2013 MERCEDES-BENZ CLS-Class coolant level

Setting the air distribution
.............130
Setting the airflow ......................... 131
Setting the air vents
...................... 133
Setting the climate mode (AIR
FLOW) ............................................ 129
Setting the temperature ................ 130
Switching air-recirculation mode
on/off ............................................ 132
Switching on/off ........................... 128
Switching residual heat on/off ...... 133
Switching the rear window
defroster on/off ............................ 132
Switching the ZONE function on/
off .................................................. 131
Cockpit
Overview .......................................... 28
see Instrument cluster
Collapsible spare wheel
Inflating ......................................... 359
see Emergency spare wheel
COMAND
see separate operating instructions
COMAND display
Cleaning ......................................... 307
Combination switch ..........................113
Compass Calibrating ..................................... 295
Calling up ....................................... 294
Setting ........................................... 295
Consumption statistics (on-board
computer) .......................................... 212
Convenience closing feature ..............88
Convenience opening feature ............88
Coolant (engine) Checking the level ......................... 300
Display message ............................ 239
Filling capacity ............................... 370
Important safety notes .................. 369
Temperature (on-board computer) . 224
Temperature gauge ........................ 209
Warning lamp ................................. 264
Cooling
see Climate control
Cornering light function
Display message ............................ 236
Function/notes ............................. 114
Crash-responsive emergency
lighting ............................................... 118Cruise control
Activation conditions ..................... 165
Cruise control lever .......................165
Deactivating ................................... 167
Display message ............................ 247
Driving system ............................... 165
Function/notes ............................. 165
Important safety notes .................. 165
Setting a speed .............................. 166
Storing and maintaining current
speed ............................................. 166
Cup holder
Center console .............................. 276
Center console in the rear
compartment ................................. 277
Important safety notes .................. 276
Rear compartment ......................... 277
Customer Assistance Center (CAC) ...24
Customer Relations Department .......24 D
Dashboard see Instrument cluster


Dashboard lighting
see Instrument cluster lighting
Data
see Technical data
Daytime running lamps
Display message ............................ 238
Function/notes ............................. 111
Switching on/off (on-board
computer) ...................................... 221
Dealerships
see Qualified specialist workshop
Delayed switch-off
Exterior lighting (on-board
computer) ...................................... 221
Interior lighting .............................. 222
Diagnostics connection ......................23
Digital speedometer .........................213
DIRECT SELECT lever see Automatic transmission
Display message
ASSYST PLUS ................................ 302
Display messages
Calling up (on-board computer) ..... 228
Driving systems ............................. 242 Index
7

Opening/closing (automatically
from outside)
................................... 84
Opening/closing (manually from
outside) ............................................
83
Trunk lid
Display message ............................ 252
Opening/closing .............................. 82
Opening dimensions ...................... 371
Trunk load (maximum) ...................... 371
Turn signals Display message ............................ 236
Switching on/off ........................... 113
Type identification plate
see Vehicle identification plate U
Unlocking Emergency unlocking .......................82
From inside the vehicle (central
unlocking button) ............................. 81V
Vanity mirror (in the sun visor) ........

278
Vehicle Data acquisition ............................... 25
Display message ............................ 251
Equipment ....................................... 21
Individual settings ..........................219
Limited Warranty ............................. 25
Loading .......................................... 337
Locking (in an emergency) ............... 82
Locking (SmartKey) .......................... 75
Lowering ........................................ 352
Maintenance .................................... 22
Parking for a long period ................ 159
Pulling away ................................... 141
Raising ........................................... 350
Reporting problems .........................24
Securing from rolling away ............349
Towing away .................................. 318
Transporting .................................. 321
Unlocking (in an emergency) ........... 82
Unlocking (SmartKey) ......................75
Vehicle data ................................... 371
Vehicle data ....................................... 371
Vehicle dimensions ...........................371Vehicle emergency locking
................82
Vehicle identification number see VIN


Vehicle identification plate ..............365
Vehicle level AIRMATIC ...................................... 180
Vehicle level (display message) .......243
Vehicle tool kit .................................. 312
Video Operating the DVD ......................... 216
VIN ...................................................... 365 W
Warning and indicator lamps ABS

................................................ 258
Brakes ........................................... 257
Check Engine ................................. 264
Coolant .......................................... 264
Distance warning ........................... 266
DISTRONIC PLUS ........................... 266
ESP ®
.............................................. 260
ESP ®
OFF ....................................... 261
Fuel tank ........................................ 264
Overview .................................. 30, 255
PASSENGER AIR BAG OFF
indicator lamp .................................. 45
Reserve fuel ................................... 264
Seat belt ........................................ 256
SPORT handling mode ................... 261
SRS ................................................ 263
Tire pressure monitor .................... 267
Warranty ............................................ 364
Washer fluid Display message ............................ 253
Wheel bolt tightening torque ...........352
Wheel chock ...................................... 349
Wheels Changing a wheel .......................... 348
Checking ........................................ 327
Cleaning ......................................... 306
Cleaning (warning) .........................348
Emergency spare wheel ................. 357
Important safety notes .................. 326
Interchanging/changing ................348
Mounting a new wheel ................... 351
Mounting a wheel .......................... 349
Removing a wheel ..........................351 Index
19

i
The cooling with air dehumidification
function uses refrigerant R134a. This
coolant does not contain
chlorofluorocarbons, and therefore does
not damage the ozone layer.
Activating/deactivating X
To activate: press the ¿ button.
The indicator lamp in the ¿ button lights
up.
X To deactivate: press the ¿ button.
The
indicator lamp in the ¿ button goes
out. The cooling with air dehumidification
function has a delayed switch-off feature.
Problems with the cooling with air
dehumidification function When you press the
¿ button, the
indicator lamp in the button flashes three
times

or remains off. You can no longer switch
on the cooling with air dehumidification
function.
X Visit a qualified specialist workshop. Setting climate control to automatic
G
WARNING
If you switch off the cooling function, the
vehicle will not be cooled when weather
conditions

are warm. The windows can fog up
more quickly. Window fogging may impair
visibility and endanger you and others.
In automatic mode, the set temperature is
maintained automatically at a constant level.
The system automatically regulates the
temperature of the dispensed air, the airflow
and the air distribution.
Automatic mode will achieve optimal
operation if cooling with air dehumidification
is also activated. If desired, cooling with air
dehumidification can be deactivated. X
Turn the SmartKey to position 2 in the
ignition lock.
X Set the desired temperature.
X To activate: press the à button.
The
indicator lamp in the à button lights
up. Automatic air distribution and airflow
are activated.
i 3-zone automatic climate control: when
automatic mode is activated, you can
select a climate mode setting
(Y page 129).
X To switch off: press the _ button.
or
X Press the I or K button.
The
indicator lamp in the à button goes
out. Adjusting the climate mode settings
You can select the following climate mode
settings in automatic mode:
FOCUS high airflow that is set slightly cooler
MEDIUM medium airflow, standard setting
DIFFUSE low airflow that is set slightly warmer and with less draft
X Turn the SmartKey to position 2 in the
ignition lock.
X Press the à button.
X Press the ñ button repeatedly until the
desired climate mode appears in the
display. Operating the climate control systems
129
Climate control Z

Problems with the engine
Problem Possible causes/consequences and
M SolutionsThe engine does not
start.
The starter motor
can be heard. R
There is a malfunction in the engine electronics.
R There is a malfunction in the fuel supply.
X Before attempting to start the engine again, turn the SmartKey
in

the ignition back to position 0 or press the Start/Stop button
repeatedly until all indicator lamps in the instrument cluster go
out.
X Try to start the engine again (Y page 141). Avoid excessively
long

and frequent attempts to start the engine as these will drain
the battery.
If the engine does not start after several attempts:
X Consult a qualified specialist workshop. The engine does not
start. You cannot hear
the starter motor. The on-board voltage is too low because the battery is too weak
or discharged.
X
Jump-start the vehicle (Y page 317).
If the engine does not start despite attempts to jump-start it:
X Consult a qualified specialist workshop. The starter motor was exposed to a thermal load that was too high.
X
Allow the starter motor to cool down for approximately two
minutes.
X Try to start the engine again.
If the engine still does not start:
X Consult a qualified specialist workshop. The engine is not
running smoothly and
is misfiring. 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.
X Have the cause rectified immediately at a qualified specialist
workshop.
Otherwise, non-combusted fuel may get into the catalytic
converter and damage it. 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 300). Observe the warning
notes as you do so and add coolant if necessary. Driving
145
Driving and parking Z

Displays and controls
Instrument cluster
:
Speedometer with segments (Y page 210)
; Multifunction display ( Y page 211)
= Tachometer (Y page 209)
? Coolant temperature ( Y page 209)
A Fuel gauge Coolant temperature display
G
WARNING
Driving when your engine is overheated can
cause some fluids which may have leaked into
the engine compartment to catch fire. You
could be seriously burned.
Steam from an overheated engine can cause
serious burns which can occur just by opening
the engine hood. Stay away from the engine
if you see or hear steam coming from it.
Stop the vehicle in a safe location away from
other traffic. Turn off the engine, get out of the
vehicle and do not stand near the vehicle until
the engine has cooled down.
! A display message is shown if the coolant
temperature is too high. If the coolant temperature is over
248 ‡(120 †),

do not continue driving. The
engine will otherwise be damaged.
The coolant temperature gauge is in the
instrument cluster on the left-hand side
(Y page 29).
Under normal operating conditions and with
the specified coolant level, the coolant
temperature may rise to 248 ‡ (120 †). Tachometer
! Do not drive in the overrevving range, as
this could damage the engine.
The

red band in the tachometer indicates the
engine's overrevving range.
The fuel supply is interrupted to protect the
engine when the red band is reached. Displays and controls
209
On-board computer and displays Z

Display messages Possible causes/consequences and
M SolutionsAdaptive Highbeam
Assist Inoperative Adaptive Highbeam Assist is faulty.
X
Visit a qualified specialist workshop. Adaptive Highbeam
Assist Currently
Unavailable See
Operator's Manual Adaptive Highbeam Assist is deactivated and temporarily
inoperative. Possible causes are:
R
the windshield in the camera's field of vision is dirty.
R visibility is impaired due to heavy rain, snow or fog.
X Clean the windshield.
If the system detects that the camera is fully operational again,
the Adaptive Highbeam Assist Now Available message is
displayed.
Adaptive Highbeam Assist is operational again. Engine
Display messages Possible causes/consequences and
M Solutions+
Check Coolant
Level See
Operator's Manual The coolant level is too low.
!
Avoid
making long journeys with too little coolant in the engine
cooling system. The engine will otherwise be damaged.
X Add coolant, observing the warning notes before doing so
(Y page 300).
X If coolant needs to be added more often than usual, have the
engine coolant system checked at a qualified specialist
workshop. ? The fan motor is faulty.
X
At coolant temperatures under 248 ‡(120 †),
drive to the next
qualified specialist workshop.
X Avoid subjecting the engine to heavy loads, e.g. driving in
mountainous terrain, and stop-and-go traffic. Display messages
239
On-board computer and displays Z

Display messages Possible causes/consequences and
M Solutions?
Coolant Too Hot
Stop Vehicle Turn
Engine Off The coolant is too hot.
A warning tone also sounds.
G WARNING
Do not drive when your engine is overheated. This can cause some
fluids which may have leaked into the engine compartment to
catch fire.
Steam from the overheated engine can also cause serious burns
which can occur just by opening the hood.
There is a risk of injury.
X Pull over and stop the vehicle safely and switch off the engine,
paying attention to road and traffic conditions.
X Secure the vehicle against rolling away ( Y page 157).
X Leave the vehicle and keep a safe distance from the vehicle until
the engine has cooled down.
X Make sure that the air supply to the engine radiator is not
blocked, e.g. by snow, slush or ice.
X Do not start the engine again until the display message goes out
and the coolant temperature is under 248 ‡ (120
†).
Otherwise, the engine could be damaged.
X Pay attention to the coolant temperature display.
X If the temperature increases again, visit a qualified specialist
workshop immediately.
Under normal operating conditions and with the specified coolant
level, the coolant temperature may rise to
248 ‡ (120 †).240
Display messages
On-board computer and displays

Engine
Problem Possible causes/consequences and
M Solutions;
The yellow Check
Engine warning lamp
lights up while the
engine is running.
There may be a malfunction, for example:
R
in the engine management
R in the fuel injection system
R in the exhaust system
R in the ignition system
R in the fuel system
The emission limit values may be exceeded and the engine may
be running in emergency mode.
X Have the vehicle checked as soon as possible at a qualified
specialist workshop.
i In some states, you must immediately visit a qualified
specialist
workshop as soon as the yellow Check Engine warning
lamp lights up. This is due to the legal requirements in effect in
these states. If in doubt, check whether such legal regulations
apply in the state in which you are currently driving. 8
The yellow reserve fuel
warning lamp lights up
while the engine is
running.
The fuel level has dropped into the reserve range.
X
Refuel at the nearest gas station. 8
The yellow reserve fuel
warning lamp flashes
while the vehicle is in
motion.
In addition, the ;
Check Engine warning
lamp may light up.
The fuel system pressure is too low. The fuel filler cap is not closed
correctly or the fuel system is leaking.
X
Check that the fuel filler cap is correctly closed.
X If the fuel filler cap is not correctly closed:
close the fuel filler
cap.
X If the fuel filler cap is closed: visit a qualified specialist
workshop. ?
The red coolant
warning lamp lights up
while the engine is
running

and the coolant
temperature gauge is
at the start of the scale. The temperature sensor for the coolant temperature gauge is
defective.
The
coolant temperature is no longer being monitored. There is a
risk of engine damage if the coolant temperature is too high.
X Pull over and stop the vehicle safely and switch off the engine,
paying

attention to road and traffic conditions. Do not continue
driving under any circumstances.
X Secure the vehicle against rolling away ( Y page 157).
X Consult a qualified specialist workshop.264
Warning and indicator lamps in the instrument cluster
On-board computer and displays