2014 MERCEDES-BENZ CLS COUPE air filter

1, 2, 3 ...
4ETS see ETS/4ETS (Electronic Trac-
tion System)
4MATIC (permanent four-wheel
drive) .................................................. 206
4MATIC off-road system ...................206
12 V socket
see Sockets A
ABS (Anti-lock Braking System) Display message ............................ 262
Function/notes ................................ 70
Important safety notes .................... 70
Warning lamp ................................. 289
Accident
Automatic measures after an acci-
dent ................................................. 55
Activating/deactivating air-recir-
culation mode ................................... .148
Activating/deactivating cooling
with air dehumidification ................. 143
Active Blind Spot Assist
Activating/deactivating (on-
board computer) ............................ 250
Display message ............................ 276
Function/notes ............................ .227
Towing a trailer .............................. 229
Active Driving Assistance package .. 227
Active Lane Keeping Assist
Activating/deactivating (on-
board computer) ............................ 251
Display message ............................ 275
Function/notes ............................ .229
Towing a trailer .............................. 232
Active light function ......................... 127
Active multicontour seat
Adjusting (on the seat) .................. 110
Active Parking Assist
Detecting parking spaces .............. 211
Display message ............................ 277
Function/notes ............................ .210
Important safety notes .................. 210
Parking .......................................... 212
Towing a trailer .............................. 213 ADAPTIVE BRAKE
................................. 76
Adaptive brake lights .......................... 72
Adaptive Damping System (ADS) ..... 204
Adaptive Highbeam Assist
Display message ............................ 270
Function/notes ............................ .128
Switching on/off ........................... 129
AdBlue®
Display message ............................ 273
Filling capacity ............................... 404
Important safety notes .................. 403
Service indicator ............................ 333
AdBlue® service indicator ................ 333
Additives (engine oil) ........................ 404
Air filter (white display message) .... 273
AIR FLOW .......................................... .144
Air pressure
see Tyre pressure
Air vents
Glove compartment ....................... 155
Important safety notes .................. 154
Rear ............................................... 155
Setting .......................................... .154
Setting the centre air vents ........... 155
Setting the side air vents .............. .155
Air-conditioning system
see Climate control
Airbag
Introduction ..................................... 48
PASSENGER AIR BAG OFF indica-
tor lamp .......................................... .43
Airbags
Front airbag (driver, front
passenger) ...................................... .49
Important safety guidelines .............48
Kneebag ........................................... 49
Pelvis airbag .................................... 50
Sidebag ............................................ 50
Triggering .........................................51
Windowbag ...................................... 50
AIRMATIC
Display message ............................2 74
Function/notes ............................ .202
Alarm
ATA (Anti-Theft Alarm system) ......... 78
Switching off (ATA) .......................... 78 4
Index

Useful information
i This Owner's Manual describes all mod-
els, series and optional equipment for your
vehicle that were available at the time of
going to press. National variations are pos- sible. Note that your vehicle may not be
equipped with all of the functions descri-
bed. This is also the case for systems and
functions relevant to safety.
i Read the information on qualified special-
ist workshops: (Y page 26). Overview of climate control systems
Important safety notes
Observe the settings recommended on the
following pages. The windows could other-
wise mist up.
To prevent the windows from misting up:
R switch off climate control only briefly
R switch on air-recirculation mode only
briefly
R switch on the cooling with air dehumidifi-
cation function
R switch on the "demist windscreen" function
briefly, if required
Climate control regulates the temperature
and the humidity in the vehicle interior and
filters undesirable substances out of the air.
Climate control is only operational when the
engine is running. Optimum operation is only achieved when the side windows and the roof
are closed.
The residual heat function can only be acti-
vated or deactivated with the ignition
switched off (Y page 149).
i Ventilate the vehicle for a brief period
during warm weather, e.g. using the con-
venience opening feature (Y page 97). This
will speed up the cooling process and the
desired vehicle interior temperature will be
reached more quickly. i
The integrated filter filters out most par-
ticles of dust and soot and completely fil-
ters out pollen. It also reduces gaseous pol-
lutants and odours. A clogged filter reduces the amount of air supplied to the vehicle
interior. For this reason, you should alwaysobserve the interval for replacing the filter,
which is specified in the Service Booklet. As this depends on environmental conditions,
e.g. heavy air pollution, the interval may be shorter than stated in the Service Booklet. 138
Overview of climate control systemsClimate control

If you mix diesel fuel with petrol, the flash
point of this fuel mixture is lower than that of pure diesel fuel. When the engine is running,
components in the exhaust system may over-
heat unnoticed. There is a risk of fire.
Never refuel with petrol. Never add petrol to
diesel fuel.
! Do not use petrol to refuel vehicles with a
diesel engine. Do not use diesel to refuel
vehicles with a petrol engine. Do not switch on the ignition if you accidentally refuel
with the wrong fuel. Otherwise, the fuel will enter the fuel system. Even small amounts
of the wrong fuel could result in damage to the fuel system and the engine. The repair
costs are high. Notify a qualified specialist
workshop and have the fuel tank and fuel
lines drained completely.
! Overfilling the fuel tank could damage the
fuel system.
! Take care not to spill any fuel on painted
surfaces. You could otherwise damage the
paintwork.
! Use a filter when adding fuel from a fuel
can. The fuel lines and/or the diesel injec-
tion system could otherwise be blocked by
particles from the fuel can.
Do not get into the vehicle again during the
refuelling process. Otherwise, electrostatic
charge could build up again.
If you overfill the fuel tank, some fuel may
spray out when you remove the fuel pump
nozzle.
For further information on fuel and fuel quality (Y page 399). Refuelling
General notes Observe the important safety notes
(Y
page 177). The fuel filler flap is unlocked or locked auto-
matically when you open or close the vehicle
with the key or using KEYLESS-GO.
The position of the 8fuel filler cap is dis-
played in the instrument cluster. The arrow
next to the filling pump indicates the side of
the vehicle.
Opening the fuel filler flap Opening the fuel filler flap (example: CLS Coupé)
:
To open the fuel filler flap
; To insert the fuel filler cap
= Tyre pressure table
? Fuel type to be refuelled
X Switch off the engine.
X Remove the key from the ignition lock.
X KEYLESS-GO: open the driver's door.
This corresponds to key position 0: "key
removed".
The driver's door can be closed again.
X Press the fuel filler flap in the direction of
arrow :.
The fuel filler flap opens slightly.
X Open the fuel filler flap fully.
X Turn the fuel filler cap anti-clockwise and
remove it.
X Insert the fuel filler cap into the holder
bracket on the inside of fuel filler flap ;.
X CLS Coupé: insert the fuel filler cap into
the holder on the inside of fuel filler flap ;.
or
X CLS Shooting Brake: insert the fuel filler
cap, held in a horizontal position, into the 178
RefuellingDriving and parking

Display messages
Possible causes/consequences and
M
MSolutions C There is very little fuel in the fuel tank.
The auxiliary heating cannot be operated.
X Refuel at the nearest filling station without fail. ¸
Please Please
replace
replace air
air
filter
filter Vehicles with a diesel engine: the engine air filter is dirty and must
be replaced.
X Visit a qualified specialist workshop. !
Clean Clean
the
thefuel
fuel fil‐
fil‐
ter
ter Vehicles with a diesel engine: there is water in the fuel filter. The
water must be drained off.
X Visit a qualified specialist workshop. ¯
Refill AdBlue at Refill AdBlue at
workshop See Own‐ workshop See Own‐
er's Manual er's Manual The AdBlue
®
level has fallen below the reserve range. A warning
tone also sounds.
X Have AdBlue ®
refilled as soon as possible at a qualified spe-
cialist workshop. ¯
Refill AdBlue at Refill AdBlue at
workshop No start workshop No start
in .. km in .. km The AdBlue
®
level is only sufficient for the indicated distance. A
warning tone also sounds.
X Have AdBlue ®
refilled as soon as possible at a qualified spe-
cialist workshop. ¯
Refill AdBlue at Refill AdBlue at
workshop Eng. workshop Eng.
start not possible start not possible The AdBlue
®
tank is empty. A warning tone also sounds. You can
no longer start the engine.
X Consult a qualified specialist workshop immediately. ¯
Check AdBlue See Check AdBlue See
Owner's Manual Owner's Manual The AdBlue
®
system is malfunctioning. A warning tone also
sounds.
X Visit a qualified specialist workshop. ¯
Eng. Eng.
start
start not
notpos‐
pos‐
sible in .. km
sible in .. km The AdBlue
®
system is malfunctioning. A warning tone also
sounds.
X Visit a qualified specialist workshop immediately. ¯
Eng. Eng.
start
start not
notpos‐
pos‐
sible
sible The AdBlue
®
system is malfunctioning. A warning tone also
sounds. You can no longer start the engine.
X Consult a qualified specialist workshop immediately. Display
messages
273On-board computer and displays Z

Maintaining the time-dependent service
schedule:
X Note down the service due date displayed
in the multifunction display before discon-
necting the battery.
or X After reconnecting the battery, subtract
the battery disconnection periods from the service date shown on the display.
Hiding service messages X
Press the aor% button on the steer-
ing wheel.
Displaying service messages X
Switch the ignition on.
X Press the =or; button on the steer-
ing wheel to select the Service
Service menu.
X Press the 9or: button to select the
ASSYST PLUS
ASSYST PLUS submenu and confirm by
pressing the abutton.
The service due date appears in the multi-
function display.
Information about Service Resetting the ASSYST PLUS service inter-
val display
! If the ASSYST PLUS service interval dis-
play has been inadvertently reset, this set-
ting can be corrected at a qualified special-
ist workshop.
Have service work carried out as described in the Service Booklet. This may otherwise
lead to increased wear and damage to the
major assemblies or the vehicle.
A qualified specialist workshop, e.g. a
Mercedes-Benz Service Centre, will reset the ASSYST PLUS service interval display after
the service work has been carried out. You
can also obtain further information on main-
tenance work, for example. Special service requirements
The prescribed service interval is based on
normal operation of the vehicle. Service work
will need to be performed more often if the
vehicle is operated under arduous conditions or increased loads, for example:
R regular city driving with frequent intermedi-
ate stops
R if the vehicle is primarily used to travel
short distances
R for frequent operation in mountainous ter-
rain or on poor road surfaces
R if the engine is often left idling for long peri-
ods
In these or similar operating conditions, have,
for example, the air filter, engine oil and oil
filter changed more frequently. The tyres
must be checked more frequently if the vehi-
cle is operated under increased loads. Fur-
ther information can be obtained at a quali-
fied specialist workshop, e.g. a Mercedes-
Benz Service Centre.
Driving abroad
An extensive Mercedes-Benz Service network is also available in other countries. You can
obtain further information from any
Mercedes-Benz Service Centre. AdBlue
®
service indicator
i For BlueTEC vehicles only.
To function properly, BlueTEC exhaust gas
aftertreatment must be operated with the
reducing agent AdBlue ®
. AdBlue ®
is topped
up as part of the service. Under normal oper-
ating conditions, a full tank of AdBlue ®
should
last until the next service due date.
Depending on how and where the vehicle is
used, there may be an increase in the
AdBlue ®
consumption, resulting in the next
service due date being brought forward.
Certain display messages show that AdBlue ®
must be topped up, e.g.: Service
333Maintenance and care Z

Assuring the purity of AdBlue
®
is particularly
important with respect to avoiding malfunc-
tions in the BlueTEC exhaust gas aftertreat-
ment system.
If AdBlue ®
is pumped out of the AdBlue ®
tank,
e.g. during repair work, do not use this fluid to refill the tank. The purity of the fluid can no
longer be guaranteed.
Capacities Model Total capacity
All models
25.5 l
Engine oil
General notes When handling engine oil, observe the impor-
tant safety notes on service products
(Y page 399).
The quality of the engine oil is decisive for the function and service life of an engine. After
extensive tests, Mercedes-Benz approves
engine oils that correspond to the current
technical standard.
Therefore, only Mercedes-Benz approved
engine oils may be used in Mercedes-Benz
engines.
Further information on tested and approved
engine oils can be obtained from any
Mercedes-Benz Service Centre. Mercedes-
Benz recommends that you have the oil
change carried out at a qualified specialist
workshop. Mercedes-Benz approval is indica-
ted on the oil container by the inscription "MB Approval" and the corresponding designa-
tion, e.g. MB Approval 229.51.
You can call up an overview of approved
engine oils on the Internet at
http://bevo.mercedes-benz.co mby enter-
ing the designation, e.g. 229.5.
The table shows which engine oils have been
approved for your vehicle. Petrol engines:
in certain countries, differ-
ent engine oils can be used, provided that the
maintenance intervals are reduced. For more information, please contact a qualified spe-
cialist workshop. Petrol engines MB Approval
All models
229.5
Diesel engines with a
diesel particle filter MB Approval
All models
228.51,
229.31, 229.51 Use only SAE 0W-4
0or SAE 5W-40 engine oils
for AMG vehicles.
i If the engine oils listed in the table are not
available, you may add the following engine
oils until the next oil change:
R vehicles with a petrol engine: MB
Approval 229.1, 229.3 or ACEA A3
R vehicles with a diesel engine: MB
Approval 229.1, 229.3, 229.5 or
ACEA C3
This must only be added once and the
amount must not be greater than 1.0 l.
Ca pacities The following values refer to an oil change,
including the oil filter.
Model Replacement
amount CLS 350
CLS 250 CDI
6.5 l
AMG vehicles
8.5 l
All other models
8.0 l
Additives
!
Do not use any additives with the engine
oil. This could damage the engine. 404
Service products and capacitiesTechnical data