Page 239 of 666

237 Controls in detail
Auxiliary heating/ventilation*
3
The auxiliary heating heats the coolant
and the vehicle interior and is therefore
more favorable to the engine and con-
sumes less fuel. The fuel tank must be at
least a quarter full to ensure that the
auxiliary heating/ventilation operates
correctly.
The maximum heating period is
60 minutes.
You can use the auxiliary heating / ven-
tilation to:\4
ventilate or preheat the vehicle inte-
rior and to de-ice the windows
\4
start the engine better in cold weath-
er
\4
support the vehicle’s heating system
while the engine is running and out-
side temperatures are low (heater
booster function) (
\2
page 234)
You can use the operating system to de-
fine up to three switch-on times, one of
which can be selected to switch on the
auxiliary heating / ventilation
(
\2
page 240).You can switch the auxiliary heating /
ventilation on and off immediately using:
\4
the auxiliary heating / heater booster
switch (
\2
page 238)
\4
the auxiliary heating remote control*
(\2
page 239)
iThe auxiliary heating automatically
switches to heater booster mode af-
ter the engine is started.
!
CAUTION
Switch on the auxiliary heating at reg-
ular intervals (at least once a month)
for approximately 10 minutes.
Make sure that the hot air flow is not
obstructed. The auxiliary heating
would otherwise overheat and switch
off.
nf_BA.book Page 237 Friday, January 25, 2008 3:53 PM
Page 241 of 666

239 Controls in detail
Auxiliary heating/ventilation*
3
\1To switch the auxiliary heating
off:
press the
ö
switch.
or
\1
Turn the key to position
0 in the igni-
tion lock (
\2
page 111).
The red indicator lamp in the switch
goes out.The auxiliary heating operates for
around a further 2 minutes and then
switches off automatically.
Operation using the remote control*The remote control has a maximum
range of approximately 600 meters. The
range may be reduced by:\4
sources of interference
\4
solid objects between the remote
control and the vehicle
\4
the remote control being in an unfa-
vorable position
\4
transmitting from an enclosed space
You can use up to 4 remote control units
on the vehicle.
1Indicator lamp
2To switch the auxiliary heating on
3To switch the auxiliary heating off
iYou cannot use the auxiliary ventila-
tion to cool the vehicle interior to a
lower temperature than the outside
temperature.
The heating or ventilation period is
limited to 60 minutes.
nf_BA.book Page 239 Friday, January 25, 2008 3:53 PM
Page 242 of 666

240 Controls in detailAuxiliary heating/ventilation*
3
\1To switch the auxiliary heating on:
press button
2
.
Indicator lamp1
lights up briefly.
\1To switch the auxiliary heating
off:
press button
3
.
Indicator lamp
1
lights up briefly.
The auxiliary heating operates for
around a further 2 minutes and then
switches off automatically.
Synchronizing the remote control
\1
Press and hold the
ö
switch for
more than 10 seconds:
The red indicator lamp in the
ö
switch remains lit until it is released.
Afterward, the red indicator lamp in
the
ö
switch flashes. The system
is activated for synchronizing.
\1
Press button
2
on the remote con-
trol.
The indicator lamp in the
ö
switch stops flashing and goes out.
The remote control and the control
panel are synchronized.
Selecting a switch-on timeYou can use the operating system to de-
fine up to 3 switch-on times, one of
which can be selected to switch on the
auxiliary heating / ventilation.
iChange the batteries immediately if
indicator lamp
1
does not
light up
briefly each time a button is pressed
(
\2
page 541).
iIf you press button
3
on the remote
control during the first 3 seconds of
synchronization process, only this re-
mote control will be synchronized
with the clock.
Any other remote control units that
were synchronized will be cleared.
nf_BA.book Page 240 Friday, January 25, 2008 3:53 PM
Page 447 of 666
445 Practical hints
What to do if ...
5
Remote controlWarning
G
Always have maintenance work carried
out at an authorized Sprinter Dealer
Continued
Warning (Continued)
G
which has the necessary specialist knowl-
edge and tools to carry out the work re-
quired.
The manufacturer recommends that you
use an authorized Sprinter Dealer for this
purpose.
Continued
Warning (Continued)
G
I n p a r t i c u l a r , w o r k r e l e v a n t t o s a f e t y o r o n
safety-related systems must be carried
out at an authorized Sprinter Dealer.
There is a risk of an accident and injury if
this work is carried out incorrectly.
nf_BA.book Page 445 Friday, January 25, 2008 3:53 PM
Page 448 of 666
446 Practical hintsWhat to do if ...
5
Problem
Possible cause / result
Suggested solutions
It is no longer possible to lock the vehicle us-
ing the remote control.
The turn signals do not flash when the vehicle
is locked.
The doors are not closed properly.
\1Close the doors properly and lock the
vehicle again.
The central locking system has malfunctioned.
\1Lock the vehicle using the key
(\2page 88).
\1Have the central locking system
checked as soon as possible at an au-
thorized Sprinter Dealer.
nf_BA.book Page 446 Friday, January 25, 2008 3:53 PM
Page 449 of 666
447 Practical hints
What to do if ...
5
It is no longer possible to lock or unlock the
vehicle using the remote control.
The remote control batteries are weak or dis-
charged.
\1Point the remote control towards the
driver’s door handle at close range and
try again.
If this does not work:
\1Lock or unlock the vehicle using the key
(\2page 88).
\1Check the batteries of the remote
control (\2page 86). Change the
batteries if necessary (\2page 540).
The remote control is malfunctioning.
\1Lock or unlock the vehicle using the key
(\2page 88).
\1Have the remote control checked at an
authorized Sprinter Dealer.
Problem
Possible cause / result
Suggested solutions
nf_BA.book Page 447 Friday, January 25, 2008 3:53 PM
Page 450 of 666
448 Practical hintsWhat to do if ...
5
The battery check lamp on the remote control
does not light up briefly when a button is
pressed.
The remote control batteries are discharged.
\1Change the batteries (\2page 540).
You have lost a remote control.
\1Have the remote control canceled at an
authorized Sprinter Dealer.
\1Report the loss immediately to the
vehicle insurers.
Your authorized Sprinter Dealer will be hap-
py to obtain a replacement for you.
Problem
Possible cause / result
Suggested solutions
nf_BA.book Page 448 Friday, January 25, 2008 3:53 PM
Page 456 of 666

454 Practical hintsWhat to do if ...
5
Problem
Possible cause / result
Suggested solutions
The battery check lamp on the remote control
for the auxiliary heating does not light up
briefly when a button is pressed.
The remote control batteries are discharged.
\1Change the remote control batteries
(\2page 541).
The auxiliary heating does not switch on or the
engine does not start.
Lack of fuel.
The fuel tank is less than a quarter full. The aux-
iliary heating switches off automatically.
\1Refuel at the nearest refueling station.
\1Then start the auxiliary heating repeat-
edly until the fuel lines are full.
The undervoltage protection circuit integrated
in the control unit switches off the auxiliary
heating because the on-board voltage is less
than 10 V.
\1If necessary, have the alternator and
the battery checked.
The fuse has blown.
\1Replace the fuse (\2page 589).
\1Have the cause of the blown fuse
checked at an authorized Sprinter Deal-
er.
nf_BA.book Page 454 Friday, January 25, 2008 3:53 PM