heating MERCEDES-BENZ B-Class 2017 W246 Owner's Manual

Generated electrical energy (Audio
20) ...................................................... 120
Genuine parts ...................................... 22
Glove box ........................................... 208
Google™ Local Search
see also Digital Operator's Man-
ual .................................................. 201 H
Handbrake see Parking brake
Hazard warning lamps
Display messag e............................ 188
Switching on/of f.............................. 89
Head restraints
Adjusting ......................................... 80
Adjusting (manually) ........................ 81
Adjusting (rear) ................................ 81
Headlamps
Fogging up ....................................... 89
see Automatic headlamp mode
Heating
see Climate control
High beam flasher ............................... 88
High-beam headlamps
Display message ............................ 179
Replacing bulb s............................... 92
Switching on/of f.............................. 88
High-voltage battery
Battery care ................................... 119
Charging (charging station) ............ 125
Charging (mains socket) ................ 122
Charging cable warming ................ 118
Cruise rang e.................................. 120
Discharged battery ........................ 119
Display message ............................ 181
Displaying energy consumption
(on-board computer) ...................... 158
Displaying the range (on-board
computer) ...................................... 158
Energy consumption ...................... 120
General notes ................................ 118
Method of operation ...................... 119
Outside temperatures .................... 119
Overvoltage protection .................. 118
Problems with the charging proc-
ess ................................................. 126 Reserve, warning lamp ................... 199
Terms of use .................................. 119
High-voltage disconnect device ......... 26
Hill start assist .................................. 111
HOLD function
Activating ....................................... 138
Deactivating ................................... 138
Display message ............................ 182
Function/note s............................. 138
Home address
see also Digital Operator's Man-
ual.................................................. 201
Hood
Closing ........................................... 232
Display message ............................ 187
Important safety notes .................. 231
Opening ......................................... 231
Horn ...................................................... 31
Hydroplaning ..................................... 135 I
Ignition lock see Key positions
Immobilizer .......................................... 64
Indicator lamps
see Warning and indicator lamps
Indicators
see Turn signals
Instrument cluster
Overview .......................................... 32
Power display ................................ 153
Setting s......................................... 165
Warning and indicator lamps ........... 32
Instrument cluster lighting .............. 152
Interior lighting
Control ............................................. 90
Overview .......................................... 89
Reading lamp ................................... 89
Internet connection
Via mobile service modul e............. 128
iPod ®
see also Digital Operator's Man-
ual .................................................. 201 10
Index

Reverse gear
Engaging ........................................ 112
Reversing feature
Side windows ................................... 75
Roadside Assistance (breakdown) .... 24
Roof carrier ........................................ 215
Roof lining and carpets (cleaning
guidelines) ......................................... 240
Roof load (maximum) ........................ 286
Route guidance
see also Digital Operator's Man-
ual .................................................. 201 S
Safety Children in the vehicle ..................... 52
see Occupant safety
Safety notes
High voltage ..................................... 25
High-voltage electrical system ......... 25
Safety system
see Driving safety systems
SD card
Inserting ........................................ 206
Inserting/removing ........................ 206
Removing ....................................... 206
SD memory card
see also Digital Operator's Man-
ual .................................................. 201
Search & Send
see also Digital Operator's Man-
ual .................................................. 201
Seat belts
Adjusting the height ......................... 42
center rear-compartment sea t......... 42
Cleaning ......................................... 239
Correct usage .................................. 41
Fastening ......................................... 42
Important safety guidelines ............. 40
Introduction ..................................... 40
Releasing ......................................... 42
Warning lamp ................................. 190
Warning lamp (function) ................... 42
Seats
Adjusting (electrically) ..................... 80
Adjusting the 4-way lumbar sup-
port .................................................. 81 Adjusting the head restraint ............ 80
Cleaning the cover ......................... 239
Correct driver's seat position ........... 79
Folding the backrest (rear com-
partment) forwards/back .............. 211
Important safety notes .................... 79
Seat heating problem ...................... 82
Storing settings (memory func-
tion) ................................................. 86
Switching seat heating on/of f......... 82
Securing cargo .................................. 212
Selector lever
Cleaning ......................................... 239
see DIRECT SELECT lever
Sensors (cleaning instructions) ....... 237
Service menu (on-board com-
puter) .................................................. 163
Service message
see ASSYST PLUS
Service products
Brake fluid ..................................... 284
Coolant (engine) ............................ 284
Important safety notes .................. 283
Refrigerant (air-conditioning sys-
tem) ............................................... 285
Washer fluid ................................... 285
Setting the air distribution ............... 102
Setting the airflow ............................ 102
Setting the date/time format
see also Digital Operator's Man-
ual .................................................. 201
Setting the language
see also Digital Operator's Man-
ual .................................................. 201
Setting the maximum charge cur-
rent (Control system) ........................ 165
Setting the time
see also Digital Operator's Man-
ual .................................................. 201
Settings
Factory (on-board computer) ......... 166
On-board compute r....................... 163
Side impact air bag ............................. 45
Side marker lamp (display mes-
sage) ................................................... 179
Side windows
Cleaning ......................................... 236 Index
15

Center console
Center console, upper section
Function Page
0043
Multimedia system (see the
separate operating instruc-
tions)
0044
0072
Seat heating 82
0087
008F
Parking Assist
PARKTRONIC 141
0085
Activates RANGE PLUS 120 Function Page
0083
002F
Hazard warning lamps 89
0084
PASSENGER AIR BAG indica-
tor lamp 39
006B
Selects the drive program 114
006C
003B
Pre-entry climate con-
trol 10534
Center consoleAt a glance

Problem
Possible causes/consequences and
0050
0050Solutions KEYLESS-GO is malfunctioning.
X Lock/unlock the vehicle using the remote control function of the
SmartKey.
X Have the vehicle and SmartKey checked at a qualified specialist
workshop.
If the vehicle can also not be locked/unlocked using the remote con-
trol function:
X Unlock (Y page 73) or lock (Y page 73) the vehicle using the
mechanical key.
X Have the vehicle and SmartKey checked at a qualified specialist
workshop. The drive system cannot
be started using the
SmartKey. The on-board voltage is too low.
X Switch off non-essential consumers, e.g. seat heating or interior
lighting, and try to start the drive system again.
If this does not work:
X Check the 12 V battery and charge it if necessary (Y page 248).
or
X Check the high-voltage battery and charge it if necessary
(Y page 118).
or
X Jump-start the vehicle (Y page 249).
or
X Consult a qualified specialist workshop. The drive system cannot
be started using the
Start/Stop button. The
SmartKey is in the vehi-
cle. The vehicle is locked.
X Unlock the vehicle and try to start the vehicle again. The SmartKey battery is discharged or nearly discharged.
X Check the SmartKey battery (Y page 69) and replace it if necessary
(Y page 69).
If this does not work: X Start your vehicle with the SmartKey in the ignition lock. There is interference from a powerful source of radio waves.
X Start your vehicle with the SmartKey in the ignition lock. You have lost a Smart-
Key. X
Have the SmartKey deactivated at a qualified specialist workshop.
X Report the loss immediately to the vehicle insurers.
X If necessary, have the locks changed as well. You have lost the
mechanical key. X
Report the loss immediately to the vehicle insurers.
X If necessary, have the locks changed as well. SmartKey
71Opening and closing Z

motion. This could cause you to lose control of
the vehicle. There is a risk of an accident.
Always make sure that the driver's seat is
engaged before starting the vehicle. G
WARNING
You could lose control of your vehicle if you do the following while driving:
R adjust the driver's seat, head restraint,
steering wheel or mirrors
R fasten the seat belt
There is a risk of an accident.
Adjust the driver's seat, head restraint, steer-
ing wheel and mirror and fasten your seat belt before starting the vehicle's drive system. G
WARNING
If you adjust the seat height carelessly, you or other vehicle occupants could be trapped andthereby injured. Children in particular could
accidentally press the electrical seat adjust-
ment buttons and become trapped. There is a
risk of injury.
While moving the seats, make sure that your
hands or other body parts do not get under the
lever assembly of the seat adjustment sys-
tem.
! To avoid damage to the seats and the seat
heating, observe the following information:
R keep liquids from spilling on the seats. If
liquid is spilled on the seats, dry them as
soon as possible.
R if the seat covers are damp or wet, do not
switch on the seat heating. The seat heat-
ing should also not be used to dry the seats.
R clean the seat covers as recommended;
see the "Interior care" section.
R do not transport heavy loads on the seats.
Do not place sharp objects on the seat
cushions, e.g. knives, nails or tools. The
seats should only be occupied by passen-
gers, if possible.
R when the seat heating is in operation, do
not cover the seats with insulating materi-
als, e.g. blankets, coats, bags, seat covers,
child seats or booster seats. !
Make sure that there are no objects in the
footwell under or behind the seats when mov-
ing the seats back. There is a risk that the
seats and/or the objects could be damaged.
i Further related subjects:
R cargo compartment enlargement (folding
down the rear seats) (Y page 211) Adjusting the seats electrically
0043
Seat height
0044 Seat cushion angle
0087 Seat fore-and-aft adjustment
0085 Backrest angle
i You can store the seat settings using the
memory function (Y page 85). Adjusting the head restraints
Important safety notes G
WARNING
You could lose control of your vehicle if you do the following while driving:
R adjust the driver's seat, head restraint,
steering wheel or mirrors
R fasten the seat belt
There is a risk of an accident.
Adjust the driver's seat, head restraint, steer-
ing wheel and mirror and fasten your seat belt before starting the vehicle's drive system. G
WARNING
If the head restraints are not installed or not
adjusted correctly, they cannot provide pro- 80
SeatsSeats, steering wheel and mirrors

0043
Raises the backrest contour
0044 Softens the backrest contour
0087 Lowers the backrest contour
0085 Hardens the backrest contour Switching the seat heating on/off
Switching on/off G
WARNING
Repeatedly switching on the seat heating can
cause the seat cushion and backrest pads to
become very hot. The health of persons with
limited temperature sensitivity or a limited
ability to react to excessively high tempera-
tures may be affected or they may even suffer burn-like injuries. There is a risk of injury.
Therefore, do not switch the seat heating on
repeatedly. The three red indicator lamps in the button indi-
cate the heating level you have selected.
The system automatically switches down from
level 3to level 2after approximately eight
minutes.
The system automatically switches down from
level 2to level 1after approximately ten
minutes.
The system automatically switches off approx-
imately 20 minutes after it is set to level 1.
X Turn the SmartKey to position 1or 2in the
ignition lock (Y page 109).
X To switch on: press button0043repeatedly
until the desired heating level is set.
X To switch off: press button0043repeatedly
until all the indicator lamps go out.
i If the battery voltage is too low, the seat
heating may switch off.
Problems with the seat heating Problem
Possible causes/consequences and
0050 0050Solutions The seat heating has
switched off prematurely
or cannot be switched
on. The on-board voltage is too low because too many electrical consum-
ers are switched on.
X Switch off electrical consumers that you do not need, such as the
rear window defroster or interior lighting.
Once the battery is sufficiently charged, the seat heating will switch
back on automatically. 82
SeatsSeats
, steering wheel and mirrors

Exterior mirrors
Adjusting the exterior mirrors G
WARNING
You could lose control of your vehicle if you do the following while driving:
R adjust the driver's seat, head restraint,
steering wheel or mirrors
R fasten the seat belt
There is a risk of an accident.
Adjust the driver's seat, head restraint, steer-
ing wheel and mirror and fasten your seat belt before starting the vehicle's drive system. G
WARNING
The exterior mirror on the front-passenger
side reduces the size of the image. Visible
objects are actually closer than they appear.
This means that you could misjudge the dis-
tance from road users traveling behind, e.g.
when changing lane. There is a risk of an acci-
dent.
For this reason, always make sure of the
actual distance from the road users traveling
behind by glancing over your shoulder. X
Turn the SmartKey to position 1or 2in the
ignition lock (Y page 109).
X Exterior mirror on the front-passenger side:
press button 0044.
Exterior mirror on the driver's side: press but- ton 0043.
The indicator lamp in the corresponding but-
ton lights up in red.
The indicator lamp goes out again after some
time. You can adjust the selected exterior mirror using button
0087as long as the indicator
lamp is lit.
X Press button 0087up, down, or to the right or
left until you have adjusted the exterior mirror
to the correct position. You should have a
good overview of traffic conditions.
The convex exterior mirrors provide a larger field
of vision.
After the engine has been started, the exterior
mirrors are automatically heated at low outside temperatures. Heating takes a maximum of ten
minutes.
i You can also heat up the exterior mirrors
manually by switching on the rear window
defroster.
Exterior mirror pushed out of position If an exterior mirror has been pushed out of
position, proceed as follows:
X Move the exterior mirror into the correct posi-
tion manually. Automatic anti-glare mirrors
G
WARNING
Electrolyte may escape if the glass in an auto- matic anti-glare mirror breaks. The electrolyte
is harmful and causes irritation. It must not
come into contact with your skin, eyes, res-
piratory organs or clothing or be swallowed.
There is a risk of injury.
If you come into contact with the electrolyte,
observe the following:
R Rinse off the electrolyte from your skin
immediately with water.
R Immediately rinse the electrolyte out of
your eyes thoroughly with clean water.
R If the electrolyte is swallowed, immediately
rinse your mouth out thoroughly. Do not
induce vomiting.
R If electrolyte comes into contact with your
skin or hair or is swallowed, seek medical
attention immediately. 84
MirrorsSeats, steering wheel and mirrors

0084
Display
006B Switches air-recirculation mode on/off (Y page 104)
006C Activates/deactivates climate control (Y page 100)
006D Sets the temperature, right (Y page 101)
006E Activates or deactivates maximum cooling (Y page 103)
006F Switches cooling with air dehumidification on/off (Y page 100)
0070 Reduces the airflow (Y page 102)
0071 Switches the rear window defroster on/off (Y page 103)
0072 Switches the ZONE function on/off (Y page 102)Optimum use of 3-zone automatic cli-
mate control
Climate control system The following contains instructions and recom-
mendations to enable you to get the most out of
your dual-zone automatic climate control.
R Activate climate control using the 0058and
005A buttons. The indicator lamps in the
0058 and005A buttons light up.
R Set the temperature to 72 ‡ (22 †).
R Only use the "Windshield defrosting" function
briefly until the windshield is clear again.
R Only 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.
R Use the ZONE function to adopt the temper-
ature settings on the driver's side for the
front-passenger side as well. The indicator
lamp in the 00D6button goes out.
R If you change the settings of the climate con-
trol system, the climate status display
appears for approximately three seconds at
the bottom of the screen in the multimedia
system display; see separate operating
instructions. You will see the current settings
of the various climate control functions.
You can choose between various drive programs
with the program selector button (Y page 114).
If you have selected drive program E+:
R the cooling output is reduced when cooling
R heat output is reduced when heating
R the time for which the rear window defroster
will run is reduced
If you have selected drive program Eor S, the
current climate settings are maintained. Operating the climate control sys-
tems
Activates/deactivates 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
Dual-zone automatic climate control X
Turn the SmartKey to position 2in the ignition
lock (Y page 109).
X To activate: press the0058button.
The indicator lamp in the 0058button lights
up. Airflow and air distribution are set to auto- matic mode.
or X Press the 0078button.
The indicator lamp in the 0078button goes
out. The previously selected settings are
restored.
X To deactivate: press the0078button.
The indicator lamp in the 0078button lights
up.
i Activate climate control primarily using the
0058 button. Switches cooling with air dehumidifi-
cation on/off
General notes If you deactivate the "Cooling with air-dehumid-
ification" function, the air inside the vehicle will
not be cooled. The air inside the vehicle will also 100
Operating the climate control systemsClimate control

Setting the air distribution
Air distribution settings 0061
Directs air through the defroster vents
009C Directs air through the center and side air
vents
009B Directs air through the footwell air vents
009F Directs air through the center, side and
footwell vents
0087 Directs air through the defroster, center
and side air vents
0086 Directs air through the defroster and
footwell vents
008F Directs air through the defroster, center,
side and footwell vents
i Regardless of the air distribution setting,
airflow is always directed through the side air
vents. The side air vents can only be closed if the adjusters are turned clockwise until they
engage.
Setting the air distribution X
Turn the SmartKey to position 2in the ignition
lock (Y page 109).
X Press the 004For004A button repeatedly
until the desired symbol appears in the dis-
play. Setting the airflow
X Turn the SmartKey to position 2in the ignition
lock (Y page 109).
X To increase or reduce:press the 0097or
0095 button. Switching the ZONE function on/off
X To activate: press the00D6button.
The indicator lamp in the 00D6button lights
up.
The temperature setting for the driver's side
is not adopted for the front-passenger side.
X To deactivate: press the00D6button.
The indicator lamp in the 00D6button goes
out.
The temperature setting for the driver's side
is adopted for the front-passenger side. Defrosting the windshield
General notes You can use this function to defrost the wind-
shield or to clear a fogged up windshield and
side windows.
i You should only select the "Windshield
defrosting" function until the windshield is
clear again.
Switching the "Windshield defrosting"
function on or off X
Turn the SmartKey to position 2in the ignition
lock (Y page 109).
X To activate: press the0064button.
The indicator lamp in the 0064button lights
up.
The climate control system switches to the
following functions:
R high airflow
R high temperature
R air distribution to the windshield and front
side windows
R air-recirculation mode off
Vehicles with windshield heating: the
windshield heating is switched on automati-
cally using the "Windshield defrosting" func-
tion.
i The "Windshield defrosting" function auto-
matically sets the blower output to the opti-
mum defrosting effect. As a result, the airflow
may increase or decrease automatically after
the 0064 button is pressed.
i You can adjust the blower output manually
while the "Windshield defrosting" function is
in operation:
Press the 00F2or00F3 button.
X To deactivate: press the0064button.
The indicator lamp in the 0064button goes
out. The previously selected settings are
restored. Air-recirculation mode remains
deactivated.
or X Press the 0058button.
The indicator lamp in the 0064button goes
out. Airflow and air distribution are set to
automatic mode. 102
Operating the climate control systemsClimate control

or
X Turn temperature control 0043or006D counter-
clockwise or clockwise (Y page 99).MAX COOL maximum cooling
The MAX COOL function is only available in vehi-
cles for the USA.
The MAX COOL function only works when the
vehicle is ready to drive.
X To activate: press the00C9button.
The indicator lamp in the button lights up.
X To deactivate: press the00C9button.
The indicator lamp goes out. The previously
selected settings are restored.
When you activate MAX COOL, climate control
switches to the following functions:
R maximum cooling
R maximum airflow
R air-recirculation mode on Defrosting the windows
Windows fogged up on the inside X
Activate the 005A"Cooling with air dehumid-
ification" function.
X Activate automatic mode 0058.
X If the windows continue to fog up, activate the
0064 "Windshield defrosting" function. i
You should only select this setting until the
windshield is clear again.
Windows fogged up on the outside X
Activate the windshield wipers.
X Set the air distribution to 009Cor009B.
i You should only select this setting until the
windshield is clear again. Rear window defroster
General notes The rear window defroster has a high current
draw. You should therefore switch it off as soon
as the rear window is clear. Otherwise, the rear window defroster switches off automatically
after several minutes.
If the battery voltage is too low, the rear window
defroster may switch off.
Activating/deactivating X
Turn the SmartKey to position 2in the ignition
lock (Y page 109).
X Press the 006Cbutton.
The indicator lamp in the 006Cbutton lights
up or goes out.
Problems with the rear window defroster Problem
Possible causes/consequences and
0050 0050Solutions The rear window
defroster has deactiva-
ted prematurely or can-
not be activated. The battery has not been sufficiently charged.
X Switch off any consumers that are not required, e.g. reading lamps,
interior lighting or the seat heating.
When the battery is sufficiently charged, the rear window defroster can be activated again. Operating the climate control systems
103Climate control