2017 MERCEDES-BENZ CLS window

R
Only use the "Windshield defrosting" function
briefly until the windshield is clear again. R
Only use air-recirculation mode briefly, e.g. if
there are unpleasant outside odors or when in
a tunnel. The windows could otherwise fog up,
since no fresh air is drawn into the vehicle in
air-recirculation mode. R
Use the ZONE function to adopt the temper-
ature settings on the driver's side for the
front-passenger side and the rear compart-
ment as well. The indicator lamp above the

Switch off the "Windshield defrosting" function
as soon as the windshield is clear again. X
Turn the SmartKey to position 2 in the ignition
lock ( Y
page 123).X
To activate: press the d button.
The indicator lamp in the d button lights
up.
The climate control system switches to the
following functions: R
high airflow R
high temperature R
air distribution to the windshield and front
side windows R
air-recirculation mode off
If the battery is not sufficiently charged, blower
output may be reduced. Once the battery is suf-
ficiently charged again, full blower output will be
available again. X
To deactivate: press the d button.
The indicator lamp in the d button goes
out. The previously selected settings are
restored. Air-recirculation mode remains
deactivated.
MAX COOL maximum cooling The MAX COOL function is only available in vehi-
cles for the USA.
MAX COOL is only operational when the engine
is running. X
To activate: press the

Problems with the rear window defroster Problem
Possible causes/consequences and P Solutions
The rear window
defroster has deactiva-
ted prematurely or can-
not 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.
Switching air-recirculation mode
on/off
General notes You can deactivate the flow of fresh air if
unpleasant odors are entering the vehicle from
outside. The air already inside the vehicle will
then be recirculated.
If you switch on air-recirculation mode, the win-
dows can fog up more quickly, in particular at
low temperatures. Only use air-recirculation
mode briefly to prevent the windows from fog-
ging up.
Activating/deactivating X
Turn the SmartKey to position 2 in the ignition
lock ( Y
page 123).X
To activate: press the r button.
The indicator lamp in the r button lights
up.
Dual-zone automatic climate control: air-recir-
culation mode is automatically activated at high
outside temperatures.
3-zone automatic climate control: air-recircula-
tion mode is automatically activated at high lev-
els of pollution or at high outside temperatures.
When air-recirculation mode is activated auto-
matically, the indicator lamp above the r
button does not light up. Outside air is added
after approximately 30 minutes. X
To deactivate: press the r button.
The indicator lamp in the r button goes
out. Air-recirculation mode deactivates automati-
cally: 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 dehumidifica-
tion" function is activated
Switching the residual heat on or off
General notes The residual heat function is only available with
3-zone automatic climate control.
It is possible to make use of the residual heat of
the engine to continue heating the vehicle for
approximately 30 minutes after the engine has
been switched off. The heating time depends on
the set interior temperature.
Activating/deactivating X
Turn the SmartKey to position 0 in the ignition
lock or remove it ( Y
page 123).X
To switch on: press the K button.
The indicator lamp in the K button lights
up.
If the residual heat function is activated, the
windows may fog up on the inside.
The blower will run at a low speed regardless of
the airflow setting.
If you activate the residual heat function at high
temperatures, only the ventilation will be acti-
vated. The blower runs at medium speed.120
Operating the climate control systems
Climate control

Drivin g on wet road s
Hydroplaning If water has accumulated to a certain dept h on
th e road surface, there is a danger of hydro-
planin g occurring, eve n if:R
you drive at low speeds .R
th e tires hav e adequat e tread depth.
Fo r this reason , in th e event of heav y rain or in
condition s in whic h hydroplaning may occur ,
you mus t drive in th e followin g manner:R
lowe r your speed.R
avoid ruts. R
avoid sudden steerin g movements .R
brake carefully.
Drivin g on flooded road s
! Do no t drive through floode d areas. Chec k
th e dept h of any water befor e drivin g through
it . Drive slowly through standin g water. Oth-
erwise , water may ente r th e vehicle interio r or
th e engin e compartment. Thi s can damage
th e electronic component s in th e engin e or
th e automatic transmission. Water can also
be drawn in by th e engine's air suction nozzles
and this can cause engin e damage.
Winte r drivin g
G WARNING
If you shift down on a slipper y road surfac e in
an attempt to increase th e engine's braking
effect , th e drive wheels could los e their grip.
There is an increase d danger of skidding and
accidents .
Do no t shift down fo r additional engin e brak-
in g on a slipper y road surface.
G DANGER
If th e exhaus t pipe is blocke d or adequat e
ventilation is no t possible, poisonous gases
suc h as carbon monoxide (CO) may ente r th e
vehicle. Thi s is th e case, e.g. if th e vehicle
becomes trappe d in snow. There is a ris k of
fatal injury. If you leav e th e engin e or th e auxiliar y heatin g
running , mak e sur e th e exhaus t pipe and are a
around th e vehicle are clear of snow. To
ensur e an adequat e supply of fresh air, ope n a
window on th e sid e of th e vehicle that is no t
facin g into th e wind.
Hav e your vehicle winter-proofed at a qualified
specialis t workshop at th e onset of winter.
Drive particularly carefully on slipper y road sur -
faces. Avoid sudden acceleration , steerin g and
braking maneuvers . Do no t use th e cruise con-
trol or DISTRONIC PLUS.
If th e vehicle threatens to skid or canno t be
stopped when movin g at low speed:X
Shift th e transmissio n to position N .
The outsid e temperature indicator is no t
designed to serve as an ice-warnin g devic e and
is therefore unsuitable fo r that purpose.
Changes in th e outsid e temperature are dis -
playe d after a short delay.
Indicated temperature s just abov e th e freezin g
poin t do no t guarantee that th e road surfac e is
free of ice. The road may still be icy, especially in
wooded areas or on bridges. The vehicle could
skid if you fail to adapt your drivin g style. Always
adapt your drivin g style and drive at a speed to
suit th e prevailin g w eather conditions.
You should pay special attention to road condi-
tion s when temperature s are around freezin g
point.
Fo r more information on drivin g wit h snow
chains, see ( Y
page 294).
Fo r more information on drivin g wit h summer
tires , see ( Y
page 294).
Observ e th e note s in th e "Winte r operation " sec -
tion ( Y
page 294).
Drivin g systems
Mercedes-Benz Intelligent Drive
Mercedes-Ben z Intelligen t Drive stand s fo r inno -
vative driver assistanc e and safet y systems
whic h enhance comfor t and suppor t th e driver in
critical situations. Wit h these intelligen t co-ordi -
nated systems Mercedes-Ben z has set a mile-
ston e on th e pat h toward s autonomous driving.
Mercedes-Ben z Intelligen t Drive embraces all
elements of active and passive safet y in on e wellDriving systems 14 7
Driving an d parking Z

Display messages
Possible causes/consequences and P Solutions
u Front Lef t Malfunc‐
tio n Servic e
Required or F ron t
Right Malfunction
Servic e Required The restrain t system has malfunctioned at th e fron t on th e lef t or right .
The u warning lamp also lights up in th e instrumen t cluster.
G WARNIN G
The air bags or Emergency Tensioning Devices may either be triggered
unintentionally or, in th e event of an accident, may no t be triggered .
There is an increased ris k of injury.X
Visit a qualified specialist workshop immediately.
u Rea r Lef t Malfunc‐
tio n Servic e
Required or R ear
Right Malfunction
Servic e Required The restrain t system has malfunctioned at th e rear on th e lef t or right .
The u warning lamp also lights up in th e instrumen t cluster.
G WARNIN G
The air bags or Emergency Tensioning Devices may either be triggered
unintentionally or, in th e event of an accident, may no t be triggered .
There is an increased ris k of injury.X
Visit a qualified specialist workshop immediately.
u Lef t Sid e Curtai n
Airbag Malfunction
Servic e
Required or R igh t
Sid e Curtai n Airbag
Malfunction Servic e
Required The left-han d or right-hand window curtai n air bag is malfunctioning .
The u warning lamp also lights up in th e instrumen t cluster.
G WARNIN G
The lef t or right window curtai n air bag may either be triggered unin-
tentionally or, in th e event of an accident, may no t be triggered .
There is an increased ris k of injury.X
Visit a qualified specialist workshop immediately. Display messages 20 9
On-board computer and displays Z

Points of Interest (POIs)/important destinations
in the vicinity.
Furthermore, you can download routes with up
to four way points.
You are prompted to confirm route guidance to
the address entered. X
Select Yes by turning 3 or sliding 1
the controller and confirm with 7 .
The system calculates the route and subse-
quently starts the route guidance with the
address entered.
If you select No
the address can be stored in
the address book.
The destination download function is available
if: R
the vehicle is equipped with a navigation sys-
tem. R
the relevant mobile phone network is availa-
ble and data transfer is possible.
Route Assistance This service is part of the mbrace PLUS Package
and cannot be purchased separately.
You can use the route assistance function even
if the vehicle is not equipped with a navigation
system.
Within the framework of this service, you receive
a professional and reliable form of navigation
support without having to leave your vehicle.
The customer service representative finds a
suitable route depending on your vehicle's cur-
rent position and the desired destination. You
will then be guided live through the current route
section.
Search & Send
General notes
To use "Search & Send", your vehicle must be
equipped with mbrace and a navigation system.
Additionally, an mbrace service subscription
must be completed.
"Search & Send" is a destination entry service. A
destination address which is found on Google
Maps ®
can be transferred via mbrace directly to
your vehicle's navigation system. Specifying and sending the destination
address X
Go to the website http://maps.google.com
and enter a destination address into the entry
field. X
To send the destination address to the e-
mail address of your mbrace account:
click on the corresponding button on the web-
site.
Example:
If you select 'Send to vehicle' and then
'Mercedes-Benz', the destination address will
be sent to your vehicle. X
When the "Send" dialog window appears:
Enter the e-mail address you specified when
setting up your mbrace account into the cor-
responding field. X
Click "Send".
Information on specific commands such as
"Address entry" or "Send" can be found on the
website.
Calling up a transmitted destination
address X
Turn the SmartKey to position 2 in the ignition
lock ( Y
page 123).
The transmitted destination address is loaded
into the vehicle's navigation system.
A display message appears, asking whether
navigation should be started. X
Select Yes by turning 3 or sliding 1
the controller and confirm with 7 .
The system calculates the route and subse-
quently starts the route guidance with the
address entered.
If you select No the address can be stored in
the address book.
If you have sent more than one destination
address, each individual destination must be
confirmed separately.
Destination addresses are loaded in the same
order as the order in which they were sent.
If you own multiple Mercedes-Benz vehicles with
mbrace and activated mbrace accounts:
If multiple vehicles are registered under the
same e-mail address, the destination will be
sent to all the vehicles.258
Features
Stowage and features

After the vehicle has been washed, brake
carefully while paying attention to the traffic
conditions until full braking power is restored.
! When DISTRONIC PLUS or the HOLD func-
tion is activated, the vehicle brakes automat-
ically in certain situations.
To avoid damage to the vehicle, deactivate
DISTRONIC PLUS and the HOLD function in
the following or similar situations: R
when towing the vehicle R
in the car wash
! Never clean your vehicle in a Touchless
Automatic Car Wash as these use special
cleaning agents. These cleaning agents can
damage the paintwork or plastic parts.
! Make sure that: R
the side windows and the sliding sunroof
are fully closed. R
the ventilation/heating is switched off (the
OFF button has been pressed). R
the windshield wiper switch is at position 0 .R
the 360° camera or rear view camera is
switched off.
The vehicle may otherwise be damaged.
! In car washes with a towing mechanism,
make sure that the automatic transmission is
in transmission position N , otherwise the
vehicle could be damaged. R
Vehicles with a SmartKey:
Do not remove the SmartKey from the igni-
tion lock. Do not open the driver's door or
front-passenger door whe n the engine is
swi tched off. Otherwise, the automatic
transmission selects park position P auto-
matically and locks the wheels. You can
prevent this by shifting the automatic trans-
mission to N beforehand.R
Vehicles with KEYLESS-GO:
Do not open the driver's door or front-
passenger door when the engine is
switched off. Otherwise, the automatic
transmission selects park position P auto-
matically and locks the wheels.
Observe the following to make sure that the
automatic transmission stays in position N : X
Make sure the vehicle is stationary and the
ignition is switched off. X
Turn the SmartKey to position 2 in the ignition
lock ( Y
page 123).
Use the SmartKey instead of the Start/Stop
button on vehicles with KEYLESS-GO. X
Depress and hold the brake pedal. X
Shift the automatic transmission to position
N . X
Release the brake pedal. X
Release the electric parking brake. X
Switch off the ignition and leave the SmartKey
in the ignition lock.
You can wash the vehicle in an automatic car
wash from the very start.
If the vehicle is very dirty, pre-wash it before
cleaning it in an automatic car wash.
After using an automatic car wash, wipe off wax
from the windshield and the wipe r b lades. This
w ill prevent smears and reduce wiping noises
caused by residue on the windshield.
Washing by hand In some countries, washing by hand is only
allowed at specially equipped washing bays.
Observe the legal requirements in each country. X
Do not use hot water and do not wash the
vehicle in direct sunlight. X
Use a soft sponge to clean. X
Use a mild cleaning agent, such as a car
shampoo approved by Mercedes-Benz. X
Thoroughly hose down the vehicle with a gen-
tle jet of water. X
Do not point the water jet directly towards the
air inlet. X
Use plenty of water and rinse out the sponge
frequently. X
Rinse the vehicle with clean water and dry
thoroughly with a chamois. X
Do not let the cleaning agent dry on the paint-
work.
Carefully remove all deposits of road salt as
soon as possible when driving in winter.
Power washers
G WARNING
The water jet from a circular jet nozzle (dirt
blasters) can cause invisible exterior damage Care 271
Maintenance and care Z

Use only insect remover and car shampoo from
the range of recommended and approved
Mercedes-Benz care products.
Cleaning the vehicle parts
Cleaning the wheels
G WARNING
The water jet from a circular jet nozzle (dirt
blasters) can cause invisible exterior damage
to the tires or chassis components. Compo-
nents damaged in this way may fail unexpect-
edly. There is a risk of an accident.
Do not use power washers with circular jet
nozzles to clean the vehicle. Have damaged
tires or chassis components replaced imme-
diately.
! Do not use acidic wheel cleaning products
to remove brake dust. This could damage
wheel bolts and brake components.
! Do not park your vehicle for a long period of
time directly after cleaning, particularly after
cleaning the wheel rim with wheel cleaner.
Wheel cleaner can lead to the increased cor-
rosion of the brake discs and pads. Therefore,
drive for a few minutes after cleaning. By
heating up the brakes, the brake discs and
pads dry. The vehicle can then be parked for a
long period of time.
Cleaning the windows
G WARNING
You could become trapped by the windshield
wipers if they start moving while cleaning the
windshield or wiper blades. There is a risk of
injury.
Always switch off the windshield wipers and
the ignition before cleaning the windshield or
wiper blades.
! Do not use dry cloths, abrasive products,
solvents or cleaning agents containing sol-
vents to clean the inside of the windows. Do
not touch the insides of the windows with
hard objects, e.g. an ice scraper or ring. There
is otherwise a risk of damaging the windows. ! Clean the water drainage channels of the
windshield and the rear window at regular
intervals. Deposits such as leaves, petals and
pollen may under certain circumstances pre-
vent water from draining away. This can lead
to corrosion damage and damage to elec-
tronic components. X
Clean the inside and outside of the windows
with a damp cloth and a cleaning product that
is recommended and approved by Mercedes-
Benz.
Cleaning wiper blades
G WARNING
You could become trapped by the windshield
wipers if they start moving while cleaning the
windshield or wiper blades. There is a risk of
injury.
Always switch off the windshield wipers and
the ignition before cleaning the windshield or
wiper blades.
! Do not pull the wiper blade. Otherwise, the
wiper blade could be damaged.
! Do not clean wiper blades too often and do
not rub them too hard. Otherwise, the graph-
ite coating could be damaged. This could
cause wiper noise.
! Hold the wiper arm securely when folding
back. The windshield could be damaged if the
wiper arm smacks against it suddenly. X
Fold the windshield wiper arms away from the
windshield. X
Carefully clean the wiper blades with a damp
cloth. X
Fold the windshield wiper arms back again
before switching on the ignition.
Cleaning the exterior lighting
! Only use cleaning agents or cleaning cloths
which are suitable for plastic light lenses.
Unsuitable cleaning agents or cleaning cloths
could scratch or damage the plastic light len-
ses. X
Clean the plastic lenses of the exterior light-
ing using a wet sponge and a mild cleaning
agent, e.g. Mercedes-Benz car shampoo or
cleaning cloths. Care 273
Maintenance and care Z