Underinflation also reduces fuel efficiency
and tire tread life, and may affect the vehicle’s
handling and stopping ability. Please note that
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 thenremain 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
ProblemPossible causes/consequences and M SolutionsCanada only:
45
The front passenger
front air bag off
indicator lamp
illuminates and
remains illuminated
( Y page 47).A BabySmart TM
child seat is installed on the front passenger seat.
Therefore the front passenger front air bag is switched off.The system is malfunctioning when there is no BabySmart TM
child
seat installed on the front passenger seat.XHave the system checked as soon as possible at an authorized
Mercedes-Benz Center.Canada only:
45
The front passenger
front air bag off
indicator lamp does not
illuminate or does not
remain illuminated with
a BabySmart TM
child
seat properly installed
on the passenger seat.The system is malfunctioning.XMake sure there is nothing between seat cushion and child seat.XCheck installation of the child seat ( Y page 58).
If the front passenger front air bag off indicator lamp remains out:
XHave the system checked as soon as possible at an authorized
Mercedes-Benz Center.
Do not use the BabySmart TM
restraint to transport children on the
front passenger seat until the system has been repaired.
What to do if …313Practical hints212_AKB; 2; 41, en-USd2ureepe,Version: 2.11.8.12009-07-17T09:14:21+02:00 - Seite 313Z
Flat tire
Safety notes
Your vehicle may be equipped with:
R a Minispare wheel
R a spare wheel with collapsible tire
R an MOExtended system (your vehicle does
not have a spare wheel or a TIREFIT kit)
R a TIREFIT kit 19
(your vehicle does not have
a spare wheel)
GWarning!
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 ESC when a spare wheel
is mounted.
Preparing the vehicle
XVehicles with AIRMATIC:
Make sure the vehicle level is set to normal
level ( Y page 163).XWhenever possible, park the vehicle in a
safe distance from moving traffic on a hard,
flat surface.XTurn on the hazard warning flasher.XTurn the steering wheel so that the front
wheels are in a straight-ahead position.XEngage the parking brake.XShift the automatic transmission into park
position P.XTurn off the engine.XRemove the SmartKey from the starter
switch.
or
XVehicles 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.
Open doors only when conditions are safe
to do so.XVehicles with KEYLESS-GO: Remove the
KEYLESS-GO start/stop button from the
starter switch.XHave any passenger exit the vehicle at a
safe distance from the roadway. Open
doors only when conditions are safe to do
so.
Mounting the spare wheel
Introduction
XPrepare the vehicle as described
( Y page 323).XTake the following out of the vehicle:
R spare wheel
R jack
R vehicle tool kit
R collapsible wheel chock
R electric air pump (required for vehicles
with spare wheel with collapsible tire
only)
For information on where to find the
respective items, see “Where will I find ...?”
( Y page 268) and ( Y page 271).
19
Canada only.Flat tire323Practical hints212_AKB; 2; 41, en-USd2ureepe,Version: 2.11.8.12009-07-17T09:14:21+02:00 - Seite 323Z
iVehicles without spare wheel are not
factory-equipped with the tools required for
a wheel change such as a jack or a wheel
wrench. Some tools required for a wheel
change are specific to your vehicle.
Contact an authorized Mercedes-Benz
Center to obtain the tools approved for
your vehicle. This section describes the
wheel change using the tools approved and
recommended for your vehicle.
Lifting the vehicleGWarning!
When jacking up the vehicle, only use the jack
which has been specifically approved by
Mercedes-Benz for your vehicle.
The jack is designed exclusively for jacking up
the vehicle at the jack take-up brackets built
into both sides of the vehicle. Make sure the
jack arm is fully seated in the jack take-up
bracket. The jack must always be vertical
when in use, especially on inclines or
declines.
The jack is intended only for lifting the vehicle
briefly for wheel changes. It is not suited for
performing maintenance work under the
vehicle. To help avoid personal injury, use the
jack only to lift the vehicle during a wheel
change.
Never get beneath the vehicle while it is
supported by the jack. Keep hands and feet
away from the area under the lifted vehicle.
Always lower the vehicle onto sufficient
capacity jackstands before working under the
vehicle.
Always engage the parking brake firmly and
block the wheels with wheel chocks or other
sizeable objects before raising the vehicle
with the jack. Do not disengage the parking
brake while the vehicle is raised.
Make sure that the ground on which the
vehicle is standing and where you place the
jack is solid, level and not slippery. If
necessary, use a large underlay. On slippery
surfaces, such as tiled floors, you should use
a non-slip underlay, for example a rubber mat.
Do not use wooden blocks or similar objects
to support the jack. Otherwise the jack may
not be able to achieve its load-bearing
capacity if it is not at its full height.
Never start the engine when the vehicle is
raised.
Also observe the notes on the jack.XPrevent the vehicle from rolling away by
blocking wheels with wheel chocks or other
sizeable objects.
When your vehicle is equipped with a wheel
chock, it is included with the vehicle tool kit
( Y page 268). For information on setting up
the collapsible wheel chock, see
( Y page 270).
When changing a wheel on a level surface:
XPlace a wheel chock or other sizeable
object in front of and another wheel chock
or other sizeable object behind the wheel
that is diagonally opposite to the wheel
being changed.
Always try lifting the vehicle using the jack on
a level surface. However, should
circumstances require you to do so on a hill:
XPlace wheel chocks or other sizeable
objects on the downhill side in front of both
wheels on the side opposite to the side on
which the wheel is to be changed.GWarning!
Only jack up the vehicle on level ground or on
slight inclines/declines. Otherwise, the
vehicle could fall off the jack and injure you or
others.
324Flat tirePractical hints
212_AKB; 2; 41, en-USd2ureepe,Version: 2.11.8.12009-07-17T09:14:21+02:00 - Seite 324
XOn the wheel to be changed, loosen but do
not yet remove the wheel bolts
(approximately one full turn with wheel
wrench :).
The jack take-up brackets are located directly
behind the front wheel housings and in front
of the rear wheel housings.
E 63 AMG and vehicles with AMG
bodystyling: The respective cover in the
door-sill trim must be removed to access the
jack take-up brackets.
Example illustration: Vehicles with AMGbodystyling
XE 63 AMG and vehicles with AMG
bodystyling: Remove cover ; in direction
of arrow.
GWarning!
The jack is designed exclusively for jacking up
the vehicle at the jack take-up brackets. Make
sure the jack arm is fully seated in the jack
take-up bracket.
If you do not position the jack correctly in the
jack take-up bracket, the vehicle can fall off
the jack and seriously or fatally injure you or
others.
! Do not position the jack on the body of
the vehicle, as this may cause damage to
the vehicle.
XPlace jack ? on firm ground.XPosition jack ? under take-up bracket
= so that it is always vertical as seen from
the side, even if the vehicle is parked on an
incline.
XTurn crank A clockwise until jack ? is
fully seated in take-up bracket = and the
jack base evenly meets the ground.
XJack up the vehicle until the wheel is a
maximum of 1.2 in (3 cm) from the ground.
Flat tire325Practical hints212_AKB; 2; 41, en-USd2ureepe,Version: 2.11.8.12009-07-17T09:14:21+02:00 - Seite 325Z
Removing the wheel
! E 63 AMG with ceramic composite
brake disk: The rim could strike the
ceramic composite brake disk when
removing and attaching the spare wheel.
The ceramic composite brake disk could be
damaged. Exercise appropriate care and
have a second person assist you if possible
or use a second alignment bolt.
XUnscrew the uppermost wheel bolt and
remove it.
XReplace this wheel bolt with alignment
bolt :.
XRemove the remaining bolts.
! Do not place wheel bolts in sand or dirt.
This could result in damage to the wheel
bolts and wheel hub threads.
XRemove the wheel.
Attaching the spare wheel
GWarning!
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.
GWarning!
Always replace wheel bolts that are damaged
or rusted.
Never apply oil or grease to wheel bolts.
Damaged wheel hub threads should be
repaired immediately. Do not continue to
drive under these circumstances! Contact an
authorized Mercedes-Benz Center or call
Roadside Assistance.
Incorrect wheel bolts or improperly tightened
wheel bolts can cause the wheel to come off.
This could cause an accident. Make sure to
use the correct wheel bolts.
GWarning!
Only use genuine Mercedes-Benz wheel bolts.
Other wheel bolts may come loose.
Do not tighten the wheel bolts when the
vehicle is raised. Otherwise the vehicle could
fall off the jack.
XClean contact surfaces of wheel and wheel
hub.
! To avoid paint damage, place wheel flat
against hub and hold it there while
installing first wheel bolt.
! E 63 AMG with ceramic composite
brake disk: The rim could strike the
ceramic composite brake disk when
removing and attaching the spare wheel.
The ceramic composite brake disk could be
damaged. Exercise appropriate care and
have a second person assist you if possible
or use a second alignment bolt.
Example illustration: All models except E 63 AMG.
326Flat tirePractical hints
212_AKB; 2; 41, en-USd2ureepe,Version: 2.11.8.12009-07-17T09:14:21+02:00 - Seite 326
XGuide the spare wheel onto the alignment
bolt and push it on.
XInsert the wheel bolts and tighten them
slightly.
XUnscrew the alignment bolt.XInstall the last wheel bolt and tighten it
slightly.
XVehicles with spare wheel with
collapsible tire: Continue the procedure
by following the instructions under
“Inflating the collapsible tire”
(Y page 327) and then “Lowering the
vehicle” (Y page 328).
or
XVehicles with Minispare wheel: Continue
the procedure by following the instructions
under “Lowering the vehicle”
(Y page 328).
Inflating the collapsible tire
GWarning!
Inflate collapsible tire only after the wheel is
properly attached.
Inflate the collapsible tire using the electric
air pump before lowering the vehicle.
GWarning!
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:
RVersion 1: The air hose with pressure
gauge and the electrical plug are located
behind a flap.
RVersion 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
XVersion 1 only: Open flap : on electric
air pump.
XVersion 1 only: Pull out electrical plug
= and air hose with pressure gauge and
vent screw ?.
XVersion 2 only: Pull electrical plug = and
the air hose out of the pump housing
bottom.
XVersion 1 only: Close vent screw on air
hose ?.
XRemove the valve cap from the collapsible
tire valve.
XScrew union nut A onto the collapsible tire
valve.
XMake sure air pump switch ; is set to 0.XInsert electrical plug = into the cigarette
lighter socket (Y page 206) or a power
outlet (Y page 207).
Flat tire327Practical hints212_AKB; 2; 41, en-USd2ureepe,Version: 2.11.8.12009-07-17T09:14:21+02:00 - Seite 327Z
XTurn the SmartKey in the starter switch to
position 1.
or
XVehicles with KEYLESS-GO: Press the
KEYLESS-GO start/stop button once. Do
not depress the brake pedal.
XPress I on electric air pump switch ;.
The electric air pump switches on and
inflates the collapsible tire.
XInflate the collapsible tire to the
recommended tire inflation pressure as
specified for your vehicle (Y page 358).
This should take approximately 5 minutes.
GWarning!
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.
XPress 0 on electric air pump switch ;.XTurn the SmartKey in the starter switch to
position 0.
or
XVehicles with KEYLESS-GO: Press the
KEYLESS-GO start/stop button twice. Do
not depress the brake pedal.
XVersion 1 only: If the tire inflation pressure
is above the recommended tire inflation
pressure as specified for your vehicle
(Y page 358), decrease tire pressure using
the vent screw on air hose ?.
XVersion 2 only: If the tire inflation pressure
is above the recommended tire inflation
pressure as specified for your vehicle
(Y page 358), decrease tire pressure using
deflate button B.
GObserve Safety notes, see page 231.XDetach the electric air pump.XReinstall collapsible tire valve cap.XVersion 1 only: Store electrical plug =
and air hose ? behind flap :.
XVersion 2 only: Store electrical plug =
and the air hose back into the pump
housing bottom.
XPlace the electric air pump back in its
designated storage space.
XLower the vehicle.
Lowering the vehicle
XLower the vehicle by turning the crank
counterclockwise until the vehicle is
resting fully on its own weight.
XRemove the jack.XTighten 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).
328Flat tirePractical hints
212_AKB; 2; 41, en-USd2ureepe,Version: 2.11.8.12009-07-17T09:14:21+02:00 - Seite 328
GWarning!
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).
XFully collapse the jack, with handle folded
in (storage position), see ( Y page 270).XStore the jack and the other vehicle tools
in the designated storage space.XE 63 AMG and vehicles with AMG
bodystyling: Reinstall the respective
cover of the door-sill trim.
i Vehicles with Advanced TPMS:
Do not restart the Advanced TPMS until a
full size wheel/tire with functioning sensor
has been placed back into service on the
vehicle.
XDo not exceed the maximum speed of
50 mph (80 km/h).
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 232) or the
Advanced TPMS ( Y page 233).
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.
XDo not exceed the maximum speed of
50 mph (80 km/h).GWarning!
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 ESC 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 353).
Sealing tires with TIREFIT
This section applies to vehicles that are
factory equipped 20
or retrofitted with a
TIREFIT kit only.
20 Canada only.Flat tire329Practical hints212_AKB; 2; 41, en-USd2ureepe,Version: 2.11.8.12009-07-17T09:14:21+02:00 - Seite 329Z