XTo access jack and wheel wrench:
Remove storage well casing =.
XRemove the spare wheel (Y page 225).AJackBWheel wrench
Jack
GWarning!
Only use the jack supplied with your vehicle
to lift the vehicle briefly for wheel changes. If
you use the jack for any other purpose, you or
others could be injured, as the jack is
designed only for the purpose of changing a
wheel.
When using the jack, observe the safety notes
in the “Mounting the spare wheel” section and
the notes on the jack.
Spare wheel
GObserve Safety notes, see page 276.
The spare wheel is located in the space
underneath the trunk floor.
XRemoving: Open the trunk (Y page 73).XLift the trunk floor.XRemove the storage well casing
(Y page 224).:Spare wheel;Tensioning strap18=Retaining screw?Storage well casing baseXRemove storage well casing base ?.XRemove retaining screw = by turning it
counterclockwise.
XRemove spare wheel :.
For information on mounting the spare wheel,
see “Flat tire” (Y page 276).
Storing the spare wheel after use
If you wish to store the spare wheel after use,
carry out the following steps. Otherwise, the
spare wheel may not fit into the spare wheel
well.
! Make sure the spare wheel is dry before
storing it.
XUnscrew the valve cap from the valve of the
collapsible tire.
XUnscrew the valve insert from the valve
using the valve extractor integrated in the
valve cap.
XAllow the air to escape.
iIt may take a few minutes for the
collapsible tire to deflate completely.
XUse the valve extractor integrated in the
valve cap to screw the valve insert back into
the valve.
18Vehicles with 19" spare wheel only.Where will I find ...?225Practical hints230_AKB; 6; 22, en-USd2ureepe,Version: 2.11.8.12009-07-28T18:49:58+02:00 - Seite 225Z
XScrew the valve cap back onto the valve.
iVehicles with 19" spare wheel only:
Before placing the spare wheel in the spare
wheel well fasten tensioning straps, see
“Compressing the collapsible tire”
(Y page 226).
XPlace the spare wheel into the spare wheel
well.
XSecure the spare wheel by turning retaining
screw = clockwise.
Compressing the collapsible tire
This description applies to vehicles with
19" spare wheel only.
The collapsible tire on a 19" spare wheel must
be compressed with two tensioning straps
before you can store it in the spare wheel well.
XExtend the tensioning strap by pulling the
slider.
XPlace tensioning strap around the spare
wheel rim and collapsible tire with the
buckle facing the inside of the rim.
XClose the buckle.XPull the loose end of the tensioning strap.
The tensioning strap must be pulled as tight
as possible.
Vehicle status messages in the
multifunction display
Notes
Warning and malfunction messages appear in
the multifunction display located in the
instrument cluster.
Certain warning and malfunction messages
are accompanied by an audible signal.
Address these messages accordingly and
follow the additional instructions given in this
Operator’s Manual.
Selecting the Vehicle status message
memory menu in the control system
(Y page 120) displays both cleared and
uncleared messages.
High-priority messages appear in the
multifunction display in red color.
Certain messages of high priority cannot be
cleared from the multifunction display using
the reset button (Y page 112) or button
&, *, U or V on the
multifunction steering wheel.
Other messages of high priority and
messages of less immediate priority can be
cleared from the multifunction display using
the reset button or button &, *,
U or V on the multifunction steering
wheel. They are then stored in the Vehicle
status message memory menu
(Y page 120). Remember that clearing a
message will only make the message
disappear. Clearing a message will not
correct the condition that caused the
message to appear.
GWarning!
All categories of messages contain important
information which should be taken note of
and, where a malfunction is indicated,
addressed as soon as possible at an
authorized Mercedes-Benz Center.
Failure to repair the condition noted may
cause damage not covered by the Mercedes-
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Benz Limited Warranty, or result in property
damage or personal injury.GWarning!
No messages will be displayed if either the
instrument cluster or the multifunction
display is inoperative.
As a result, you will not be able to see
information about your driving conditions,
such as
R speed
R outside temperature
R warning/indicator lamps
Rmalfunction/warning messages
R failure of any systems
Driving characteristics may be impaired.
If you must continue to drive, do so with added
caution. Contact an authorized Mercedes-
Benz Center as soon as possible.
On the pages that follow, you will find a
compilation of the most important warning
and malfunction messages that may appear.
For your convenience the messages are
divided into text messages ( Y page 227) and
symbol messages ( Y page 237).
Text messages
Safety systems
Display messagesPossible causes/consequences and M SolutionsABSABS, ESP
Inoperativ
e
See Oper.
Manual.The electro-hydraulic brake system is still functioning
normally but due to a malfunction, the ABS, the BAS, the
ESP ®
, and the hill-start assist system (SL 63 AMG only) are
unavailable.XContinue driving with added caution. Wheels may lock
during hard braking, reducing steering capability.XHave the system checked at an authorized Mercedes-Benz
Center as soon as possible.
Failure to follow these instructions increases the risk of an
accident.
ABSABS, ESP
Unavailabl
e
See Oper.
ManualThe self-diagnosis may not be completed yet.
The display will clear after driving a short distance at a vehicle
speed of above 12 mph (20 km/h).Vehicle status messages in the multifunction display227Practical hints230_AKB; 6; 22, en-USd2ureepe,Version: 2.11.8.12009-07-28T18:49:58+02:00 - Seite 227Z
GWarning!
If the 45 indicator lamp remains out even after performing the above corrective steps,
do not have any children 12 years old and under and other small individuals use the passenger
seat until the system has been repaired.
Display messagesPossible causes/consequences and M SolutionsFront
Passeng.
Airbag Disabled
See Oper.
ManualThe passenger front air bag is deactivated while driving even
though an adult or someone larger than a small individual is
occupying the passenger seat. Forces acting on the seat may
make the system sense a decrease in weight.XStop the vehicle in a safe location as soon as possible.XEngage the parking brake.XSwitch off the ignition.XHave the passenger vacate the seat and exit the vehicle.XKeep the seat unoccupied, close the passenger door and
switch on the ignition.
Monitor the 45 indicator lamp ( Y page 45) and the
multifunction display in the instrument cluster (Y page 30) for
the following:
With the seat unoccupied and the ignition switched on,
R the 45 indicator lamp should illuminate and remain
illuminated, indicating that the OCS ( Y page 43) has
deactivated the passenger front air bag.
R the message Front Passeng. Airbag Enabled See
Oper. Manual or the message Front Passeng. Airbag
Disabled See Oper. Manual should not appear in the
multifunction display at any time the seat is unoccupied.
Wait at least 60 seconds for the system to complete the
necessary check cycles and to make sure neither message
appears in the multifunction display.
If above conditions are met, you can occupy the passenger
seat again. Depending on the passenger classification sensed
by the OCS, the 45 indicator lamp will remain
illuminated or go out.
If above conditions are not met, the system is not working
properly. Have the system checked at an authorized
Mercedes-Benz Center as soon as possible.
GWarning!
If the 45 indicator lamp remains illuminated with an adult occupant on the passenger
seat even after performing the above corrective steps, do not have any passenger use the
passenger seat until the system has been repaired.
230Vehicle status messages in the multifunction displayPractical hints
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Display messagesPossible causes/consequences and M SolutionsCheck
TiresThe tire inflation pressure in at least one tire is significantly
below the reference value.
The respective tire is indicated in the multifunction display.XCarefully bring the vehicle to a halt, avoiding abrupt
steering and braking maneuvers.XCheck and adjust tire inflation pressure as required.XIf necessary, change the wheel ( Y page 276).GWarning!
Do not drive with a flat tire. A flat tire affects the ability to steer or brake the vehicle. You may
lose control of the vehicle. Continued driving with a flat tire will cause excessive heat build-up
and possibly a fire.
GWarning!
Follow recommended tire inflation pressures.
Do not underinflate tires. Underinflated tires wear excessively and/or unevenly, adversely affect
handling and fuel economy, and are more likely to fail from being overheated.
Do not overinflate tires. Overinflated tires can adversely affect handling and ride comfort, wear
unevenly, increase stopping distance, and result in sudden deflation (blowout) because they are
more likely to become punctured or damaged by road debris, potholes etc.
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Symbol messages
BrakeDisplay messagesPossible causes/consequences and M Solutions#Reduced
Brake
Effect
Depress
brake
pedal
fully.The electro-hydraulic brake system is in emergency operation
mode. Considerably greater brake pedal force is required and
the brake pedal travel is longer. The stopping distance is
increased.
The maximum speed is limited to 55 mph (90 km/h).XStop the vehicle in a safe location or as soon as it is safe
to do so.XEngage the parking brake.XDo not drive any further.XPrevent the vehicle from rolling away by blocking the
wheels with wheel chocks or other sizeable objects.XContact an authorized Mercedes-Benz Center or call
Roadside Assistance.$
(USA only)
J
(Canada
only)Reduced
Brake
Effect
Service
RequiredThe electro-hydraulic brake system is in emergency operation
mode. Considerably greater brake pedal force is required and
the brake pedal travel is longer. The stopping distance is
increased.XStop the vehicle in a safe location or as soon as it is safe
to do so.XEngage the parking brake.XDo not drive any further.XPrevent the vehicle from rolling away by blocking the
wheels with wheel chocks or other sizeable objects.XContact an authorized Mercedes-Benz Center or call
Roadside Assistance.GWarning!
Driving while one of the previous messages is
displayed can result in an accident. Have your
brake system checked immediately.
If the electro-hydraulic brake system enters
its emergency operation mode, the driver
must apply significantly greater brake pedal
pressure and depress the pedal much further
than normal to obtain braking effect.
If necessary, apply full pressure to the brake
pedal. Brakes are only applied to the front
wheels. Stopping distance is increased!
If there is a malfunction in the electro-
hydraulic brake system, we recommend that
the vehicle be transported with all wheels off
the ground using flatbed or appropriate wheel
lift/dolly equipment.
A tow bar must be used if circumstances do
not permit the use of the recommendedVehicle status messages in the multifunction display237Practical hints230_AKB; 6; 22, en-USd2ureepe,Version: 2.11.8.12009-07-28T18:49:58+02:00 - Seite 237Z
towing methods and the vehicle requires
towing with all four wheels on the ground.
Towing the vehicle with all four wheels on the
ground is only permissible for distances up to30 miles (50 km) and at a speed not to exceed
30 mph (50 km/h). For more information, see
“Towing the vehicle”.Display messagesPossible causes/consequences and M Solutions$
(USA only)
J
(Canada
only)Reduced
Brake
Effect
Start
EngineThe battery has insufficient voltage and cannot supply
sufficient power to the electro-hydraulic brake system.XStart the engine.
The message disappears when sufficient voltage is
available.GWarning!
Inhalation of exhaust gas is hazardous to your
health. All exhaust gas contains carbon
monoxide (CO), and inhaling it can cause
unconsciousness and lead to death. Do not
run the engine in confined areas (such as a
garage) which are not properly ventilated.Display messagesPossible causes/consequences and M Solutions#Brake WearThe brake pads have reached their wear limit.XHave the brake pads replaced as soon as possible.
!
Brake pad thickness must be visually inspected by a qualified technician at the intervals
specified in the Maintenance Booklet.
GWarning!
Have brake pad replacement and other work
on the electro-hydraulic brake system carried
out by qualified technicians only. Contact an
authorized Mercedes-Benz Center for further
information.
The electro-hydraulic brake system must be
deactivated prior to working on the system.
High pressure is intermittently built up in the
system as part of its automatic self-test.
In addition, the system is automatically
activated when the vehicle is unlocked by
remote control, when the driver or passenger
door is opened, when the SmartKey in the
starter switch is turned to position 1 or the
KEYLESS-GO start/stop button is pressed
once, when the brake pedal is depressed or
when the parking brake is released. Failure to
deactivate the system prior to maintenance
will cause brake pistons to extend and brake
fluid to leak, which may result in injuries
(contusions and acid burns). Extended brake
pistons may also cause injury.238Vehicle status messages in the multifunction displayPractical hints
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Display messagesPossible causes/consequences and M Solutions$
(USA only)
J
(Canada
only)Check
Brake
Fluid
LevelThere is insufficient brake fluid in the reservoir.
Risk of accident!XStop the vehicle in a safe location or as soon as it is safe
to do so.XDo not drive any further.XContact an authorized Mercedes-Benz Center or call
Roadside Assistance.
Do not add brake fluid! This will not solve the problem.
GWarning!
Driving with the message Check Brake
Fluid Level displayed can result in an
accident. Have your brake system checked
immediately.
Do not add brake fluid before checking the
brake system. Overfilling the brake fluid
reservoir can result in spilling brake fluid on
hot engine parts and the brake fluid catching
fire. You can be seriously burned.
! If you find that the brake fluid in the brake
fluid reservoir has fallen to the minimum
mark or below, have the brake system
checked for brake pad thickness and leaks.Display messagesPossible causes/consequences and M Solutions$
(USA only)
J
(Canada
only)Brake
Service
RequiredThere are malfunctions, but the electro-hydraulic brake
system is operating normally.XContact an authorized Mercedes-Benz Center as soon as
possible.$
(USA only)
J
(Canada
only)Brakes
Overheated
Drive
on, but
with even
greater
care.The brake system is overheated due to an excessive load on
the brakes.
Relieve the load on the brake system:XDrive more smoothly and think ahead to avoid unnecessary
braking.XWhen driving down steep grades, shift into a lower gear to
use the engine’s braking power ( Y page 108).XCautiously continue driving so that the air stream will cool
down the brakes.$
(USA only)
!
(Canada
only)Release
Parking
BrakeYou are driving with the parking brake engaged.XRelease the parking brake.Vehicle status messages in the multifunction display239Practical hints230_AKB; 6; 22, en-USd2ureepe,Version: 2.11.8.12009-07-28T18:49:58+02:00 - Seite 239Z