Display messages
Possible causes/consequences and
X SolutionsTire
Pressure Check
tires The tire pressure loss warning system indicates that the tire
inflation pressure is too low in at least one tire.
X
Carefully bring the vehicle to a halt, avoiding abrupt
steering and braking maneuvers. Observe the traffic
situation around you.
X Check the tires and, if necessary, change the wheel
(Y page 271).
X Check and adjust tire inflation pressure as required
(Y page 185).
X Restart the tire pressure loss warning system after
adjusting the tire inflation pressure values
(Y page 186). Tire
pressure is only
displayed
after
driving
for a few
minutes. Vehicles with Advanced TPMS (Canada only): The tire inflation
pressure is being checked.
X
Drive the vehicle for a few minutes. Tire
Pressure
Monitor Inoperativ
e The TPMS (USA only) or Advanced TPMS (Canada only) is
malfunctioning.
X
Have the TPMS or Advanced TPMS checked at an
authorized Mercedes-Benz Center. Tire
Pressure
Monitor Inoperativ
e No
Wheel
Sensors There are wheels without appropriate wheel sensors mounted
(e.g. winter tires).
X
Have the TPMS or Advanced TPMS checked at an
authorized Mercedes-Benz Center.
X Have the appropriate wheel sensors installed at an
authorized Mercedes-Benz Center. 236
Vehicle status messages in the multifunction display
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Display messages
Possible causes/consequences and
X SolutionsTire
Pres.
Monitor Wheel
Sensor
Missing Vehicles with Advanced TPMS (Canada only):
At 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.
X Have the Advanced TPMS checked at an authorized
Mercedes-Benz Center.
X Have the wheel sensors installed at an authorized
Mercedes-Benz Center. At least one wheel without appropriate wheel sensors is
mounted (e.g. spare wheel).
The respective tire is indicated by
– – instead of the tire
inflation pressure in the multifunction display.
X Have the Advanced TPMS checked at an authorized
Mercedes-Benz Center.
X Have the wheel sensors installed at an authorized
Mercedes-Benz Center. Tire
Pressure
Monitor Currently
Unavailabl
e The TPMS (USA only) or Advanced TPMS (Canada only) 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 TPMS or Advanced TPMS becomes active again
automatically after a few minutes of driving. Please
correct
the tire
pressure. Vehicles with Advanced TPMS (Canada only):
The 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.
X
Check and correct tire inflation pressure as required
(Y page 185).
X Restart the Advanced TMPS ( Y page 192).Caution
Tire
Pressure
Tire
Defect Vehicles with Advanced TPMS (Canada only):
At least one tire is deflating.
The respective tire is indicated in the multifunction display.
X
Carefully bring the vehicle to a halt, avoiding abrupt
steering and braking maneuvers.
X If necessary, change the wheel (Y page 271). Vehicle status messages in the multifunction display
237
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Display messages
Possible causes/consequences and
X Solutionsb Marker
Lamp
Front Left
or
Marker
Lamp
Front
Right The front left side or right side marker lamp is malfunctioning.
X
Contact an authorized Mercedes-Benz Center as soon as
possible. b Parking
Lamp
Front
Left
Auxiliary
Bulb On
or
Parking
Lamp
Front
Right
Auxiliary
Bulb On The left or right front parking lamp is malfunctioning. A
substitute bulb is being used.
X
Halogen headlamp: Replace the bulb as soon as possible
(Y page 266).
X Bi-Xenon headlamp: Contact an authorized Mercedes-
Benz Center as soon as possible. b High Beam
Left
or
High Beam
Right The left or right high-beam lamp is malfunctioning.
X
Replace the bulb as soon as possible (Y page 266). b License
Plate
Lamp Left
or
License
Plate
Lamp Right The left or right license plate lamp is malfunctioning.
X
Replace the bulb as soon as possible (Y page 266). b AUTO-
Light
Inoperativ
e The light sensor is malfunctioning. The headlamps come on
automatically.
X
Contact an authorized Mercedes-Benz Center as soon as
possible.
To switch off the headlamps (U.S. vehicles only):
X In the control system, set daytime running lamp mode to
manual
(Y page 121).
X Switch off the headlamps using the exterior lamp switch
(Y page 87). 248
Vehicle status messages in the multifunction display
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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
277
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