Page 152 of 421

149 Flexible service system
Te ch n ica l
data Instruments
and controlsOperationDrivingInstrument
cluster displayPractical hints Car care Index Following a completed A or B service the Mercedes-Benz
Center sets the counter mileage to 10 000 miles
(Canada: 15 000 km) and 365 days.
The counter can also be set by any individual. To do so:
Turn the electronic key in starter switch to position 1.
To call up the trip odometer and main odometer, press
button è or ÿ on the multifunction steering
wheel until the display appears. See page 124.
Press button j or k until the FSS indicator
appears.
Press button Jon the instrument cluster for
approximately 2 seconds.The multifunction display will show the question:
“DO YOU WANT TO RESET SERVICE INTERVAL? –
CONFIRM BY PRESSING R”
Press button Jon the instrument cluster again to
reset the service indicator.
The new service indicator is displayed with the reset
distance of 10 000 miles (Canada 15 000 km).
If the FSS counter was inadvertently reset, have a
Mercedes-Benz Center correct it.
However you choose to set your reference numbers, the
scheduled services as posted in the Service Booklet
must be followed to properly care for your vehicle.
Page 153 of 421

150 Tire inflation pressure monitor
Te ch n ica l
data Instruments
and controlsOperationDrivingInstrument
cluster displayPractical hints Car care Index
Tire inflation pressure monitor
The tire inflation pressure, as selected by the driver, is
monitored in all four wheels on the ground. A warning
is issued to the driver in the case of a decrease in the
inflation pressure in one or more of the tires.Inquiry of present tire inflation pressure
Turn electronic key in starter switch to position 1 or 2.
Press è or ÿ button on the multifunction
steering wheel until the display for trip and main
odometer appears, see page 124.
Press the j or k button repeatedly until the tire
inflation pressure monitor is displayed.
The present tire inflation pressure for each wheel is
displayed in multifunction display.
Wa r n i n g !
The tire inflation pressure monitor does not
indicate a warning for wrongly selected inflation
pressures. Always adjust tire inflation pressure
according to the label affixed on the fuel filler flap.
See page 348 for tire inflation pressure.The tire inflation pressure monitor is not able to
issue a warning due to a sudden loss of pressure
(e.g. tire puncture caused by a foreign object). In
this case bring vehicle to a halt by carefully
applying the service brakes and avoiding abrupt
steering maneuvers.
Page 154 of 421

151 Tire inflation pressure monitor
Te ch n ica l
data Instruments
and controlsOperationDrivingInstrument
cluster displayPractical hints Car care Index Notes:
Following a tire inflation pressure reactivation process
the real tire inflation pressures are displayed only after
a few minutes travel time.
Possible differences between readings of a tire pressure
gauge of an air hose, e.g. gas station equipment, and the
vehicle’s multifunction display can occur. The vehicle’s
multifunction display of the tire inflation pressure
monitor is a more precise reading.Activation of tire inflation pressure monitor
Activation of tire inflation pressure monitor is
necessary if tire inf lation pressure is being changed,
wheels or tires are replaced, or new wheels are installed
on the vehicle.
Tire inf lation pressure should be checked and corrected
according to the label affixed inside the fuel filler flap.
For a detailed description, refer to page 348.
Turn electronic key in starter switch to position 2 (the
engine must not be running).
Notes:
When checking the tire inflation pressure of the road
wheels, also check the spare tire.
The tire inflation pressure of the spare wheel, mounted
or not mounted, is not monitored by the tire inflation
pressure monitor.
See page 338 for location of the spare wheel, and
page 348 for tire inflation pressure.
Page 155 of 421

152 Tire inflation pressure monitor
Te ch n ica l
data Instruments
and controlsOperationDrivingInstrument
cluster displayPractical hints Car care Index
Press è or ÿ button on the multifunction
steering wheel until the display for trip and main
odometer appears, see page 124.
Press the j or k button repeatedly until the tire
inflation pressure monitor appears.
Press and hold button J on the instrument cluster
until the message “MONITOR CURRENT TYRE
PRESSURES?” appears. Release button J.Press and hold button J on the instrument cluster
again until the message “TYRE PRESS. CONTROL –
ACTIVATED!” appears.
The tire inflation pressure monitor is now activated and
monitors the presently selected tire pressure for all four
wheels on the ground.
Repeat above steps if the multifunction display shows
the message “TYRE PRESS. CONTROL – REACTIVATE!”.
A multifunction display showing the message
“TYREPRESSURE–CHECKTYRES!” indicates a much
too low tire inflation pressure. Check and correct tire
inflation pressure again on all wheels, and repeat the
tire inflation pressure monitor activation steps listed
above.
Page 156 of 421

153 Tire inflation pressure monitor
Te ch n ica l
data Instruments
and controlsOperationDrivingInstrument
cluster displayPractical hints Car care Index Notes:
To ensure proper functioning of the tire inflation
pressure monitor, the tire inflation pressure should be
checked and corrected according to the label affixed
inside the fuel filler flap. For a detailed description,
refer to page 348.
The message “TYRE PRESS. CONTROL – REACTIVATE”
appears if the tire inflation pressure shows an increase
of 4.4 psi (0.3 bar) or more. Reactivate the tire inflation
pressure monitor.
The tire inflation pressure monitor only functions on
wheels equipped with the proper electronic sensors.
Inquire at your authorized Mercedes-Benz Center about
retrofitting other than original Mercedes-Benz wheels
with electronic sensors.Transporting a deflated road wheel in the vehicle, e.g.
after having a flat, the tire inflation pressure monitor
should only be activated once the flat tire and rim are
removed from the vehicle. Otherwise the monitor
displays the message “TYRE PRESS. CONTROL –
CURRENTLY INACTIVE”.
To prevent possible damage to the electronic sensors,
have tire changes only performed at an authorized
Mercedes-Benz Center.
For malfunction and warning messages, see page 303.
Page 157 of 421

154 Engine oil level indicator
Te ch n ica l
data Instruments
and controlsOperationDrivingInstrument
cluster displayPractical hints Car care Index
Engine oil level indicator
To check the engine oil level, park vehicle on level
ground, with engine at normal operational temperature.
Check oil level approximately 5 minutes after stopping
the engine, allowing for the oil to return to the oil pan.
The message “PERF. SERV. ON TIME” (perform service
[engine oil level check] on time) will be displayed if the
required waiting period has not been observed after
stopping the engine:
•with engine at operational temperature
approximately 5 minutes.•with engine not at operational temperature up to
approximately 30 minutes.
The engine oil level check can be repeated after a short
time.
Turn the electronic key in starter switch to position 2.
To call up the trip odometer and main odometer, press
button è or ÿ on the multifunction steering
wheel until the display appears. See page 124.
Press button j or k on the multifunction
steering wheel repeatedly until the “MEASUREMENT
CORRECT – ONLY IF VEH. LEVEL” engine oil level
indicator appears. This indicator is only a reminder.
Measurement can be cancelled by pressing button j
or k if the vehicle is not parked on level ground. An
incorrect reading will be recorded if you do not cancel
the measurement. Move the vehicle to level ground and
measure again.
The electronic key in starter switch is not in position 2 if
the “ENGINE OIL LEVEL – SWITCH ON IGNITION”
message appears.
The “ENGINE OIL LEVEL – MEASURING NOW”
message is displayed after approximately 3 seconds.
MEASUREMENT CORRECT
Page 163 of 421
160 Combination switch
Te ch n ica l
data Instruments
and controlsOperationDrivingInstrument
cluster displayPractical hints Car care Index
Combination switch
1Low beam
(exterior lamp switch position B)
2High beam
(exterior lamp switch position B)3High beam flasher (high beam available
independent of exterior lamp switch position)
4Turn signals, right
5Turn signals, left
To signal minor directional changes, such as changing
lanes on a highway, move combination switch brief ly to
the point of resistance only and release. The turn
signals blink three times.
To operate the turn signals continuously, move the
combination switch past the point of resistance (up or
down). The switch is automatically canceled when the
steering wheel is turned to a large enough degree.
Turn signal failure
If one of the turn signals fails, the turn signal indicator
system f lashes and sounds at a faster than normal rate.
P54.25-2388-26
5
2
1
4
3
4
5
Page 168 of 421

165 Automatic climate control
Te ch n ica l
data Instruments
and controlsOperationDrivingInstrument
cluster displayPractical hints Car care Index 1Center air outlet, left, adjustable
2Fixed air outlet, left
3Air volume control for left center air outlet
To open: Turn the thumbwheel upward.
■: The left center air outlet is fully open.
■■: The left center and fixed air outlets are
opened.
4Air temperature control
To lower temperature: Turn thumbwheel towards
the blue marking.
Automatic mode: Turn thumbwheel to position A.
The indicator lamp above the thumbwheel will
illuminate. The airflow and temperature for the
center air outlets are regulated automatically.
5Air volume control for right center air outlet.
To open: Turn the thumbwheel upward
■: The right center air outlet is fully open.
■■: The right center and fixed air outlets are
opened.6Center air outlet, right, adjustable
7Fixed air outlet, right
8Side defroster outlet, left and right, fixed
9Side air outlet, left and right, adjustable
10Air volume control for side air outlets
To open: Turn thumbwheel outwards
■: The side air outlet is fully opened.
■■: The side and door air outlets are opened.
11Door air outlet, left and right
12Display and controls
Note:
We recommend that the sliders for the air
outlets (1, 6, 9) be clicked to the automatic position to
provide practically draft free ventilation.