2010 MERCEDES-BENZ CLS COUPE maintenance

X
If necessary, top up with coolant that has
been tested and approved by Mercedes-
Benz.
X Replace cap :and turn it clockwise as far
as it will go.
For further information on coolant, see
(Y page 322).
Windscreen washer system and head-
lamp cleaning system The washer fluid reservoir is used for both the
windscree nwasher system and the headlamp
cleaning system.
i Vehicle components and their service
products must match .Mercedes-Benz rec-
ommends that you use products that have
been tested and approved by Mercedes-
Benz. These are listed under the relevant
section in this Mercedes-Benz Owner's
Manual.
You can recognise service products
approved by Mercedes-Benz by the follow-
ing inscription on the containers:
R MB-Freigabe (e.g. MB-Freigabe 229.51)
R MB Approval (e.g. MB Approval 229.51)
Other designations or recommendations
that relate to a level of quality or a specifi-
cation in accordance with an MB Sheet
number (such as MB 229.5) have not nec-
essarily been approved by Mercedes-Benz.
You can obtain further information from
any Mercedes-Benz Service Centre. G
Risk of fire
Windscreen washer fluid is highly flammable.
Fire, naked flames and smoking are prohibi-
ted when handling washer fluid concentrate.
! Only use washer fluid concentrate which
is suitable for plastic lamp lenses. Unsuit-
able washer fluid concentrat ecould dam-
age the plastic lamp lenses of the head-
lamps. !
Do not use distilled or de-ionised water in
the washer fluid reservoir. Otherwise, the
level sensor may be damaged.
i Add windscreen washer concentrate, e.g.
MB SummerFit, to the washer fluid all year
round. Example: washer fluid reservoir
X
Mix the windscreen washer fluid in a con-
tainer beforehand.
X At temperatures above freezing: fill the
washer fluid reservoir with amix of water
and windscreen washer concentrate (e.g.
MB SummerFit).
X At temperatures below freezing: fill the
washer fluid reservoir with amix of water
and windscreen washer concentrate (e.g.
MB WinterFit). Adapt the mixing ratio to the
outside temperatures.
X To open: pull cap:upwards by the tab.
X Top up with the premixed washer fluid.
X To close: press cap :onto the filler neck
until it engages. Maintenance
ASSYST PLUS service interval display
Service messages Information on the type of service and service
intervals (see separate Service Booklet).
You can obtain further information from a
Mercedes-Benz Service Centre. Maintenance
269Maintenance and care Z

The ASSYST PLUS service interval display
informs you when the next service is due.
If a service due date has been exceeded, you
also hear an acoustic signal.
The multifunction display shows a service
message for a few seconds, e.g.
Next service A due in .. days
Service A due
Service A overdue by ... days
The letter indicates which service is due.
Astands for a minor service and
B for a major
service. A number or another letter may be
displayed after the letter .This figure indicates
any necessary additional maintenance work
to be performed.
If you report this displayed information to a
qualified specialist workshop, for example a
Mercedes-Benz Service Centre, they can
inform you of the costs the service will incur.
The ASSYST PLUS service interval display
does not take into account any periods of
time during which the battery is disconnec-
ted.
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 Subtract the battery disconnection periods
from the service date shown on the display
after reconnecting the battery.
Hiding aservice message X
Press %ora on the steering wheel.
Displaying service messages X
Switch on the ignition. X
Press =or; on the steering wheel
to selec tthe Serv. menu.
X Press 9or: to select the ASSYST PLUS submenu and press
ato confirm.
The service due date appears in the multi-
function display.
Please bear the following in mind Aq
ualified specialist workshop, e.g. a
Mercedes-Ben zService Centre, will reset the
ASSYST PLUS service interval display after
the necessary service work has been carried
out.
You can obtain further information, e.g.
regarding service work, from a Mercedes-
Benz Service Centre or directly from
Mercedes-Benz.
! If the ASSYST PLUS service interval indi-
cator has been inadvertently reset, this set-
ting can be corrected at a Mercedes-Benz
Service Centre.
Have the service work carried out as descri-
bed in the Service Booklet. There may oth-
erwise be increased wear, resulting in dam-
age to the vehicle or to the major assem-
blies. Care
Notes on care
Regular care of your vehicle is a condition for
retaining the quality in the long term.
Use care products and cleaning agents rec-
ommended and approved by Mercedes-Benz.
! For cleaning your vehicle, do not use any
of the following:
R dry, rough or hard cloths
R abrasive cleaning agents
R solvents
R cleaning agents containing solvents
Do not scrub.
Do not touch the surfaces or protective
films with hard objects, e.g. a ring or ice 270
CareMaintenance and care

scraper. You could otherwise scratch or
damage the surfaces and protective film. H
Environmental note
Dispose of empty packaging and cleaning
cloths in an environmentally responsible man-
ner.
! Do not park up the vehicle for an extended
period straight after cleaning it, particularly
after having cleaned the wheels with wheel
cleaner. Wheel cleaners could cause
increased corrosion of the brake discs and
brake pads/linings. For this reason, you
should drive for a few minutes after clean-
ing. Braking heats the brake discs and
brake pads, thus drying them. The vehicle
can then be parked up. Care of the exterior
Automatic car wash G
Risk of accident
Braking efficiency is reduced after washing
the vehicle. This could cause an accident. For
this reason, following a car wash, drive with
particular care until the brakes are dry. G
Risk of accident
The vehicle is braked when the HOLD function
or DISTRONIC PLUS is activated. Therefore,
deactivate the HOLD function and DISTRONIC
PLUS before the vehicle is washed in an auto-
matic car wash.
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.
! 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 key:
do not remove the key from the ignition
lock. 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
automatically and locks the wheels. You
can prevent this by shifting the auto-
matic transmission to Nbeforehand.
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
automatically 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 key to position 2(Y page 129) in
the ignition lock.
Use the key instead of the Start/Stop but-
ton on vehicles with KEYLESS-GO.
X Depress and hold the brake pedal.
X Shift the automatic transmission to posi-
tion N.
X Release the brake pedal.
X Release the parking brake.
X Switch off the ignition and leave the key in
the ignition lock.
! Make sure that:
R the side windows and sliding sunroof are
closed completely.
R the blower for the ventilation/heating is
switched off (OFF button is depressed).
R the windscreen wiper switch is at posi-
tion 0.
The vehicle could otherwise be damaged.
After using an automatic car wash, wipe off
wax from the windscreen and the wiper
blades. This will prevent smears and reduce
wiping noises caused by residue on the wind-
screen. Care
271Maintenance and care Z

High-pressure cleaning equipment
G
Risk of accident
Do not use high-pressure cleaners with circu-
lar-jet nozzles (dirt grinders) to clea nyour
vehicle, in particular the tyres. You could oth-
erwise damage the tyres and cause an acci-
dent.
! Always maintain a distance of at least
30 cm between the vehicle and the high-
pressure cleaner nozzle. Information about
the correc tdistance is available fro mthe
equipment manufacturer.
Move the high-pressure cleaner nozzle
around when cleaning your vehicle.
Do not aim directly at any of the following:
R tyres
R door gaps, roof gaps, joints etc.
R electrical components
R battery
R connectors
R lights
R seals
R trim elements
R ventilation slots
Damaged seals or electrical components
can lead to leaks or failures.
Cleaning the wheels !
Do not use acidic wheel cleaning products
to remove brake dust. This could damage
wheel bolts and brake components.
! Do not park up the vehicle for an extended
period straight after cleaning it, particularly
after having cleaned the wheels with wheel
cleaner. Wheel cleaners could cause
increased corrosion of the brake discs and
brake pads/linings. For this reason, you
should drive for a few minutes after clean-
ing. Braking heats the brake discs and
brake pads, thus drying them. The vehicle
can then be parked up. Cleaning the paintwork Scratches, corrosive deposits, areas affected
by corrosion and damage caused by inade-
quate care cannot always be completely
repaired. In such cases, visit a qualified spe-
cialist workshop, e.g. a Mercedes-Benz
Service Centre.
X Remove impurities immediately, where
possible, whilst avoiding rubbing too hard.
X Soak insect remains with insect remover
and rinse off the treated areas afterwards.
X Soak bird droppings with water and rinse
off the treated areas afterwards.
X Remove coolant, brake fluid, tree resin,
oils, fuels and greases by rubbing gently
with a cloth soaked in petroleum ether or
lighter fluid.
X Use tar remover to remove tar stains.
X Use silicone remover to remove wax.
! Do not affix:
R stickers
R films
R magnetic plates or similar items
to painted surfaces. You could otherwise
damage the paintwork.
Care and treatment of matt paintwork If your vehicle has a clear matt finish, observe
the following instructions in order to avoid
damage to the paintwork due to incorrect
care.
These notes also apply to light alloy wheels
with a clear matt finish.
! Never polish the vehicle or the light alloy
wheels. Polishing makes the paintwork
shiny.
! Never use paint cleaner, buffing or pol-
ishing products, or gloss preserver, e.g.
wax. These products are only suitable for
high-gloss surfaces. Their use on vehicles
with matt finish leads to considerable sur-
face damage (shiny, spotted areas). 272
CareMaintenance and care

Always have paintwork repairs performed
at a qualified specialis tworkshop, e.g. a
Mercedes-Benz Service Centre.
! Do not use wash programs with a hot wax
treatment under any circumstances.
i Use only insect remover and car shampoo
from the range of recommended and
approved Mercedes-Benz care products.
Cleaning the windows G
Risk of injury
Switch off the windscreen wipers and remove
the key from the ignition lock before cleaning
the windscreen or the wiper blades. On vehi-
cles with KEYLESS-GO, press the Start/Stop
button repeatedly until all indicator lamps in
the instrument cluster have gone off. The
windscreen wipers could otherwise move and
injure you.
X Clean the inside and outside of the win-
dows with a damp cloth and a cleaning
agent that is recommended and approved
by Mercedes-Benz.
! Do not use dry cloths, abrasive products,
solvents or cleaning agents containing sol-
vents to clean the inside of the windows.
Do not use hard object sto clean the insides
of the windows, e.g. an ice scraper or ring.
There is otherwise a risk of damaging the
windows.
! Clean the water drainage channels of the
windscreen and the rear window at regular
intervals. Deposits such as leaves, petals
and pollen may under certain circumstan-
ces prevent water from draining away.T his
can lead to corrosion damage and damage
to electronic components.
Cleaning the wiper blades G
Risk of injury
Switch off the windscreen wipers and remove
the key from the ignition lock before cleaning
the windscreen or the wiper blades. On vehi- cles with KEYLESS-GO, press the Start/Stop
button repeatedly until all indicator lamps in
the instrument cluster have gone off. The
windscreen wipers could otherwise move and
injure you.
! Do not pull on 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
graphite coating could be damaged. This
could cause wiper noise.
X Fold the wiper arms away from the wind-
screen.
X Cleant he wiper blades carefully using a
damp cloth.
X Fold the windscreen wipers back again
before switching on the ignition.
! Hold the wiper arm securely when folding
back. The windscreen could be damaged if
the wiper arm hits against it suddenly.
Cleaning the exterior lighting X
Cleant he plastic lenses of the exterior
lighting using a wet sponge and a mild
cleaning agent, e.g. Mercedes-Ben zcar
shampoo or cleaning cloths.
! 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 exterior lighting. Care
273Maintenance and care Z

Cleaning the sensors
X
Clean sensors :of the driving systems
with water, car shampoo and a sof tcloth.
! If you clean the sensors with a high-pres-
sure cleaner, make sure that you keep a
distance of at least 30 cm between the
vehicle and the high-pressure cleaner noz-
zle. Information about the correct distance
is available fro mthe equipment manufac-
turer.
Cleaning the reversing camera X
Use clear water and a soft cloth to clean
camera lens :.
! Do not clean the camera lens and the area
around the reversing camera with a high-
pressure cleaner. Cleaning the exhaust tail pipes 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
tail pipe by cleaning it regularly, especially in
winter and after washing.
!
Do not clean the exhaust tail pipes with
alkaline-based cleaning agents, such as
wheel cleaner.
X Cleant he exhaust tail pipes with a chrome
care product tested and approved by
Mercedes-Benz. Interior care
Cleaning the display X
Before cleaning the display, make sure that
it is switched off and has cooled down.
X Cleant he display surface using a commer-
cially-available microfibre cloth and TFT/
LCD display cleaner.
X Dry the display surface using a dry micro-
fibre cloth.
! For cleaning, do not use any of the fol-
lowing:
R alcohol-based thinner or petrol
R abrasive cleaning agents
R commercially-available household clean-
ing agents
These may damage the display surface. Do
not put pressure on the display surface
when cleaning. This could lead to irrepara-
ble damage to the display.
Cleaning Night View Assist Plus !
Never clean the camera lens. When clean-
ing the field of vision of the driving systems,
make sure that you do not spray glass
cleaner on the camera lens. If the camera
lens is dirty, visit a qualified specialist work- 274
CareMaintenance and care

shop, e.g. a Mercedes-Benz Service
Centre.
X
Fold down the camera cover by recess :.X
Use a soft cloth to clean the windscreen in
front of camera ;.
Cleaning the plastic trim G
Risk of injury
When cleaning the steering wheel boss and
dashboard, do not use cockpit sprays or
cleaning agents containing solvents. Cleaning
agents containing solvents cause the surface
to become porous, and as aresult plastic
parts may break away and be thrown around
the interior when an airbag is deployed, which
may result in severe injuries.
! Do not affix the following to plastic surfa-
ces:
R stickers
R films
R scented oil bottles or similar items
You could otherwise damage the plastic. !
Do not allow cosmetics, insect repellent
or sunscreen to come in contact with the
plastic trim .This maintains the high-quality
look of the surfaces.
X Wipe the plastic trim with a damp, lint-free
cloth, e.g. a microfibre cloth.
X Heavy soiling: use car care and cleaning
products recommended and approved by
Mercedes-Benz.
The surface may change colour tempora-
rily. Wait until the surface is dry again.
Cleaning real wood and trim strips X
Wipe the wooden trim and trim strips with
a damp, lint-free cloth, e.g. a microfibre
cloth.
X Heavy soiling: use car care and cleaning
products recommended and approved by
Mercedes-Benz.
! Do not use solvent-based cleaning agents
such as tar remover, wheel cleaners, pol-
ishes or waxes. There is otherwise a risk of
damaging the surface.
Cleaning the seat covers !
Do not use microfibre cloths to clean gen-
uine leather, artificial leather or
Alcantara® covers. If used often, these can
damage the cover.
! Observe the following when cleaning:
R clean genuine leather covers carefully
with a damp cloth and then wipe the cov-
ers down with a dry cloth. Make sure that
the leather does not become soaked. It
may otherwise become rough and
cracked. Only use leather care agents
that have been tested and approved by
Mercedes-Benz. You can obtain these
from a qualified specialist workshop, e.g.
a Mercedes-Benz Service centre.
R clean artificial leather covers with a cloth
moistened with a solution containing 1%
detergent (e.g. washing-up liquid). Care
275Maintenance and care Z

R
clean cloth covers with a microfibre cloth
moistened with a solution containing 1%
detergent (e.g. washing-up liquid). Rub
carefully and always wipe entire sea tsec-
tions to avoid leaving visible lines. Leave
the seat to dry afterwards. Cleaning
results depend on the type of dirt and
how long it has been there.
R clean Alcantara® covers with a damp
cloth. Make sure you wipe entire seat
sections to avoid leaving visible lines.
i Note that regular care is essential to
ensure that the appearance and comfort of
the covers is retained over time.
Cleaning the seat belts X
Use clean, lukewarm water and soap solu-
tion.
! Do not clean the seat belts using chemical
cleaning agents .Do not dry the seatbelts
at temperatures above 80 †orby exposing
them to direc tsunlight. 276
CareMaintenance and care