2014 MERCEDES-BENZ CLS-Class climate control

MAX COOL is only operational when the
engine is running.
X
To activate: press the0019button.
The indicator lamp in the button lights up.
X To activate: press off-road button 0019
again.
The indicator lamp goes out. The previously
selected settings are restored.
When you activate MAX COOL, climate
control switches to the following functions:
R maximum cooling
R maximum airflow
R air-recirculation mode on Defrosting the windows
Windows fogged up on the inside X
Activate the 000Ccooling with air
dehumidification function.
X Activate automatic mode 000D.
X Adjust the side air ventssot hat the warmed
air is directed to the side windows.
X If the windows continue to fog up, activate
the "windshieldd efrosting" function
(Y page 139).
i You should only select this settingu ntil
the windshield is clear again.
Windows fogged up on the outside X
Press the 000Fbutton repeatedly until the
000E or001A symbol appears in the
display.
X Adjust the side air ventssot hat no air is
directed to the side windows. Rear window defroster
Activating/deactivating The rear window defroster has
ahigh current
draw. You should therefor eswitch it off as
soon as the rear window is clear. Otherwise, the rear window defroster switches off
automatically after several minutes.
If the battery voltage is too low, the rear
window defroster may switch off.
X
Turn the SmartKey to position 2in the
ignition lock (Y page 147).
X Press the 0005button.
The indicator lamp in the 0005button lights
up or goes out. 140
Operating the climate control systemsClimate control

Problems with the rear window defroster
Problem Possible causes/consequences and
000B Solutions
The rear window
defroster has
deactivated
prematurely or cannot
be activated. The battery has not been sufficiently charged.
X
Switch off any consumers that are not required, e.g. reading
lamps, interior lighting or the seat heating.
When the battery is sufficiently charged, the rear window
defroster can be activated again. Activating/deactivating air-
recirculation mode
Points to observe before use You can deactivate the flow of fresh air if
unpleasant odors are enteringt he vehicle
from outside. The air already inside the
vehicle will then be recirculated.
If you switch on air-recirculation mode, the
windows can fog up more quickly, in
particular at low temperatures. Only use air-
recirculation mode briefly to prevent the
windows from fogging up.
The operation of air-recirculation mode is the
same for all control panels.
Activating/deactivating X
Turn the SmartKey to position 2in the
ignition lock (Y page 147).
X To activate: press the0008button.
The indicator lamp in the 0008button lights
up.
i Dual-zone automatic climate control: air-
recirculation mode is automatically
activated at high outside temperatures.
3-zone automatic climate control: air-
recirculation mode is automatically
activated at high levels of pollution or at
high outside temperatures.
When air-recirculation mode is activated
automatically ,the indicator lamp above the 0008
button does not light up. Outside air
is added after about 30 minutes.
X To deactivate: press the0008button.
The indicator lamp in the 0008button goes
out.
i Air-recirculation mode deactivates
automatically:
R after approximately five minutes at
outside temperatures below
approximately 41 ‡(5†)
R after approximately five minutes if
cooling with air dehumidification is
deactivated
R after approximately 30 minutes at
outside temperatures above
approximately 41 ‡(5 †)if the "Cooling
with air dehumidification" function is
activated Activating/deactivating th
eresidual
heat function
The residual heat function is only available in
vehicles for Canada with 3-zon eautomatic
climate control.
It is possible to mak euse of the residual heat
of the engine to continue heatin gthe vehicle
for approximately 30 minutes after the engine
has been switched off .The heating time
depends on the temperature that has been
set. Operating the climate control systems
141Climatecontrol

X
Turn the SmartKey to position 0in the
ignition lock or remove it (Y page 147).
X To activate: press the0018button.
The indicator lamp in the 0018button lights
up.
i If the residual heat function is activated,
the windows may fog up on the inside.
i The blower will run at alow speed
regardless of the airflow setting.
i If you activat ethe residual heat function
at high temperatures, only the ventilation
will be activated. The blower runs at
medium speed.
X To deactivate: press the0018button.
The indicator lamp in the 0018button goes
out.
Residua lheat is deactivated automatically:
R after approximately 30 minutes
R when the ignition is switched on
R if the battery voltage drops Setting the air vents
Important safety notes
G
WARNING
Very hot or very cold air can flow from the air
vents. This could result in burns or frostbite in
the immediate vicinit yofthe air vents. There
is ar isk of injury.
Make sure that all vehicle occupant salways
maintain asufficient distanc etothe air
outlets. If necessary, redirect the airflow to
another area of the vehicle interior.
In order to ensure the direct flow of fresh air
through the air ventsi nto the vehicle interior,
please observe the following notes:
R keep the air inlet between the windshield
and the hood free of blockages, such as ice,
snow or leaves.
R never cover the air ventsora ir intakegrilles
in the vehicle interior. Setting the center air vents
001A
Center air vent,l eft
0010 Center air vent,r ight
0024 Center vent thumbwheel, right
0021 Center vent thumbwheel, left
X To open/close: turn thumbwheels 0024
and 0021up or down. Setting the side air vents
001A
Defroster vent
0010 Side air vent
0024 Control for side air vent
X To open/close: turn thumbwheel 0024up or
down. Setting the glove box air vent
! Close the air vent when heating the
vehicle.
At high outside temperatures, open the air
vent and activat ethe "cooling with air 142
Setting the air ventsClimate control

dehumidification" function
.Otherwise,
temperature-sensitive items stored in the
glove bo xcould be damaged. 001A
Air vent thumbwheel
0010 Air vent
When automatic climate control is activated,
the glove box can be ventilated, for instance
to cool its contents.T he level of airflow
depends on the airflow and air distribution
settings.
X To open/close: turn thumbwheel 001A
clockwise or counter-clockwise. Setting the rear-compartment air
vents
Setting the center vents in the rear
compartment 001A
Rear-compartment air vent thumbwheel
0010 Rear-compartment air vent,r ight0024
Rear control panel, only for Canada with
3-zone automatic climate control
0021 Rear-compartment air vent,l eft
X To open/close: turn thumbwheel 001Aup or
down. Setting the air vents
143Climatecontrol Z

Calibratin
gthe compass X
Mak esure that there is sufficient spac efor
you to driv einacircle without impeding
traffic.
In order to calibrat ethe compas scorrectly,
do th efollowing:
R calibrat ethe compas sintheopen and not
in th evicinity of steel structures or high-
voltage transmission lines.
R switch off electrical consumer ssuchast he
climate control, windshield wiper sorrear
window defroster.
R close all door sand th etrunk lid.
X Switch on th eignition.
X Press and hold button 0024(Ypage 302) for
approximately six seconds until the
C symbol appear
sincompas sdisplay 0010
(Y page 302).
X Drive in afull circle at approximately
3m ph (5 km/h )to6mph (10 km/h).
When th ecalibration has successfully been
completed, th ecurren tdirection is shown
in compass display 0010(Ypage 302). Floormats
G
WARNING
Object sinthe driver's footwell can restric tthe
pedal travel or obstruct adepressed pedal.
The operatin gand road safety of the vehicle
is jeopardized. There is arisk of an accident.
Make sure that all objects in the vehicle are
stowed correctly, and that they cannot enter
the driver's footwell. Install the floormats
securely and as specified in order to ensure
sufficien tclearanc efor the pedals. Do not use
loose floormats. X
Slide the seat backwards.
X To install: place the floormat in the
footwell.
X Press studs 001Aontoretainers 0010.
X To remove: pull the floormat off
retainers 0010.
X Remove the floormat. Features
303Stowage and features Z

Example:
R
Treadwea rgrade: 200
R Tractio ngrade: AA
R Temperature grade: A
All passenge rcar tires must conform to the
statutory safety requirements in additio nto
these grades.
i Thea ctual values for tires ar evehicle-
specifi cand ma ydeviate from the values in
the illustration.
Treadwear The treadwea
rgrade is acomparative rating
based on the wearr ate of thetirew hen tested
unde rcontrolled conditions on aspecified
U.S. government course. For example, atire
graded 150 would wear one and one-half
times as well on the government course as a
tire graded 100.
The relative performanc eoftires depends
upon the actual conditions of their use,
however, and may depart significantly from
the norm, due to variations in driving habits,
service practices and differences in road
characteristics and climate conditions.
Traction G
WARNING
The traction grade assigned to this tire is
based on straight-ahead braking traction
tests, and does not include acceleration,
cornering, hydroplaning, or peak traction
characteristics.
! Avoid wheelspin. This can lead to damage
to the drive train.
The traction grades, from highest to lowest,
are AA, A, B, and C. Those grades represent
the tire's ability to stop on awet surface as
measured under controlled conditions on
specified government test surfaces of asphalt
and concrete. Atire marked Cmay have poor
traction performance. The safe speed on
awet, sno wcovered or icy
road is always lower than on dry road
surfaces.
You should pay special attention to road
conditions when temperatures are around
freezin gpoint.
Mercedes-Ben zrecommends aminimum
tread dept hof001Fin(4 mm )ona ll four winter
tires. Observe the legally required minimum
tire tread depth (Y page335). Winter tires can
reduce the braking distance on snow-covered
surfaces in comparison with summer tires.
The braking distance is still much further than
on surfaces that are not icy or covered with
snow. Take appropriate care when driving.
Further informatio nonwinter tires (M+S
tires) (Y page336).
Temperature G
WARNING
The temperature grade for this tire is
established for atire that is properly inflated
and not overloaded. Excessive speed,
underinflation, or excessive loading, either
separately or in combination, can cause
excessive heat build-up and possible tire
failure.
The temperature grades are A(the highest),
B, and C. Thes erepresent the tire's
resistanc etothe generatio nofheat and its
ability to dissipate heat when tested under
controlled conditions on aspecified indoor
laboratory test wheel. Sustained high
temperature can cause the material of the tire
to degenerat eand reduce tire life, and
excessive temperature can lead to sudden
tire failure. The grade Ccorresponds to alevel
of performanc ewhich all passenger car tires
must meet under the Federal Motor Vehicle
Safety Standard No. 109. Grades Band A
represent higher levels of performanc eonthe
laboratory test wheel than the minimum
required by law. 350
All about wheelsa
nd tiresWheels and tires

Example: vehicl
eide ntification plate (Canada only)
0010 VIN
0024 Paint code
i The data shown on the vehicle
identificatio nplate is used only as an
example. This data is differen tfor every
vehicle and can deviate from the data
shown here. You can find the data
applicabl etoyour vehicle on the vehicle
identification plate. VIN
X
Slide the right-hand front seat to its
rearmost position.
X Fold floor covering 001Aupwards.
You will see VIN 0010.
The VIN can also be found in the following
locations:
R on the lower edge of the windshield
(Y page 373)
R on the vehicle identification plate
(Y page 372) Engine number
001A
Emission control information plate,
including the certification of both federal
and Californian emissions standards
0010 Engine number (stamped into the
crankcase)
0024 VIN (on the lower edge of the windshield) Service products and filling
capacities
Important safety notes
G
WARNING
Servic eproducts may be poisonous and
hazardous to health. There is arisk of injury.
Comply with instructions on the use, storage
and disposal of service products on the labels
of the respective original containers. Always
store service products sealed in their original
containers. Always keep service products out
of the reach of children. H
Environmental note
Dispose of service products in an
environmentally responsible manner.
Servic eproducts include the following:
R Fuels
R Lubricants (e.g. engine oil, transmission oil)
R Coolant
R Brake fluid
R Windshield washer fluid
R Climate control system refrigerant Service products and filling capacities
373Technical data Z

Windshield washe
rsyste mand
headlamp cleaning system
Important safety notes G
WARNING
Windshiel dwasher concentrate is highly
flammable. If it comes into contact with hot
engine components or the exhaust syste mit
could ignite. There is ariskoff ire and injury.
Make sure that no windshield washer
concentrate is spilled nex ttothe filler neck.
! Only use washer fluid that is suitable for
plastic lamp lenses, e.g. MB SummerFit or
MB WinterFit. Unsuitable washer fluid
could damage the plastic lenses of the
headlamps.
! Do not add distilled or de-ionized water to
the washer fluid container. Otherwise, the
level sensor may be damaged.
! Only MB SummerFit and MB WinterFit
washer fluid should be mixed together. The
spray nozzles may otherwise become
blocked.
Comply with the importan tsafet ynotes for
servic eproduct swhen handlin gwasher fluid
(Y page 373).
At temperatures abov efreezing:
X Fill th ewashe rfluid reservoir with amixture
of water and windshield washer fluid, e.g.
MB SummerFit.
Add 1part MB SummerFit to 100 part swater. At temperatures below freezing:
X
Fill th ewashe rfluid reservoir with amixture
of water and washer fluid, e.g. MB
WinterFit.
Adapt the mixing ratio to the outside
temperature.
R Down to 14 ‡(002210 †): mix 1part MB
WinterFit to 2partsw ater.
R Down to 00224‡(002220 †): mix 1part MB
WinterFit to 1part water.
R Down to 002220.2‡(002229 †): mix 2partsMB
WinterFit to 1part water.
i Add windshield washer fluid, e.g. MB
SummerFit or MB WinterFit, to the washer
fluid all year round. Climate control system refrigerant
Important safety notes Typ
eofr efrigerant
The climate control system of your vehicle is
The instruction label regarding the refrigerant
type used can be foun donthe radiator cross
member.
Refrigerant R-134a !
Only the refrigeran tR-134a and the PAG
oil approved by Mercedes-Ben zmay be
used. The approved PA Goil may no tbe
mixed with any other PAG oil that is not
approved for R-134a refrigerant.
Otherwise, the climate control system may
be damaged.
Service work, such as topping-u prefrigerant
or replacing components, may only be carried
out by aqualified specialist workshop .All
applicable regulations must be adhered to,
SA Es tandard J639 included.
Always have work on the climate control
system carried out at aqualified specialist
workshop. 378
Service products and filling capacitiesTechnica
ldata
filled with refrigerant sR-134a.