2018 MERCEDES-BENZ C-CLASS COUPE transmission oil

Gliding mode ................................. 139
Kickdown ....................................... 139
Manual shifting .............................. 142
Oil temperature (on-board com-
puter, Mercedes-AMG vehicles) ..... 212
Overview ........................................ 136
Permanent setting ......................... 142
Problem (malfunction) ................... 145
Pulling away ................................... 129
Starting the engine ........................ 128
Steering wheel paddle shifters ...... 142
Transmission position display
(DIRECT SELECT lever) ................... 138
Transmission positions .................. 138
Automatic transmission emer-
gency mode ....................................... 145
B
Back button ....................................... 257
Backup lamp
Display message ............................ 228
Bag hook ............................................ 270
BAS (Brake Assist System) ................. 64
Basic settings
see Settings
Battery (SmartKey)
Checking .......................................... 78
Important safety notes .................... 77
Replacing ......................................... 78
Battery (vehicle)
Charging ........................................ 307
Display message ............................ 230
Important safety notes .................. 305
Jump starting ................................. 308
Belt
see Seat belts
Blind Spot Assist
Activating/deactivating (on-
board computer) ............................ 209
Display message ............................ 234
Notes/function .............................. 186
see Active Blind Spot Assist
Blower
see Climate control
Bluetooth
®
Connecting a different mobile
phone ............................................ 264 Searching for a mobile phone ........ 263
see also Digital Operator's Man-
ual .................................................. 256
Telephony ...................................... 263
Brake
Active Brake Assist with cross-
traffic function ................................. 70
Brake Assist
see BAS (Brake Assist System)
Brake assistance
see BAS (Brake Assist System)
Brake fluid
Display message ............................ 222
Notes ............................................. 347
Brake force distribution
see EBD (electronic brake force
distribution)
Brake linings
Display message ............................ 222
Brakes
ABS .................................................. 64
Adaptive Brake Assist ...................... 66
BAS .................................................. 64
Brake fluid (notes) ......................... 347
Display message ............................ 217
EBD .................................................. 70
High-performance brake system .... 154
Hill start assist ............................... 130
HOLD function ............................... 165
Important safety notes .................. 152
Maintenance .................................. 153
Parking brake ................................ 149
Riding tips ...................................... 152
Warning lamp ................................. 246
Breakdown
Where will I find...? ........................ 299
see Flat tire
see Towing away
Brig htnes
s control (instrument
cluster lighting) ................................... 35
Buttons on the steering wheel ......... 197
C
California
Important notice for retail cus-
tomers and lessees .......................... 28
6Index

SD memory cardsee also Digital Operator's Man-
ual .................................................. 256
Search & Send
see also Digital Operator's Man-
ual .................................................. 256
Seat
Correct driver's seat position ........... 95
Seat belts
Adjusting the driver's and front-
passenger seat belt .........................4 8
Cleaning ........................................ .297
Correct usage .................................. 46
Fastening ......................................... 47
Important safety guidelines ............. 45
Introduction ..................................... 44
Releasing ......................................... 48
Warning lamp ................................. 245
Warning lamp (function) ................... 48
Seat function
see Seat
Seats
Adjusting (AMG Performance
Seat) ................................................ 99
Adjusting (electrically) ..................... 97
Adjusting the 4-way lumbar sup-
port ..................................................9 9
Adjusting the head restraint ............ 97
Calling up a stored setting (mem-
ory function) .................................. 106
Cleaning the cover ......................... 297
Folding the backrest (rear com-
partment) forwards/back .............. 268
Folding the backrests forward/
back ................................................. 98
Important safety notes .................... 95
Seat backrest display message ..... 242
Seat heating .................................. 100
Seat heating problem .................... 101
Seat ventilation .............................. 100
Seat ventilation problem ................ 101
Storing settings (memory func-
tion) ............................................... 106
Securing a load
see Securing cargo
Securing cargo .................................. 270
Selecting a gear
see Automatic transmission Selector le
ver
C
leaning ......................................... 297
see Automatic transmission
Sensors (cleaning instructions) ....... 295
Service center
see Qualified specialist workshop
Service Center
see Qualified specialist workshop
Service menu (on-board com-
puter) .................................................. 207
Service message
see ASSYST PLUS
Service products
Brake fluid ..................................... 347
Coolant (engine) ............................ 347
Engine oil ....................................... 346
Fuel ................................................ 344
Important safety notes .................. 344
Refrigerant (air-conditioning sys-
tem) ............................................... 348
Washer fluid ................................... 348
Setting the date/time format
see also Digital Operator's Man-
ual .................................................. 256
Setting the language
see also Digital Operator's Man-
ual .................................................. 256
Setting the time
see also Digital Operator's Man-
ual .................................................. 256
Settings
Factory (on-board computer) ......... 211
On-board computer ....................... 207
SETUP (on-board computer,
Mercedes-AMG vehicles) .................. 213
Side impact air bag ............................. 50
Side marker lamp (display mes-
sage) ................................................... 228
Side windows
Cleaning ......................................... 294
Convenience closing feature ............ 89
Convenience opening feature .......... 88
Important safety information ........... 87
Opening/closing .............................. 88
Problem (malfunction) ..................... 90
Resetting ......................................... 89
Reversing feature ............................. 87
Index19

Cup holders ...................................272
Door ............................................... 268
Eyeglasses compartment ...............2 67
Glove box ....................................... 267
Important safety information ......... 266
Map pockets .................................. 268
Stowage net ................................... 268
see Stowage areas
Stowage net ....................................... 268
Stowage well beneath the trunk
floor .................................................... 271
Summer opening
see Convenience opening feature
Summer tires
In winter ........................................ 318
Sun visor ............................................ 273
Suspension setting
AIRMATIC ...................................... 168
AMG adaptive sport suspension
system ...........................................1 69
Suspension tuning
SETUP (on-board computer,
Mercedes-AMG vehicles) ...............2 13
Switching air-recirculation mode
on/off ................................................. 121
Switching on media mode
Via the device list .......................... 265
T
Tachometer ........................................ 197
Tail lamps
Display message ............................ 228
Tank
see Fuel tank
Tank content
Fuel gauge ....................................... 36
Technical data
Capacities ...................................... 344
Information .................................... 342
Vehicle data ................................... 349
Telephone
Accepting a call (multifunction
steering wheel) .............................. 206
Authorizing a mobile phone (con-
necting) ......................................... 263
Connecting a mobile phone (gen-
eral information) ............................ 263 Display message ............................ 243
Introduction ................................... 206
Menu (on-board computer) ............ 206
Number from the phone book ........ 206
Redialing ........................................ 207
Rejecting/ending a call ................. 206
see also Digital Operator's Man-
ual .................................................. 256
Switching between mobile
phones ........................................... 264
see Mobile phone
Temperature
Coolant (display in the instrument
cluster) .......................................... 197
Engine oil (on-board computer,
Mercedes-AMG vehicles) ............... 212
Outside temperature ...................... 197
Setting (climate control) ................ 119
Transmission oil (on-board com-
puter, Mercedes-AMG vehicles) ..... 212
Through-loading feature ................... 268
Timing (RACETIMER) ......................... 214
Tire pressure
Calling up (on-board computer) ..... 323
Checking manually ........................ 322
Display message ............................ 238
Maximum ....................................... 322
Not reached (TIREFIT) .................... 303
Notes ............................................. 320
Reached (TIREFIT) .......................... 304
Recommended ............................... 319
Using the TIREFIT kit ...................... 302
Tire pressure loss warning system
General notes ................................ 322
Important safety notes .................. 322
Restarting ...................................... 323
Tire pressure monitor
Checking the tire pressure elec-
tronically ........................................ 325
Function/notes ............................. 323
Genera l note
s ................................ 323
Important safety notes .................. 323
Radio type approval for the tire
pressure monitor ........................... 326
Restarting ...................................... 325
Warning lamp ................................. 254
Warning message .......................... 325
Index21

Handwriting recognition ................ 258
Operating the touchpad ................. 258
Overview ........................................ 258
Quick access for Audio .................. 259
Switching ....................................... 258
Switching input line ....................... 258
Tow-starting
Emergency engine starting ............ 313
Important safety notes .................. 310
Towing a trailer
ESP
®(Electronic Stability Pro-
gram) ............................................... 70
Towing away
Important safety guidelines ........... 310
Installing the towing eye ................ 311
Notes for 4MATIC vehicles ............ 313
Removing the towing eye ............... 311
Transporting the vehicle ................ 312
With both axles on the ground ....... 312
With the rear axle raised ................ 311
Towing eye ......................................... 300
Traction system
see ETS/4ETS (Electronic Trac-
tion System)
Traffic reports
see also Digital Operator's Man-
ual .................................................. 256
Traffic Sign Assist
Activating/deactivating the warn-
ing function .................................... 208
Display message ............................ 235
Function/notes ............................. 186
Important safety notes .................. 186
Instrument cluster display ............. 186
Transfer case ..................................... 145
Transmission
Display message ............................ 241
see Automatic transmission
Transmission oil
Temperature (on-board computer,
Mercedes-AMG vehicles) ............... 212
Transmission position display ......... 138
Transporting the vehicle .................. 312
Trim pieces (cleaning instruc-
tions) .................................................. 297
Trip computer (on-board com-
puter) .................................................. 201 Trip odometer
Calling up ....................................... 200
Resetting (on-board computer) ...... 202
Trunk
Important safety notes .................... 82
Locking separately ........................... 86
Opening/closing (automatically
from inside) ...................................... 86
Openi
ng/closing (automatically
from outside) ................................... 84
Opening/closing (from outside,
HANDS-FREE ACCESS) .................... 85
Opening/closing (manually from
outside) ............................................ 83
Trunk lid
Display message ............................ 242
Object detection .............................. 83
Opening dimensions ...................... 349
Reversing feature ............................. 83
Turn signals
Display message ............................ 228
Replacing bulbs (front) ................... 113
Switching on/off ........................... 109
Two-way radio
Frequencies ................................... 342
Installation ..................................... 342
Transmission output (maximum) .... 342
Type identification plate
see Vehicle identification plate
U
UnlockingEmergency unlocking ....................... 82
From inside the vehicle (central
unlocking button) ............................. 81
USB devices
Connecting to the Media Inter-
face ............................................... 265
V
Vanity mirror (in the sun visor) ........ 273
Vehicle
Correct use ...................................... 31
Data acquisition ............................... 32
Display message ............................ 240
Electronics ..................................... 342
Equipment ....................................... 28
Index23

SmartKey
Important safety notes
GWARNING
If children are left unsupervised in the vehicle,
they could:
Ropen the doors, thus endangering other
people or road users.
Rget out and disrupt traffic.
Roperate the vehicle's equipment.
Additionally, children could set the vehicle in
motion if, for example, they:
Rrelease the parking brake.
Rshifting the automatic transmission out of
park position P
RStart the engine.
There is a risk of an accident and injury.
When leaving the vehicle, always take the
SmartKey with you and lock the vehicle. Never
leave children or animals unattended in the
vehicle. Always keep the SmartKey out of
reach of children.
GWARNING
If you attach heavy or large objects to the
SmartKey, the SmartKey could be uninten-
tionally turned in the ignition lock. This could
cause the engine to be switched off. There is a risk of an accident.
Do not attach any heavy or large objects to the
SmartKey. Remove any bulky key rings before
inserting the SmartKey into the ignition lock.
!Keep the SmartKey away from strong mag-
netic fields. Otherwise, the remote control
function could be affected.
Strong magnetic fields can occur in the vicin-
ity of powerful electrical installations.
Do not keep the SmartKey:
Rwith electronic devices, e.g. a mobile phone
or another SmartKey.
Rwith metallic objects, e.g. coins or metal foil.
Rinside metallic objects, e.g. a metal case.
This can affect the functionality of the Smart- Key. Vehicles with KEYLESS-GO start function:
do
not keep the SmartKey on the parcel shelf or in
the trunk. Otherwise, the SmartKey may not be
detected, e.g. when starting the engine using
the Start/Stop button.
A brief radio connection between the vehicle
and the SmartKey determines whether a valid
SmartKey is in, or in the direct vicinity of, the
vehicle. This occurs, for example:
Rwhen starting the engine
Rwhile driving
Rwhen using HANDS-FREE ACCESS
Rwhen the external door handles are touched
Rduring convenience closing
SmartKey functions
:& Locks the vehicle
;FOpens/closes the trunk lid
=%Unlocks the vehicle
XTo unlock centrally: press the%button.
If you do not open the vehicle within approx-
imately 40 seconds of unlocking:
Rthe vehicle is locked again.
Rprotection against theft is reactivated.
XTo lock centrally: press the&button.
The SmartKey centrally locks and unlocks the
following components:
Rthe doors
Rthe trunk lid
Rthe fuel filler flap
The turn signals flash once when unlocking and
three times when locking.
You can also set an audible signal to confirm
that the vehicle has been locked. The audible
signal can be activated and deactivated via the
SmartKey75
Opening and closing
Z

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.
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.
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
the vehicle. This occurs, for example, when
starting the engine.
126Driving
Driving and parking

To start the vehicle without actively using the
SmartKey:
Rthe Start/Stop button must be inserted in the
ignition lock.
Rthe SmartKey must be in the vehicle.
Rthe vehicle must not be locked with the
SmartKey or KEYLESS-GO. (Ypage 76)
Do not keep the SmartKey:
Rwith electronic devices, e.g. a mobile phone
or another SmartKey.
Rwith metallic objects, e.g. coins or metal foil.
Rinside metallic objects, e.g. a metal case.
This can affect the functionality of the Smart-
Key.
If you lock the vehicle with the SmartKey remote control or with KEYLESS-GO, after a short time:
Ryou will not be able to switch on the ignition
with the Start/Stop button.
Ryou will no longer be able to start the engine
with the Start/Stop button until the vehicle is
unlocked again.
If you lock the vehicle centrally using the button
on the front door (
Ypage 81), you can continue
to start the engine with the Start/Stop button.
The engine can be switched off while the vehicle
is in motion by pressing and holding the Start/
Stop button for three seconds. This function
operates independently of the ECO start/stop
automatic engine switch-off function.
Key positions with the Start/Stop button
:Start/Stop button
;Ignition lock
As soon as the ignition is switched on, all the
indicator lamps in the instrument cluster light
up. Warning and indicator lamps: see
(
Ypage 244). If Start/Stop button
:has not yet been
pressed, this corresponds to the SmartKey
being removed from the ignition.
XTo switch on the power supply: press
Start/Stop button :once.
The power supply is switched on. You can now activate the windshield wipers, for example.
The power supply is switched off again if:
Rthe driver's door is opened and
Ryou press Start/Stop button :twice when in
this position
XTo switch on the ignition: press Start/Stop
button :twice.
The ignition is switched on.
The ignition is switched off again if:
Ryou do not start the engine from this position within 15 minutes
Ryou press Start/Stop button :once when in
this position
The power supply is switched off again if:
Rthe driver's door is opened and
Ryou press Start/Stop button :once when in
this position
Removing the Start/Stop button
You can remove the Start/Stop button from the ignition lock and start the vehicle as normal
using the SmartKey.
It is possible to switch between Start/Stop but-
ton mode and key operation only when the
transmission is in position j.
XRemove Start/Stop button :from ignition
lock ;.
You do not have to remove the Start/Stop but-
ton from the ignition lock when you leave the
vehicle. You should, however, always take the
SmartKey with you when leaving the vehicle. As
long as the SmartKey is in the vehicle:
Rthe vehicle can be started using the Start/
Stop button
Rthe electrically powered equipment can be
operated
Driving127
Driving and parking
Z

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
Refueling145
Driving and parking
Z