285
Pre-entry climate control (via key)
(multimedia system) ..................... .2 85
Pre-entry climate control at
departure time (multimedia sys-
tem) ............................................... 285
Problem with the rear window
defroster ........................................ 131
Problems with cooling with air
dehumidification ............................ 128
Rear control panel ......................... 125
Refrigerant ..................................... 381
Refrigerant filling capacity ............. 382
Setting the air distribution ............. 129
Setting the air vents ..................... .1 33
Setting the airflow ......................... 129
Setting the climate mode .............. .1 28
Setting the climate mode (multi-
media system) ............................... 285
Setting the temperature ................ 128
Switching air-recirculation mode
on/off ............................................ 131
Switching on/off ........................... 127
Switching residual heat on/off ...... 131
Switching the rear window
defro ster on/off ............................ 130
Sw i
tching the synchronization
function on and off ........................ 130 Synchronization function (multi-
media system) ............................... 285
Climate control settings
Multimedia system ........................ 284
Climate control system
Climate control .............................. 127
Coat hooks ......................................... 299
Cockpit
Overview .......................................... 36
Code for Apps
see QR code
COMAND display
Cleaning ......................................... 329
Combination switch .......................... 113
Connecting a USB device
see also Digital Operator's Man-
ual ................................................. .2 80
Consumption statistics (on-board
computer) .......................................... 225
Controller .......................................... .2 81
Controlling the speed
see Distance Pilot DISTRONIC
Convenience closing feature .............. 92
Convenience opening feature ............ 92
Coolant (engine)
Checking the level ......................... 322
Display message ............................ 252
Filling capacity ............................... 381
Important safety notes .................. 380
Temperature display in the instru-
ment cluster .................................. 221
Warning lamp ................................. 275
Cooling
see Climate control
Copyright ............................................. 35
Cornering light function
Display message ............................ 251
Function/notes ............................ .1 14
Crosswind Assist ................................. 73
Cruise control
Cruise control lever ....................... 169
Deactivating ................................... 170
Display message ............................ 261
Driving system ............................... 169
Function/notes ............................ .1 69
General notes ................................ 169
Important safety notes .................. 1698
Index

Speed rating The speed rating is part of the tire identification.
It specifies the speed range for which the tire is
approved.
GVW (Gross Vehicle Weight) The gross vehicle weight includes the weight of
the vehicle including fuel, tools, the spare wheel,
accessories installed, occupants, luggage and
the drawbar noseweight, if applicable. The gross
vehicle weight must not exceed the gross vehi-
cle weight rating GVWR as specified on the vehi-
cle identification plate on the B-pillar on the
driver's side.
GVWR (Gross Vehicle Weight Rating) The GVWR is the maximum permissible gross
weight of a fully loaded vehicle (the weight of the
vehicle including all accessories, occupants,
fuel, luggage and the drawbar noseweight, if
applicable). The gross vehicle weight rating is
specified on the vehicle identification plate on
the B-pillar on the driver's side.
Maximum loaded vehicle weight The maximum weight is the sum of: R
the curb weight of the vehicle R
the weight of the accessories R
the load limit R
the weight of the factory installed optional
equipment
Kilopascal (kPa) Metric unit for tire pressure. 6.9 kPa corre-
sponds to 1 psi. Another unit for tire pressure is
bar. 100 kilopascals (kPa) are the equivalent of
1 bar.
Load index
In addition to the load-bearing index, the load
index may also be imprinted on the sidewall of
the tire. This specifies the load-bearing capacity
more precisely.
Curb weight
The weight of a vehicle with standard equipment
including the maximum capacity of fuel, oil and
coolant. It also includes the air-conditioning sys-
tem and optional equipment if these are instal-
led in the vehicle, but does not include passen-
gers or luggage. Maximum load rating The maximum tire load is the maximum permis-
sible weight in kilograms or lbs for which a tire is
approved.
Maximum permissible tire pressure Maximum permissible tire pressure for one tire.
Maximum load on one tire Maximum load on one tire. This is calculated by
dividing the maximum axle load of one axle by
two.
PSI (pounds per square inch) A standard unit of measure for tire pressure.
Aspect ratio Relationship between tire height and tire width
in percent.
Tire pressure This is pressure inside the tire applying an out-
ward force to each square inch of the tire's sur-
face. The tire pressure is specified in pounds per
square inch (psi), in kilopascal (kPa) or in bar.
The tire pressure should only be corrected when
the tires are cold.
Cold tire pressure 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)
Tread
The part of the tire that comes into contact with
the road.
Bead
The tire bead ensures that the tire sits securely
on the wheel. There are several steel wires in the
bead to prevent the tire from coming loose from
the wheel rim.
Sidewall
The part of the tire between the tread and the
bead.368
All about wheels and tires
Wheels and tires

For a list of approved engine oils and oil filters,
consult an authorized Mercedes-Benz Center.
Or visit the website
http://bevo.mercedes-benz.com.
The table shows which engine oils have been
approved for your vehicle.
Model MB-Freigabe or
MB-Approval
Mercedes-AMG vehicles
229.5
All other models
229.5, 229.6
Use only SAE 0W-40 or SAE 5W-40 engine oils
for Mercedes-AMG vehicles.
i MB approval is indicated on the oil contain-
ers.
Filling capacities The following values refer to an oil change
including the oil filter.
Model Capacity
Mercedes-AMG
GLC 63 4MATIC+
Mercedes-AMG
GLC 63 S 4MATIC+ 9.5 US qt (9.0 l)
Al l ot her models
6.9 US qt (6.5 l)
Ad ditives
! Do not use any additives in the engine oil.
This could damage the engine.
Brake fluid
G WARNING
The brake fluid constantly absorbs moisture
from the air. This lowers the boiling point of
the brake fluid. If the boiling point of the brake
fluid is too low, vapor pockets may form in the
brake system when the brakes are applied
hard. This would impair braking efficiency.
There is a risk of an accident.
You should have the brake fluid renewed at
the specified intervals. When handling brake fluid, observe the impor-
tant safety notes on service products
( Y
page 377).
The brake fluid change intervals can be found in
the Maintenance Booklet.
Only use brake fluid approved by Mercedes-
Benz in accordance with MB-Freigabe or MB-
Approval 331.0.
Information about approved brake fluid can be
obtained at any qualified specialist workshop or
on the Internet at
http://bevo.mercedes-benz.co m.
i Have the brake fluid regularly replaced at a
qualified specialist workshop in accordance
with the replacement intervals and the
replacement confirmed in the Maintenance
Booklet.
Coolant
Important safety notes
G WARNING
If antifreeze comes into contact with hot com-
ponents in the engine compartment, it may
ignite. There is a risk of fire and injury.
Let the engine cool down before you add anti-
freeze. Make sure that antifreeze is not spilled
next to the filler neck. Thoroughly clean the
antifreeze from components before starting
the engine.
! Only add coolant that has been premixed
with the desired antifreeze protection. You
could otherwise damage the engine.
Further information on coolants can be found
in the Mercedes-Benz Specifications for Ser-
vice Products, MB BeVo 310.1, e.g. on the
Internet at
http://bevo.mercedes-benz.com . Or con-
tact a qualified specialist workshop.
! Always use a suitable coolant mixture, even
in countries where high temperatures prevail.
Otherwise, the engine cooling system is not
sufficiently protected from corrosion and
overheating.
i Have the coolant regularly replaced at a
qualified specialist workshop and the replace-
ment confirmed in the Maintenance Booklet.380
Service products and filling capacities
Technical data

Comp ly wit h the impo rtant safety notes for ser-
vice products when han dlin g coolant
( Y
page 377).
The coolant is a mixture of water and ant i-
freeze/corrosion inh ibit or. It performs the fol-
lowin g tasks: R
anti-corrosion protection R
antifreeze protection R
raising the boilin g poin t
If the coolant has antifreeze protection down to
-35 ‡ (-37 †), the boilin g poin t of the coolant
during operation is appr oximately 266 ‡
(130 †).
The antifreeze concentrate /c orrosion inh ibit or
concentration in the engine co olin g system
sho uld: R
be at least 50 %. This will protect the engine
co olin g system against freezing down to
approximate ly -35 ‡ (-37 †).R
not exceed 55% (antifreeze protection down
to -49 ‡[ -45 †]). Otherwise, heat will not be
dissipated as effectively
Mercedes-Benz recommends an antifreeze/
corrosion inhibitor concentrate in accordance
with MB Specifications for Service Products
310.1.
i When the vehicle is first delivered, it is filled
with a coolant mixture that ensures adequate
antifreeze and anti-corrosion protection.
i The coolant is checked with every mainte-
nance interval at a qualified specialist work-
shop.
Filling capacities Model Capacity
Mercedes-AMG
GLC 43 4MATIC 12.2 US qt (11.5 l)
Mercedes-AMG
GLC 63 4MATIC+
Mercedes-AMG
GLC 63 S 4MATIC+ 11.7 US qt (11.1 l)
Al l ot her models
12.7 US qt (12.0 l) Windshield washer system
Important safety notes
G WARNING
Windshield washer concentrate could ignite if
it comes into contact with hot engine compo-
nents or the exhaust system. There is a risk of
fire and injury.
Make sure that no windshield washer con-
centrate is spilled next to the filler neck.
! Only use washer fluid that is suitable for
plastic lamp lenses, e.g. MB SummerFit or MB
WinterFit. Unsuitable washer fluid could dam-
age the plastic lenses of the headlamps.
! Only MB SummerFit and MB WinterFit
washer fluid should be mixed together. The
spray nozzles may otherwise become
blocked.
Do not use distilled or de-ionized water. Other-
wise, the level sensor may give a false reading.
When handling washer fluid, observe the impor-
tant safety notes on service products
( Y
page 377).
At temperatures above freezing: X
Fill the washer fluid reservoir with a mixture of
water and windshield washer fluid, e.g. MB
SummerFit.
Add 1 part MB SummerFit to 100 parts water.
At temperatures below freezing: X
Fill the washer fluid reservoir with a mixture of
water and washer fluid, e.g. MB WinterFit.
For the correct mixing ratio refer to the infor-
mation on the antifreeze reservoir.
i Add windshield washer fluid, e.g. MB Sum-
merFit or MB WinterFit, to the washer fluid all
year round.
Climate control system refrigerant
Important safety notes
The climate control system of your vehicle is fil-
led with refrigerant R ‑ 134a.
The instruction label regarding the refrigerant
type used can be found on the radiator cross
member.Service products and filling capacities 381
Technical data Z