2014 MERCEDES-BENZ SPRINTER trailer

tion consists of the towing vehicle including
the driver, passengers and load, as well as
the loaded trailer.
R Check the maximum permissible gross axle
weight rating of the front and rear axles
(GAWR), the gross trailer weight (GTW), the
gross combination weight rating (GCWR)
and the noseweight of the trailer drawbar
(TWR). Trailer power supply
! Incorrect wiring of the connector plug
could, under certain circumstances, cause
malfunctions in the vehicle's other elec-
tronic systems. We therefore recommend
having the connector plug wired at a quali-
fied specialist workshop.
! You can connect accessories with a max-
imum power consumption of 240 W to the
permanent power supply.
You must not charge a trailer battery using
the power supply.
Your vehicle may be equipped with various
electrical installations for trailer towing.
Depending on your trailer, you may need an
adapter to connect the electrical system of
the trailer with that of the vehicle.
The trailer socket of your vehicle is equipped
at the factory with a permanent power supply.
The permanent power supply is on the trailer
socket pin assignment 4.
Note that the permanent power supply of the
trailer is not switched off when the on-board
voltage is low. This can completely discharge
the starter battery of your vehicle.
The turn signals on the trailer are only guar-
anteed to function when incandescent bulbs
are used.
Further information on the electrical equip-
ment currently installed on your vehicle and
on installing trailer electrics can be obtained
at any qualified specialist workshop. Towing a trailer
179Driving and parking Z

Display messages Possible causes/consequences and
0050
0050Solutions 00E2
XX XX
starts
starts remaining
remaining The Diesel Exhaust Fluid (DEF) supply has dropped below the
0.8 US gal (3.0 l) reserve mark.
After the message appears for the first time, the remaining DEF
supply will last for approximately 1000 miles (1600 km). The
engine can then only be started another 16 times.
The number of remaining engine starts
XX XX(1616 to0
0) is shown in the
message every time the engine is started. If the number displayed
is 0 0, the yellow 00B9Check Engine indicator lamp also lights up
and you can only drive the vehicle at a maximum 5 mph
(8 km/h).
X Add at least 2.0 US gal (7.6 l) of DEF (Y page 149).
The display message disappears no more than 20 seconds after
the vehicle has stopped or you have switched on the ignition or
started the engine after refueling. 00E2
Idle Mode Idle Mode In addition, the yellow
00B9Check Engine indicator lamp lights
up.
The vehicle cannot be driven at a speed exceeding 5 mph
(8 km/h). The DEF reducing agent is contaminated, diluted or is not compli-
ant with ISO 22241.
X
Have the DEF tank cleaned and refilled at a qualified specialist
workshop immediately. The exhaust gas aftertreatment is malfunctioning or an emission
relevant malfunction has occurred. This malfunction or defect can
damage the exhaust gas aftertreatment.
X
Visit a qualified specialist workshop immediately. 00AC
Coolant Coolant
Stop,
Stop,turn
turn
engine off
engine off The coolant temperature is too high.
X
Stop the vehicle as soon as possible, paying attention to road
and traffic conditions.
X Consult a qualified specialist workshop. 00AC
Coolant Coolant
Stop,
Stop,turn
turn
engine off
engine off The coolant temperature is too high.
If the vehicle is stopped after being subjected to extreme loads,
the coolant warning lamp may come on when the ignition is
switched on or the engine is restarted. Such loads can be, for
example, driving in mountainous terrain or driving with a trailer.
X
Run the engine for approximately 1 minute at idling speed.
X Consult a qualified specialist workshop if the display message
continues to be shown. 214
Display
messagesOn-board computer and displays

Problem Possible causes/consequences and
0050
0050Solutions 0065
The red brake
system indicator
lamp is lit while
the engine is
running. There is insufficient brake fluid in the expansion tank.
G WARNING
Braking performance can be impaired.
There is a risk of an accident.
X Vehicles with steering wheel buttons: also observe the mes-
sages in the display (Y page 199).
X Stop the vehicle as soon as possible, paying attention to road
and traffic conditions.
X Check the brake fluid level in the expansion tank
(Y page 256).
X If the brake fluid is below the MIN mark: do not drive on!
X Do not add brake fluid. This does not solve the problem.
X Consult a qualified specialist workshop. 0065
When towing a
trailer: the red
brake system
indicator lamp is
lit while the
engine is run-
ning.
Additionally, a
warning tone
sounds. G
WARNING
The brake force booster in the trailer is faulty.
The driving and braking characteristics of your vehicle could
change. There is a risk of the trailer overbraking and of you losing
control over the truck/trailer combination.
There is a risk of an accident.
X Vehicles with steering wheel buttons: also observe the mes-
sages in the display (Y page 199).
X Stop the vehicle as soon as possible, paying attention to road
and traffic conditions.
X Do not drive on.
X Consult a qualified specialist workshop. 003D
The yellow ASR/
BAS indicator
lamp is lit while
the engine is
running. ASR has been deactivated due to a malfunction.
The engine power output may be reduced.
G WARNING
The driven wheels can spin when accelerating.
There is an increased risk of skidding and accidents.
X Drive on with care.
X Consult a qualified specialist workshop as soon as possible. 222
Indicator and warning lamps in the instrument clusterOn-board computer and displays

Problem Possible causes/consequences and
0050
0050Solutions 00AC
The red coolant
warning lamp is
lit while the
engine is run-
ning. The coolant temperature is too high.
X
Stop the vehicle as soon as possible, paying attention to road
and traffic conditions.
X Consult a qualified specialist workshop. 00AC
The red coolant
warning lamp is
lit while the
engine is run-
ning. The coolant temperature is too high.
If the vehicle is stopped after being subjected to extreme loads,
the coolant warning lamp may come on when the ignition is
switched on or the engine is restarted. Such loads can be, for
example, driving in mountainous terrain or driving with a trailer.
X
Run the engine for approximately 1 minute at idling speed.
X Consult a qualified specialist workshop if the display message
continues to be shown. 00B5
0077
The yellow
reserve fuel
warning lamp is
on. At the same
time,
0 0, appears
in the fuel tank
content display
while the engine
is running,
although there is
fuel in the fuel
tank. The fuel filler cap is not closed.
X
Close the fuel filler cap.
You will hear a click when the fuel filler cap is closed fully.
X If the malfunction continues to be displayed, have it rectified
immediately at a qualified specialist workshop. 00B9
The yellow
engine diagnos-
tic indicator
lamp is lit up or
flashes while the
engine is run-
ning. You have used up all fuel in the tank.
The engine is running in emergency mode.
X
Refuel at the nearest gas station (Y page 148).
X Bleed the fuel system (Y page 143).
X Start the engine three to four times in succession after refueling.
Emergency running mode will be canceled. The vehicle does not
need to be checked. 00B9
The yellow
engine diagnos-
tic indicator
lamp is lit up or
flashes while the
engine is run-
ning. The injection control is malfunctioning.
The engine is running in emergency mode.
Engine power output may be reduced.
X
Have the vehicle checked at a qualified specialist workshop as
soon as possible.
In some states it is legally prescribed that after the check engine
indicator lamp lights up you must contact a qualified specialist
workshop immediately. Observe the legal requirements. Indicator and warning lamps in the instrument cluster
227On-board computer and displays Z

Problem Possible causes/consequences and
0050
0050Solutions 0076
If you turn the
key in the igni-
tion lock to posi-
tion2, the red
seat belt warn-
ing lamp lights
up for approx-
imately
6 seconds. The warning lamp is to remind you to fasten your seat belt.
X
Fasten seat belt (Y page 48).0049
When the key is
turned to posi-
tion2in the igni-
tion lock, the
yellow bulb
warning lamp
lights up. One of the exterior lighting bulbs is faulty, with the exception of
the perimeter lamps and the trailer lighting.
i
Depending on the equipment, the bulb failure indicator can fail
for all lamps with the exception of the turn signal lamps.
X Replace the faulty bulb as soon as possible (Y page 100).003E
The yellow "door
open" indicator
lamp is lit while
driving. The vehicle is moving without all doors or the hood being closed.
X
Close the doors or hood. 003E
The yellow "door
open" indicator
lamp is lit. 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. 230
Indicator and warning lamps in the instrument clusterOn-board computer and displays

X
Clean all sensors 0043in the front and rear
bumpers with water, shampoo and a soft
cloth.
Cleaning the rear view camera !
Do not use dry, coarse or hard cloths and
do not scrub. Otherwise, you will scratch or
damage the lens of the rear-view camera.
If you clean the vehicle with a high-pressure
or steam cleaner, maintain a distance of at
least 1.650 cm from the rear-view camera.
Do not aim directly at the rear-view camera
or at the microphone opening on the under-
side of the rear-view camera. You could
otherwise damage the rear-view camera. Rear view camera in the middle of the roof above
the high-mounted brake lamp
0043 Camera lens
0044 Microphone openings
X Clean camera lens 0043with clear water and
a soft cloth.
Make sure that you do not apply any wax to
camera lens 0043when waxing the vehicle. If
necessary, remove the wax using water,
shampoo and a soft cloth.
Cleaning the sliding door X
Remove foreign objects from the vicinity of
the contact surfaces and contact pins of
the sliding door.
X Clean the contact surfaces and contact
pins with a mild cleaning agent and a soft
cloth. Do not oil or grease the contact plates and
contact pins.
Cleaning the electrical step Clean the electrical step at least once a
month. Make sure that no dirt accumulates in
the housing or on the step.
X
Extend the electrical step (Y page 73).
X Close the sliding door until the door lock
engages.
The electrical step remains extended for
cleaning.
X Clean the electrical step and the housing
with a power washer.
X After cleaning, spray the step guides on
each side with silicone spray when the
housing and electrical step are dry.
Do not use oil or grease as a lubricant.
X Retract the electric step.
Cleaning the trailer tow hitch !
Do not clean the ball coupling with a
power washer. Do not use solvents.
! Observe the notes on care in the Opera-
tor's Manual for the trailer tow hitch and
the ball coupling manufacturer.
You can also have the maintenance work on
the ball coupling and the trailer tow hitch car-
ried out by a qualified specialist workshop. Interior
Cleaning with a power washer !
When using liquids to clean the vehicle
interior, observe the following points:
R Under no circumstances use power
washers.
R Make sure that no fluids enter or remain
in gaps and cavities. Care
271Maintenance and care Z

R
Only use jumper cables that have a suffi-
cient cross-section and insulated terminal
clamps.
R If the battery is fully discharged, attach the
battery of another vehicle for a few minutes
before attempting to start. This charges the
empty battery a little.
R Make sure that the two vehicles do not
touch.
Make sure that:
R the jumper cables are not damaged.
R bare parts of the terminal clamps do not
come into contact with other metal parts
while the jumper cables are connected to
the battery.
R the jumper cables cannot come into con-
tact with parts such as the V-belt pulley or
the fan. These parts move when the engine
is started and while it is running.
i Jumper cables and further information
regarding jump starting can be obtained at
any qualified specialist workshop. Before connecting the jumper cables
On vehicles with a battery main switch, check
whether the battery main switch is switched
on (Y page 136).
X Apply the parking brake.
X Move the selector lever of the automatic
transmission to position P.
X Switch off all electrical consumers, e.g.
audio equipment, blower.
X Turn the key to position 0in the ignition
lock and remove it (Y page 137).
X Open the hood (Y page 250). Tow-starting and towing away
Important safety notes
G
WARNING
Functions relevant to safety are restricted or
no longer available if:
R the engine is not running.
R the brake system or the power steering is
malfunctioning.
R there is a malfunction in the voltage supply
or the vehicle's electrical system.
If your vehicle is being towed, much more
force may be necessary to steer or brake.
There is a risk of an accident.
In such cases, use a tow bar. Before towing,
make sure that the steering moves freely. G
WARNING
You can no longer steer the vehicle if the
steering wheel lock has been engaged. There
is a risk of an accident.
Always switch off the ignition when towing the
vehicle with a tow cable or a tow bar. G
WARNING
If the weight of the vehicle to be towed or tow-
started is greater than the permissible gross
weight of your vehicle:
R the towing eye could detach itself
R the vehicle/trailer combination could roll-
over.
There is a risk of an accident.
When towing or tow-starting another vehicle,
its weight should not be greater than the per-
missible gross weight of your vehicle.
Information on your vehicle's gross vehicle
weight rating can be found on the vehicle
identification plate (Y page 319).
! Only secure the tow rope or tow bar at the
towing eyes. Otherwise, the vehicle could
be damaged. Tow-starting and towing away
279Breakdown assistance Z

!
Observe the following points when towing
with a tow rope:
R Secure the tow rope on the same side on
both vehicles.
R Ensure that the tow cable is not longer
than legally permitted. Mark the tow
cable in the middle, e.g. with a white
cloth (30 x 30 cm). This will make other
road users aware that the vehicle is being
towed.
R Only secure the tow cable to the towing
eye.
R Observe the brake lamps of the towing
vehicle while driving. Always maintain a
distance so that the tow rope does not
sag.
R Do not use steel cables or chains to tow
your vehicle. You could otherwise dam-
age the vehicle.
! Do not use the towing eye for recovery,
this could damage the vehicle. If in doubt,
recover the vehicle with a crane.
! When towing, pull away slowly and
smoothly. If the tractive power is too high,
the vehicles could be damaged.
Observe the legal requirements for the rele-
vant country when towing.
It is preferable to have the vehicle trans-
ported on a transporter or trailer instead of
towing it.
The automatic transmission selector lever
must be in the Nposition when towing the
vehicle.
The battery must be connected and charged.
Otherwise, you:
R cannot turn the key in the ignition lock to
position 2
R cannot move the selector lever to position
N on vehicles with automatic transmission.
i Switch off the automatic locking feature
before the vehicle is towed (Y page 71). You
could otherwise lock yourself out of the
vehicle when pushing or towing away the
vehicle. Installing/removing the towing eye
The fixture for the front towing eye is located in the
bumper.
Rear towing eye under the bumper, attached to the
chassis
Your vehicle may be equipped with rear tow-
ing eye 0044. If you tow or tow-start a vehicle,
attach the towing device to rear towing
eye 0044.
If your vehicle is equipped with a trailer tow
hitch, attach the towing device to the trailer
tow hitch (Y page 173).
Installing the front towing eye
X Take the towing eye and screwdriver from
the vehicle tool kit (Y page 276).
X Press cover 0043and remove cover 0043from
the opening.
You will see the fixture for the towing eye.
X Screw in the towing eye clockwise to the
stop.
X Insert screwdriver into the towing eye and
tighten it. 280
Tow-starting and towing awayBreakdown assistance