2017 MERCEDES-BENZ CLS warning

Geo fencing Geo fencing allows you to select areas which the
vehicle should not enter or leave. You will be
informed if the vehicle crosses the boundaries
of the selected areas. You can select the way in
which you receive this information beforehand.
Possible options include text message, e-mail or
an automated call.
The area can be determined as either a circle or
a polygon with a maximum of ten corners. You
can specify up to ten areas simultaneously. Dif-
ferent settings are possible for each area.
These settings can be called up under "Owners
Online" at http://www.mbusa.com.
Alternatively, you can trigger an MB Info call and
inform the customer service representative that
you wish to activate geo fencing.
Currently inactive areas can be activated by text
message.
Triggering the vehicle alarm With this function, you can trigger the vehicle's
panic alarm via text message. An alarm sounds
and the exterior lighting flashes. Depending on
the setting, the panic alarm lasts five or ten sec-
onds. Afterwards, the alarm switches off.
Garage door opener
General notes The HomeLink ®
garage door opener integrated
in the rear-view mirror allows you to operate up
to three different door and gate systems.
Use the integrated garage door opener only on
garage doors that: R
have safety stop and reverse features and R
meet current U.S. federal safety standards
Once programed, the integrated garage door
opener in the rear-view mirror will assume the
function of the garage door system's remote
control. Please also read the operating instruc-
tions for the garage door system.
When programming a garage door opener, park
the vehicle outside the garage. Do not run the
engine while programming.
Certain garage door drives are incompatible
with the integrated garage door opener. If you
have difficulty programing the integrated garage door opener, contact an authorized Mercedes-
Benz Center.
Alternatively, you can call the following tele-
phone assistance services: R
USA: Mercedes-Benz Customer Assistance
Center at 1-800-FOR-MERCedes R
Canada: Customer Service at
1-800-387-0100 R
HomeLink ®
hotline 1-800-355-3515 (free of
charge)
More information on HomeLink ®
and/or com-
patible products is also available online at
http://www.homelink.com.
Notes on the declaration of conformity
( Y
page 28).
USA: FCC ID: CB2HMIHL4
Canada: IC: 279B-HMIHL4
Important safety notes
G WARNING
When you operate or program the garage door
with the integrated garage door opener, per-
sons in the range of movement of the garage
door can become trapped or struck by the
garage door. There is a risk of injury.
When using the integrated garage door
opener, always make sure that nobody is
within the range of movement of the garage
door.
G WARNING
Combustion engines emit poisonous exhaust
gases such as carbon monoxide. Inhaling
these exhaust gases leads to poisoning. There
is a risk of fatal injury. Therefore never leave
the engine running in enclosed spaces with-
out sufficient ventilation.
Programming
Programming buttons
Pay attention to the "Important safety notes"
( Y
page 261). Features 261
Stowage and features Z

Engine compartment
Hood
Important safety notes
G WARNING
If the hood is unlatched, it may open up when
the vehicle is in motion and block your view.
There is a risk of an accident.
Never unlatch the hood while driving. Before
every trip, ensure that the hood is locked.
G WARNING
When opening and closing the hood, it may
suddenly fall into the closed position. There is
a risk of injury to persons within range of
movement of the hood.
Open and close the hood only when no one is
within its range of movement.
G WARNING
Opening the hood when the engine is over-
heated or when there is a fire in the engine
compartment could expose you to hot gases
or other service products. There is a risk of
injury.
Let an overheated engine cool down before
opening the hood. If there is a fire in the
engine compartment, keep the hood closed
and contact the fire department.
G WARNING
The engine compartment contains moving
components. Certain components, such as
the radiator fan, may continue to run or start
again suddenly when the ignition is off. There
is a risk of injury.
If you need to do any work inside the engine
compartment: R
switch off the ignition R
never reach into the area where there is a
risk of danger from moving components,
such as the fan rotation area R
remove jewelry and watches R
keep items of clothing and hair, for exam-
ple, away from moving parts
G WARNING
The ignition system and the fuel injection sys-
tem work under high voltage. If you touch
components which are under voltage, you
could get an electric shock. There is a risk of
injury.
Never touch components of the ignition sys-
tem or fuel injection system when the ignition
is switched on.
Opening the hood
G WARNING
Certain components in the engine compart-
ment, such as the engine, radiator and parts
of the exhaust system, can become very hot.
Working in the engine compartment poses a
risk of injury.
Where possible, let the engine cool down and
touch only the components described in the
following.
G WARNING
When the hood is open and the windshield
wipers are set in motion, you can be injured by
the wiper linkage. There is a risk of injury.
Always switch off the windshield wipers and
the ignition before opening the hood.
! Make sure that the windshield wipers are
not folded away from the windshield. You
could otherwise damage the windshield wip-
ers or the hood.Engine compartment 265
Maintenance and care Z

X
Make sure that the windshield wipers are
turned off. X
Pull release lever C on the hood.
The hood is released.
X
Reach into the gap, pull hood catch handle D
up and lift the hood.
If you lift the hood by approximately 15 in
(40 cm), the hood is opened and held open
automatically by the gas-filled strut.
Closing the hood X
Lower the hood and let it fall from a height of
approximately 8 in (20 cm). X
Check that the hood has engaged properly.
If the hood can be raised slightly, it is not
properly engaged. Open it again and close it
with a little more force.
Radiator
Do not cover up the radiator, such as with a
thermal mat or insect protection cover. The
readings of the on-board-diagnostic system may
otherwise be inaccurate. Some of these read-
ings are required by law and must be accurate at
all times. Engine oil
Important safety notes
G WARNING
Certain components in the engine compart-
ment, such as the engine, radiator and parts
of the exhaust system, can become very hot.
Working in the engine compartment poses a
risk of injury.
Where possible, let the engine cool down and
touch only the components described in the
following.
G WARNING
The engine compartment contains moving
components. Certain components, such as
the radiator fan, may continue to run or start
again suddenly when the ignition is off. There
is a risk of injury.
If you need to do any work inside the engine
compartment: R
switch off the ignition R
never reach into the area where there is a
risk of danger from moving components,
such as the fan rotation area R
remove jewelry and watches R
keep items of clothing and hair, for exam-
ple, away from moving parts
G WARNING
If engine oil comes into contact with hot com-
ponents in the engine compartment, it may
ignite. There is a risk of fire and injury.
Make sure that engine oil is not spilled next to
the filler neck. Let the engine cool down and
thoroughly clean the engine oil off the com-
ponents before starting the engine.
G WARNING
Opening the hood when the engine is over-
heated or when there is a fire in the engine
compartment could expose you to hot gases
or other service products. There is a risk of
injury.266
Engine compartment
Maintenance and care

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

Displaying service messages X
Switc h on th e ignition .X
Press th e Y or e butto n on th e steerin g
whee l to selec t th e Serv. menu.X
Press th e c or d butto n to selec t th e
ASSYST PLU S submen u and confirm by press-
in g th e v button.
The servic e due dat e appears in th e multi-
function display.
Information about Service Resetting th e ASSYS T PLUS service inter -
va l display
! If th e ASSYST PLU S servic e interval display
has bee n inadvertentl y reset , this setting can
be correcte d at a qualified specialis t work-
shop.
Hav e servic e wor k carrie d out as described in
th e Maintenance Booklet . Thi s may otherwise
lead to increase d wear and damage to th e
major assemblies or th e vehicle.
A qualified specialis t workshop , e.g. an author -
ized Mercedes-Ben z Center, will reset th e
ASSYST PLU S servic e interval display after th e
servic e wor k has bee n carrie d out . You can also
obtain further information on maintenance
work, fo r example.
Specia l service requirement sThe specifie d maintenance interval take s only
th e normal operation of th e vehicle into
account. Under arduous operatin g condition s or
increase d load on th e vehicle, maintenance
wor k mus t be carrie d out more frequently, fo r
example: R
regular city drivin g wit h frequent intermediate
stops R
if th e vehicle is primarily used to trave l short
distances R
use in mountainous terrain or on poo r road
surfaces R
if th e engin e is ofte n lef t idling fo r lon g periods
Under these o r similar conditions, have, fo r
e xample, th e air filter, engin e oil and oil filte r
replaced or changed more frequently. Under
arduous operatin g conditions, th e tires mus t be
checke d more often. Further information can be
obtained at a qualified specialis t workshop , e.g.
an authorized Mercedes-Ben z Center. Drivin g abroadAn extensive Mercedes-Ben z Servic e networ k is
also available in other countries. You can obtain
further information from any authorized
Mercedes-Ben z Center.
Car e
General notes
H Environmental not e
Dispose of empty packagin g and cleanin g
cloths in an environmentally responsible man -
ner.
! Fo r cleanin g your vehicle, do no t use any of
th e following: R
dry, rough or har d clothsR
abrasiv e cleanin g agentsR
solvents R
cleanin g agents containin g solvents
Do no t scrub .
Do no t touch th e surfaces or protective films
wit h har d objects , e.g. a rin g or ic e scraper.
You could otherwise scratch or damage th e
surfaces and protective film.
! Do no t par k your vehicle fo r a lon g period of
time directl y after cleaning, particularly after
cleanin g th e whee l rim wit h whee l cleaner.
Wheel cleaner can lead to th e increase d cor-
rosio n of th e brake discs and pads . Therefore,
drive fo r a fe w minutes after cleaning. By
heatin g up th e brakes, th e brake discs and
pads dry. The vehicle can then be parke d fo r a
lon g period of time.
Regular car e of your vehicle is a condition fo r
retainin g th e qualit y in th e lon g term .
Use car e products and cleanin g agents recom -
mended and approved by Mercedes-Benz.
Washing th e vehicle an d cleaning th e
paintwor k
Automatic car was h
G WARNING
Brakin g efficiency is reduce d after washin g
th e vehicle. There is a ris k of an accident.270
Care
Maintenance and care

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

Cleaning the mirror turn signals
! Only use cleaning agents or cleaning cloths
that are suitable for plastic lenses. Unsuitable
cleaning agents or cleaning cloths could
scratch or damage the plastic lenses of the
mirror turn signals. X
Clean the plastic lenses of the mirror turn sig-
nals in the exterior mirror housing using a wet
sponge and mild cleaning agent, e.g.
Mercedes-Benz car shampoo or cleaning
cloths.
Cleaning the sensors
! If you clean the sensors with a power
washer, make sure that you keep a distance
of at least 11.8 in (30 cm ) betwee n the vehicl e
and the power washer nozzle. Information
about the correct distance is available from
the equipment manufacturer.
X
Clean sensors C of the driving systems with
water, car shampoo and a soft cloth.
Cleaning the rear view camera and 360°
camera
! Do not clean the camera lens and the area
around the rear view camera or 360° camera
with a power washer. X
Use clean water and a soft cloth to clean
camera lens C .
Cleaning the exhaust pipes
G WARNING
The exhaust tail pipe and tail pipe trim can
become very hot. If you come into contact
with these parts of the vehicle, you could burn
yourself. There is a risk of injury.
Always be particularly careful around the
exhaust tail pipe and the tail pipe trim. Allow
these components to cool down before touch-
ing them.
! Do not clean the exhaust pipe with acid-
based cleaning agents, such as bathroom
cleaner or wheel cleaner.
Impurities combined with the effects of road grit
and corrosive environmental factors may cause
flash rust to form on the surface. You can
restore the original shine of the exhaust pipe by
cleaning it regularly, especially in winter and
after washing. X
Clean the exhaust pipe with a care product
tested and approved by Mercedes-Benz.
Interior care
Cleaning the display
! For cleaning, do not use any of the following: R
alcohol-based thinner or gasoline R
abrasive cleaning agents R
commercially-available household cleaning
agents274
Care
Maintenance and care