coolant MERCEDES-BENZ CLS 2018 Owners Manual

Convenience closing feature .............. 88
Convenience opening feature ............ 88
Coolant (engine)
Checking the level ........................ .2 68
Display message ............................ 213
Filling capacity ............................... 327
Important safety notes .................. 326
Temperature (on-board computer,
Mercedes-AMG vehicles) .............. .2 01
Temperature gauge ........................ 188
Warning lamp ................................. 232
Cooling
see Climate control
Copyright ............................................. 32
Cornering light function
Display message ............................ 212
Function/notes ............................ .1 07
Cruise control
Activation conditions ..................... 148
Cruise control lever ....................... 148
Deactivating ................................... 149
Display message ............................ 220
Driving system ............................... 148
Function/notes ............................ .1 48
Important safety notes .................. 148
Setting a speed .............................. 149
Storing and maintaining current
speed ............................................. 148
Cup holder
Center console .............................. 249
Center console in the rear com-
partment ........................................ 249
Important safety notes .................. 248
Rear compartment ......................... 249
Customer Assistance Center
(CAC) ..................................................... 29
Customer Relations Department ....... 29
D
Dashboard
see Instrument cluster
Data
see Technical data
Data carrier
Selecting ........................................ 193
Daytime running lamps
Display message ............................ 212 Function/notes ............................ .1 05
Switching on/off (on-board com-
puter) ............................................. 198
Delayed switch-off
Exterior lighting (on-board com-
puter) ............................................. 198
Interior lighting .............................. 199
Diagnostics connection ..................... .2 9
Digital Operator's Manua l
Help ................................................ .2 4
Introduction .................................... .2 4
Digital speedomete r ........................ .1 91
DIRECT SELECT lever
Automatic transmission ................. 130
Display messages
ASSYST PLUS ................................ 269
Calling up (on-board computer) ..... 203
Driving systems ............................ .2 15
Engine ............................................ 213
General notes ................................ 203
Hiding (on-board computer) ........... 203
KEYLESS-GO .................................. 225
Lights ............................................. 212
Safety systems .............................. 204
SmartKey ....................................... 225
Tires ............................................... 221
Vehicle .......................................... .2 23
Distance recorder ............................ .1 90
Distance warning (warning lamp) .... 234
Distance warning function
Function/notes ................................ 68
DISTRONIC PLUS
Activating ....................................... 151
Activation conditions ..................... 151
Deactivating ................................... 155
Display message ............................ 218
Displays in the multifunction dis-
play ................................................ 154
Function/notes ............................. 149
Important safety notes .................. 150
Se tti
ng the specified minimum
distance ......................................... 153
Stopping ........................................ 153
Doors
Automatic locking (on-board com-
puter) ............................................. 199
Automatic locking (switch) ............... 828
Index

Switching seat heating on/off ......... 97
Switching seat ventilation on/off .... 98
Section
Trunk ............................................... 83
Securing cargo .................................. 246
Selector lever
Cleaning ......................................... 275
Sensors (cleaning instructions) ....... 274
Service menu (on-board com-
puter) .................................................. 197
Service message
see ASSYST PLUS
Service products
Brake fluid ..................................... 326
Coolant (engine) ............................ 326
Engine oil ....................................... 325
Fuel ................................................ 324
Important safety notes .................. 323
Refrigerant (air-conditioning sys-
tem) ............................................... 327
Washer fluid ................................... 327
Setting the air distribution ............... 118
Setting the airflow ............................ 118
Setting the date/time format
see also Digital Operator's Man-
ual .................................................. 236
Setting the language
see also Digital Operator's Man-
ual .................................................. 236
Setting the time
see also Digital Operator's Man-
ual .................................................. 236
Settings
Factory (on-board computer) ......... 200
On-board computer ....................... 197
SETUP (on-board computer) ............. 201
Side impact air bag ............................. 47
Side marker lamp (display mes-
sage) ................................................... 212
Side windows
Cleaning ......................................... 273
Convenience closing feature ............ 88
Convenience opening feature .......... 88
Important safety information ........... 87
Opening/closing .............................. 87
Problem (malfunction) ..................... 89
Resetting ......................................... 89 Reversing feature ............................. 87
SIRIUS services
see also Digital Operator's Man-
ual .................................................. 236
Sliding sunroof
Important safety notes .................... 90
Opening/closing .............................. 91
Problem (malfunction) ..................... 91
Resetting ......................................... 91
SmartKey
Changing the battery ....................... 79
Changing the programmi ng ............. 77
C h ecking the battery ....................... 79
Convenience closing feature ............ 88
Convenience opening feature .......... 88
Display message ............................ 225
Door central locking/unlocking ....... 76
Important safety notes .................... 76
Loss ................................................. 80
Mechanical key ................................ 78
Overview .......................................... 76
Positions (ignition lock) ................. 123
Problem (malfunction) ..................... 80
Starting the engine ........................ 125
SMS
see also Digital Operator's Man-
ual .................................................. 236
Snow chains ...................................... 294
Sockets
Center console .............................. 253
General notes ................................ 253
Rear compartment ......................... 254
Sound
Switching on/off ........................... 237
Spare wheel
Stowing .......................................... 319
Special seat belt retractor .................. 58
Specialist workshop ............................ 29
Speed, controlling
see Cruise control
Speedometer
Digital ............................................ 191
In the Instrument cluster ................. 34
Segments ...................................... 188
Selecting the display unit ............... 197
SPORT handling mode
Deactivating/activating
(Mercedes-AMG vehicles) ................ 7118
Index

Warning lamp ................................. 231
Standing lamps
Display message ........................... .2 12
Switching on/off ........................... 106
Start/stop function
see ECO start/stop function
Starting (engine) ................................ 124
Steering
Display message ............................ 225
Steering Assist and Stop&Go Pilot
(DISTRONIC PLUS)
Activating/deactivating ................. 196
Display message ............................ 220
Steering wheel
Adjusting (electrically) ..................... 99
Button overview ............................... 35
Buttons (on-board computer) ......... 189
Cleaning ......................................... 275
Important safety notes .................... 98
Paddle shifters ............................... 135
Steering wheel heating .................... 99
Storing settings (memory func-
tion) ............................................... 104
Steering wheel heating
Problem (malfunction) ..................... 99
Switching on/off .............................. 99
Steering wheel paddle shifters ....... .1 35
Stopwatch (RACETIMER) ................... 201
Stowage areas ................................... 242
Stowage compartments
Armrest (under) ............................ .2 44
Center console .............................. 243
Center console (rear) ..................... 244
Cup holders ................................... 248
Eyeglasses compartment .............. .2 43
Glove box ....................................... 243
Important safety information ......... 242
Rear ............................................... 244
Stowage net ................................... 245
Under driver's seat/front-
passenger seat .............................. 244
Stowage net ....................................... 245
Stowage well beneath the trunk
floor .................................................... 247
Summer tires ..................................... 294
Sun visor ............................................ 250 Surround lighting (on-board com-
puter) .................................................. 198
Suspension setting
AIRMATIC ...................................... 160
AMG adaptive sport suspension
system ........................................... 161
Sus pens ion settings
SET
UP (on-board computer) .......... 201
Switching air-recirculation mode
on/off ................................................. 120
Switching on media mode
Via the device list .......................... 241
T Tachometer ........................................ 188
Tail lamps
Display message ............................ 212
Tank
see Fuel tank
Tank content
Fuel gauge ....................................... 34
Technical data
Capacities ...................................... 323
Emergency spare wheel ................. 318
Information .................................... 321
Tires/wheels ................................. 317
Vehicle data ................................... 328
Telephone
Accepting a call (multifunction
steering wheel) .............................. 194
Authorizing a mobile phone (con-
necting) ......................................... 240
Connecting a mobile phone (gen-
eral information) ............................ 239
Display message ............................ 225
Menu (on-board computer) ............ 194
Number from the phone book ........ 194
Redialing ........................................ 195
Rejecting/ending a call ................. 194
see also Digital Operator's Man-
ual .................................................. 236
Switching between mobile
phones ........................................... 241
Temperature
Coolant .......................................... 188
Coolant (on-board computer,
Mercedes-AMG vehicles) ............... 201 Index 19

Data acquisition ............................... 30
Display message ............................ 223
Equipment ....................................... 26
Individual settings .......................... 197
Limited Warranty ............................. 30
Loading .......................................... 302
Locking (in an emergency) ............... 83
Locking (SmartKey) .......................... 76
Lowering ........................................ 316
Maintenance .................................... 27
Parking for a long period ................ 143
Pulling away ................................... 125
Raising ........................................... 313
Reporting problems ........................ .2 9
Securing from rolling away ............ 313
Towing away .................................. 287
Transporting .................................. 289
Unlocking (in an emergency) ........... 83
Unlocking (SmartKey) ...................... 76
Vehicle data ................................... 328
Vehicle data ....................................... 328
Vehicle dimensions ........................... 328
Vehicle emergency locking ................ 83
Vehicle identification number
see VIN
Vehicle identification plate .............. 322
Vehicle level
AIRMATIC ...................................... 159
Vehicle level (display message) ....... 215
Vehicle tool kit .................................. 277
Video
Operating the DVD ......................... 193
see also Digital Operator's Man-
ual .................................................. 236
VIN
Seat ............................................... 323
Type plate ...................................... 322
Voice Control System
see See also Digital Operator's Manual
W
Warning and indicator lamps
ABS ................................................ 229
Brakes ........................................... 228
Check Engine ................................. 232
Coolant .......................................... 232
Distance warning ........................... 234 ESP ®
.............................................. 229
ESP ®
OFF ....................................... 230
Fuel tank ........................................ 232
General notes ................................ 226
Overview .......................................... 34
PASSENGER AIR BAG OFF ............... 42
Reserve fuel ................................... 232
Restraint system ............................ 231
Seat belt ........................................ 227
SPORT handling mode ................... 231
Tire pressure monitor .................... 235
Warranty .............................................. 26
Washer fluid
Display message ............................ 225
Weather display (COMAND)
see also Digital Operator's Man-
ual .................................................. 236
Wheel and tire combinations
Tires ............................................... 317
Wheel bolt tightening torque ........... 316
Wheel chock ...................................... 313
Wheels
Changing a wheel .......................... 312
Checking ........................................ 292
Cleaning ......................................... 273
Emergency spare wheel ................. 317
Important safety notes .................. 292
Information on driving .................... 292
Interchanging/changing ................ 312
Mounting a new wheel ................... 315
Mounting a wheel .......................... 313
Removing a wheel .......................... 315
Storing ........................................... 313
Tightening torque ........................... 316
Wheel size/tire size ....................... 317
Window curtain air bag
Operation ......................................... 49
Windows
see Side windows
Windshield
Defrosting ...................................... 118
Windshield washer fluid
see Windshield washer system
Windshield washer system
Adding washer fluid ....................... 269
Important safety notes .................. 32722
Index

Problem
Possible causes/consequences and P Solutions
The engine is not running
smoothly and is misfir-
ing. There is a malfunction in the engine electronics or in a mechanical
component of the engine management system. X
Only depress the accelerator pedal slightly.
Otherwise, non-combusted fuel may get into the catalytic converter
and damage it. X
Have the cause rectified immediately at a qualified specialist work-
shop.
The coolant temperature
gauge shows a value
above 248 ‡ (120 †). The coolant level is too low. The coolant is too hot and the engine is no
longer being cooled sufficiently. X
Stop as soon as possible and allow the engine and the coolant to
cool down. X
Check the coolant level ( Y
page 268). Observe the warning notes
as you do so and add coolant if necessary.
Automatic transmission
Important safety notes
G WARNING
If the engine speed is above the idling speed
and you engage transmission position D or R ,
the vehicle could pull away suddenly. There is
a risk of an accident.
When engaging transmission position D or R ,
always firmly depress the brake pedal and do
not simultaneously accelerate.
G WARNING
The automatic transmission switches to neu-
tral position N when you switch off the engine.
The vehicle may roll away. There is a risk of an
accident.
After switching off the engine, always switch
to parking position P . Prevent the parked vehi-
cle from rolling away by applying the parking
brake. Selector lever (Mercedes-AMG vehi-
cles)
Overview of transmission positions
]
Park position with parking lock ^
Reverse gear \\
Neutral [
Drive
Transmission position and drive pro-
gram display The current transmission position and drive pro-
gram appear in the multifunction display.Automatic transmission 129
Driving and parking Z

Important safety notes
G WARNIN G
If you operate information systems and com-
munication equipmen t integrate d in th e vehi-
cle while driving , you will be distracte d from
traffic conditions. You could also lose control
of th e vehicle. Ther e is a ris k of an accident.
Only operate th e equipmen t when th e traffic
situation permits. If you are no t sur e that this
is possible , park th e vehicl e payin g attention
to traffic condition s and operate th e equip-
men t when th e vehicl e is stationary.
You must observ e th e legal requirements for th e
country in whic h you are currentl y driving when
operating th e on-board computer.
G WARNIN G
If th e instrumen t cluste r has faile d or mal-
functioned, you may no t recognize function
restriction s in systems relevan t to safety. The
operating safet y of your vehicl e may be
impaired . Ther e is a ris k of an accident.
Drive on carefully. Hav e th e vehicl e checke d
at a qualified specialist workshop immedi-
ately.
The on-board computer only shows message s or
warning s from certain systems in th e multifunc-
tion display. You should therefor e mak e sur e
your vehicl e is operating safely at all times .
If th e operating safet y of your vehicl e is
impaired , pull ove r as soo n as it is saf e to do so.
Contac t a qualified specialist workshop.
Fo r an overview, see th e instrumen t panel illus-
tration ( Y
page 34).
Displays and operation
Speedometer with segments
The segments in th e speedometer indicat e
whic h spee d range is available.R
Cruis e control activated ( Y
page 148):
The segments ligh t up from th e store d spee d
to th e en d of th e scale.R
DISTRONI C PLU S activated ( Y
page 149): On e or two segments in th e set spee d range
ligh t up. R
DISTRONI C PLU S detects a vehicl e in fron t
moving mor e slowly than th e store d speed:
The segments between th e spee d of th e vehi-
cle in fron t and th e store d spee d ligh t up.
Tachometer
! Do no t driv e in th e overrevving range, as this
could damag e th e engine.
The red ban d in th e tachometer indicates th e
engine's overrevving range.
The fuel suppl y is interrupted to protect th e
engin e when th e red ban d is reached.
Outside temperature display You should pay special attention to road condi-
tion s when temperatures are aroun d freezing
point.
Bea r in min d that th e outside temperature dis-
play indicates th e temperature measured and
does no t record th e road temperature.
The outside temperature display is in th e multi-
function display ( Y
page 190).
The multifunction display shows changes in th e
outside temperature wit h a delay.
Coolant temperature gauge
G WARNIN G
Opening th e hoo d when th e engin e is over-
heated or when there is a fir e in th e engin e
compartmen t could expos e you to hot gase s
or other servic e products . Ther e is a ris k of
injury.
Let an overheate d engin e cool down before
opening th e hood. If there is a fir e in th e
engin e compartment, keep th e hoo d closed
and contact th e fir e department.
! A display message is shown if th e coolan t
temperature is to o high .
If th e coolan t temperature is ove r 24 8 ‡
(12 0 †), do no t continue driving . The engin e
will otherwise be damaged.188
Displays and operation
On-board computer and displays

The coolant temperature gage is in the instru-
ment cluster on the left-hand side ( Y
page 34).
Under normal operating conditions and with the
specified coolant level, the coolant temperature
may rise to 248 ‡ (120 †).
Operating the on-board computer
Overview
C
Multifunction displayD
Right control panel

Warning/
indicator
lamp Q Signal type
Possible causes/consequences and P SolutionsX
At coolant temperatures below 248 ‡ (120 †), drive to the nearest qualified
specialist workshop. X
Avoid subjecting the engine to heavy loads, e.g. driving in mountainous terrain,
and stop-and-go traffic.
Driving systems Warning/
indicator
lamp Q Signal type
Possible causes/consequences and P Solutions

Additional service products
Import ant safety notes
G WARNIN G
Certain component s in th e engin e compart-
ment, suc h as th e engine, radiato r and part s
of th e exhaust system, can become ver y hot .
Working in th e engin e compartmen t poses a
ris k of injury.
Wher e possible, let th e engin e cool down and
touch only th e component s described in th e
following.
G WARNIN G
The engin e compartmen t contain s moving
components. Certain components, suc h as
th e radiato r fan , may continu e to run or start
again suddenly when th e ignition is off . There
is a ris k of injury.
If you need to do any wor k inside th e engin e
compartment: R
switch off th e ignitionR
never reac h int o th e area wher e there is a
ris k of danger from moving components,
suc h as th e fan rotation areaR
remove jewelr y and watchesR
keep items of clothing and hair , for exam-
ple, away from moving part s
G WARNIN G
The coolin g system is pressurized, particularly
when th e motor is warm . If you open th e cap ,
you could be scalded if hot coolan t sprays out .
There is a ris k of injury.
Let th e engin e cool down before you open th e
cap . Wear gloves and eye protection . Slowly
open th e cap to reliev e pressure.
G WARNIN G
Opening th e hoo d when th e engin e is over-
heated or when there is a fir e in th e engin e
compartmen t could expos e you to hot gase s
or other servic e products . There is a ris k of
injury. Let an overheate d engin e cool down before
opening th e hood. If there is a fir e in th e
engin e compartment, keep th e hoo d closed
and contact th e fir e department.
Checking coolant level
Exampl e X
Park th e vehicl e on a level surface.
Only chec k th e coolan t level when th e vehicl e
is on a level surfac e and th e engin e has cooled
down . X
Turn th e SmartKey to position 2 in th e ignition
loc k ( Y
page 123).
or X
On vehicles wit h KEYLESS-GO , press th e
Start/Sto p butto n twice ( Y
page 123).X
Chec k th e coolan t temperature display in th e
instrumen t cluster.
The coolan t temperature mus t be belo w
15 8 ‡ (70 †). X
Turn th e SmartKey to position 0 in th e ignition
loc k ( Y
page 123).
or X
Press th e Start/Sto p butto n once on vehicles
wit h KEYLESS-GO ( Y
page 123).X
Slowly tur n cap C half a tur n counter-clock -
wise and allow excess pressur e to escape.X
Turn cap C further counter-clockwise and
remove it .
If th e coolan t is at th e level of marke r bar

X
If necessary, add coolant that has been tested
and approved by Mercedes-Benz. X
Replace cap C and turn it clockwise as far as
it will go.
For further information on coolant, see
( Y
page 326).
Adding washer fluid to the windshield
washer system/headlamp cleaning
system
G WARNING
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 X
To open: pull cap C upwards by the tab.X
Add the premixed washer fluid. X
To close: press cap C 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 liter), a message appears in the multifunc-
tion display prompting you to add washer fluid
( Y
page 225).
Further information on washer fluid
( Y
page 327). Maintenance
ASSYST PLUS
Service messages 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).
You can obtain further information from an
authorized Mercedes-Benz Center or at
http://www.mbusa.com (USA only).
The ASSYST PLUS service interval display does
not show any information on the engine oil level.
Observe the notes on the engine oil level
( Y
page 267).
The multifunction display shows a service mes-
sage for several seconds, e.g.: R
Service A in .. Days R
Service A Due R
Service A Overdue by .. 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 or B , possibly in connection with a
number or another letter, shows the type of ser-
vice. A stands for a minor service and B for 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: X
Note down the service due date displayed in
the multifunction display before disconnect-
ing the battery.
or X
After reconnecting the battery, subtract the
battery disconnection periods from the ser-
vice date shown on the display.
Hiding a service message X
Press the v or 8 button on the steering
wheel.Maintenance 269
Maintenance and care Z