2018 MERCEDES-BENZ C CLASS washer fluid

Adjusting the 4-way lumbar sup-
port ................................................ 104
Adjusting the head restraint .......... 102
Calling up a stored setting (mem-
ory function) .................................. 111
Cleaning the cover ......................... 314
Folding the backrest (rear com-
partment) forwards/back .............. 283
Important safety notes .................. 100
Seat heating .................................. 104
Seat heating problem .................... 105
Seat ventilation .............................. 105
Seat ventilation problem ................ 105
Storing settings (memory func-
tion) ............................................... 111
Securing a load
see Securing cargo
Securing cargo .................................. 285
Selecting a gear
see Automatic transmission
Selector lever
Cleaning ......................................... 314
see Automatic transmission
Sensors (cleaning instructions) ....... 312
Service center
see Qualified specialist workshop
Service Center
see Qualified specialist workshop
Service menu (on-board com-
puter) .................................................. 221
Service message
see ASSYST PLUS
Service products
Brake fluid ..................................... 365
Coolant (engine) ............................ 365
DEF special additives ..................... 364
Engine oil ....................................... 364
Fuel ................................................ 361
Important safety notes .................. 361
Refrigerant (air-conditioning sys-
tem) ............................................... 367
Washer fluid ................................... 366
Setting the date/time format
see also Digital Operator's Man-
ual .................................................. 270
Setting the language
see also Digital Operator's Man-
ual .................................................. 270 Setting the time
see also Digital Operator's Man-
ual .................................................. 270
Settings
Factory (on-board computer) ......... 226
On-board computer ....................... 222
SETUP (on-b oard c
omputer,
Mercedes-AMG vehicles) .................. 227
Side impact air bag ............................. 51
Side marker lamp (display mes-
sage) ................................................... 242
Side windows
Cleaning ......................................... 311
Convenience closing feature ............ 92
Convenience opening feature .......... 92
Important safety information ........... 90
Opening/closing .............................. 91
Problem (malfunction) ..................... 93
Resetting ......................................... 93
Reversing feature ............................. 91
SIRIUS services
see also Digital Operator's Man-
ual .................................................. 270
Ski and snowboard bag .................... 282
Sliding sunroof
Important safety notes .................... 94
Opening/closing .............................. 95
Problem (malfunction) ..................... 98
Resetting ......................................... 95
see Panorama roof with power
tilt/sliding panel
SmartKey
Changing the battery ....................... 81
Changing the programming ............. 80
Checking the battery ....................... 81
Convenience closing feature ............ 92
Convenience opening feature .......... 92
Display message ............................ 257
Door central locking/unlocking ....... 78
Important safety notes .................... 78
KEYLESS-GO start function .............. 80
Loss ................................................. 82
Mechanical key ................................ 80
Overview .......................................... 78
Positions (ignition lock) ................. 136
Problem (malfunction) ..................... 82
Starting the engine ........................ 138
20Index

Vehicle data ................................... 367
Vehicle battery
see Battery (vehicle)
Vehicle data
Roof load (maximum) .....................3 67
Vehicle dimensions ........................... 367
Vehicle emergency locking ................ 85
Vehicle identification number
see VIN
Vehicle identification plate .............. 360
Vehicle level
AIRMATIC ...................................... 182
Display message ............................ 247
Video
Operating the DVD ......................... 219
see also Digital Operator's Man-
ual ..................................................2 70
VIN
Seat ............................................... 361
Type plate ...................................... 360
W
Warning and indicator lampsABS ................................................ 261
Active Brake Assist ........................ 267
Airbag ............................................ 264
Brakes ...........................................2 60
Coolant .......................................... 265
Distance warning ........................... 267
Engine diagnostics ......................... 265
ESP
®.............................................. 261
ESP®OFF ....................................... 263
Fuel tank ........................................ 265
General notes ................................ 258
Overview .......................................... 37
Parking brake ................................ 264
PASSENGER AIR BAG ......................4 5
Reserv efuel .................................. .265
Restraint system ............................ 264
Seat belt ........................................ 259
SPORT handling mode ................... 263
Steering ......................................... 269
Tire pressure monitor .................... 268
Warranty .............................................. 29
Washer fluid
Display message ............................ 257 Weather display (COMAND)
see also Digital Operator's Man-
ual .................................................. 270
Wheel and tire combinations
Tires ............................................... 357
Wheel bolt tightening torque ........... 357
Wheel chock ...................................... 353
Wheels
Changing a wheel .......................... 352
Checking ........................................ 334
Cleaning ......................................... 311
Important safety notes .................. 333
Information on driving .................... 333
Interchanging/changing ................ 352
Mounting a new wheel ................... 356
Mounting a wheel .......................... 353
Removing a wheel .......................... 356
Snow chains .................................. 336
Storing ........................................... 353
Tightening torque ........................... 357
Wheel size/tire size ....................... 357
Window curtain air bag
Display message ............................ 239
Operation ......................................... 51
Windows
see Side windows
Windshield
Defrosting ...................................... 129
Win dshie
ld washer fluid
see Windshield washer system
Windshield washer system
Adding washer fluid ....................... 307
Important safety notes .................. 366
Windshield wipers
Problem (malfunction) ................... 123
Replacing the wiper blades ............ 121
Switching on/off ........................... 120
Winter driving
Important safety notes .................. 335
Slippery road surfaces ................... 169
Snow chains .................................. 336
Winter operation
Radiator cover ............................... 304
Summer tires ................................. 335
Winter tires
M+S tires ....................................... 335
Wiper arm
Moving to a vertical position .......... 121
Index25

XPull out the plug.
XTurn wing nut:90° counter-clockwise and
remove the bulb holder.
XIndicator lamp ;:press the defective bulb
gently into the bulb holder, turn it counter-
clockwise and remove it from the bulb holder.
XInsert the new bulb into the bulb holder and
turn it clockwise.
XBackup lamp =:withdraw the defective
bulb from the bulb holder.
XInsert the new bulb into the bulb holder.
XRe-install bulb holder.
XTurn fender nut :90° clockwise.
XInsert the connector.
XClose the side trim panel (Ypage 119).
Windshield wipers
Switching the windshield wipers
on/off
!
Do not operate the windshield wipers when
the windshield is dry, as this could damage
the wiper blades. Moreover, dust that has col-
lected on the windshield can scratch the glass if wiping takes place when the windshield is
dry.
If it is necessary to switch on the windshield
wipers in dry weather conditions, always use
washer fluid when operating the windshield
wipers.
!If the windshield wipers leave smears on the
windshield after the vehicle has been washed
in an automatic car wash, wax or other resi-
dues may be the reason for this. Clean the
windshield using washer fluid after washing
the vehicle in an automatic car wash.
!Intermittent wiping with rain sensor: due to
optical influences and the windshield becom-
ing dirty in dry weather conditions, the wind-
shield wipers may be activated inadvertently.
This could then damage the windshield wiper
blades or scratch the windshield.
For this reason, you should always switch off
the windshield wipers in dry weather.
1$ Windshield wiper off
2ÄIntermittent wipe, normal
3ÅIntermittent wipe, frequent
4°Continuous wipe, slow
5¯Continuous wipe, fast
BíSingle wipe
î Wipe with washer fluid
XSwitch on the ignition.
XTurn the combination switch to the corre-
sponding position.
Vehicles with a rain sensor: in theÅor
Ä position, the appropriate wipe frequency
is automatically set according to the intensity of
the rain. In the Åposition, the rain sensor is
more sensitive than in the Äposition, caus-
ing the windshield wiper to wipe more fre-
quently.
120Windshield wipers
Lights and windshield wipers

Problems with the windshield wipers
ProblemPossible causes/consequences andMSolutions
The windshield wipers
are jammed.Leaves or snow, for example, are obstructing windshield wiper move-
ment. The wiper motor has been deactivated.
XSwitch off the engine.
XRemove the SmartKey from the ignition lock.
or, on vehicles with KEYLESS-GO or KEYLESS ‑GO start function:
XOpen the driver's door.
The vehicle electronics are now in positionu. This means: "Key
removed".
XRemove the cause of the obstruction.
XSwitch the windshield wipers back on.
The windshield wipers
fail completely.The windshield wiper drive is malfunctioning.
XSelect another wiper speed on the combination switch.
XHave the windshield wipers checked at a qualified specialist work-
shop.
The windshield washer
fluid from the spray noz-
zles no longer hits the
center of the windshield.The spray nozzles are misaligned.
XHave the spray nozzles adjusted at a qualified specialist workshop.
Windshield wipers123
Lights and windshield wipers
Z

Display messagesPossible causes/consequences andMSolutions
Ð
Power Steering Mal‐function See Opera‐tor's Manual
The powersteering is malfunctioning .
A warning tone also sounds.
GWARNIN G
You will need to use mor eforce to steer .
There is aris kof an accident.
XChec kwhether you are able to apply th eextr aforce required.
If you ar eabl eto steer safely:
XDrive on carefully.
XVisit aqualified specialist workshop immediately.
If you ar eunable to steer safely:
XDo no tdrive on .
XConsult aqualified specialist workshop .
Phone No ServiceYour vehicleis outside th enetwork provider' stransmitter/receiver
range.
XWait until th emobile phone operational readiness symbol appear s
in th emultifunction display.
¥
Check Washer Fluid
The washer flui dlevel in th ewasher flui dreservoir has dropped belo w
th eminimum .
XAddwasher flui d (Ypage 307).
SmartKey
Display messagesPossible causes/consequences and MSolutions
Â
KeyDoesNotBelongto Vehicl e
You haveput th ewrong SmartKey in th eignition lock.
XUse th ecorrec tSmartKey.
Â
Tak eYou rKey fro mIgnition
The SmartKey is in th eignition lock.
A warning tone sounds
XRemove th eSmartKey.
Â
Obtain aNew Key
The SmartKey needs to be replaced.
XVisit aqualified specialist workshop .
Â
ReplaceKey Batter y
The SmartKey battery is discharged.
XChange thebatterie s (Ypage 81) .
Display messages257
On-board computer and displays
Z

XIf necessary, add coolant that has been tested
and approved by Mercedes-Benz.
XReplace cap:and turn it clockwise as far as
it will go.
For further information on coolant, see
(
Ypage 365).
Adding washer fluid to the windshield
washer system
GWARNING
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.
Example: adding liquid to the windshield
washer system
XTo open: pull cap:upwards by the tab and
open.
XAdd the premixed washer fluid.
XTo close: press cap :onto the filler neck
until it engages.
If the washer fluid level drops below the recom-
mended minimum fluid level of 1.1 US qt (1.0 l),
a message appears in the multifunction display
prompting you to add washer fluid (
Ypage 257).
Further information on washer fluid
(
Ypage 366).
ASSYST PLUS
Service message
The ASSYST PLUS service interval display
informs you of the next service due date. Information on the type of service and service
intervals (see the separate Maintenance Book-
let).
Further information can be obtained at a quali-
fied specialist workshop, e.g. an authorized
Mercedes-Benz Center, or at
http://www.mbusa.com (USA only).
iThe ASSYST PLUS service interval display
does not show any information on the engine
oil level. Observe the notes on the engine oil
level (
Ypage 304).
The multifunction display shows a service mes-
sage for several seconds, e.g.:
RService A in XX Days
RService A Due
RService A Overdue by XX Days
Depending on the operating conditions of the
vehicle, the remaining time or distance until the
next service due date is displayed.
The letter A
orB, possibly in connection with a
number or another letter, indicates the type of
service. A
stands for a minor service and Bfor a
major service.
You can obtain further information from an
authorized Mercedes-Benz Center.
The ASSYST PLUS service interval display does
not take into account any periods of time during
which the battery is disconnected.
Maintaining the time-dependent service sched-
ule:
XNote down the service due date displayed in
the multifunction display before disconnect-
ing the battery.
or
XAfter reconnecting the battery, subtract the
battery disconnection periods from the ser-
vice date shown on the display.
Hiding a service message
XPress the aor% button on the steering
wheel.
Displaying service messages
XSwitch on the ignition.
XUse ò on the steering wheel to call up the
list of menus.
ASSYST PLUS307
Maintenance and care
Z

XDo not point the water jet directly towards the
air inlet.
XUse plenty of water and rinse out the sponge
frequently.
XRinse the vehicle with clean water and dry
thoroughly with a chamois.
XDo not let the cleaning agent dry on the paint-work.
Carefully remove all deposits of road salt as
soon as possible when driving in winter.
Power washers
GWARNING
The water jet from a circular jet nozzle (dirt
blasters) can cause invisible exterior damage
to the tires or chassis components. Compo-
nents damaged in this way may fail unexpect-
edly. There is a risk of an accident.
Do not use power washers with circular jet
nozzles to clean the vehicle. Have damaged
tires or chassis components replaced imme-
diately.
!Always maintain a distance of at least
11.8 in (30 cm) between the vehicle and the
power washer nozzle. Information about the
correct distance is available from the equip-
ment manufacturer.
Move the power washer nozzle around when
cleaning your vehicle.
Do not aim directly at any of the following:
RTires
RDoor gaps, roof gaps, joints, etc.
RElectrical components
RBattery
RConnectors
RLamps
RSeals
RTrim
RVentilation slots
Damaged seals or electrical components can
lead to leaks or failures.
!Vehicles with decorative film: parts of your
vehicle are covered with a decorative film.
Maintain a distance of at least 27.5 in (70 cm)
between the parts of the vehicle covered with
the film and the nozzle of the high pressure
cleaner. Information about the correct distance
is
a

vailable from the equipment manufacturer.
Move the power washer nozzle around when
cleaning your vehicle.
!If the SmartKey is within the rear detection
range of KEYLESS-GO, the following situa-
tions, for example, could lead to the uninten-
tional opening of the trunk:
Rusing a car wash
Rusing a power washer
Make sure that the SmartKey is at least 10 ft
(3 m) away from the vehicle.
Cleaning the paintwork
!Do not affix:
Rstickers
Rfilms
Rmagnetic plates or similar items
to painted surfaces. You could otherwise
damage the paintwork.
Scratches, corrosive deposits, areas affected by
corrosion and damage caused by inadequate
care cannot always be completely repaired. In
such cases, visit a qualified specialist workshop.
XRemove dirt immediately, where possible,
while avoiding rubbing too hard.
XSoak insect remains with insect remover and
rinse off the treated areas afterwards.
XSoak bird droppings with water and rinse off
the treated areas afterwards.
XRemove coolant, brake fluid, tree resin, oils,
fuels and greases by rubbing gently with a
cloth soaked in petroleum ether or lighter
fluid.
XUse tar remover to remove tar stains.
XUse silicone remover to remove wax.
If water no longer forms "beads" on the paint
surface, use the paint care products recommen-
ded and approved by Mercedes-Benz. This is the
case approximately every three to five months,
depending on the climate conditions and the
care product used.
The cleaning product Paint Cleaner, which has
been recommended and approved by
Mercedes-Benz, shoul d b
e used when dirt has
penetrated the paint surface.
Also use Paint Cleaner on paint that has become
dull.
310Care
Maintenance and care

iThe data shown on the vehicle identification
plate is used only as an example. This data is
different for every vehicle and can deviate
from the data shown here. You can find the
data applicable to your vehicle on the vehicle
identification plate.
Vehicle identification number (VIN)
XSlide the right-hand front seat to its rearmost
position.
XFold floor covering ;upwards.
The VIN is visible :.
The VIN can also be found on the vehicle iden-
tification plate (
Ypage 360).
The VIN can also be found at the lower edge of
the windshield (
Ypage 361).
Engine number
:Engine number (stamped into the crank-
case)
;VIN (on the lower edge of the windshield)
=Emission control information plate, includ-
ing the certification of both federal and Cali-
fornian emissions standards
Service products and filling capaci-
ties
Important safety notes
GWARNING
Service products may be poisonous and haz-
ardous to health. There is a risk of injury.
Comply with instructions on the use, storage
and disposal of service products on the labels
of the respective original containers. Always
store service products sealed in their original
containers. Always keep service products out
of the reach of children.
HEnvironmental note
Dispose of service products in an environ-
mentally responsible manner.
Service products include the following:
RFuels
RExhaust gas aftertreatment additives, e.g.
DEF
RLubricants (e.g. engine oil, transmission oil)
RCoolant
RBrake fluid
RWindshield washer fluid
RClimate control system refrigerant
Components and service products must match.
Only use products recommended by Mercedes-
Benz. Damage which is caused by the use of
products which have not been recommended is
not covered by the Mercedes-Benz warranty or
goodwill gestures. Products approved by
Mercedes-Benz are listed in this Operator's
Manual in the appropriate section.
Information on tested and approved products
can be obtained at a Mercedes-Benz Service
Center or on the Internet at
http://bevo.mercedes-benz.com.
You can recognize service products approved by
Mercedes-Benz by the following inscription on
the containers:
RMB-Freigabe (e.g. MB-Freigabe 229.51)
RMB-Approval (e.g. MB-Approval 229.51)
Other designations or recommendations indi-
cate a level of quality or a specification in
accordance with an MB Sheet Number (e.g. MB
Service products and filling capacities361
Technical data
Z