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(Ypage 147) 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 electric parking brake.
X Switch off the ignition and leave the key in
the ignition lock.
You can wash the vehicle in an automatic car
wash from the very start.
Wash off excess dirt before cleaning the vehi-
cle in an automatic car wash.
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 residueont he wind-
screen.
Washing by hand In some countries, washing by hand is only
allowed at specially equipped washing bays. Observe the legal requirements for each indi-
vidual 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
gentle 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
paintwork.
When using the vehicle in winter, remove all
traces of road salt deposits carefully and as
soon as possible.
High-pressure cleaning equipment G
WARNING
Do not use high-pressure cleaners with circu-
lar-jet nozzles (dirt grinders) to clean your
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 correct distance is available from the
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 326
CareMaintenance and care
Cleaning the windows
G
WARNING
Switch off the windscree nwipers and remove
the key fro mthe 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 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.
! Cleant he 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.
X Cleant he inside and outside of the win-
dows with a damp cloth and a cleaning
agent that is recommended and approved
by Mercedes-Benz.
Cleaning the wiper blades G
WARNING
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.
! Hold the wiper arm securely when folding
back. The windscreen could be damaged if
the wiper arm hits against it suddenly.
X Fold the wiper arms away from the wind-
screen.
X Carefully clean the wiper blades with a
damp cloth.
X Fold the windscreen wipers back again
before switching on the ignition.
Cleaning the exterior lighting !
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.
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.
Mirror turn signal !
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 tur nsignals.
X Clean the plasti clenses of the mirror turn
signals in the exterior mirror housing using
a wet sponge and mild cleaning agent, e.g.
Mercedes-Benzc ar shampoo or cleaning
cloths.
Cleaning the sensors !
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 cleane rnoz-
zle. Information about the correct distance
is available from the equipment manufac-
turer. 328
CareMaintenance and care
On vehicles with COMAND Online and a
navigation system, the clock is set auto-
matically.
R reset the function for folding the exterior
mirrors in/out automatically, by folding
the mirrors out once (Y page 109).Charging the battery
G
WARNING
During charging and jump-starting, explosive
gases can escape from the battery. There is a
risk of an explosion.
Particularly avoid fire, naked flames, creating
sparks and smoking. Ensure there is sufficient
ventilation while charging and jump-starting.
Do not lean over a battery. G
WARNING
Battery acid is caustic. There is a risk of injury.
Avoid contact with the skin, eyes or clothing.
Do not inhale any battery gases. Do not lean
over the battery. Keep children away from
batteries. Wash battery acid immediately with
water and seek medical attention. G
WARNING
A discharged battery can freeze at tempera-
tures below freezing point. When jump-start-
ing the vehicle or charging the battery, gases
can escape from the battery. There is a risk of
an explosion.
Allow the frozen battery to thaw out before
charging it or jump-starting.
! Only use battery chargers with a maxi-
mum charging voltage of 14.8 V.
! Only charge the battery using the jump-
start connection point.
The jump-starting connection point is in the
engine compartment (Y page 344).
If, at low temperatures, the indicator lamps/
warning lamps in the instrument cluster do
not light up, it is highly likely that the dis-
charged battery has frozen. In this case, you may neither charge the battery nor jump-start
the vehicle. The service life of a thawed-out
battery may be shorter. Starting characteris-
tics are particularly impaired at low tempera-
tures. Have the thawed-out battery checked
at a qualified specialist workshop.
Never charge a battery which is still fitted in
the vehicle unless a Mercedes-Benz approved
battery charger is being used.
Abattery
charge runit specially adapted for Mercedes-
Benz vehicles and tested and approved by
Mercedes-Benz is available as an accessory.
It permits the charging of the battery in its
installed position. Contact a Mercedes-Benz
Service Centre for informatio nand availabil-
ity .R ead the battery charger's operating
instructions before chargin gthe battery.
X Open the bonnet (Y page 320).
X Connect the battery charger to the positive
terminal and earth point in the same order
as when connecting the donor battery in
the jump-starting procedure
(Y page 344). Battery (vehicle)
343Breakdown assistance Z
R
Check the tyre for foreign objects.
R Chec kwhether the wheel is losing air or the
valve is leaking.
If you are unable to rectify the damage, con-
tact a qualified specialist workshop. H
Environmental note
Check the tyre pressure regularly, at least
every 14 days.
You will find a table of tyre pressures for var-
ious operating conditions on the inside of
your vehicle's fuel filler flap.
Operation with the emergency spare
wheel(Y page 377).
Operation with a trailer: the applicable
value for the rear tyres is the maximum tyre
pressure value stated in the table inside the
fuel filler flap.
The table inside the fuel filler flap may state
tyre pressures for different load conditions.
These are defined in the table as different
numbers of passengers and amounts of lug-
gage. The actual number of seats may vary;
for more information, please refer to the vehi-
cle's registration documents.
If tyre sizes are not specified, the tyre pres-
sures stated on the tyre pressure information
label apply for all tyres approved for this vehi-
cle. If a tyre size precedes a tyre pressure, the
following tyre pressure information is only
valid for that tyre size.
Use a suitable pressure gauge to check the
tyre pressure. The outer appearance of a tyre does not permit any reliable conclusion about
the tyre pressure. On vehicles fitted with the
electronic tyre pressure monitor, the tyre
pressure can be checked using the on-board
computer.
If possible, only correct tyre pressures when
the tyres are cold.
The tyres are cold:
R
if the vehicle has been parked with the tyres
out of direct sunlight for at least three
hours and
R if the vehicle has not been driven further
than 1.6 km
Depending on the ambient temperature, the
speed at which you are driving and the load
on the tyres, the tyre temperature and thus
the tyre pressure change by approximately
10 kPa per 10 † (0.1 ba r/1.5 psi). Take this
into account whe nchecking the pressure of
warm tyres. Only correct the tyre pressure if
it is too low for the current operating condi-
tions.
Driving with tyre pressure that is too high or
too low can:
R shorten the service life of the tyres
R cause increased tyre damage
R have a negative effect on handling charac-
teristics and thus the driving safety (e.g.
aquaplaning)
i The tyre pressure values given for low
loads are minimum values which offer you
good ride comfort characteristics.
However, you can also use the values given
for higher loads. These are permissible and
will not adversely affect the running of the
vehicle. Tyre pressure loss warning system
Important safety notes While the vehicle is in motion, the tyre pres-
sure loss warning system monitors the set
tyre pressure using the rotational speed of
the wheels. This enables the system to detect358
Tyre pressureWheels and tyres
Warning messages of the tyre pressure
monitor If the tyre pressure monitor detects a signifi-
cant pressure loss on one or more tyres, a
warning message is show ninthe multifunc-
tion display. Awarning tone also sounds and
the tyre pressure warning lamp lights up in
the instrument cluster.
Each tyre that is affected by a significant loss
of pressure is highlighted in the pressure dis-
play.
X If the Please correct tyre pressure message appears in the multifunction dis-
play, check the tyre pressure on all four
wheels and correct it if necessary.
i If the wheel positions on the vehicle are
interchanged, the tyre pressures may be
displayed for the wrong positions for a
short time. This is rectified after a few
minutes of driving and the tyre pressures
are displayed for the correct positions.
Restarting the tyre pressure monitor When you restar
tthe tyre pressure monitor,
all existing warning messages are deleted and
the warning lamps go out. The monitor uses
the currently set tyre pressures as the refer-
ence values for monitoring. In most cases, the
tyre pressure monitor will automatically
detect the new referencev alues after you
have changed the tyre pressure .However,
you can also define reference values man-
ually as described here. The tyre pressure
monitor then monitors the new tyre pressure
values.
X Use the table on the inside of the fuel filler
flap to ensure that the tyre pressure is set
correctly in all four tyres for the current
operating conditions.
Also observe the notes in the section on
tyre pressures (Y page 357).
X Make sure that the key is in position 2in
the ignition lock. X
Press the =or; buttons on the
steering wheel to select the Serv. menu.
X Press the 9or: button to select
Tyre pressure .
X Press the abutton.
The multifunction display shows the cur-
rent tyre pressure for each tyre or the
Tyre pressures will be displayed after a few minutes of driving mes-
sage.
X Press the :button.
The multifunction display shows the Use current pressure values as new ref‐
erence values message.
If you wish to confirm the restart:
X Press the abutton.
The Tyre press. monitor restarted message appears in the multifunction dis-
play.
After you have driven for a few minutes, the
system checks whether the current tyre
pressures are within the specified range.
The new tyre pressures are then accepted
as reference values and monitored.
If you wish to cancel the restart:
X Press the %button.
The tyre pressure values stored at the last
restart will continue to be monitored.
Radio type approval for the tyre pres-
sure monitor In certain countries, a radio type approval for
the tyre pressure monitor may be required.
The radio type approval number for the tyre
pressure monitor can be found online at:
http://www.mercedes-benz.de/
betriebsanleitung.
Missing values were not available at the time
of going to print. Tyre pressure
361Wheels and tyres Z
Securing the vehicle on level ground (example:
CLS Coupé)
X
On level ground: place chocks or other
suitable items under the front and rea rof
the wheel tha tis diagonally opposite the
wheel you wish to change. Securing the vehicle on slight downhill gradients
(example: CLS Coupé)
X On light downhill gradients: place
chocks or other suitable items in front of
the wheels of the front and rear axle.
Raising the vehicle G
WARNING
If you do not position the jack correctly at the
appropriate jacking point of the vehicle, the
jack could tip over with the vehicle raised.
There is a risk of injury.
Only position the jack at the appropriate jack-
ing point of the vehicle. The base of the jack
must be positioned vertically, directly under
the jacking point of the vehicle. The following must be observed when raising
the vehicle:
R
to raise the vehicle, only use the vehicle-
specific jack that has been tested and
approved by Mercedes-Benz. If the jack is
used incorrectly, it could tip over while the
vehicle is raised.
R the jack is designed only to raise and hold
the vehicle for a short time while a wheel
is being changed. It is not suited for per-
forming maintenance work under the vehi-
cle.
R avoid changing the wheel on uphill and
downhill slopes.
R before raising the vehicle, secure it from
rolling away by applying the parking brake
and inserting wheel chocks. Never disen-
gage the parking brake while the vehicle is
raised.
R the jack must be placed on a firm, flat and
non-slip surface. On a loose surface, a
large, load-bearing underlay must be used.
On a slippery surface, a non-slip underlay
must be used, e.g. rubber mats.
R do not use wooden blocks or similar
objects as a jack underlay.O therwise, the
jac kw ill not be able to achieve its load-
bearing capacity due to the restricted
height.
R make sure that the distance between the
underside of the tyres and the ground does
not exceed 3 cm.
R never place your hands or feet under the
raised vehicle.
R never lie under the raised vehicle.
R never start the engine when the vehicle is
raised.
R never open or close a door or the boot lid/
tailgate when the vehicle is raised.
R make sure that no persons are present in
the vehicle when the vehicle is raised. 364
Changing
awheelWheels and tyres
Tyres
CLS 250 CDI BlueEFFICIENCY Summer tyres
R 17
Tyres Light-alloy wheels
BA: 245/4
5 R17 99 Y XL 2 BA: 8.5 J x 17 H2 ET 34.5
BA: 245/45 R17 99 Y XL MOExtended
2, 3 BA: 8.5 J x 17 H2 ET 34.5
R 18
Tyres Light-allo
ywheels BA: 255/40 R18 99 Y XL BA: 8.5 J x 18 H2 ET 34.5
BA: 255/40 R18 99 Y XL MOExtended
3 BA: 8.5 J x 18 H2 ET 34.5
FA: 255/40 R18 99 Y XL
RA: 285/35 R18 97 Y
4 FA: 8.5 J x 18 H2 ET 34.5
RA: 9.5 J x 18 H2 ET 48
FA: 255/40 R18 99 Y XL MOExtended
3
RA: 285/35 R18 97 Y MOExtended 3, 4 FA: 8.5 J x 18 H2 ET 34.5
RA: 9.5 J x 18 H2 ET 48
R 19
Tyres Light-alloy wheels
FA: 255/35 R19 96 Y XL
5
RA: 285/30 R19 98 Y XL 4, 5 FA: 8.5 J x 19 H2 ET 34.5
RA: 9.5 J x 19 H2 ET 48
All-weather tyres
R 18
Tyres Light-alloy wheels
FA: 255/40 R18 99 H XL M+S
RA: 285/35 R18 97 H XL M+S
4, 5 BA: 8.5 J x 18 H2 ET 34.5
BA: 9.5 J x 18 H2 ET 48
2
Not in combination with sports suspension (code 486) or Sports package (code 950).
3 MOExtended tyres (tyres featuring run-fla tcharacteristics) only in combination with an activated tyre pres-
sure loss warning system or tyre pressure monitor.
4 The use of snow chains is not permitted. Observe the notes under "Snow chains".
5 Observe the notes on "large wheels" in "Wheel/tyre combinations" under "General notes". Wheel and tyre combinations
369Wheels and tyres Z
Winter tyres
R 17
Tyres Light-alloy wheels
BA: 245/45 R17 99 H XL M+S
i2 BA: 8.5 J x 17 H2 ET 34.5
BA: 245/45 R17 99 V XL M+S
iMOExtended2, 3 BA: 8.5 J x 17 H2 ET 34.5
R 18
Tyres Light-alloy wheels
BA: 255/40 R18 99 V XL M+S
i BA: 8.5 J x 18 H2 ET 34.5
BA: 255/40 R18 99 V XLM+S
iMOExtended3 BA: 8.5 J x 18 H2 ET 34.5
CLS 350 BlueEFFICIENCY
Summer tyres
R 17
Tyres Light-alloy wheels
BA: 245/45 R17 99 Y XL
2 BA: 8.5 J x 17 H2 ET 34.5
BA: 245/45 R17 99 Y XL MOExtended
2, 3 BA: 8.5 J x 17 H2 ET 34.5
R 18
Tyres Light-alloy wheels
BA: 255/40 R18 99 Y XL BA: 8.5 J x 18 H2 ET 34.5
BA: 255/40 R18 99 Y XL MOExtended
3 BA: 8.5 J x 18 H2 ET 34.5
FA: 255/40 R18 99 Y XL
FA: 285/35 R18 97 Y
4 FA: 8.5 J x 18 H2 ET 34.5
RA: 9.5 J x 18 H2 ET 48
FA: 255/40 R18 99 Y XL MOExtended
3
RA: 285/35 R18 97 Y MOExtended 3, 4 FA: 8.5 J x 18 H2 ET 34.5
RA: 9.5 J x 18 H2 ET 48
2
Not in combination with sports suspension (code 486) or Sports package (code 950).
3 MOExtended tyres (tyres featuring run-fla tcharacteristics) only in combination with an activated tyre pres-
sure loss warning system or tyre pressure monitor.
4 The use of snow chains is not permitted. Observe the notes under "Snow chains". 370
Wheel and tyre combinationsWheels and tyres