Page 31 of 666
29 At a glance
Switch units
1
Switch unit between the light switch and
the steering wheelAdditional switch units
N54.25-2913-31
Function
Page
³
Switches the heater
booster function*
on/off
234
ö
³
Switches auxiliary
heating*on/off
238
Switches the heater
booster function*
on/off
234
Adjusts the working
engine speed*
275
Switches the operating
speed governor*
on/off
273
Ventilates the load
compartment,
air in/air out*
247
iThe layout of the switches may vary,
depending on the vehicle’s equip-
ment.
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Page 84 of 666
82 Controls in detail
3
Air conditioning........... 215
Auxiliary heating/ventilation*........... 236
Open air........... 244
Driving systems........... 248
Operating the vehicle........... 273
Transporting........... 276
Features........... 287
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Page 151 of 666
149 Controls in detail
Operating system without steering wheel buttons
3
There may be a short delay before a low-
er outside temperature is displayed, for
example after leaving a garage. There
may also be a short delay before a rise in
the outside temperature is displayed.
This prevents you from seeing a temper-
ature display influenced by heat from
the engine when the vehicle is stationary
or moving slowly.
MenusFunction
Page
Calling up the service due
date*
411
Checking the engine oil level
322
Selecting/setting the auxiliary
heating switch-on time*
240
Tire pressure monitor
365
Setting the time
150
Setting the date
150
iTo return to the standard display:\4
press and hold menu button
for more than 1 second
\4
do not press a button for
10 seconds
The display accepts the changed set-
tings.
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Page 157 of 666
155 Controls in detail
Operating system with steering wheel buttons*
3
Function
Page
1
Operation
menu
157
Standard display with
trip meter and odometer
157
Displaying coolant tem-
perature
157
Calling up the service
due date
411
Tire pressure monitor
367
Checking the engine oil
level (only on vehicles
with a diesel engine)
326
2
Audio*
menu
158
Selecting a radio station
158
Operating the CD play-
er/CD changer
158
Function
Page
3
Malfunction memory
menu
160
Display malfunctions
4
Settings
menu
161
Resetting settings
162
Function
Page
Instrument cluster sub-
menu
165
Clock/Date submenu
168
Lighting submenu
170
Vehicle submenu
174
Auxiliary heating*
submenu
241
Convenience* submenu
175
Function
Page
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Page 163 of 666
161 Controls in detail
Operating system with steering wheel buttons*
3
The
Settings
menu has two functions:
\4
the
To reset: Press reset button
for 3 sec.
function, with which you
can reset all settings to the factory
defaults
\4
a collection of submenus which you
can use to make individual settings
for your vehicle
\1
Press the
è
or
ÿ
button re-
peatedly until you see the
Settings
menu in the display.
Settings menu
iThe malfunction memory is cleared
when you switch off the ignition. If
any new malfunctions occur, they will
be displayed again.Settings menu
N54.32-2254-31
Function
Page
Reset settings
162
Reset the functions of a sub-
menu
162
Submenus in the Settings
menu
163
Instrument cluster submenu
165
Clock/Date submenu
168
Lighting submenu
170
Vehicle submenu
174
Auxiliary heating* submenu
240
Convenience* submenu
175
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Page 166 of 666
164 Controls in detailOperating system with steering wheel buttons*
3
Instrument cluster
(\2page 165)
Clock/Date
(\2page 168)
Lighting*
(\2page 170)
Vehicle
(\2page 174)
Auxiliary heating*
(\2page 236)
Convenience*
(\2page 175)
Select the unit for the
temperature
Set the hours (clock)
Set constant
headlamp mode*
Set station se-
lection
Select a switch-on
time
Key-dependent
settings
Select the unit for the
speedometer
Set the minutes
(clock)
Switch the locator
lighting on or off*
Set the wind-
shield wiper
sensitivity
Hours (set a switch-
on time)
Select the unit for the
odometer
Select the time for-
mat
Switch the exteri-
or lighting delayed
switch-off
on or off*
Minutes (set a
switch-on time)
Select the language
Set the day (date)
Select the display for
the status line
Set the month (date)
Select the unit for the
tire pressure
Set the year (date)
nf_BA.book Page 164 Friday, January 25, 2008 3:53 PM
Page 218 of 666

216 Controls in detailAir conditioning
3
Your vehicle is equipped with either\4
an air-conditioning system and pos-
sibly additional air conditioning in
the rear*
or
\4
a heater* and possibly additional
rear heating* The air-conditioning system is only oper-
ational while the engine is running. You
can use the air-conditioning system to
regulate or control the temperature au-
tomatically. The vehicle is either heated
or cooled, depending on the tempera-
ture selected and the outside tempera-
ture.
The combination filter removes most
dust particles, pollen and unpleasant
odors from the outside air.
Function
Page
1
Side window defroster
vents
224
2
Thumbwheel for air vents
3
Side air vents
4
Thumbwheel for side air
vents and defroster vents
224
5
Swiveling center air vents
6
Thumbwheel for center
air vents
7
Control panel\4
Tempmatic
\4
Rear heating/rear
cooling*
218
225
8
Switch\4
Rear window heating*
\4
Windshield heating*
214
213
9
Auxiliary heating switch*
Heater booster switch*
238
234
Function
Page
Air-conditioning system
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Page 236 of 666
234 Controls in detailAir conditioning
3
\1To increase:
turn the temperature
selector control clockwise.
\1To reduce:
turn the temperature se-
lector control counterclockwise.
The fuel-fired heater booster system
heats the vehicle interior as quickly as
possible while the engine is running.The switch for the heater booster func-
tion is between the light switch and the
steering wheel.
Vehicles with auxiliary heatingVehicles without auxiliary heating*
1To switch the auxiliary heating on / off
(\2page 238)
2To switch the heater booster function
on / off
Heater booster function* iThe auxiliary heating automatically
switches to heater booster mode af-
ter the engine is started.
N54.25-2926-31
N54.25-2927-31
nf_BA.book Page 234 Friday, January 25, 2008 3:53 PM