2018 MERCEDES-BENZ C CLASS oil additives

1, 2, 3 ...
4ETS (Electronic Traction System)see ETS/4ETS (Electronic Trac-
tion System)
4MATIC (permanent four-wheel
drive) .................................................. 184
12 V socket
see Socket (12 V)
360° camera
Cleaning .........................................3 13
Display in the multimedia system .. 196
Function/notes .............................1 94
A
ABS (Anti-lock Braking System)
Display message ............................ 231
Function/notes ................................ 66
Warning lamp ................................. 261
Acceleration
see Kickdown
Accident
Automatic measures after an acci-
dent ................................................. 59
Accident warning
see Driving safety system
Activating media mode
General notes ................................ 279
Activating/deactivating cooling
with air dehumidification ................. 127
Active Blind Spot Assist
Activating/deactivating (on-
board computer) ............................ 223
Display message ............................ 248
Function/notes .............................2 04
Active Brake Assist
Activating or deactivating .............. 223
Display message ............................ 236
Function/notes ................................ 67
Active Brake Assist with cross-
traffic function
Activating or deactivating .............. 223
Display message ............................ 237
Function/notes ................................ 73
Important safety notes .................... 73
Warning lamp ................................. 267 Active Lane Keeping Assist
Activating/deactivating (on-
board computer) ............................ 223
Display message ............................ 248
Function/information .................... 207
Active light function
Display message ............................ 242
Active Service System PLUS
see ASSYST PLUS
ADAPTIVE BRAKE ................................. 73
Adaptive Brake Assist
Function/notes ................................ 68
Adaptive Damping System
Function/notes ............................. 183
Adaptive Damping System with
continuous damping adjustment
(ADS PLUS) ........................................ 182
Adaptive Highbeam Assist
Display message ............................ 242
Function/notes ............................. 115
Switching on/off ........................... 116
Additional speedometer ................... 225
Additives (engine oil) ........................ 365
Address book
see also Digital Operator's Man-
ual .................................................. 270
A

djusting the volume
Multimedia system ........................ 271
After-sales service center
see ASSYST PLUS
Air bags
Deployment ..................................... 56
Display message ............................ 240
Front air bag (driver, front
passenger) ....................................... 50
Important safety notes .................... 49
Introduction ..................................... 49
Knee bag .......................................... 51
Occupant Classification System
(OCS) ............................................... 52
PASSENGER AIR BAG indicator
lamps ............................................... 45
Side impact air bag .......................... 51
Window curtain air bag .................... 51
Air filter (display message) .............. 246
Air vents
Important safety notes .................. 133
4Index

E
EASY-ENTRY featureFunction/notes ............................ .107
EASY-EXIT feature
Function/notes .............................1 07
EASY-PACK trunk box ....................... 286
EBD (electronic brake force distri-
bution)
Display message ............................ 233
Function/notes ................................ 72
ECO display
Function/notes .............................1 65
On-board computer ....................... 215
ECO start/stop function
Automatic engine start .................. 141
Automatic engine switch-off .......... 141
Deactivating/activating ................. 141
General information ....................... 140
Important safety notes .................. 140
Introduction ................................... 140
Electronic brake force distribution
see EBD (electronic brake force
distribution)
Electronic Stability Program
see ESP
®(Electronic Stability Program)
Emergency
Automatic measures after an acci-
dent ................................................. 59
Emergency braking
see BAS (Brake Assist System)
Emergency release
Driver's door ....................................8 5
Trunk ............................................... 90
Vehicle ............................................. 85
Emergency Tensioning Devices
Activation ......................................... 56
Emissions control
Service and warranty information ....2 9
Engine
Check Engine warning lamp .......... .265
Display message ............................ 243
ECO start/stop function ................ 140
Engine number ............................... 361
Irregular running ............................ 143
Jump-starting ................................. 325
Starting (important safety notes) ... 138
Starting problems .......................... 143 Starting the engine with the
SmartKey ....................................... 138
Starting via smartphone ................ 139
Starting with the Start/Stop but-
ton ................................................. 138
Switching off .................................. 162
Tow-sta

rting (vehicle) ..................... 330
Engine electronics
Problem (malfunction) ................... 143
Engine jump starting
see Jump starting (engine)
Engine oil
Adding ...........................................3 05
Additives ........................................ 365
Checking the oil level ..................... 304
Checking the oil level using the
dipstick .......................................... 305
Display message ............................ 245
Filling capacity ............................... 365
General notes ................................ 364
Notes about oil grades ................... 364
Notes on oil level/consumption .... 304
Temperature (on-board computer,
Mercedes-AMG vehicles) ...............2 26
Engine oil additives
see Additives (engine oil)
Entering an address
see also Digital Operator's Man-
ual ..................................................2 70
ESC (Electronic Stability Control)
see ESP
®(Electronic Stability Program)
ESP®(Electronic Stability Pro-
gram)
AMG menu (on-board computer) ... 227
Characteristics ................................. 70
Crosswind Assist .............................7 2
Deactivating/activating (button
in Mercedes-AMG vehicles) .............7 1
Deactivating/activating (notes,
except Mercedes-AMG vehicles) ...... 70
Deactivating/activating (on-
board computer, except
Mercedes-AMG vehicles) ............... 222
Display message ............................ 231
Function/notes ................................ 69
General notes .................................. 69
Important safety information ........... 69
Trailer stabilization ........................... 72
Index11

Control ...........................................117
Overview ........................................ 116
Reading lamp ................................. 116
iPod
®
see also Digital Operator's Man-
ual ..................................................2 70
J
Jack
Using ............................................. 354
Jump starting (engine) ......................325
K
Key positions
SmartKey ....................................... 136
Start/Stop button .......................... 137
KEYLESS-GO
Activating ......................................... 79
Convenience closing feature ............ 92
Deactivation ..................................... 79
Locking ............................................ 79
Removing the Start/Stop button ... 137
Start function ................................... 80
Unlocking ......................................... 79
Kickdown
Driving tips ....................................1 49
Manual gearshifting ....................... 154
Knee bag .............................................. 51
L
Lamps
see Warning and indicator lamps
Lane Change Assist
see Active Blind Spot Assist
Lane detection (automatic)
see Lane Keeping Assist
Lane Keeping Assist
Activating/deactivating ................. 203
Activating/deactivating (on-
board computer) ............................ 223
Display message ............................ 248
Function/information .................... 202
see Active Lane Keeping Assist
Lane Tracking package ..................... 200
Lap time (RACETIMER) ...................... 228LATCH-type (ISOFIX) child seat
anchors
................................................ 62
License plate lamp (display mes-
sage) ................................................... 242
Light function, active
Display message ............................ 242
Light switch
Operation ....................................... 113
Lights
Adaptive Highbeam Assist ............. 115
Automatic headlamp mode ............ 113
Cornering light function ................. 115
Fogged up headlamps .................... 116
General notes ................................ 113
Hazard warning lamps ................... 115
High beam flasher .......................... 114
High-beam headlamps ................... 114
Light switch ................................... 113
Low-beam headlamps .................... 114
Parking lamps ................................ 114
Rear fog lamp ................................ 114
Setting exterior lighting ................. 113
Standing lamps .............................. 114
Switching the daytime running
lamps on/off (on-board com-
puter) ............................................. 225
Turn signals ................................... 114
see Interior lighting
Loading guidelines ............................ 280
Locking
see Central locking
Locking (doors)
Automatic ........................................ 85
Emergency locking ........................... 85
From inside (central locking but-
ton) .................................................. 84
Locking centrally
see Central locking
Low-beam headlamps
Display message ............................ 242
Replacing bulbs ............................. 118
Switching on/off ........................... 114
Lubricant additives
see Additives (engine oil)
Lumbar suppo rt
Ad

justing the 4-way lumbar sup-
port ................................................ 104
14Index

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

Depending on the engine, the oil dipstick may be
in a different location.
When checking the oil level:
Rpark the vehicle on a level surface
Rthe engine should be switched off for approx-
imately five minutes if the engine is at normal
operating temperature
Rall vehicles (except Mercedes‑AMG C 63
and Mercedes ‑AMG C 63 S):if the engine is
not at normal operating temperature, e.g. if
the engine was started only briefly, wait
approximately 30 minutes before carrying out
the measurement
Mercedes ‑AMG C 63 and Mercedes ‑AMG C
63 S: the oil level must only be checked when
the engine is at normal operating temperature.
Checking the oil level using the oil dip-
stick
Check the oil level with the oil dipstick (exam-
ple)
XPull oil dipstick :out of the dipstick guide
tube.
XWipe off oil dipstick :.
XSlowly slide dipstick :into the guide tube to
the stop, and take it out again after approx-
imately three seconds.
If the level is between MIN mark =and MAX
mark ;, the oil level is correct.
XIf the oil level has dropped to MIN mark =or
below, add 1.1 US qt (1.0 l) of engine oil.
Adding engine oil
HEnvironmental note
When adding oil, take care not to spill any. If
oil enters the soil or waterways, it is harmful to
the environment.
!Use only engine oils and oil filters that are
approved for vehicles with a service system. A list of the engine oils and oil filters that have
been tested and approved in accordance with
Mercedes-Benz Specifications for Service
Products is available at any authorized
Mercedes-Benz Center.
The following cause engine failure or damage
to the exhaust system:
RUse of engine oils and oil filters that have
not been expressly approved for the service
system
RReplacement of engine oil and oil filter after
the replacement interval specified by the
service system has expired
RUse of engine oil additives
!Do not add too much oil. adding too much
engine oil can result in damage to the engine
or to the catalytic converter. Have excess
engine oil siphoned off.
Add engine oil (example)
XTurn cap :counter-clockwise and remove it.
XAdd engine oil.
If the oil level is at or below the MIN mark on
the oil dipstick, add 1.1 US qt (1.0 l)of engine
oil.
XReplace cap :on the filler neck and tighten
clockwise.
Ensure that the cap locks into place securely.
XCheck the oil level again with the oil dipstick
(Ypage 305).
Further information on engine oil (
Ypage 364).
Engine compartment305
Maintenance and care
Z

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

!To ensure the longevity and full perform-
ance of the engine, only premium-grade
unleaded gasoline must be used.
If standard unleaded gasoline is unavailable
and you have to refuel with unleaded gasoline
of a lower grade, observe the following pre-
cautions:
ROnly fill the fuel tank to half full with regular unleaded gasoline and fill the rest with pre-
mium-grade unleaded gasoline as soon as
possible.
RDo not drive at the maximum speed.
RAvoid sudden acceleration and engine
speeds over 3,000 rpm.
You will usually find information about the fuel
grade on the fuel pump. If you cannot find the
label on the fuel pump, ask the gas station staff.
iFor further information, consult a qualified
specialist workshop or visit
http://www.mbusa.com (USA only).
As a temporary measure, if the recommended
fuel is not available, you may also use regular
unleaded gasoline with an octane rating of
87 AKI/91 RON. This may reduce engine per-
formance and increase fuel consumption. Avoid
driving at full throttle and sudden acceleration.
Never refuel using gasoline with a lower AKI.
Information on refueling (
Ypage 156).
Additives
!Operating the engine with fuel additives
added later can lead to engine failure. Do not
mix fuel additives with fuel. This does not
include additives for the removal and preven-
tion of residue buildup. gasoline must only be mixed with additives recommended by
Mercedes-Benz. Comply with the instructions
for use on the product label. More information
about recommended additives can be
obtained from any authorized Mercedes-Benz
Center.
Mercedes-Benz recommends that you use bran- ded fuels that have additives.
The fuel quality available in some countries may
not be sufficient. Residue could build up in the
fuel injection system as a result. In such cases,
and in consultation with an authorized
Mercedes-Benz Center, the fuel may be mixed
with the cleaning additive recommended by
Mercedes-Benz. You must observe the notes
and mixing ratios specified on the container.
Diesel
Fuel grade
GWARNING
If you mix diesel fuel with gasoline, the flash
point is lower than that of pure diesel fuel.
When the engine is running, exhaust system
components could overheat without being
noticed. There is a risk of fire.
Never refuel with gasoline. Never mix gasoline with diesel fuel.
!Refuel only using diesel fuel that conforms
to European standard EN 590 or an equivalent
specification. Fuel that does not conform to
EN 590 can lead to increased wear and dam-
age the engine and exhaust system.
!Do not use the following:
Rmarine diesel
Rheating oil
Rbio-diesel
Rvegetable oil
Rgasoline
Rparaffin
Rkerosene
Do not mix such fuels with diesel fuel and do
not use any special additives. Otherwise,
engine damage may occur.
!Vehicles with diesel particle filters: in
countries outside the EU, only use low sulfur
Euro diesel with a sulfur content of under
50 ppm. Otherwise, the emission control sys-
tem could be damaged.
!Vehicles without a diesel particle filter:
in countries where only diesel fuel with a high
sulfur content is available, you will need to
carry out your vehicle's oil change at shorter
intervals. Further information on oil change
intervals can be obtained at a qualified spe-
cialist workshop.
You will usually find information about the fuel
quality on the pump. If you cannot find the label
on the fuel pump, ask the gas station staff.
Information on refueling (
Ypage 156).
Service products and filling capacities363
Technical data
Z

Low outside temperatures
iDiesel fuel with improved cold flow proper-
ties is available during the winter months.
Further information about fuel properties can
be obtained from oil companies, e.g. at gas
stations.
DEF
Important safety notes
Comply with the important safety notes for ser-
vice products when handling DEF (Ypage 361).
DEF is a water-soluble fluid for the exhaust gas
aftertreatment of diesel engines. It is:
Rnot poisonous
Rcolorless and odorless
Rnot flammable
When you open the DEF container, small
amounts of ammonia vapor may be released.
Ammonia vapors have a pungent odor and are
particularly irritating to the skin, to mucous
membranes and to the eyes. You may experi-
ence a burning sensation in your eyes, nose and
throat. Coughing and watering of the eyes are
possible.
Do not inhale ammonia vapors. Fill the DEF tank
only in well-ventilated areas.
Low outside temperatures
DEF freezes at a temperature of approximately
-11 †. The vehicle is delivered from the factory
equipped with a DEF preheating system. Winter
operation can thus be guaranteed even at tem-
peratures below -11 †.
Additives
!Only use DEF in accordance with ISO
22241. Do not use additives with DEF and do
not dilute DEF with water. This may destroy
the BlueTEC exhaust gas aftertreatment sys-
tem.
Purity
!Impurities in DEF (e.g. due to other service
products, cleaning agents or dust) lead to:
Rincreased emission values
Rdamage to the catalytic converter
Rengine damage
Rmalfunctions in the BlueTEC exhaust gas
aftertreatment system
Assuring the purity of DEF is particularly impor-
tant with respect to avoiding malfunctions in the
BlueTEC exhaust gas aftertreatment system.
If DEF is pumped out of the DEF tank, e.g. during
repair work, it must not be returned to the tank.
The purity of the fluid can no longer be guaran-
teed.
Filling capacities
The total capacity of the DEF tank may vary,
depending on the vehicle equipment.
ModelTotal capacity
C 300 d 4MATIC9.0 US qt (8.5 l) or
26.4 US qt (25.0 l)
Engine oil
General notes
!Do not use engine oil or an oil filter with
specifications deviating from those expressly
required for the prescribed service intervals.
Do not change the engine oil or oil filter in
order to set replacement intervals longer than those prescribed. This could otherwise cause
damage to the engine or exhaust gas after-
treatment.
Follow the instructions on the service interval
display for changing the engine oil. This could
otherwise cause damage to the engine or
exhaust gas aftertreatment.
364Service products and filling capacities
Technical data