2011 MERCEDES-BENZ CLS-CLASS tire pressure

the TPMS is not a substitute for proper tire
maintenance, and it is the driver’s
responsibility to maintain correct tire
pressure, even if underinflation has not
reached
the level to trigger illumination of the
TPMS low tire pressure telltale.
USA only:
Your vehicle has also been equipped with a
TPMS malfunction indicator to indicate when
the system is not operating properly. The
TPMS malfunction indicator is combined with
the low tire pressure telltale. When the
system detects a malfunction, the telltale will
flash for approximately 1 minute and then
remain continuously illuminated. This sequence will continue upon subsequent
vehicle start-ups as long as the malfunction
exists. When the malfunction indicator is
illuminated, the system may not be able to
detect
or signal low tire pressure as intended.
TPMS malfunctions may occur for a variety of
reasons, including the installation of
incompatible replacement or alternate tires
or wheels on the vehicle that prevent the
TPMS from functioning properly. Always
check the TPMS malfunction telltale after
replacing one or more tires or wheels on your
vehicle to ensure that the replacement or
alternate tires and wheels allow the TPMS to
continue to function properly. Lamp in center console
Problem
Possible causes/consequences and
X Solutions04
The front passenger
front air bag off
indicator lamp
illuminates and
remains illuminated
with the weight of a
typical adult or
someone larger than a
small individual on the
front passenger seat.
The system is malfunctioning.
X
Have the system checked as soon as possible at an authorized
Mercedes-Benz Center.
X Read and observe messages in the multifunction display and
follow corrective steps (Y page 228). G
Warning!
If the 04 indicator lamp
illuminates and remains illuminated with the
weight of a typical adult or someone larger than a small individual on the front passenger
seat,

do not have any passenger use the front
passenger seat until the system has been
repaired. 260
What to do if …
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Removing wiper blades
! Do not pull on the wiper blade inserts.
They could tear.
X Fold the wiper arm forward until it snaps
into place. X
Turn the wiper blade at a right angle to
wiper arm.
X Slide the wiper blade sideways out of the
retainer. Installing wiper blades
X Slide the wiper blade onto the wiper arm
until it locks in place.
X Rotate the wiper blade into a position
parallel to the wiper arm.
X Fold the wiper arm backward to rest on the
windshield.
Make sure you hold on to the wiper when
folding the wiper arm back.
! Make sure the wiper blades are installed
properly. Improperly installed wiper blades
may cause windshield damage. Flat tire
Safety notes
Your vehicle may be equipped with a
Minispare wheel or a spare wheel with
collapsible tire. For information on your vehicle’s equipment,
see “Rims and tires” (
Y page 291). G
Warning!
The dimensions of the spare wheel are
different from those of the road wheels. As a
result, the vehicle handling characteristics
change when driving with a spare wheel
mounted. Adapt your driving style
accordingly.
The spare wheel is for temporary use only.
When driving with a spare wheel mounted,
ensure proper tire inflation pressure and do
not exceed a vehicle speed of 50 mph
(80 km/h).
Contact the nearest authorized Mercedes-
Benz Center as soon as possible to have the
spare wheel replaced with a regular road
wheel.
Never operate the vehicle with more than one
spare wheel mounted.
Do not switch off the ESP ®
when a spare
wheel is mounted. Preparing the vehicle
X Whenever possible, park the vehicle in a
safe distance from moving traffic on a hard,
flat surface.
X Turn on the hazard warning flasher.
X Turn the steering wheel so that the front
wheels are in a straight-ahead position.
X Engage the parking brake.
X Shift the automatic transmission into park
position P.
X Turn off the engine.
X Remove the SmartKey from the starter
switch.
or
X Vehicles with KEYLESS-GO: Open the
driver’s door (this puts the starter switch in
position 0, same as with the SmartKey
removed from the starter switch). The
driver’s door can then be closed again. Flat tire
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X
Guide the spare wheel onto the alignment
bolt and push it on.
X Insert the wheel bolts and tighten them
slightly.
X Unscrew the alignment bolt.
X Install the last wheel bolt and tighten it
slightly.
X Vehicles with spare wheel with
collapsible tire: Continue the procedure
by following the instructions under
“Inflating the collapsible tire”
(Y page 275) and then “Lowering the
vehicle” ( Y page 276).
or
X Vehicles with Minispare wheel: Continue
the procedure by following the instructions
under “Lowering the vehicle”
(Y page 276).
Inflating the collapsible tire G
Warning!
Inflate collapsible tire only after the wheel is
properly attached.
Inflate the collapsible tire using the electric
air pump before lowering the vehicle.
G
Warning!
Observe safety instructions on air pump label.
! Do not lower the vehicle before inflating
the collapsible tire. Otherwise the rim may
be damaged.
Your vehicle may be equipped with either of
two versions of the electric air pump:
R Version 1: The air hose with pressure
gauge and the electrical plug are located
behind a flap.
R Version 2: The pressure gauge is located
in the pump housing. The air hose and
electrical plug are located at the bottom of
the pump housing. The following description applies to both
versions. Differences in usage are expressly
declared.
Version 1
Version 2
X
Version 1 only: Open flap : on electric
air pump.
X Version 1 only: Pull out electrical plug
= and air hose with pressure gauge and
vent screw ?.
X Version 2 only: Pull electrical plug = and
the air hose out of the pump housing
bottom.
X Version 1 only: Close vent screw on air
hose ?.
X Remove the valve cap from the collapsible
tire valve.
X Screw union nut A onto the collapsible tire
valve.
X Make sure air pump switch ; is set to 0.
X Insert electrical plug = into the cigarette
lighter socket ( Y page 163) or a power
outlet (Y page 163). Flat tire
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X
Turn the SmartKey in the starter switch to
position 1.
or
X Vehicles with KEYLESS-GO: Press the
KEYLESS-GO start/stop button once. Do
not depress the brake pedal.
X Press I on electric air pump switch ;.
The electric air pump switches on and
inflates the collapsible tire.
X Inflate the collapsible tire to the
recommended tire inflation pressure as
specified for your vehicle ( Y page 296).
This should take approximately 5 minutes. G
Warning!
The air hose and the union nut can become
hot during inflation. Exercise proper caution
to avoid burning yourself when using the
equipment.
! Do not operate the electric air pump
longer than 8 minutes without interruption.
Otherwise it may overheat.
You may operate the air pump again after
it has cooled off.
! Compare the recommended tire inflation
pressure for your vehicle with the tire
inflation pressure on the yellow label
located on the spare wheel rim.
If the tire inflation pressure on the yellow
label on the spare wheel rim differs from
the values given in this Operator’s Manual,
inflate the tire to the recommended tire
inflation pressure given on the yellow label
on the spare wheel rim.
X Press 0 on electric air pump switch ;.
X Turn the SmartKey in the starter switch to
position 0.
or
X Vehicles with KEYLESS-GO: Press the
KEYLESS-GO start/stop button twice. Do
not depress the brake pedal.
X Version 1 only: If the tire inflation pressure
is above the recommended tire inflation pressure as specified for your vehicle
(Y page 296), decrease tire pressure using
the vent screw on air hose ?.
X Version 2 only: If the tire inflation pressure
is above the recommended tire inflation
pressure as specified for your vehicle
(Y page 296), decrease tire pressure using
deflate button B. G
Observe Safety notes, see page 185.
X Detach the electric air pump.
X Reinstall collapsible tire valve cap.
X Version 1 only: Store electrical plug =
and air hose ? behind flap :.
X Version 2 only: Store electrical plug =
and the air hose back into the pump
housing bottom.
X Place the electric air pump back in its
designated storage space.
X Lower the vehicle.
Lowering the vehicle G
Warning!
Vehicles with spare wheel with collapsible tire
only: Inflate collapsible tire only after the
wheel is properly attached.
Inflate the collapsible tire using the electric
air pump before lowering the vehicle.
X Lower the vehicle by turning the crank
counterclockwise until the vehicle is
resting fully on its own weight.
X Remove the jack. 276
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X
Tighten the five wheel bolts evenly,
following
the diagonal sequence illustrated
(: to A), until all bolts are tight. Observe
a tightening torque of 96 lb-ft (130 Nm). G
Warning!
Have the tightening torque checked after
changing a wheel. The wheels could come
loose if they are not tightened to a torque of
96 lb-ft (130 Nm).
X Fully collapse the jack, with handle folded
in (storage position), see

(Y page 225).
X Store the jack and the other vehicle tools
in the designated storage space.
X Wrap the damaged wheel in the protective
wrap

that comes with the spare wheel and
put the wheel in the trunk.
You can also place the damaged wheel
down into the spare wheel well. In this case,
you must store the luggage bowl in the
trunk.
For information on storing the spare wheel
after it has been replaced by a regular road
wheel, see

(Y page 226).
i Vehicles with TPMS or Advanced TPMS:
Do not restart the tire inflation pressure
monitor until a full size wheel/tire with
functioning sensor has been placed back
into service on the vehicle. MOExtended system
The MOExtended system allows you to
continue driving your vehicle even if there is
a total loss of pressure in one or more tires.
You

may only use the MOExtended system in
conjunction with the tire pressure loss
warning system ( Y page 186), the TPMS
(Y page 188), or the Advanced TPMS
(Y page 190).
The maximum distance in emergency mode
depends on the vehicle’s load. It is 50 miles
(80 km) if the vehicle is partially loaded and
18 miles (30 km) if the vehicle is fully loaded.
The point at which the maximum driving distance in emergency mode begins is when
the warning message appears in the
multifunction display indicating that there is
a loss of tire inflation pressure.
X
Do not exceed the maximum speed of
50 mph (80 km/h

). G
Warning!
In emergency mode, your vehicle’s driving
characteristics are diminished in such
situations as:
R driving around curves
R while braking
R while accelerating rapidly
Therefore,

your driving style must be adapted
accordingly. Avoid abrupt steering and driving
maneuvers, as well as driving over obstacles
(road curbs, potholes, or off-road areas). This
is especially important if the vehicle is heavily
loaded.
The emergency driving distance that can be
achieved greatly depends on the demands
placed on the vehicle. Depending on speed,
load, driving maneuvers, road conditions,
outside temperature, etc., the distance can be
significantly shorter or, if the vehicle is driven
cautiously, somewhat longer.
Do not continue driving in emergency mode if
R you notice knocking sounds
R the vehicle starts to shake
R smoke develops and you smell rubber
R ESP ®
is intervening continuously
R you notice tears on the tire sidewalls
After driving in emergency mode, you must
have the rims inspected by an authorized
Mercedes-Benz Center to check if they are
suitable for further use. The failed tire must
be replaced in any case.
When replacing individual or all tires on the
vehicle, make sure only tires marked with
“MOExtended” are mounted in the size
specified for your vehicle ( Y page 291). Flat tire
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is not covered by the Mercedes-Benz
Limited Warranty.
For information on driving with MOExtended
tires, see the “Practical hints” section
(Y page 277).
! Using tires other than those approved by
Mercedes-Benz can have detrimental
effects, such as
R poor handling characteristics
R increased noise
R increased fuel consumption
Moreover, tires and rims not approved by
Mercedes-Benz may, under load, exhibit
dimensional variations and different tire
deformation characteristics that could
cause them to come into contact with the
vehicle body or axle parts. Damage to the
tires or the vehicle may be the result.
i Further information on tires and rims is
available
at any authorized Mercedes-Benz
Center. The Tire and Loading Information
placard with the recommended tire
inflation pressures for cold tires is located
on the driver’s door B-pillar. Supplemental
tire inflation pressure information for
driving at high speeds or for vehicle loads
less than the maximum loaded vehicle
condition can be found on the tire inflation
pressure label. The tire inflation pressure
label is located on the inside of the fuel filler
flap. The tire inflation pressure should be
checked regularly and should only be
adjusted on cold tires. Follow tire
manufacturer’s maintenance
recommendation included with the vehicle.
For information on recommended tire
inflation pressure and supplemental tire
inflation pressure information for special
driving situations, see ( Y page 183). i
Please keep in mind that the vehicle must
be equipped
Rwith wheels of identical dimensions on
each axle (left and right)
R with tires of identical characteristics all
around, i.e. summer tires, winter tires,
all-season tires, or MOExtended tires etc.
i The following pages also list the approved
rim and tire sizes for equipping your vehicle
with winter tires. Winter tires are not
available as standard or optional factory
equipment, but can be purchased from an
authorized Mercedes-Benz Center.
Equipping your vehicle with winter tires
approved for your vehicle model may
require the purchase of rims of the
recommended size for use with these
winter tires. This depends on vehicle model
and the standard or optional factory-
equipped wheel rim/tire configuration on
your vehicle. For more information contact
an authorized Mercedes-Benz Center. 292
Rims and tires
Technical data
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Same size tires
! Winter tires on rims with different wheel offset front vs. rear cannot be rotated. CLS 550
18" wheels Rims (light alloy)
Wheel offset (front axle)
Wheel offset (rear axle)
8.5 J x 18 H2
1.10 in (28 mm)
0.71 in (18 mm)
Winter tires
20,21 245/40 R18 97V XL (Extra Load) M+S
i
or
245/40 R18 97V XL (Extra Load)
M+Si
MOExtended 22 CLS 550 (AMG Sport Package)
CLS 550 (Grand Edition)
CLS 63 AMG
18" wheels AMG rims (light alloy)
Wheel offset
8.5 J x 18 H2
0.98 in (25 mm)
Winter tires
20,21 245/40 R18 97V XL (Extra Load) M+S
i CLS 63 AMG (Performance Package)
19" wheels AMG rims (light alloy)
Wheel offset
8.5 J x 19 H2
0.98 in (25 mm)
Winter tires
20,21,23 245/35 R19 93V XL (Extra Load) M+S
i20
Radial-ply tires.
21 Not available as factory equipment.
22 Must

be used in conjunction with Tire Pressure Monitoring System (U.S. vehicles), tire pressure loss warning
system (Canada vehicles), or Advanced Tire Pressure Monitoring System (Canada vehicles) only.
23 Maximum permissible vehicle speed of 137 mph (220 km/h). Rims and tires
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Mixed size tires
CLS 550
18" wheels Front axle Rims (light alloy)
Wheel offset
8.5 J x 18 H2
1.10 in (28 mm)
Summer tires
24,25 245/40 R18 93Y MOExtended
Rear axle Rims (light alloy)
Wheel offset
9.5 J x 18 H2
1.30 in (33 mm)
Summer tires
24,25,26 275/35 R18 95Y MOExtended
CLS 550
27 18" wheels Front axle Rims (light alloy)
Wheel offset
8.5 J x 18 H2
1.10 in (28 mm)
All-season tires
24 245/40 R18 93V M+S
Rear axle Rims (light alloy)
Wheel offset
9.5 J x 18 H2
1.30 in (33 mm)
All-season tires
24,26 275/35 R18 95V M+S
CLS 550 (AMG Sport Package)
27
CLS 550 (Grand Edition) 18" wheels Front axle AMG rims (light alloy)
8.5 J x 18 H2
Wheel offset
0.98 in (25 mm)
Summer tires
24 255/40 ZR18 99Y XL (Extra Load)
Rear axle AMG rims (light alloy)
9.5 J x 18 H2
Wheel offset
1.10 in (28 mm)
Summer tires
24,26 285/35 ZR18 101Y XL
(Extra Load)
24
Radial-ply tires.
25 Must
be used in conjunction with Tire Pressure Monitoring System (U.S. vehicles), tire pressure loss warning
system (Canada vehicles), or Advanced Tire Pressure Monitoring System (Canada vehicles) only.
26 Must not be used with snow chains.
27 USA only. 294
Rims and tires
Technical data
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