2018 MERCEDES-BENZ C-CLASS SEDAN check oil

Engaging park position automati-
cally ............................................... 147
Engaging reverse gear ................... 147
Engaging the park position ............ 146
Gearshift recommendation ............ 154
Gliding mode ................................. 149
Kickdown ....................................... 149
Manual shifting .............................. 152
Oil temperature (on-board com-
puter, Mercedes-AMG vehicles) ..... 226
Overview ........................................ 146
Permanent setting ......................... 152
Problem (malfunction) ................... 155
Pulling away ................................... 139
Starting the engine ........................ 138
Steering wheel paddle shifters ...... 152
Transmission position display
(DIRECT SELECT lever) ................... 148
Transmission positions .................. 148
Automatic transmission emer-
gency mode ....................................... 155
B
Back button ....................................... 271
Backup lamp
Display message ............................ 242
Replacing bulbs ............................. 119
Bag hook ............................................ 285
BAS (Brake Assist System) ................. 66
Basic settings
see Settings
Battery (SmartKey)
Checking .......................................... 81
Important safety notes .................... 80
Replacing ......................................... 81
Battery (vehicle)
Charging ........................................ 324
Display message ............................ 244
Important safety notes .................. 322
Jump starting ................................. 325
Belt
see Seat belts
Belt warning ......................................... 49
Blind Spot Assist
Activating/deactivating (on-
board computer) ............................ 223
Display message ............................ 248 Notes/function .............................. 200
see Active Blind Spot Assist
Blower
see Climate control
BlueTEC
see DEF
Bluetooth
®
Connecting a different mobile
phone ............................................ 278
Searching for a mobile phone ........ 278
see also Digital Operator's Man-
ual .................................................. 270
Telephony ...................................... 277
Box (trunk) ......................................... 286
Brake
Active Brake Assist with cross-
traffic function ................................. 73
Brake Assist
see BAS (Brake Assist System)
Brake assistance
see BAS (Brake Assist System)
Brake fluid
Display message ............................ 236
Notes ............................................. 365
Brake force distribution
see EBD (electronic brake force
distribution)
Brake linings
Display message ............................ 236
Brakes
ABS .................................................. 66
Adaptive Brake Assist ...................... 68
BAS .................................................. 66
Brake fluid (notes) ......................... 365
Display message ............................ 231
EBD .................................................. 72
High-performance brake system .... 168
Hill start assist ............................... 140
HOLD function ............................... 179
Important safety notes .................. 166
Maintenance .................................. 167
Parking brake ................................ 162
Riding tips ...................................... 166
Warning la mp ................................. 260
Bre

akdown
Where will I find...? ........................ 316
see Flat tire
see Towing away
6Index

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

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

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

GWARNING
If you switch off the ignition while driving,
safety-relevant functions are only available
with limitations, or not at all. This could affect, for example, the power steering and the brake
boosting effect. You will require considerably
more effort to steer and brake. There is a risk
of an accident.
Do not switch off the ignition while driving.
GWARNING
If the parking brake has not been fully
released when driving, the parking brake can:
Roverheat and cause a fire
Rlose its hold function.
There is a risk of fire and an accident. Release
the parking brake fully before driving off.
!Do not warm up the engine with the vehicle
stationary. Drive off immediately. Avoid high
engine speeds and driving at full throttle until
the engine has reached its operating temper-
ature.
Only shift the automatic transmission to the
desired drive position when the vehicle is sta-
tionary.
Where possible, avoid spinning the drive
wheels when pulling away on slippery roads.
You could otherwise damage the drive train.
!Mercedes-AMG vehicles: at low engine oil
temperatures below 68 ‡ (+20 †), the max-
imum engine speed is restricted in order to
protect the engine. To protect the engine and
maintain smooth engine operation, avoid driv-
ing at full throttle when the engine is cold.
Hybrid vehicles: It is essential to read the infor-
mation in the supplementary manual. Other-
wise, you may not recognize dangers.
Key positions
SmartKey
gTo remove the SmartKey
1Power supply for some consumers, such as
the windshield wipers
2Ignition (power supply for all consumers)
and drive position
3To start the engine
iThe SmartKey can be turned in the ignition
lock even if it is not the correct SmartKey for
the vehicle. The ignition is not switched on.
The engine cannot be started.
Vehicles with AIRPANEL: you can open the
shutters in the radiator trim by turning the
SmartKey to position 2in the ignition lock.
After approximately 120 seconds the shutters
open automatically. Further information on
opening and cleaning the shutters
(
Ypage 312).
Start/Stop button
General notes
When you insert the Start/Stop button into the
ignition lock, the system needs approximately
two seconds recognition time. You can then use
the Start/Stop button.
Pressing the Start/Stop button several times in
succession corresponds to the different Smart-
Key positions in the ignition lock. This is only the case if you are not depressing the brake pedal.
If you depress the brake pedal and press the
Start/Stop button, the engine starts immedi-
ately.
A check which periodically establishes a radio
connection between the vehicle and the Smart-
Key determines whether a valid SmartKey is in
136Driving
Driving and parking

Problems with the transmission
ProblemPossible causes/consequences andMSolutions
The transmission has
problems shifting gear.The transmission is losing oil.
XHave the transmission checked at a qualified specialist workshop
immediately.
The acceleration ability
is deteriorating.
The transmission no lon-
ger changes gear.The transmission is in emergency mode.
It is possible to shift to a gear and reverse gear only.
XStop the vehicle.
XShift the transmission to positionj.
XSwitch off the engine.
XWait at least ten seconds before restarting the engine.
XShift the transmission to positionhork.
If h is selected, the transmission only shifts to one gear; if kis
selected, the transmission shifts to reverse gear.
XHave the transmission checked at a qualified specialist workshop
immediately.
Transfer case
This section is only valid for vehicles with 4-
wheel drive (4MATIC). Power is always trans-
mitted to both axles.
!Performance tests may only be carried out
on a 2-axle dynamometer. The brake system
or transfer case could otherwise be damaged. Contact a qualified specialist workshop for a
performance test.
!Since ESP®engages automatically, the igni-
tion must be switched off (the SmartKey or
Start/Stop button must be in position gor
1) if
Rthe electrical parking brake is being tested
using a dynamometer
Rthe vehicle is being towed with only one
axle raised (not permitted for vehicles with
4MATIC)
Otherwise, the brake system can be dam-
aged.
!Vehicles with 4MATIC must not be towed
with either the front or the rear axle raised, as
doing so will damage the transmission.
Refueling
Important safety notes
GWARNING
Fuel is highly flammable. If you handle fuel
incorrectly, there is a risk of fire and explo-
sion.
You must avoid fire, open flames, creating
sparks and smoking. Switch off the engine
and, if applicable, the auxiliary heating before refueling.
GWARNING
Fuel is poisonous and hazardous to health.
There is a risk of injury.
You must make sure that fuel does not come into contact with your skin, eyes or clothing
and that it is not swallowed. Do not inhale fuel
vapors. Keep fuel away from children.
If you or others come into contact with fuel,
observe the following:
RWash away fuel from skin immediately
using soap and water.
RIf fuel comes into contact with your eyes,
immediately rinse them thoroughly with
Refueling155
Driving and parking
Z

Display messagesPossible causes/consequences andMSolutions
4
CheckEngineOilAtNextRefueling
The engin eoil level has dropped to th eminimum level.
A warning tone also sounds.
!Avoid lon gjourneys wit hto olittl eengin eoil. The engin ewill oth-
erwise be damaged.
XChec kth eoil level when next refueling, at th elatest (Ypage 305).
XIf necessary, add engin eoil (Ypage 305).
If you have to ad dengin eoil frequently:
XContac t aqualified specialist workshop and hav eth eengin e
checked.
Information on approve dengin eoils can be obtained from aqualified
specialist workshop or on th eInternet at http://bevo.mercedes -
benz.co m.
4
Check Engine OilLevel(Add1quart)(USA)Check EngineOil Level (Add 1Liter)(Canada)
Mercedes-AMG C 63 vehicles:
The engine oil level has dropped to the minimum level.
!Avoid long journeys with too little engine oil. The engine will oth-
erwise be damaged.
XCheck the oil level when next refueling, at the latest (Ypage 305).
XIf necessary, add engine oil (Ypage 305).
If you have to add engine oil frequently:
XContact a qualified specialist workshop and have the engine
checked.
Information on approved engine oils can be obtained from a qualified
specialist workshop or on the Internet at http://bevo.mercedes-
benz.com.
4
Engine Oil LevelLow Stop VehicleTurn Engine Off
Mercedes-AMG C 63 vehicles:
The engine oil level is too low. There is a risk of engine damage.
XPull over and stop the vehicle safely and switch off the engine, pay-
ing attention to road and traffic conditions.
XSecure the vehicle against rolling away (Ypage 161).
XCheck the engine oil level (Ypage 305).
XIf necessary, add engine oil (Ypage 305).
8
Fuel Level Low
The fuel level has dropped into the reserve range.
XRefuel at the nearest gas station.
CThere is only a very small amount of fuel in the fuel tank.
XRefuel at the nearest gas station without fail.
Display messages245
On-board computer and displays
Z

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