2018 MERCEDES-BENZ C-CLASS SEDAN climate control

Suspension tuningSETUP (on-board computer,
Mercedes-AMG vehicles) ............... 227
Switching air-recirculation mode
on/off .................................................1 30
Switching on media mode
Via the device list .......................... 279
T
Tachometer ........................................ 211
Tail lamps
Display message ............................ 242
Tank
see Fuel tank
Tank content
Fuel gauge ....................................... 37
Technical data
Capacities ...................................... 361
Information .................................... 359
Vehicle data ................................... 367
Telephone
Accepting a call (multifunction
steering wheel) .............................. 220
Authorizing a mobile phone (con-
necting) ......................................... 278
Connecting a mobile phone (gen-
eral information) ............................ 277
Display message ............................ 257
Introduction ................................... 220
Menu (on-board computer) ............ 220
Number from the phone book ........ 220
Redialing ........................................ 221
Rejecting/ending a call ................. 220
see also Digital Operator's Man-
ual .................................................. 270
Switching between mobile
phones ........................................... 278
see Mobile phone
Temperature
Coolant (display in the instrument
cluster) .......................................... 211
Engine oil (on-board computer,
Mercedes-AMG vehicles) ............... 226
Outside temperature ...................... 211
Setting (climate control) ................ 128
Transmission oil (on-board com-
puter, Mercedes-AMG vehicles) ..... 226 Through-loading feature
................... 283
Timing (RACETIMER) ......................... 228
Tire pressure
Calling up (on-board computer) ..... 340
Checking manually ........................ 339
Display message ............................ 252
Maximum ....................................... 339
Not reached (TIREFIT) .................... 321
Notes ............................................. 337
Reached (TIREFIT) .......................... 321
Recommended ............................... 336
Using the TIREFIT kit ...................... 320
Tire pressure loss warning system
General notes ................................ 339
Important safety notes .................. 339
Restarting ...................................... 340
Tire pressure monitor
Checking the tire pressure elec-
tronically ........................................ 342
Function/notes ............................. 340
Genera l note
s ................................ 340
Important safety notes .................. 340
Radio type approval for the tire
pressure monitor ........................... 343
Restarting ...................................... 342
Warning lamp ................................. 268
Warning message .......................... 342
Tire pressure sensors
Display message ............................ 253
Tire-change tool kit ........................... 317
TIREFIT kit
Important safety notes .................. 319
Storage location ............................ 317
Tire pressure not reached .............. 321
Tire pressure reached .................... 321
Using ............................................. 320
Tires
Aspect ratio (definition) ................. 352
Average weight of the vehicle
occupants (definition) .................... 350
Bar (definition) ............................... 350
Changing a wheel .......................... 352
Characteristics .............................. 350
Checking ........................................ 334
Curb weight (definition) ................. 351
Definition of terms ......................... 350
Direction of rotation ...................... 353
Display message ............................ 252
22Index

Cockpit
FunctionPage
:Steering wheel paddle shift-
ers152
;Combination switch114
=Horn
?Instrument cluster37
ADIRECT SELECT lever146
BClimate control systems124
COverhead control panel42
DControl panel for multimedia
system and vehicle functions39
EIgnition lock136
Start/Stop button137
FAdjusts the steering wheel105
GCruise control lever170
HElectric parking brake162
FunctionPage
IDiagnostics connection32
JOpens the hood303
KLight switch113
LControl panel for:
YActivating Distance
Pilot DISTRONIC with Steer-
ing Pilot
177
Ç Switching on Active
Lane Keeping Assist207
c Deactivating Parking
Assist PARKTRONIC190
Ô Switching on the 360°
camera194
Switching on the head-up
display213
Vehicles without a driver
assistance system: map/
coin holder
36Cockpit
At a glance

Center console
Center console, upper section
FunctionPage
:Climate control systems124
;£Hazard warning lamps115
=ØVehicle functions/
system settings button (see
Digital Operator's Manual)
?% Telephone button (see
Digital Operator's Manual)
APASSENGER AIRBAG indica-
tor lamps45
ATA indicator lamp76
FunctionPage
BAnalog clock
CÕ Media button (see Dig-
ital Operator's Manual)
D$ Radio button (see Digi-
tal Operator's Manual)
EØ Navigation button (see
Digital Operator's Manual)
Fþ Inserts or ejects a CD
or DVD (see Digital Opera-
tor's Manual)
Center console39
At a glance

Overview of climate control systems
General notes
Observe the settings recommended on the fol-
lowing pages. The windows could otherwise fog
up.
To prevent the windows from fogging up:
Rswitch off climate control only briefly
Rswitch on air-recirculation mode only briefly
Rswitch on the cooling with air dehumidifica-
tion function
Ractivate the "Windshield defrosting" function
briefly, if required
Climate control regulates the temperature and
air humidity in the vehicle interior. The interior
filter cleans the air, thus improving the interior
climate.
The "Cooling with air dehumidification" function
is only available when the engine is running.
Optimum climate control is only achieved with
the side windows and roof closed.
If you start the engine using your smartphone,
the last selected climate control setting is reac-
tivated (
Ypage 139).
The residual heat function can only be activated
or deactivated with the ignition switched off
(
Ypage 131). The integrated filter filters out most particles of
dust and soot and completely filters out pollen.
It also reduces gaseous pollutants and odors. A
clogged filter reduces the amount of air suppliedto the vehicle interior. For this reason, you
should always observe the interval for replacing
the filter, which is specified in the Maintenance
Booklet. As it depends on environmental condi-
tions, e.g. heavy air pollution, the interval may
be shorter than stated in the Maintenance Book-
let.
iVentilate the vehicle for a brief period during
warm weather, e.g. using the convenience
opening feature (
Ypage 92). This will speed
up the cooling process and the desired inte-
rior temperature will be reached more
quickly.
iIt is possible that the blower may be activa-
ted automatically 60 minutes after the Smart-
Key has been removed depending on various
factors, e.g. the outside temperature. The
vehicle is then ventilated for 30 minutes to dry
the automatic climate control.
iHybrid vehicles: be sure to observe the
notes in the supplement. Otherwise, you may
not recognize dangers.
Control panel for dual-zone automatic climate control
Example: control panel for dual-zone automatic climate control
:
Sets the temperature, left (Ypage 128)
;Sets the air distribution (Ypage 128)
124Overview of climate control systems
Climate control

=Sets the airflow (Ypage 128)
Switches off climate control (
Ypage 126)
?Sets climate control to automatic (Ypage 127)
ADefrosts the windshield (Ypage 129)
BCalls up the climate control menu of the multimedia system (Ypage 275)
CSwitches the rear window defroster on/off (Ypage 130)
DActivates or deactivates synchronization (Ypage 129)
ESwitches air-recirculation mode manually on/off (Ypage 130)
FSwitches cooling with air dehumidification on/off (Ypage 127)
GSets the temperature, right (Ypage 128)
Control panel for 3-zone automatic climate control
Example for vehicles in Canada only: control panel for 3-zone automatic climate control
Front control panel
:Sets the temperature, left (Ypage 128)
;Sets the air distribution, left (Ypage 128)
=Sets the airflow (Ypage 128)
Switches off climate control (
Ypage 126)
?Sets climate control to automatic (Ypage 127)
ADefrosts the windshield (Ypage 129)
BCalls up the climate control menu of the multimedia system (Ypage 275)
Switches the residual heat on/off (
Ypage 131)
CSwitches the rear window defroster on/off (Ypage 130)
DSwitches cooling with air dehumidification on/off (Ypage 127)
ESwitches air-recirculation mode manually on/off (Ypage 130)
FSets the air distribution, right (Ypage 128)
GSets the temperature, right (Ypage 128)
Rear control panel
HSets the temperature (Ypage 128)
Overview of climate control systems125
Climate control

IDisplay
JSets the airflow (Ypage 128)
Optimum use of automatic climate
control
Optimum use of the automatic climate
control
The following contains notes and recommenda-
tions on how best to use dual-zone automatic
climate control or 3-zone automatic climate
control (vehicles in Canada only).
XActivate climate control using the Ã
rocker switch. The indicator lamp above the
à rocker switch lights up. The "Cooling
with dehumidification" function is activated in
automatic mode.
XSet the temperature to 72 ‡ (22 †).
iOnly use the "Windshield defrosting" func-
tion briefly until the windshield is clear again.
iOnly use air-recirculation mode briefly, e.g.
if there are unpleasant outside odors or when
in a tunnel. The windows could otherwise fog
up, since no fresh air is drawn into the vehicle in air-recirculation mode.
Vehicles with 3-zone automatic climate control:
use the "Residual heat" function if you want to
heat or ventilate the vehicle interior when the
ignition is switched off. The residual heat func-
tion can only be activated or deactivated with
the ignition switched off. The residual heat func-
tion is switched off when the ignition is switched on.
DYNAMIC SELECT switch (except
Mercedes-AMG C 63 /C63S)
You can choose between various drive programs
with the DYNAMIC SELECT switch
(
Ypage 144).
If you have selected drive program E:
Rwhen heating, the electrical heater booster is
deactivated and heat output is reduced as a
result
Rthe rear window defroster running time is
reduced If you have selected drive program
C,Sor S+,
the current climate settings are maintained.
ECO start/stop function
During automatic engine switch-off, the climate
control system only operates at a reduced capa-
city. If you require the full climate control output,
you can switch off the ECO start/stop function
by pressing the ECO button (
Ypage 141).
Operating the climate control sys-
tems
Activating/deactivating climate con-
trol
General notes
When the climate control is switched off, the air
supply and air circulation are also switched off.
The windows could fog up. Therefore, switch off
climate control only briefly
Switch on climate control primarily using the
à rocker switch (
Ypage 127).
Activating/deactivating
XTurn the SmartKey to position 2in the igni-
tion lock (Ypage 136).
XTo switch on: set the airflow to level 1or
higher using the Hrocker switch.
XTo switch off: set the airflow to level 0using
the H rocker switch.
i3-zone automatic climate control: when cli-
mate control is switched off, "OFF" appears in
the rear-compartment display.
126Operating the climate control systems
Climate control

Switching cooling with air dehumidification on/off
General notes
If you deactivate the "Cooling with air-dehumidification" function, the air inside the vehicle will not
be cooled. The air inside the vehicle will also not be dehumidified. The windows can fog up more
quickly. Therefore, only deactivate the "Cooling with air-dehumidification" function briefly.
The "Cooling with air dehumidification" function is only available when the engine is running. The air
inside the vehicle is cooled and dehumidified according to the temperature selected.
Condensation may drip from the underside of the vehicle when it is in cooling mode. This is normal
and not a sign that there is a malfunction.
Activating/deactivating
XPress the ¿rocker switch up or down.
The indicator lamp above the rocker switch lights up or goes out.
Problems with the "Cooling with air dehumidification" function
ProblemPossible causes/consequences and MSolutions
The indicator lamp above
the¿ rocker switch
remains off. The cooling
with air dehumidification
function cannot be acti-
vated via the multimedia
system any longer
(
Ypage 276).
Cooling with air dehumidification has been deactivated due to a mal-
function.
XVisit a qualified specialist workshop.
Setting climate control to automatic
General notes
In automatic mode, the set temperature is main-
tained automatically at a constant level. The
system automatically regulates the temperature
of the dispensed air, the airflow and the air dis-
tribution.
During automatic controlling, the "Cooling with
air dehumidification" function is activated.
Automatic control
XTurn the SmartKey to position 2in the igni-
tion lock (Ypage 136).
XTo activate: press theÃrocker switch up
or down.
The indicator lamp above the Ãrocker
switch lights up.
XSet the desired temperature using the w
rocker switch on the front control unit.
XTo switch to manual operation: press the
H rocker switch up or down.
or
XPress the _rocker switch up or down.
The indicator lamp above the Ãrocker
switch goes out.
In automatic mode, if you adjust the airflow or
air distribution manually, the indicator lamp
above the Ãrocker switch goes out. The
function which has not been changed manually,
however, continues to be controlled automati-
cally. When the manually set function switches
back to automatic mode, the indicator lamp
above the Ãrocker switch lights up again.
Adjusting the climate mode settings
This function is only available with 3-zone auto-
matic climate control on vehicles for Canada.
Operating the climate control systems127
Climate control

In automatic mode you can select the following
airflow settings for the driver's and front-
passenger areas:
FOCUS high airflow, slightly cooler setting
MEDIUM medium airflow, standard setting
DIFFUSE low airflow, slightly warmer and draft-free setting
XTo set:set the climate mode using the mul-
timedia system (Ypage 275).
Setting the temperature
Dual-zone automatic climate control
Dual-zone automatic climate control: different
temperatures can be set for the driver's and
front-passenger sides.
XTurn the SmartKey to position 2in the igni-
tion lock (Ypage 136).
XTo increase or reduce: press thew
rocker switch up or down.
Only change the temperature setting in small
increments. Start at 72 ‡ (22 †).
Dual-zone automatic climate control
General notes
3-zone automatic climate control is available
only for vehicles in Canada.
You can select different temperature settings
for the driver's and front-passenger sides as well as for the rear compartment.
Setting the temperature in the front com-
partment using the front control panel
XTurn the SmartKey to position 2in the igni-
tion lock (Ypage 136).
XTo increase or reduce: press rocker switch
w up or down.
Only change the temperature setting in small
increments. Start at 72 ‡ (22 †).
Setting the temperature in the rear com-
partment using the rear control panel
XTurn the SmartKey to position 2in the igni-
tion lock (Ypage 136).
XTo increase or reduce: press thew
rocker switch on the rear control panel up or
down (
Ypage 125). Only change the temperature setting in small
increments. Start at 72 ‡ (22 †).
The set temperature appears on the rear-
compartment display.
Setting the air distribution
Air distribution settings
¯ Directs air through the defroster vents
P Directs air through the center and side air
vents
O Directs air through the footwell air vents
S Directs air through the center, side and
footwell vents
a Directs air through the defroster and
footwell vents
_ Directs air through the defroster, center,
side and footwell vents
b Directs air through the defroster, center
and side air vents
W Sets the air distribution to automatic
Setting
3-zone automatic climate control (vehicles in
Canada only): you can set the air distribution
separately for the driver's and front-passenger
sides.
XTurn the SmartKey to position 2
(Ypage 136).
XPress the _rocker switch up or down.
The various air distribution settings appear in
the multimedia system.
Setting the airflow
Setting the front-compartment airflow
XTurn the SmartKey to position 2in the igni-
tion lock (Ypage 136).
XTo increase or reduce: press rocker switch
H up or down.
Setting the rear compartment airflow
using the rear control panel
It is possible to set the airflow using the rear
control panel only on vehicles with 3-zone auto-
matic climate control for Canada.
128Operating the climate control systems
Climate control