Vehicle equipment ............................268
Where will I find ...? ..........................268
Vehicle status messages in the
multifunction display .......................272
What to do if … ..................................297
Unlocking/locking manually ...........306
Resetting activated NECK-PRO
active front head restraints .............309
Replacing SmartKey batteries .........309
Replacing bulbs .................................311
Replacing wiper blades ....................318
Flat tire ..............................................319
Bleeding the fuel system (diesel
engine only) .......................................331
AdBlue® (diesel engine only) ...........331
Battery ...............................................334
Jump starting ....................................336
Towing the vehicle ............................338
Fuses ..................................................342
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Storage position
XTake the reversible ratchet from the vehicle
tool kit (Y page 268).
Operational position
XAttach reversible ratchet ; to jack : in
such a way that the word UP can be seen.
Before placing the jack and the reversible
ratchet back into the vehicle tool kit:
XFully collapse the jack (storage position).XRemove the reversible ratchet.
Spare wheel
GObserve Safety notes, see page 319.
iUSA only:
The ML 350 BlueTEC 4MATIC does not have
a spare wheel.
iCanada only:
The ML 350 BlueTEC 4MATIC does not have
a spare wheel. ML 350 BlueTEC 4MATIC
vehicles that are factory equipped with 20''
wheels come with TIREFIT.
The spare wheel is located in the space
underneath the cargo compartment floor.
XRemoving: Open the tailgate (Y page 75).XLift the cargo compartment floor and
secure it on the upper cargo compartment
lip (Y page 268).
! To prevent damage, always disengage the
securing hook from upper cargo
compartment lip and lower the cargo
compartment floor before closing the
tailgate.
XRemove the storage well casing (if so
equipped) (Y page 270).
Example illustration
XRemove retaining screw : by turning it
counterclockwise.
XRemove spare wheel ;.
For information on mounting the spare wheel,
see “Flat tire” (Y page 319).
Storing the spare wheel after use
XPlace spare wheel ; into the spare wheel
well (Y page 271).
XSecure spare wheel ; by turning retaining
screw : clockwise (Y page 271).
XPlace the storage well casing (if so
equipped) into the spare wheel
(Y page 270).
Where will I find ...?271Practical hints164_AKB; 7; 31, en-USd2ureepe,Version: 2.11.8.12009-09-11T12:07:36+02:00 - Seite 271Z
TiresDisplay messagesPossible causes/consequences and M SolutionsCheck
tires,then
restart
Run Flat
Indicator.There has been a warning message about a loss in the tire
inflation pressure and the tire pressure loss warning system
was not restarted yet.XMake sure the correct tire inflation pressure is set for each
tire.XThen restart the tire pressure loss warning system
( Y page 222).Run Flat
IndicatorInoperativ
eThe tire pressure loss warning system is malfunctioning.XHave the tire pressure loss warning system checked at an
authorized Mercedes-Benz Center.Tire
PressureCheck
TiresThe tire pressure loss warning system indicates that the tire
inflation pressure is too low in at least one tire.XCarefully bring the vehicle to a halt, avoiding abrupt
steering and braking maneuvers. Observe the traffic
situation around you.XCheck the tires and, if necessary, change the wheel
( Y page 319).XCheck and adjust tire inflation pressure as required
( Y page 221).XRestart the tire pressure loss warning system after
adjusting the tire inflation pressure values ( Y page 222).Tire
pressure
displayed
afterdriving
for a few
minutes.The tire inflation pressure is being checked by the Advanced
TPMS.XDrive the vehicle for a few minutes.Tire
Pressure
MonitorInoperativ
eThe Advanced TPMS is malfunctioning.XHave the Advanced TPMS checked at an authorized
Mercedes-Benz Center.Tire
Pressure
MonitorInoperativ
e No
Wheel
SensorsThere are wheels without appropriate wheel sensors mounted
(e.g. winter tires).XHave the Advanced TPMS checked at an authorized
Mercedes-Benz Center.XHave the appropriate wheel sensors installed at an
authorized Mercedes-Benz Center.Vehicle status messages in the multifunction display281Practical hints164_AKB; 7; 31, en-USd2ureepe,Version: 2.11.8.12009-09-11T12:07:36+02:00 - Seite 281Z
Display messagesPossible causes/consequences and M SolutionsTire
Pressure
MonitorWheel
Sensor
MissingAt least one sensor is defect (e.g. battery is empty).
The respective tire is indicated by – – instead of the tire
inflation pressure in the multifunction display.XHave the Advanced TPMS checked at an authorized
Mercedes-Benz Center.XHave the wheel sensors installed at an authorized
Mercedes-Benz Center.At least one wheel without appropriate wheel sensors is
mounted (e.g. spare tire).
The respective tire is indicated by – – instead of the tire
inflation pressure in the multifunction display.XHave the Advanced TPMS checked at an authorized
Mercedes-Benz Center.XHave the wheel sensors installed at an authorized
Mercedes-Benz Center.Tire
Pressure
MonitorCurrently
Unavailabl
eThe Advanced TPMS cannot monitor the tire inflation pressure
due to a nearby radio interference source or insufficient
power supply.
As soon as the causes of the malfunction have been rectified,
the Advanced TPMS becomes active again automatically after
a few minutes of driving.Tire
Pressure(s
) Please
CorrectThe tire inflation pressure is too low in at least one tire.
or
The tire inflation pressures of the individual tires differ from
each other significantly.
The tire inflation pressure values are shown in the
multifunction display.XCheck and correct tire inflation pressure as required
( Y page 221).XRestart the Advanced TMPS ( Y page 226).Caution:
Tire
DefectAt least one tire is deflating.
The respective tire is indicated in the multifunction display.XCarefully bring the vehicle to a halt, avoiding abrupt
steering and braking maneuvers.XIf necessary, change the wheel ( Y page 319).282Vehicle status messages in the multifunction displayPractical hints
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Display messagesPossible causes/consequences and M SolutionsCheck
Tire(s)The 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 319).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.
Symbol messages
Brake
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.
Vehicle status messages in the multifunction display283Practical hints164_AKB; 7; 31, en-USd2ureepe,Version: 2.11.8.12009-09-11T12:07:36+02:00 - Seite 283Z
Display messagesPossible causes/consequences and M SolutionsbTurn
Signal
Rear Left
or
Turn
Signal
Rear RightThe left or right rear turn signal lamp is malfunctioning. A
substitute bulb is being used.XRear lamps with bulbs: Replace the bulb as soon as
possible ( Y page 311).XRear lamps with LEDs: Contact an authorized Mercedes-
Benz Center as soon as possible.bTurn
Signal
Front Left
or
Turn
Signal
Front
RightThe left or right front turn signal lamp is malfunctioning. A
substitute bulb is being used.XReplace the bulb as soon as possible ( Y page 311).bTurn
Signal
Left
Mirror
or
Turn
Signal
Right
MirrorThe turn signal in the left or right exterior rear view mirror is
malfunctioning. This message will only appear if all LEDs have
stopped working.XContact an authorized Mercedes-Benz Center as soon as
possible.
Tires
Display messagesPossible causes/consequences and M SolutionshTire
pressure(s
) Please
CorrectThe tire inflation pressure is too low in at least one tire.
or
The tire inflation pressure of the individual tires differ from
each other significantly.XCheck and correct tire inflation pressure as required
( Y page 221).hTire
Pressure
Caution:
Tire
DefectAt least one tire is deflating.XCarefully bring the vehicle to a halt, avoiding abrupt
steering and braking maneuvers.XIf necessary, change the wheel ( Y page 319).296Vehicle status messages in the multifunction displayPractical hints
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Display messagesPossible causes/consequences and M SolutionshTire
Pressure
Check
TiresThe tire inflation pressure in at least one tire is significantly
below the reference value.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 319).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.
What to do if …
Lamps in instrument cluster
Notes
If any of the following lamps in the instrument
cluster fails to come on during the bulb self-
check when switching on the ignition, have
the respective bulb checked and replaced if
necessary.
When you switch on the ignition, all lamps
(except low-beam headlamp indicator lamp,
high-beam headlamp indicator lamp, and turn
signal indicator lamps unless activated) in the
instrument cluster come on. If a lamp in the
instrument cluster fails to come on when the
ignition is switched on, have it checked and
replaced if necessary.What to do if …297Practical hints164_AKB; 7; 31, en-USd2ureepe,Version: 2.11.8.12009-09-11T12:07:36+02:00 - Seite 297Z
TiresProblemPossible causes/consequences and M SolutionshUSA only:
Combination
low tire pressure
telltale/TPMS
malfunction
telltale for the
Advanced TPMS
illuminates
continuously.The Advanced TPMS detects a loss of pressure in at least one tire.XCarefully bring the vehicle to a halt, avoiding abrupt steering and
braking maneuvers. Observe the traffic situation around you.XRead and observe messages in the multifunction display
( Y page 272).
If the tire inflation pressure in the respective tire(s) has (have) been
corrected, the combination low tire pressure/TPMS malfunction
telltale goes out after a few minutes of driving.
hUSA only:
Combination
low tire pressure
telltale/TPMS
malfunction
telltale for the
Advanced TPMS
flashes 60
seconds and
then stays
illuminated.There is a malfunction in the Advanced TPMS.XRead and observe messages in the multifunction display
( Y page 272).XHave the Advanced TPMS checked at an authorized Mercedes-
Benz Center.
After the malfunction has been remedied, the combination low tire
pressure/TPMS malfunction telltale goes out after a few minutes
of driving.
GWarning!
Each tire, including the spare (if provided),
should be checked at least once a month
when cold and inflated to the inflation
pressure recommended by the vehicle
manufacturer on the Tire and Loading
Information placard on the driver’s door B-
pillar or the tire inflation pressure label on the
inside of the fuel filler flap. If your vehicle has
tires of a different size than the size indicated
on the Tire and Loading Information placard
or the tire inflation pressure label, you should
determine the proper tire inflation pressure
for those tires.
As an added safety feature, your vehicle has
been equipped with a tire pressure monitoring
system (TPMS) that illuminates a low tire
pressure telltale when one or more of your
tires are significantly underinflated.
Accordingly, when the low tire pressure
telltale illuminates, you should stop and check
your tires as soon as possible, and inflate
them to the proper pressure. Driving on a
significantly underinflated tire causes the tire
to overheat and can lead to tire failure.
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.
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. This304What to do if …Practical hints
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