Page 86 of 342

83 Instrument cluster
Te ch n i c a l
data Instruments
and controlsOperationDrivingInstrument
cluster displayPractical hints Car care Index 1Coolant temperature gauge, see page 87
2Outside temperature indicator (optional), see
page 88
3Fuel gauge with reserve and fuel cap placement
warning lamp, see page 242
4Left turn signal indicator lamp, see exterior lamp
switch, page 97
5Knob for odometer / trip odometer readout / reset,
FSS indicator, and intensity of instrument lamps,
see page 86
64-ETS+ and ESP warning lamp, see page 243
For 4-ETS+ (four wheel electronic traction system),
seepage221;
for ESP (electronic stability program), see page 223.7Speedometer
8Selectable:
Trip odometer, see page 86
Main odometer, see page 86
FSS display, see page 94
Engine oil level indicator, see page 96
9Right turn signal indicator lamp, see exterior lamp
switch, page 97
10Knob for setting clock, see page 87
11Tachometer, see page 88
12Gear range indicator display, see selector lever
positions, page 186
13Clock, see page 87
Page 89 of 342

86 Instrument cluster
Te ch n i c a l
data Instruments
and controlsOperationDrivingInstrument
cluster displayPractical hints Car care Index
Activating instrument cluster display
The display for temperature, odometer, oil level
indicator and clock is activated by:
•Opening the driver’s door.
•Pressing button (1) in the instrument cluster (with
key removed or in steering lock position 0).
•Turning the key in steering lock to position 1 or 2.
The instrument cluster display shuts off automatically.Display illumination
The instrument cluster illumination can be set with the
park lamps, low beam headlamps or high beam
headlamps switched on.
Rotate knob (1) to vary intensity of instrument lamps:
•Clockwise - instrument lamp intensity increases.
•Counterclockwise - instrument lamp intensity
decreases.
Odometer/trip odometer (8)
Activate the instrument cluster.
•Press knob (1) once to switch to or from odometer to
trip odometer readout.
•Press and hold knob (1) for more than 1 second to
reset trip odometer (with trip odometer displayed).
•Press knob (1) twice to display next scheduled
service.
2
Page 91 of 342

88 Instrument cluster
Te ch n i c a l
data Instruments
and controlsOperationDrivingInstrument
cluster displayPractical hints Car care Index
Outside temperature indicator (2)
The temperature sensor is located in the front bumper
area. Due to its location, the sensor can be affected by
road or engine heat during idling or slow driving. This
means that the accuracy of the displayed temperature
can only be verified by comparison to a thermometer
placed next to the sensor, not by comparison to external
displays (e.g. bank signs etc.).
Adaptation to ambient temperature takes place in steps
and depends on the prevailing driving conditions (stop-
and-go or moderate, constant driving) and amount of
temperature change.Tachometer (11)
The tachometer displays the present engine speed in
revolutions per minute (RPM).
To help protect the engine, the fuel supply is interrupted
if the engine is operated above its specified limit.
Wa r n i n g !
The outside temperature indicator is not designed
to serve as an Ice-Warning Device and is therefore
unsuitable for that purpose. Indicated
temperatures just above the freezing point do not
guarantee that the road surface is free of ice.
Page 98 of 342

95 Flexible service system
Te ch n i c a l
data Instruments
and controlsOperationDrivingInstrument
cluster displayPractical hints Car care Index Important!
The FSS indicator is not an engine oil level indicator.
See page 96 for engine oil level indicator.
Notes:
When disconnecting vehicle battery for one or more
days at a time, such days will not be counted. Any such
days not counted by the FSS can be added by your
Mercedes-Benz Light Truck Center.
The interval between services is determined by the type
of driving for which the vehicle is used. For example,
driving at extreme speeds, and cold starts combined
with short distance driving in which the engine does not
reach normal operating temperature, reduce the interval
between services.
Following a completed A or B service the Mercedes-
Benz Light Truck Center sets the counter mileage to
10 000 miles (Canada: 15 000 km).
The counter can also be set by any individual. To do so:
1. Turn the key in steering lock to position 2.
2. Immediately press button (1) twice within one
second.3. The present status for days or distance is displayed.
Within 10 seconds turn key in steering lock to
position 0.
4. Press and hold button (1), while turning key in
steering lock to position 2 again. The present status
for days or distance is displayed once more.
Continue to hold button (1).
After approximately 10 seconds a signal sounds, and
the display shows 10 000 miles (Canada: 15 000 km)
for approximately 10 seconds.
5. Release button (1).
If the FSS counter was inadvertently reset, have it
corrected at a Mercedes-Benz Light Truck Center.
Note:
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 99 of 342

96 Engine oil level indicator
Te ch n i c a 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 turning
off the engine, allowing for the oil to return to the oil
pan.
Turn the key in steering lock to position 2 and wait until
the display “––––––” appears in the odometer display
field.
Within 1 second press button (1) twice.The following messages are available:
“OIL i.O”
No oil needs to be added.
“–1.0 L”
“–1.5 L”
“–2.0 L”
Add oil according to amount displayed.
See page 255 for instructions on adding engine oil.
“OIL HI”
Do not overfill the engine.
Excessive oil must be siphoned or drained off. It could
cause damage to the engine and catalytic converter not
covered by the Mercedes-Benz Limited Warranty.
The display “––––––” flashes in the odometer display
field if a proper oil level check cannot be performed. The
engine oil level check can be repeated after a short time.
Perform the engine oil level check with the dipstick, if it
cannot be completed via the odometer display field.
Seepage255.
In this case we recommend that you have the system
checked at a Mercedes-Benz Light Truck Center.
Page 115 of 342
112 Automatic climate control
Te ch n i c a l
data Instruments
and controlsOperationDrivingInstrument
cluster displayPractical hints Car care Index
Basic setting - automatic mode
To a c ti va te :
With the engine running, briefly press the Ubutton.
The indicator lamp in the Ubutton lights up. The
temperature, air volume and distribution are controlled
automatically.
Temperature can be adjusted with the temperature
control, which is located in the center.
Turning the control wheel to either the blue or red dot
switches off the temperature regulation.
To deactivate:
Briefly press the Ubutton. The indicator lamp in the
Ubutton goes out. The automatic mode is switched
off, air volume control is set to fan speed 2 and air
distribution is set to positionV.To activate basic setting:
Press Ubutton at least 3 seconds.
All functions are switched to automatic mode and
temperature is set to 72˚F (22˚C).
The rear window defroster may be switched on
manually.
P83.30-3551-21
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114 Automatic climate control
Te ch n i c a l
data Instruments
and controlsOperationDrivingInstrument
cluster displayPractical hints Car care Index
Special settings (use only for short duration)
Turning the air volume control wheel or air distribution
wheel switches off the automatic mode.
The temperature control will be still in automatic mode.
The fan speed and air distribution can be manually
selected.
The indicator lamp in the Ubutton goes out.
The set value is indicated by a lighted segment on the
setting wheels.
To return to automatic mode:
Press Ubutton. The indicator lamp in the button
illuminates and the lighted segments on the air volume
and air distribution wheel go out.Air volume, manual:
The air volume control wheel has 5 fan speeds which
can be selected.
Important!
No fresh air enters the interior with the air volume
control set to0. The system is switched off.
Air distribution, manual:
jAir from the windshield and side air outlets.
VAir from the windshield, center, side and footwell
air outlets.
kAir from the footwell and side air outlets.
hAir from the center and side air outlets.
P83.30-3549-21
Page 119 of 342

116 Automatic climate control
Te ch n i c a l
data Instruments
and controlsOperationDrivingInstrument
cluster displayPractical hints Car care Index
Air recirculation
This mode can be selected to temporarily reduce the
entry of annoying odors or dust into the vehicle’s
interior.
Outside air is not supplied to the vehicles’s interior.
To select, press briefly O button. The indicator lamp
in button lights up.
To cancel, press briefly O button again. The indicator
lamp in button goes out.
The system automatically switches from air
recirculation to fresh air, after:
•approx. 30 minutes, when the automatic climate
control switched on,
•approx. 5 minutes, when the automatic climate
control switched off.
•approx. 5 minutes, if the outside temperature is
below 45˚F (7˚C).
If the windows should fog up from the inside, switch
from recirculated air back to fresh air.Note:
To achieve the fastest possible cooling of the interior, the
automatic climate control automatically switches to air
recirculation.
The indicator lamp in the Obutton is not illuminated
when the system automatically switches to air
recirculation.