2010 MERCEDES-BENZ CLS COUPE tyre pressure

Display messages Possible causes/consequences and
M Solutions
h
Tyre pressure Cau‐
tion, tyre malf. G
Risk of accident
The tyre pressure in one or more tyres has dropped suddenly.
Aw arning tone also sounds.
X Stop the vehicle without making any sudde nsteering or braking
manoeuvres .Pay attentio nto the traffic conditions as you do
so.
X If necessary, change a wheel (Y page 309).h
Tyre pressure
Check tyre(s) G
Risk of accident
The tyre pressure in one or more tyres has dropped significantly.
X Stop the vehicle without making any sudden steering or braking
manoeuvres. Pay attention to the traffic conditions as you do
so.
X If necessary, change a wheel (Y page 309).
X Check the tyre pressure. If necessary, correc tthe tyre pressure
(Y page 307). h
Please
correct the
tyre pressure The tyre pressure is too low in at least one of the tyres or the tyre
pressure difference between the wheels is too great.
X
Check the tyre pressures at the next opportunity. If necessary,
correct the tyre pressure (Y page 307).Vehicle
Display messages Possible causes/consequences and
M Solutions
To start engine,
shift to P or N You have attempted to start the engine with the transmission in
position
Ror D.
X Shift the transmission to position Por N. Auxiliary battery
malfunction The auxiliary battery for the automatic transmission is no longer
being charged.
X
Visit a qualified specialist workshop. Apply brake to
deselect Park (P)
position You have attempted to move the transmission selector lever to
position
D,Ror Nwithout depressing the brake pedal.
X Depress the brake pedal. 234
Display messagesOn-board computer and displays

Driving systems
Problem Possible causes/consequences and
M Solutions
·
The red distance warn-
ing lamp lights up while
the vehicle is in motion.
G
Risk of accident
The distance to the vehicle in fron tis too small for the speed
selected.
X Increase the distance. ·
The red distance warn-
ing lamp lights up while
the vehicle is in motion.
Aw arning tone also
sounds. G
Ris
kofa ccident
Aw arning is issued if:
R you are approaching a vehicle in fron tattoo great a speed
R DISTRONIC PLUS or PRE-SAFE ®
Brake has detected a stationary
obstacle in your line of travel
X Be prepared to brake immediately.
X Pay careful attention to the traffic situation. You may have to
brake or take evasive action. Tyres
Problem Possible causes/consequences and
M Solutions
h
The yellow tyre pres-
sure monitor warning
lamp is on. G
Risk of accident
The tyre pressure monitor has detected a loss of pressure in at
least one of the tyres.
X Stop the vehicle without making any sudden steering or braking
manoeuvres. Pay attention to the traffic conditions as you do
so.
X Observe the additional display messages in the multifunction
display.
X Check the tyre pressure. If necessary, correc tthe tyre pressure
(Y page 307).
X If necessary, change a wheel (Y page 309).246
Warning and indicator lamps in the instrument clusterOn-board computer and displays

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

X
Screw the valve insert back into the valve.
X Screw the valve cap back on. Flat tyre
Preparing the vehicle
Your vehicle may be equipped with:
R a TIREFIT kit
R an emergency spare wheel
R MOExtended tyres (tyres with run-fla tchar-
acteristics) (Y page 289)
i Vehicle preparation is not necessary on
vehicles with MOExtended tyres.
i Vehicles with MOExtended tyres are not
equipped with a TIREFIT kit at the factory.
It is therefore recommended that you addi-
tionally equip your vehicle with a TIREFIT kit
if you fit tyres that do not feature run-flat
properties, e.g. winter tyres. You can obtain
aT IREFIT kit from aMercedes-Benz Service
Centre, for example.
X Vehicles with AIRMATIC: make sure that
"normal" level is selected (Y page 167).
X Stop the vehicle as far away as possible
from traffic on solid, non-slippery and level
ground.
X Switch on the hazard warning lamps.
X Bring the fron twheels into the straight-
ahead position.
X Move the DIRECT SELECT lever to P.
X Switch off the engine.
X Vehicles without KEYLESS-GO: remove
the key from the ignition lock.
X Vehicles with KEYLESS-GO: open the
driver's door.
The on-board electronics have status 0,
which is the same as the key having been
removed.
X Vehicles with KEYLESS-GO: remove the
Start/Stop button from the ignition lock
(Y page 129). X
All occupants must get out of the vehicle.
Make sure that they are not endangered as
they do so.
X Make sure that no one is near the danger
area whilst a wheel is being changed. Any-
one who is not directly assisting in the
wheel change should, for example, stand
behind the barrier.
X Get out of the vehicle. Pay attention to traf-
fic conditions when doing so.
X Close the driver's door.
X Place the warning triangle (Y page 278) a
suitable distance away.O bserve legal
requirements. TIREFIT kit
Using the TIREFIT kit You can use the TIREFIT kit to seal small
punctures, particularly those in the tyre tread.
You can use TIREFIT at outside temperatures
down to -20 †.
G
Risk of accident
In the following situations, your safety is at
particular risk as tyre sealant is unable to pro-
vide sufficient breakdown assistance:
R there are cuts or punctures in the tyre
greater than 4 mm.
R the wheel rim is damaged.
R you have driven at very low tyre pressures
or on a flat tyre.
Do not drive any further. Consult a qualified
specialist workshop which has the necessary
specialist knowledge and tools to carry out
the work required.
Mercedes-Benz recommends that you use a
Mercedes-Benz Service Centre for this pur-
pose. In particular, work relevant to safety or
on safety-related system smust be carried out
at a qualified specialist workshop. Flat tyre
281Breakdown assistance Z

i
First, TIREFIT is pumped into the tyre .The
pressure can briefly rise to approximately
500 kPa (5 bar/73 psi).
Do not switch off the tyre inflation com-
pressor during this phase.
X Allow the tyre inflation compressor to run
for five minutes. The tyre should then have
attained a pressure of at least 180 kPa
(1.8 bar/26 psi).
! Do not operate the tyre inflation com-
pressor for longer than eight minutes at a
time without a break. It may otherwise
overheat.
The tyre inflation compressor can be oper-
ated again once it has cooled down.
If a pressure of 180 kPa (1.8 bar/26 psi) has
been achieved after five minutes, see
(Y page 283).
If a pressure of 180 kPa (1.8 bar/26 psi) has
not been achieved after five minutes, see
(Y page 283).
Tyre pressure of 180 kPa (1.8 bar/
26 psi) is not reached If, after five minutes, a pressure of 180 kPa
(1.8 bar/26 psi) has not been achieved:
X Press the on/off switch on the tyre inflation
compressor to 0.
The tyre inflation compressor is switched
off.
X Unscrew the filler hose from the valve.
X Very slowly drive forwards or reverse
approximately 10 m.
X Pump up the tyre again. G
Risk of accident
If after five minutes apressure of 180 kPa
(1 8 bar/26 psi) cannot be achieved, the tyre
is too severely damaged.
Do not drive any further. Consult a qualified
specialist workshop which has the necessary
specialist knowledge and tools to carry out
the work required. Mercedes-Benz recom-
mends that you use a Mercedes-Benz Service Centre for this purpose. In particular, work
relevant to safety or on safety-related sys-
tems must be carried out at a qualified spe-
cialist workshop.
Tyre pressure of 180 kPa (1.8 bar/
26 psi) is reached X
Press the on/off switch on the tyre inflation
compresso rto0.
The tyre inflation compressor is switched
off.
X Remove the tyre sealant bottle from the
wheel.
! After use, excess TIREFIT may run out of
the filler hose. This may cause stains.
Therefore, place the filler hose in the plastic
bag which contained the TIREFIT kit.
X Stow the tyre sealant bottle, the tyre infla-
tion compressor and the warning triangle.
X Pull away immediately. G
Risk of accident
Do not exceed the maximum speed of
80 km/h.
The "max. 80 km/h" label must be affixed in
the driver's field of vision.
The vehicle's handling characteristics may be
affected.
X Stop after driving for approximately ten
minutes and check the tyre pressure with
the tyre inflation compressor. G
Risk of accident
If the tyre pressure is less than 130 kPa
(1.3 bar/20 psi), the tyre is too severely dam-
aged. Do not drive any further. Consult a
qualified specialist workshop which has the
necessary specialist knowledge and tools to
carry out the work required. Mercedes-Benz
recommends that you use aMercedes-Benz
Service Centre for this purpose. In particular,
work relevant to safety or on safety-related
systems must be carried out at a qualified
specialist workshop. Flat tyre
283Breakdown assistance Z.

X
Correct the tyre pressure if it is still at least
130 kPa (1.3 bar/20 psi) (for the values,
see the fuel fille rflap).
X To increase the tyre pressure: switch on
the tyre inflation compressor. X
To reduce the tyre pressure: press pres-
sure release button Enext to pressure
gauge F.
X Stow the tyre sealant bottle, the tyre infla-
tion compressor and the warning triangle.
X Drive to the nearest workshop and have the
tyre changed there.
X Have the tyre sealant bottle replaced as
soon as possible at a qualified specialist
workshop, e.g. at a Mercedes-Ben zService
Centre. H
Environmental note
Have the used tyre sealant bottle disposed of
professionally, e.g. at aMercedes-Benz
Service Centre.
X Have the tyre sealant bottle replaced every
four years at a qualified specialist work-
shop, e.g. a Mercedes-Benz Service
Centre. Changing
awheel and fitting the spare
wheel
Preparing the vehicle G
Risk of accident
The wheel and tyre size of the emergency
spare wheel/spare wheel may diffe rto that of
the damaged wheel. When using an emer-
gency spare wheel/spare wheel the handling
characteristics of the vehicle may change.
Adapt your style of driving accordingly.
Never operate the vehicle with more than one
emergency spare wheel/spare wheel that dif-
fers in size.
Only use an emergency spare wheel/spare
wheel of a differing size briefly and do not
switch off ESP ®
.
When using an emergency spare wheel you
must not exceed the maximum speed of
80 km/h. G
Risk of accident
Have the emergency spare wheel/spare
wheel replaced with a new wheel as soon as
possible at a qualified specialist workshop
which has the necessary specialist knowledge
and tools to carry out the work required.
Mercedes-Benz recommends that you use a
Mercedes-Benz Service Centre for this pur-
pose. In particular, work relevant to safety or
on safety-related systems must be carried out
at a qualified specialist workshop.
i Vehicles without an emergency spare
wheel/spare wheel are not equipped with
a tyre-change tool kit at the factory. For
more information on which tools are
required to perform a wheel change on your
vehicle, e.g. wheel chock, centring pin or
wheel wrench, consult a Mercedes-Benz
Service Centre. 284
Flat tyreBreakdown assistance

gency spare wheel (Y
page 288) and then
lower the vehicle ( Ypage 288).
or
X Vehicles with a "Minispare" emer-
gency spare wheel: lower the vehicle
(Y page 288)
Inflating the collapsible emergency
spare wheel G
Risk of accident
Inflate the collapsible emergency spare wheel
before lowering the vehicle. You could other-
wise damage the wheel rim. X
Pull plug ?and the air hose out of the
housing.
X Remove the cap from the valve on the col-
lapsible emergency spare wheel.
X Screw union nut :on the air hose onto the
valve.
X Make sure on/offs witchAof the tyre
inflatio ncompressor is set to 0.
X Insert plug ?into the socket of the ciga-
rette lighter (Y page 258) or into a 12 V
power socket (Y page 258) in your vehicle.
X Make sure that the key is in position
1(Y page 129) in the ignition lock.
X Press on/offs witchAon the tyre inflation
compressor to I.
The tyre inflatio ncompressor is switched
on. The tyre is inflated. The tyre pressure is
read at pressure gauge =.!
Do not operate the tyre inflation com-
pressor for longer than eight minutes at a
time without a break. It may otherwise
overheat.
The tyre inflation compressor can be oper-
ated again once it has cooled down.
X Pump the tyre to the specified tyre pres-
sure.
The specified tyre pressure is printed on
the yellow label of the emergency spare
wheel.
X When the specified tyre pressure has been
reached, press on/offs witchAon the
electric air pump to 0.
The tyre inflatio ncompressor is switched
off.
X Turn the key to position 0in the ignition
lock.
X If the tyre pressure is higher than the speci-
fied pressure, press pressure release but-
ton ;until the correct tyre pressure has
been reached.
X Unscrew union nut :on the air hose from
the valve.
X Screw the valve cap ontot he collapsible
emergency spare wheel valve again.
X Stow plug ?and the air hose in the lower
section of the pump housing.
X Stow the tyre inflation compressor in the
designated place in the vehicle.
Lowering the vehicle G
Risk of accident
Inflate the collapsible emergency spare wheel
before lowering the vehicle. You could other-
wise damage the wheel rim.
X Turn the crank of the jack anti-clockwise
until the vehicle is once again standing
firmly on the ground.
X Place the jack to one side. 288
Flat tyreBreakdown assistance

X
Tighten the wheel bolts evenly in a cross-
wise pattern in the sequence indicated
(: toA ). The tightening torque must be
130 Nm. G
Risk of accident
Have the tightening torque checked immedi-
ately after a wheel is changed. The wheels
could work loose if they are not tightened to
a torque of 130 Nm.
X Turn the jack back to its initial position and
store it together with the rest of the vehicle
tool kit in the stowage well under the boot
floor.
For further information on stowing the col-
lapsible emergency spare wheel:
(Y page 280).
i When you are driving with the collapsible
emergency spare wheel fitted, the tyre
pressure loss warning system or the tyre
pressure monitor cannot function reliably.
Only restart the tyre pressure loss warning
system/tyre pressure monitor when the
defective wheel has been replaced with a
new wheel.
Vehicles with tyre pressure monitor: all fit-
ted wheels must be equipped with func-
tioning sensors and the defective wheel
should no longer be in the vehicle. MOExtended tyres (tyres with run-flat
characteristics)
MOExtended tyres (tyres featuring run-flat
characteristics) enable your vehicle to con-
tinue its journey even with a complete loss of
tyre pressure in one or more tyres.
MOExtended tyres may only be used in con-
junction with the activated tyre pressure loss
warning system or with the activated tyre
pressure monitor.
The maximum permissible distance which
can be driven in run-flat mode depends on the
load in the vehicle. It is 80 km if the vehicle
is partially laden and 30 km if fully laden.
The maximum permissible distance which
can be driven in run-flat mode is counted from
the moment the tyre pressure loss warning
appears in the multifunction display.
You must not exceed a maximum speed of
80 km/h. G
Risk of accident
The handling characteristics of your vehicle
deteriorate in run-flat mode, for example:
R when cornering
R when braking
R when accelerating rapidly
Adapt your driving style accordingly and avoid
sudden changes in direction and sudden
acceleration, as well as driving over obstacles
(i.e. kerbs, potholes), and driving off-road.
This is particularly the case when the vehicle
is heavily laden.
The maximum permissible distance that can
be driven in run-flat mode depends to a large
exten tonthe loads placed on the vehicle. It
can be shorter due to high speeds, a heavy
load, sudden changes in direction, the road
surface condition, outside temperature, etc.,
or further if you drive carefully and conserva-
tively.
Do not continue to drive in run-flat mode if:
R you hear banging noises.
R the vehicle starts to shake. Flat tyre
289Breakdown assistance
Z