2015 MERCEDES-BENZ C-Class SEDAN Coolant

Children
In the vehicle .................................. .59
Restraint systems ............................ 61
Special seat belt retractor .............. .60
Child seat
Forward-facing restraint system ...... 64
LATCH-type (ISOFIX) child seat
anchors ............................................ 62
On the front-passenger seat ............ 63
Rearward-facing restraint system .... 64
Top Tether ...................................... .62
Cigarette lighter ................................ 309
Cleaning Mirror turn signal .......................... .334
Climate control
Automatic climate control (3-
zone) .............................................. 141
Controlling automatically .............. .144
Cooling with air dehumidification .. 143
Defrosting the windows ................. 148
Defrosting the windshield .............. 147
Dual-zone automatic climate con-
trol ................................................. 139
ECO start/stop function (3-zone
automatic climate control) ............. 142
ECO start/stop function (dual-
zone automatic climate control) .... 139
Important safety notes .................. 138
Indicator lamp ................................ 144
Information about using auto-
matic climate control ..................... 142
Information about using dual-zone
automatic climate control .............. 139
Ionization ....................................... 152
Overview of systems ..................... .138
Perfume atomizer .......................... 150
Problems with cooling with air
dehumidification ............................ 144
Problem with the rear window
defroster ........................................ 149
Rear control panel ......................... 141
Refrigerant ..................................... 402
Refrigerant filling capacity ............. 403
Setting the air distribution ............. 146
Setting the airflow ......................... 146
Setting the air vents ..................... .152
Setting the climate mode .............. .145 Setting the temperature ................ 145
Switching air-recirculation mode
on/off ............................................ 149
Switching on/off ........................... 142
Switching residual heat on/off ...... 149
Switching the rear window
defroster on/off ............................ 148
Switching the synchronization
function on and off ........................ 147
Climate control system
Automatic engine start .................. 161
Automatic engine switch-off .......... 161
Climate control (3-zone automaticclimate control) ............................ .142
Deactivating/activating ................. 162
Important safety notes .................. 161
Introduction ................................... 161
Cockpit
Overview .......................................... 32
COLLISION PREVENTION ASSIST
PLUS
Activating/deactivating ................. 245
Display message ............................ 258
Operation/notes .............................. 69
COMAND display
Cleaning ......................................... 336
Combination switch .......................... 126
Consumption statistics (on-board
computer) .......................................... 237
Convenience box ............................... 304
Convenience closing feature .............. 99
Convenience opening feature ............ 98
Coolant (engine) Checking the level ......................... 327
Display message ............................ 267
Filling capacity ............................... 402
Important safety notes .................. 401
Temperature display in the instru-
ment cluster .................................. 231
Temperature display in the on-
board computer ............................ .244
Warning lamp ................................. 291
Cooling
see Climate control
Copyright ............................................. 29 Index
7

Reserve (fuel tank)
see Fuel
Reserve fuel
Display messag e............................ 270
Warning lamp ................................. 291
Residual heat (climate control) ........ 149
Restraint system Display message ............................ 260
Introduction ..................................... 42
Warning lamp ................................. 290
Warning lamp (function) ................... 43
Reversing feature
Panorama sliding sunroof .............. 102
Roller sunblind s............................. 104
Side windows ................................... 97
Sliding sunroof ............................... 102
Trunk lid ........................................... 91
Reversing lamps (display mes-
sage) ................................................... 266
Roadside Assistance (breakdown) .... 24
Roller sunblind Panorama roof with power tilt/
sliding panel .................................. 104
Rear side window s......................... 308
Rear window .................................. 308
Roller sunblinds (panorama roof
with power tilt/sliding panel)
Operating ....................................... 105
Roof carrier ........................................ 306
Roof lining and carpets (cleaning
guidelines) ......................................... 337
Roof load (maximum) ........................ 403S
Safety Children in the vehicle ..................... 59
Child restraint systems .................... 61
Occupant Classification System
(OCS) ............................................... 51
see Operating safety
Safety system
see Driving safety systems
Seat belts
Adjusting the driver's and front-
passenger seat belt ......................... 47
Adjusting the height ......................... 46 center rear-compartment sea
t......... 47
Cleaning ......................................... 337
Correct usage .................................. 45
Fastening ......................................... 46
Important safety guidelines ............. 44
Introduction ..................................... 44
Releasing ......................................... 47
Warning lamp ................................. 284
Warning lamp (function) ................... 48
Seats
Adjusting (electrically) ................... 110
Adjusting (manually and electri-
cally) .............................................. 110
Adjusting the 4-way lumbar sup-
port ................................................ 112
Adjusting the head restraint .......... 111
Cleaning the cover ......................... 337
Correct driver's seat position ........ 108
Important safety notes .................. 109
Seat heating .................................. 112
Seat heating problem .................... 114
Seat ventilation .............................. 114
Seat ventilation problem ................ 115
Storing settings (memory func-
tion) ............................................... 121
Switching seat heating on/of f....... 112
Switching seat ventilation on/of f.. 114
Selector lever
Cleaning ......................................... 336
see Automatic transmission
Sensors (cleaning instructions) ....... 334
Service menu (on-board com-
puter) .................................................. 244
Service products Brake fluid ..................................... 401
Coolant (engine) ............................ 401
Engine oil ....................................... 400
Fuel ................................................ 397
Important safety notes .................. 397
Refrigerant (air-conditioning sys-
tem) ............................................... 402
Washer fluid ................................... 402
Settings
Factory (on-board computer) ......... 249
On-board computer ....................... 244
Side impact air bag ............................. 5016
Index

Stowage well beneath the trunk
floor
....................................................3 05
Summer tires In winter ........................................ 360
Sun visor ............................................ 307
Suspension tuning AIRMATIC ...................................... 198
Switching air-recirculation mode
on/off ................................................. 149 T
Tachometer ........................................ 231
Tail lamps Display message ............................ 265
see Lights
Tank content
Fuel gauge ....................................... 33
Technical data
Capacities ...................................... 397
Information ................................... .396
Tires/wheels ................................. 386
Vehicle data ................................... 403
Telephone
Accepting a call (multifunction
steering wheel) .............................. 242
Display message ............................ 282
Introduction ................................... 242
Menu (on-board computer) ............ 242
Number from the phone book ....... .243
Redialing ........................................ 243
Rejecting/ending a call ................. 242
Temperature
Coolant (display in the instrumentcluster) .......................................... 231
Coolant (display in the on-board
computer) ...................................... 244
Outside temperature ..................... .231
Setting (climate control) ................ 145
Through-loading feature ................... 301
TIREFIT kit .......................................... 342
Tire pressure Calling up (on-board computer) ..... 365
Checking manually ........................ 365
Display message ............................ 277
Important safety notes .................. 365
Maximum ....................................... 364 Notes ............................................. 363
Not reached (TIREFIT) .................... 344
Reached (TIREFIT) .......................... 344
Recommended ............................... 361
Tire pressure loss warning sys-
tem
General notes ................................ 368
Important safety notes .................. 368
Restarting ...................................... 369
Tire pressure monitor
Checking the tire pressure elec-
tronically ........................................ 367
Function/notes ............................ .365
General notes ................................ 365
Important safety notes .................. 365
Radio type approval for the tire
pressure monitor ........................... 368
Restarting ...................................... 367
Warning lamp ................................. 294
Warning message .......................... 367
Tires
Aspect ratio (definition) ................. 380
Average weight of the vehicle
occupants (definition) .................... 379
Bar (definition) ............................... 378
Changing a wheel .......................... 381
Characteristics .............................. 378
Checking ........................................ 359
Curb weight (definition) ................. 380
Definition of terms ......................... 378
Direction of rotatio n...................... 381
Display message ............................ 277
Distribution of the vehicle occu-
pants (definition) ............................ 381
DOT, Tire Identification Number
(TIN) ............................................... 378
DOT (Department of Transporta-
tion) (definition) ............................. 379
GAWR (Gross Axle Weight Rating)
(definition) ..................................... 379
GVW (Gross Vehicle Weight) (def-
inition) ........................................... 379
GVWR (Gross Vehicle Weight Rat-
ing) (definition) .............................. 379
Important safety notes .................. 358
Increased vehicle weight due to
optional equipment (definition) ...... 379
Kilopascal (kPa) (definition) ........... 379 18
Index

Trunk load (maximum)
...................... 403
Turn signals Changing bulbs (front) ................... 132
Changing bulbs (rear ).................... 132
Display message ............................ 264
Switching on/of f........................... 126
Type identification plate
see Vehicle identification plate U
Unlocking Emergency unlocking ....................... 88
From inside the vehicle (central
unlocking button) ............................. 87 V
Vanity mirror (in the sun visor) ........ 308
Vehicle Correct use ...................................... 27
Data acquisition ............................... 28
Display message ............................ 280
Equipment ....................................... 23
Individual settings .......................... 244
Limited Warranty ............................. 27
Loading .......................................... 369
Locking (in an emergency) ............... 89
Locking (SmartKey ).......................... 81
Lowering ........................................ 386
Maintenance .................................... 24
Operating safety .............................. 25
Parking for a long period ................ 177
Pulling away ................................... 160
Raising ........................................... 382
Reporting problems ......................... 27
Securing from rolling away ............ 382
Towing away .................................. 351
Transporting .................................. 353
Unlocking (in an emergency) ........... 88
Unlocking (SmartKey )...................... 81
Vehicle data ................................... 403
Vehicle data
Roof load (maximum) ..................... 403
Trunk load (maximum) ................... 403
Vehicle dimensions ........................... 403
Vehicle emergency locking ................ 89Vehicle identification number
see VIN
Vehicle identification plate .............. 396
Vehicle level AIRMATIC ...................................... 198
Display message ............................ 271
Vehicle maintenance
see ASSYST PLUS
Vehicle tool kit .................................. 340
Video Operating the DVD ......................... 241
VIN ...................................................... 396 W
Warning and indicator lamps ABS ................................................ 286
Brakes ........................................... 285
Check Engine ................................. 291
Coolant .......................................... 291
Distance warning ........................... 293
ESP ®
.............................................. 288
ESP ®
OFF ....................................... 289
Overview .......................................... 34
Parking brake ................................ 290
PASSENGER AIR BAG ...................... 43
Reserve fue l................................... 291
Restraint system ............................ 290
Seat belt ........................................ 284
Steering ......................................... 295
Tire pressure monitor .................... 294
Warranty .............................................. 23
Washer fluid Display message ............................ 282
Wheel and tire combination
see Tires
Wheel bolt tightening torque ........... 386
Wheel chock ...................................... 382
Wheels Changing a whee l.......................... 381
Checking ........................................ 359
Cleaning ......................................... 333
Important safety notes .................. 358
Interchanging/changing ................ 381
Mounting a new whee l................... 385
Mounting a whee l.......................... 381
Removing a whee l.......................... 385 20
Index

Instrument cluster
Displays
Function Page
0043
Speedometer
0044
Multifunction display 233
0087
Tachometer 231 Function Page
0085
Coolant temperature dis-
play
231
0083
Fuel gauge Instrument cluster
33At a glance

Warning and indicator lamps
Function Page
0043
00BB
ESP®
OFF 288
0044
00E5
ESP® 288
0087
00BA
Distance warning 293
0085
00CC
Power steering 295
0083
003E003D
Turn signals 126
0084
0024
Electric parking brake
(yellow) 290
006B
0025
ABS 286
006C
00B9
Check Engine 291
006D
Electric parking brake (red) 290
0049
USA only 0024
Canada only 006E
Brakes (red) 285
0027
USA only 004D
Canada only 006F
00AC
Coolant 291 Function Page
0070
004D
Brakes (yellow) 285
0071
0075
Restraint system 42
0072
00E9
Seat belt 284
0073
0057
High-beam head-
lamps 126
0074
0058
Low-beam head-
lamps 125
0075
00B6
Reserve fuel 291
0076
0060
Parking lamps,
license plate and instru-
ment cluster lighting 126
0077
005A
This lamp has no func-
tion 0078
005E
Rear fog lamps 125
0079
0077
Tire pressure monitor 29434
Instrument clusterAt a glance

Problems with the engine
Problem
Possible causes/consequences and
0050
0050Solutions The engine does not
start. The starter motor
can be heard. R
There is a malfunction in the engine electronics.
R There is a malfunction in the fuel supply.
X Before attempting to start the engine again, turn the SmartKey
in the ignition back to position 0or press the Start/Stop button
repeatedly until all indicator lamps in the instrument cluster go out.
X Try to start the engine again (Y page 159). Avoid excessively
long and frequent attempts to start the engine as these will drain
the battery.
If the engine does not start after several attempts:
X Consult a qualified specialist workshop. The engine does not
start. You cannot hear
the starter motor. The on-board voltage is too low because the battery is too weak or
discharged.
X Jump-start the vehicle (Y page 349).
If the engine does not start despite attempts to jump-start it:
X Consult a qualified specialist workshop. The starter motor was exposed to a thermal load that was too high.
X Try to start the engine again (Y page 159).
If the engine still does not start: X Consult a qualified specialist workshop. The engine is not run-
ning smoothly and is
misfiring. There is a malfunction in the engine electronics or in a mechanical
component of the engine management system.
X Only depress the accelerator pedal slightly.
Otherwise, non-combusted fuel may get into the catalytic con-
verter and damage it.
X Have the cause rectified immediately at a qualified specialist
workshop. The coolant tempera-
ture gauge shows a
value above 248 ‡
(120 †). The coolant level is too low. The coolant is too hot and the engine
is no longer being cooled sufficiently.
X Stop as soon as possible and allow the engine and the coolant to
cool down.
X Check the coolant level (Y page 327). Observe the warning
notes as you do so and add coolant if necessary. Driving
163Driving and parking Z

Speedometer with segments
The segments in the speedometer indicate
which speed range is available.
R Cruise control activated (Y page 183):
The segments light up from the stored
speed to the maximum speed.
R DISTRONIC PLUS activated (Y page 185):
One or two segments in the set speed
range light up.
R DISTRONIC PLUS detects a vehicle in front:
The segments between the speed of the
vehicle in front and the stored speed light
up. Tachometer
! Do not drive in the overrevving range, as
this could damage the engine.
The red band in the tachometer indicates the
engine's overrevving range.
The fuel supply is interrupted to protect the
engine when the red band is reached. Outside temperature display
You should pay special attention to road con-
ditions when temperatures are around freez-
ing point.
Bear in mind that the outside temperature
display indicates the temperature measured
and does not record the road temperature.
The outside temperature display is in the mul- tifunction display (Y page 233).
Changes in the outside temperature are dis-
played after a short delay. Coolant temperature display
G
WARNING
Opening the hood when the engine is over-
heated or when there is a fire in the engine
compartment could expose you to hot gases or other service products. There is a risk of
injury.
Let an overheated engine cool down before
opening the hood. If there is a fire in the
engine compartment, keep the hood closed
and contact the fire department.
! A display message is shown if the coolant
temperature is too high.
If the coolant temperature is over 248 ‡
(120 †), do not continue driving. The
engine will otherwise be damaged.
The analog coolant temperature gauge is in
the instrument cluster on the right-hand side
(Y page 33).
In the on-board computer in the Service Service
menu there is a digital coolant temperature
gauge (Y page 244).
Under normal operating conditions and with
the specified coolant level, the coolant tem-
perature may rise to 248 ‡ (120 †). Operating the on-board computer
0043
Multifunction display
0044 Right control panel
0087 Left control panel Displays and operation
231On-board computer and displays Z