Page 332 of 666

330 OperationEngine compartment
4
\1
Slowly unscrew cap
1
counter-
clockwise to reduce excess pres-
sure.
\1
Continue turning the cap and remove
it.
\1
Add coolant as far as the MAX mark.
\1
Twist cap
1
back on.
For coolant specifications, see "Service
products and capacities" (
\2
page 604).
Warning
G
When opening the coolant expansion tank
there is a risk of scalding from hot coolant
spraying out. The cooling system and the
coolant expansion tank are pressurized
when the engine is at normal operating
temperature.
Wear gloves and eye protection. Only
open the coolant expansion tank when
the coolant temperature is less than
122 °F (50 °C).
Warning
G
Coolant contains glycol and is therefore
toxic. Do not swallow coolant. Consult a
doctor immediately if any coolant is swal-
lowed.
Do not allow coolant to come into contact
with your skin, eyes or clothing. In the
event of contact with the eyes, rinse them
thoroughly with clean water. Clean skin
and clothes immediately with soap and
water. Change out of soiled clothing with-
out delay.
!
CAUTION
Check the cooling and heating sys-
tems regularly for leaks. If a large
quantity of coolant is lost, have the
cause traced and rectified at an au-
thorized Sprinter Dealer.
nf_BA.book Page 330 Friday, January 25, 2008 3:53 PM
Page 423 of 666

421 Operation
Cleaning and care of the vehicle
4
Outside of windshield and wiper
blades
\1
Turn key to position
1 in ignition lock
(
\2
page 111).
\1
Switch on windshield wipers
(\2
page 210).
\1
When the wiper arms are vertical,
turn key to position
0 in the ignition
lock or remove the key.
\1
Fold the wiper arms away from the
windshield until you feel them en-
gage in place.
\1
You can now clean the windshield
and the wiper blades.
\1
Fold the windshield wipers back
again before you switch on the igni-
tion.
Windows
!
CAUTION
Do not fold the windshield wipers
away from the windshield unless the
hood is closed. You will otherwise
damage the hood.
Warning
G
Switch off the ignition before cleaning the
windshield or the wiper blades. The wind-
shield wipers could otherwise move and
injure you.
!
CAUTION
Do not use a dry cloth, abrasive ma-
terial, solvent or solvent-based clean-
ing agent to clean the inside of the
windows. Clean the inside of the win-
dows with a damp cloth or a commer-
cially available glass cleaner. Do not
touch the inside of the rear and side
windows with hard objects, such as
an ice scraper or a ring. You could
otherwise damage the windows or
the rear window heating.
nf_BA.book Page 421 Friday, January 25, 2008 3:53 PM
Page 451 of 666
449 Practical hints
What to do if ...
5
The key can no longer be turned in the ignition
lock.
The on-board voltage is too low.
\1Remove the key and re-insert it into the
ignition lock.
\1Switch off all non-essential consumers,
for example the seat heating, interior
lighting, and try to turn the key again.
If this does not work:
\1Check the starter battery and charge it
if necessary.
or
\1The engine may be jump-started
(\2page 581).
or
\1Consult an authorized Sprinter
Dealer.
Problem
Possible cause / result
Suggested solutions
nf_BA.book Page 449 Friday, January 25, 2008 3:53 PM
Page 455 of 666
453 Practical hints
What to do if ...
5
Auxiliary heating*Warning
G
Always have maintenance work carried
out at an authorized Sprinter Dealer which
has the necessary specialist knowledge
and tools to carry out the work required.
Continued
Warning (Continued)
G
The manufacturer recommends that you
use an authorized Sprinter Dealer for this
purpose. In particular, work relevant to
safety or on safety-related systems must
Continued
Warning (Continued)
G
be carried out at an authorized Sprinter
Dealer. If this work is carried out incor-
rectly, the operating safety of the heater
can no longer be guaranteed and there is
a risk of accident and injury.
nf_BA.book Page 453 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
Page 457 of 666
455 Practical hints
What to do if ...
5
The auxiliary heating does not switch on or the
engine does not start
WARNING
G
The auxiliary heating has overheated about ten
times in succession.
The engine or heater is malfunctioning.
\1Have the auxiliary heating checked at
an authorized Sprinter Dealer.
The heater has overheated.
The coolant level is too low.
\1Check the coolant level and add coolant
if necessary (\2page 329).
Problem
Possible cause / result
Suggested solutions
nf_BA.book Page 455 Friday, January 25, 2008 3:53 PM
Page 460 of 666

458 Practical hintsWhat to do if ...
5
Problem
Possible cause / result
Suggested solutions
One or both of the indicator lamps in the
switch for the seat heating * are
flashing.
There is insufficient voltage available as
too many consumers are switched on.
The seat heating has been switched off
automatically.
\1
Switch off all non-essential con-
sumers, for example the reading
lamps, interior lighting, etc.
The seat heating will switch back
on automatically as soon as there
is sufficient voltage again.
The indicator lamps in the switches for the
windshield heating P* and/or rear win-
dow heating F* are flashing.
There is insufficient voltage available as too
many consumers are switched on.
The windshield heating and / or rear window
heating have switched off automatically.
\1Switch off all non-essential consumers,
for example the reading lamps, interior
lighting, etc.
If sufficient voltage is available again
within 30 seconds, the windshield
heating and / or rear window heating
switch on again automatically, they re-
main switched off.
nf_BA.book Page 458 Friday, January 25, 2008 3:53 PM
Page 541 of 666

539 Practical hints
Changing the batteries
5
\3 Changing the batteriesIf the remote control batteries (remote
keyless entry) are discharged, you will
only be able to lock and unlock the vehi-
cle manually using the key.
If the batteries in the auxiliary heating
remote control are discharged, you will
only be able to switch the auxiliary heat-
ing on or off using the auxiliary heating /
heater booster switch inside the vehicle
(\2
page 238).
It is advisable to have the batteries
changed at an authorized Sprinter Deal-
er.
Warning
G
Keep batteries away from children.
Consult a doctor immediately if a battery
is swallowed.
Dispose of used batteries in an environ-
mentally responsible manner.
Danger of explosion if the battery is not
correctly replaced.
Replacements should always be either of
the same type or one which has been rec-
ommended by the manufacturer.
Environmental note
H
Batteries contain materials that can harm
the environment if disposed of improper-
ly. Recycling of batteries is the preferred
method of disposal. Many states require
sellers of batteries to accept old batteries
for recycling.
nf_BA.book Page 539 Friday, January 25, 2008 3:53 PM