2015 MERCEDES-BENZ SPRINTER alternator

Problem
Possible causes/consequences and
0050
0050Solutions The low-voltage protection system integrated in the control unit
switches off the auxiliary heating because the on-board voltage is
less than 10 V.
X Have the alternator and battery checked.
or The fuse is blown.
X Replace the fuse; see the "Fuse allocation" supplement.
X Have the cause of the blown fuse determined at a qualified spe-
cialist workshop.
or A malfunction has occurred.
X Switch the ignition on and off twice.
If the auxiliary heating still cannot be switched on, the heating
device is faulty.
X Have the auxiliary heating checked at a qualified specialist
workshop. The auxiliary heating is
overheated. The coolant level is too low.
X Check the coolant level and add more coolant if necessary
(Y page 253). Operating the cargo compartment air
vents If your vehicle is equipped with a roof venti-
lator, you can ventilate and extract air from
the cargo compartment. X
Turn the key to position 2in the ignition
lock.
X To activate and extract air: press the
upper section of the 00A8switch.
The roof ventilator removes used air from
the cargo compartment.
X To activate and ventilate: press the lower
section of the 00A7switch.
The roof ventilator feeds fresh air into the
cargo compartment.
X To switch off: set the switch to the middle
position. Operating the cargo compartment air vents
133Climate control Z

Display messages
Possible causes/consequences and
0050
0050Solutions Check tire(s)
Check tire(s)
0054 The pressure of one or more tires has dropped significantly. If the
tire pressure monitor has detected the affected wheel, the wheel
position is also displayed.
X Stop the vehicle as soon as possible, paying attention to road
and traffic conditions.
X Check the tires.
X Repair or change the wheel if necessary (Y page 305).
X Check the tire pressure and correct it if necessary
(Y page 291).
The display message disappears automatically after driving for a
few minutes with the corrected tire pressure. Warning Warning
Tire
Tiredefect
defect
0054 One or more tires is losing air rapidly. If the tire pressure monitor
has detected the affected wheel, the wheel position is also dis-
played.
X Stop the vehicle without making any sudden steering or braking
maneuvers, paying attention to the traffic conditions as you do so.
X Repair or change the wheel (Y page 305).Vehicle
Display messages
Possible causes/consequences and
0050 0050Solutions 003D
Battery/Alterna‐ Battery/Alterna‐
tor Visit workshop tor Visit workshop The battery is not being charged. Possible causes are a defective
alternator or a torn poly-V-belt.
X Stop the vehicle as soon as possible, paying attention to road
and traffic conditions.
X Check the poly-V-belt.
X If the poly-V-belt is torn: do not continue driving. Consult a
qualified specialist workshop.
X If the poly-V-belt is not damaged: have the vehicle checked as
soon as possible by a qualified specialist workshop. 00E6
Electrical Step Electrical Step The electrical step has retracted or extended only partially or not
at all.
X Make sure there is sufficient free space for the electrical step.
X Open or close the sliding door again.
X If the electrical step still does not extend or retract fully, push
the step in manually (Y page 74). Before stepping out, remind
the passengers that the step is missing. 216
Display
messagesOn-board computer and displays

Problem
Possible causes/consequences and
0050
0050Solutions 0075
The red warning
lamp does not
go out approx-
imately
4 seconds after
the ignition is
switched on, or
it lights up again. The restraint systems have malfunctioned.
G WARNING
If the restraint systems are malfunctioning, individual systems
could be triggered inadvertently or might not be triggered at all in
the event of an accident.
There is an increased risk of injury and accidents.
X Drive on with care.
X Visit a qualified specialist workshop immediately. 003D
The red battery
indicator lamp is
lit while the
engine is run-
ning. The battery is not being charged. Possible causes are a defective
alternator or a torn poly-V-belt.
X Stop the vehicle as soon as possible, paying attention to road
and traffic conditions.
X Check the poly-V-belt.
X If the poly-V-belt is torn: do not continue driving. Consult the
nearest qualified specialist workshop.
X If the poly-V-belt is not damaged: have the vehicle checked as
soon as possible by a qualified specialist workshop. 003D
The red battery
indicator lamp is
lit while the
engine is run-
ning. The battery is faulty.
X Stop the vehicle as soon as possible, paying attention to road
and traffic conditions.
X Do not continue driving under any circumstances.
X Consult a qualified specialist workshop. 0026
The yellow brake
pad wear indica-
tor lamp is lit
after the engine
is started or
while the vehicle
is in motion. The brake pads/linings have reached their wear limit.
G WARNING
Braking performance can be impaired.
There is a risk of an accident. X Have the brake pads/linings replaced as soon as possible at a
qualified specialist workshop. 00B2
The yellow
engine oil level
warning lamp is
lit after the
engine is started
or while the vehi-
cle is in motion. The oil level has dropped to the minimum level.
X Check the engine for oil loss.
X If oil loss is detected: consult a qualified specialist workshop
immediately.
X If no oil loss is detected: check the oil level and add engine oil
(Y page 251). 222
Indicator and warning lamps in the instrument clusterOn-board computer and displays

Example: 6-cylinder diesel engine
For vehicles with a red oil dipstick, only checkthe oil level when the engine is at normal
operating temperature:
X Stop your vehicle as far away from traffic as
possible on level ground.
X Secure the vehicle to prevent it from rolling
away.
X Switch off the engine.
X Wait 5 minutes.
For vehicles with a yellow oil dipstick, only
check the oil level when the engine is cold.
X Stop your vehicle as far away from traffic as
possible on level ground.
X Secure the vehicle to prevent it from rolling
away.
X Open the hood (Y page 248).
X Pull out oil dipstick 0043.
X Wipe oil dipstick 0043using a lint-free cloth.
X Insert oil dipstick 0043back into the guide
tube as far as it will go and remove it again.
If the level is between minimum mark 0087
and maximum mark 0044, the oil level is cor-
rect.
X If the oil level has dropped to or below min-
imum mark 0087, open cap 0085and add
engine oil (Y page 252).
The difference in quantity between
marks 0044and 0087is approximately
2 US quarts (2 liters).
X Insert the oil dipstick into the guide tube as
far as it will go.
X Close the hood (Y page 249). OM651 4-cylinder diesel engine:
At outside temperatures between 32 ‡
(–0 †) and 86 ‡ (30 †), the oil level can be
checked when the engine is cold.
Measuring the engine oil when the engine is
cold is less precise than measuring when the
engine is at normal operating temperature.
When the appropriate warning is shown in the
display
X Add engine oil (Y page 252)
or X Have engine oil siphoned off.
Add engine oil G
WARNING
If engine oil comes into contact with hot com- ponents in the engine compartment, it may
ignite. There is a risk of fire and injury.
Make sure that engine oil is not spilled next to
the filler neck. Let the engine cool down and
thoroughly clean the engine oil off the com-
ponents before starting the engine.
! The alternator is located below the engine
oil filler neck. If engine oil spills onto the
alternator, there is a danger of alternator
damage. Be very careful when adding
engine oil. H
Environmental note
When adding oil, take care not to spill any. If
oil enters the soil or waterways, it is harmful to the environment.
! Do not add too much oil. adding too much
engine oil can result in damage to the
engine or to the catalytic converter. Have
excess engine oil siphoned off.
! Do not use any additives in the engine oil.
This could damage the engine.
X Open the hood (Y page 248).
X Unscrew and remove cap 0085.
X Add engine oil. 252
Engine compartmentMaintenance and care

otherwise destroy electronic components
such as the alternator.
Always disconnect the starter battery in the battery case in the driver's footwell first.
! Always disconnect the battery in
the order described below. Never swap the
terminal clamps. You may otherwise dam-
age the vehicle electronics.
If the vehicle is expected to be out of use for over 3 weeks, disconnect the batteries. This
will prevent battery discharge caused by off-
load current consumption. Battery cover in the driver's footwell
X Switch off all electrical consumers.
X Switch off the engine and remove the key
from the ignition lock.
X Remove the floor covering in the driver's
footwell (Y page 260).
X Loosen screws 0044and slide battery
cover 0043in the direction of the arrow.
The screws must protrude beyond the
larger recesses.
X Remove battery cover 0043upwards. Starter battery in the driver's footwell
X First loosen and remove the negative ter-
minal clamp so that it is no longer in contact
with the terminal.
X Remove the cover from the positive termi-
nal.
X Loosen the positive terminal clamp and fold
it up to the side together with the pre-fuse
box.
Reconnecting the starter battery !
Always connect the battery in the order
described below. Never swap the terminal
clamps. You may otherwise damage the
vehicle electronics.
X Fold the positive terminal clamp with the
pre-fuse box down to the terminal.
X Connect the positive terminal clamp.
X Attach the cover to the positive terminal.
X Connect the negative terminal clamp.
X Position battery cover 0043so that screws 0044
are positioned over the large recesses.
X Slide battery cover 0043in the direction of
travel into the smaller recesses.
X Tighten screws 0044.
X Install the floor covering in the driver's foot-
well (Y page 260).
Carry out the following work after connecting
the battery:
X Reset the side windows (Y page 79). Battery
261Maintenance and care Z

R
It is particularly important to observe the
described order when connecting and dis-
connecting the jumper cables.
R Never connect or disconnect the battery
terminals while the engine is running.
Disconnecting the additional battery !
Switch off the engine and remove the key
from the ignition lock before you loosen or disconnect the terminal clamps. You may
otherwise destroy electronic components
such as the alternator.
Always disconnect the starter battery in the
battery case in the driver's footwell first.
! Always disconnect the battery in
the order described below. Never swap the terminal clamps. You may otherwise dam-
age the vehicle electronics. Additional battery in the engine compartment
X Switch off all electrical consumers.
X Switch off the engine and remove the key
from the ignition lock.
X Open the hood (Y page 248).
X First loosen and remove the negative ter-
minal clamp so that it is no longer in contact
with the terminal.
X Remove the cover from the positive termi-
nal.
X Loosen and remove the positive terminal
clamp. Connecting the additional battery !
Always connect the battery in the order
described below. Never swap the terminal
clamps. You may otherwise damage the
vehicle electronics.
X Connect the positive terminal clamp.
X Attach the cover to the positive terminal.
X Connect the negative terminal clamp.
X Close the hood.
Carry out the following work after connecting
the battery:
X Reset the side windows (Y page 79). Installing and removing the additional
battery (engine compartment)
Removing the additional battery X
Disconnect the battery (Y page 262).
X Loosen the bolts holding the retainer that
prevents the battery from moving around.
X Remove the battery holder and take out the
battery.
Installing the additional battery X
Insert the battery into the battery case.
X Insert the battery holder.
X Tighten the bolts holding the retainer that
prevents the battery in the engine com-
partment from moving around.
X Connect the battery (Y page 262). Charging
G
WARNING
A discharged battery can freeze at tempera-
tures below freezing point. When jump-start-
ing the vehicle or charging the battery, gases can escape from the battery. There is a risk of
an explosion.
Allow the frozen battery to thaw out before
charging it or jump-starting. Battery
263Maintenance and care Z