Page 235 of 666
233 Controls in detail
Air conditioning
3
Rear heater* Rear heating control panel
\1To switch on:
press the switch.
The indicator lamp in the switch co-
mes on.
\1To switch off:
press the switch
again.
The indicator lamp in the switch goes
out.
Setting the airflowUse the airflow control
2
to adjust the
airflow.
\1To increase/reduce:
set the airflow
control
2
to the desired level.
Setting the temperatureOnly change the temperature in small in-
crements.
1Rear heating
2Airflow control
3Temperature selector control
iYour vehicle may be equipped with
an air-conditioning system in the rear
compartment (
\2
page 225) and/or
a rear heater*.
iIf both systems are installed and the
temperature selector control is in the
middle position, only one of the sy-
stems operates and air-recirculation
mode is active.
nf_BA.book Page 233 Friday, January 25, 2008 3:53 PM
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
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Page 237 of 666
235 Controls in detail
Air conditioning
3
\1To switch on:
press the
switch
³
.
The indicator lamp in the switch
comes on.
\1To switch off:
press the
³
switch again.
The indicator lamp in the switch goes
out.
The heater booster function oper-
ates for around a further 2 minutes
and then switches off automatically.The vehicle is equipped with an electri-
cally powered heater booster system.
The heater booster system ensures that
the vehicle interior is heated up as
quickly as possible during the engine’s
warm-up phase.
iIf you switch off the engine without
switching off the heater booster
function, the system will be switched
on the next time the engine is started
(memory function).
Electrical heater booster systemiThe heater booster system switches
on automatically as required.
nf_BA.book Page 235 Friday, January 25, 2008 3:53 PM
Page 298 of 666
296 Controls in detailFeatures
3
\1
Switch on the ignition (
\2
page 111).
\1
Press in cigarette lighter
1
.The cigarette lighter will pop out auto-
matically when the heating element is
red-hot.The paper holder is on the control panel
for the air-conditioning system.
1Paper holder\1
Press top of paper holder
1
.
Warning
G
Only hold the hot cigarette lighter by its
knob. Otherwise, you may burn yourself.
Remove the cigarette lighter if children
are traveling with you. They could injure
themselves on a hot cigarette lighter or
start a fire.
Warning
G
Do not press the cigarette lighter in with
too much force. The ashtray compart-
ment could otherwise close and trap your
finger.
Paper holder
N68.00-2425-31
nf_BA.book Page 296 Friday, January 25, 2008 3:53 PM
Page 312 of 666

310 OperationDriving tips
4
If possible, do not brake abruptly, but
rather engage the brake slightly at first
to permit the trailer to activate its brake.
Then increase the braking force.Warning
G
Take into consideration that when towing
a trailer, the handling characteristics are
different and less stable from those when
operating the vehicle without a trailer.
It is important to avoid sudden maneu-
vers. Sudden maneuvers may lead to loss
of control over the vehicle-trailer combi-
nation. This could cause an accident re-
sulting in property damage or injury to
you or others.
!
CAUTION
If the transmission hunts between
gears on inclines, manually shift to a
lower gear (select
"4", "3", "2"
or
"1"). A lower gear and reduction
of speed reduces the chance of the
engine overloading and / or over-
heating.
When going down a long hill, shift
into a lower gear and use the en-
gine’s braking effect. Avoid riding the
brakes, thus overheating the vehicle
and trailer brakes.
If the engine coolant rises to an ex-
tremely high temperature (coolant tem-
perature needle approaching the red
zone) when the air conditioner is on,
turn off the air conditioner. Engine cool-
ant heat can be additionally vented by
opening the windows, switching the cli-
mate control fan speed to high and set-
ting the temperature control to the
maximum hot position.
Extreme care must be exercised since
your vehicle with a trailer will require ad-
ditional passing distance ahead than
when driving without a trailer. Because
your vehicle and trailer is longer than
your vehicle alone, you will also need to
go much farther ahead of the passed ve-
hicle before you can return to your lane.
nf_BA.book Page 310 Friday, January 25, 2008 3:53 PM
Page 314 of 666

312 OperationDriving tips
4
You will find information about the
speed limit for your tires under “Tires
and wheels” in this section
(\2
page 383).
Check regularly, e.g. weekly or when re-
fueling:
\4
the vehicle lighting
\4
the condition of the tires
(\2
page 346) and the tire pressures
(
\2
page 361)
\4
the engine oil level (
\2
page 322)
\4
the brake fluid level (
\2
page 331)
\4
the fluid level in the windshield wash-
er system / headlamp cleaning sys-
tem reservoir (
\2
page 333)
\4
the contamination level of the rear
air-conditioning air cleaner
(\2
page 414)
Your vehicle is equipped with monolith-
ic-type catalytic converters, an impor-
tant element in conjunction with the
oxygen sensors to achieve substantial
control of the pollutants in the exhaust
emissions. Keep your vehicle in proper
operating condition by following our rec-
ommended maintenance instructions as
outlined in your Service Booklet.
Warning
G
Exceeding the permissible maximum
speed can cause tire damage, which
could lead to loss of control of the vehi-
cle.
As the driver, you must find out about the
maximum speed of the vehicle and the re-
sulting permissible maximum speed of
the tires (tire and tire pressure).
Never exceed the speed limit for your
tires under any circumstances
(\2page 383).
Regular checks
Catalytic converter (gasoline engine)
nf_BA.book Page 312 Friday, January 25, 2008 3:53 PM
Page 347 of 666

345 Operation
Tires and wheels
4
For information on tire and wheel sizes
with load ratings, refer to "Tire and load-
ing information" (
\2
page 303).Cuts and punctures in radial tires are re-
pairable only in the tread area because
of side wall flexing. Consult an autho-
rized tire dealer for radial tire repairs.
Radial-ply tiresWarning
G
Combining radial ply tires with other types
of tires on your Sprinter vehicle will
change the vehicle’s handling characteris-
tics and may lead to an accident resulting
in death, severe personal injuries and
property damage. Always use radial ply
tires in sets of 4 (or 6, in case of vehicles
with dual rear wheels).
Never combine them with other types of
tires.
Tire valves (snap-in valves)Warning
G
Sprinter vehicle tire valves are tested and ap-
proved under rough operating conditions.The installation of additional hub caps or
other wheel simulators could cause dam-
age to the tire valve and lead to a loss of
tire pressure at the valve stem.
Continued
Warning (Continued)
G
Do not install any of these parts on your
Sprinter vehicle. To help ensure safe and
reliable operation of your Sprinter vehicle,
only use parts and accessories tested and
approved by the vehicle manufacturer for
your Sprinter vehicle.
nf_BA.book Page 345 Friday, January 25, 2008 3:53 PM
Page 366 of 666

364 OperationTires and wheels
4
Tire temperature and tire inflation pres-
sure are also increased while driving, de-
pending on the driving speed and the
tire load.
Tire inflation pressure changes by ap-
proximately 1.5 psi (0.1 bar) per 18 °F
(10 °C) of air temperature change. Keep
this in mind when checking tire inflation
pressure where the temperature is dif-
ferent from the outside temperature.For example:
If the inside temperature is 68 °F
(20 °C) and the outside temperature is
32 °F (0 °C) then the cold tire inflation
pressure should be increased by 3 psi
(0.2 bar), which equals 1.5 psi (0.1 bar)
for every 18 °F (10 °C) for this outside
temperature condition.
Check tire inflation pressures more of-
ten if subject to a wide range of outdoor
temperatures, as tire pressures vary
with temperature changes.
Warning
G
Tire pressure may increase during opera-
tion.
Never reduce this normal pressure build
up or your tire pressure will be too low.
Underinflated tires wear excessively and/
or unevenly, adversely affect handling and
fuel economy, and are more likely to fail
from being overheated.
nf_BA.book Page 364 Friday, January 25, 2008 3:53 PM