towing MERCEDES-BENZ SPRINTER 2012 MY12 Operator’s Manual

Towing a trailer
Notes on trailer towing Important safety notes
The trailer coupling is one of the most
important vehicle parts with regard to road
safety. The notes on operation, care and
maintenance issued by the manufacturer
should be observed.
G
Warning!
Improper equipment or driving technique
while driving with a trailer can cause you to
lose control of your vehicle.
Improper towing or failure to observe the
Operator's Manual can lead to vehicle
damage and/or serious
injuries. Observe the
following guidelines in order to guarantee safe
driving with trailers.
Contact an authorized Sprinter Dealer if you
require any explanation of the information
contained in the Operator's Manual.
General notes
R Install only an approved trailer coupling on
your vehicle.
Further information about availability and
installation of trailer couplings can be
obtained from any authorized Sprinter
Dealer.
R The bumpers of your vehicle are not
suitable for installing detachable trailer
couplings.
R Do not install rented trailer couplings or
other detachable trailer couplings to the
bumpers.
R To reduce the risk of damage to the ball
coupling when using a detachable trailer
coupling, remove the ball coupling from its
mounting when it is not needed.
Coupling up a trailer Observe the maximum permissible trailer
dimensions (width and length). Most federal states and all Canadian
provinces require by law:
R
safety chains between the towing vehicle
and the
trailer.

The chains should be cross-
wound under the trailer drawbar. They must
be fastened to the vehicle's trailer
coupling, not to the bumper or the axle.
Allow for enough play in the chains to
facilitate turning tight corners.
R a separate brake system for certain types
of trailer.
R a safety switch for braked trailers. Check
the specific legal requirements applicable
to your federal state.
If the trailer detaches from the towing
vehicle, the safety switch applies the
trailer's brakes.
i The vehicle's subharness has an electric
cable to the brake light indicator lamp. G
Warning
Follow the manufacturer's operating
instructions for the trailer tow hitch when
using a detachable trailer tow hitch.
Couple and decouple the trailer carefully. A
trailer which is incorrectly coupled to the
towing vehicle could break away. A correctly
coupled trailer must be positioned
horizontally behind the vehicle.
Ensure that the following weights are not
exceeded:
R the permissible noseweight
R the permissible trailer load
R the permissible rear

axle load of the towing
vehicle
R the permissible gross weight for both the
towing vehicle and the trailer
The permissible values, which must not be
exceeded, can be found in your vehicle
documents and on the trailer tow hitch type
plates for the trailer and the vehicle. Where
the values differ, the lowest is valid. 150
Transporting loads with the vehicle
Operation

X
Make sure that the automatic transmission
is set to position P.
X Engage the vehicle's parking brake.
X Close the rear doors.
X Couple the trailer.
X Establish all electrical connections. Trailer coupled ready for use
Towing a trailer
There are numerous legal requirements
concerning the
towing
of a trailer, e.g. speed
restrictions. Make sure that your vehicle/
trailer combination complies with the local
requirements not only in your area of
residence but also at any location to which
you are traveling. The police and local
authorities can provide reliable information.
Please observe the following when towing a
trailer:
R To acquaint yourself with driving with a
trailer and with the resulting changes to
handling, you should practice cornering,
stopping and reversing in a traffic-free
location.
R Before driving, check:
-trailer coupling
- safety switch for braked trailers
- safety chains
- electrical connection
- lights
- wheels R
Adjust the exterior mirrors to provide an
unobstructed view of

the rear section of the
trailer.
R If the trailer has electronically controlled
brakes, pull away slowly, brake manually
using the brake controller and check that
the brakes are functional.
R Secure any objects on the trailer to prevent
the cargo from slipping when the vehicle is
in motion.
R If you couple up a trailer, regularly check
that the cargo is secure and make sure that
the trailer lamps and (if applicable) the
trailer brakes are functioning correctly.
R Bear in mind that the handling will be less
stable when towing a trailer than when
driving without one. Avoid sudden steering
movements.
R The vehicle/trailer combination is heavier,
accelerates more slowly and has a
decreased gradient climbing capability and
a longer braking distance.
It is more susceptible to crosswinds and
requires cautious steering.
R If possible, do not brake abruptly; apply the
brakes moderately to begin with to allow
the trailer to activate its brakes. Then
increase the pressure on the brake pedal.
R If the automatic transmission repeatedly
shifts between gears when driving on
inclines, restrict the shift range. Select shift
range 4, 3, 2 or 1.
Driving in a low gear and at a low speed
reduces the risk of damaging the engine.
R When driving on a downhill gradient, shift
to a low gear and take advantage of the
engine's braking effect.
Avoid continuous brake application as this
may overheat the vehicle brakes and, if
installed, the trailer brakes.
R If the coolant temperature increases
dramatically while the air-conditioning
system is switched on, switch off the air-
conditioning system. Transporting loads with the vehicle
151
Operation Z

Verify compliance with weight limitations on
a weighbridge.
Trailer power supply
Your vehicle may be equipped with various
electrical fittings for trailer towing.
Depending on your trailer, you may need an
adapter to allow your trailer to be connected
to the vehicle. Information about your
vehicle's electrical equipment is available
from any authorized Sprinter Dealer.
!
Faulty wiring of the connector plug could
in certain circumstances cause other
electronic systems to
malfunction. For this
reason, we recommend having the wiring
of the connector plug performed at an
authorized Sprinter Dealer. Operation in winter
General notes
Have your vehicle winterized at a qualified
specialist workshop, e.g. an authorized
Sprinter Dealer, at the onset of winter.
This service includes the following:
R oil change, if the engine oil currently used
does not have adequate low temperature
characteristics or if these are no longer
sufficient due to aging
R the antifreeze/anticorrosion
concentration in the coolant is checked.
R the addition of a concentrated cleaning
agent to the water in the windshield
washer/headlamp cleaning system
R battery check
R a tire change
Prior to the

onset of winter, ensure that snow
chains are available in the vehicle.
Do not cover the surface of the radiator or the
radiator grill, even in winter. Doing so could
cause the engine diagnostics to record false
or incorrect data. Recording of engine
diagnostic data is legally prescribed and must therefore be correct, clear and
comprehensible at all times.
You
will find

information about diesel fuel for
use at low outside temperatures in the
"Operation" section ( Y page 154).
Please also observe the information about
winter driving (Y page 111).
You will find information about winter tires
and about driving with snow chains in the
"Wheel and tires" section (Y page 153). Service products
Fuel
G
Warning
Fuel is highly flammable. Fire, naked flames
and smoking as well as the use of auxiliary
heaters (sparks) are therefore prohibited
when handling fuel.
Switch off the

engine and the auxiliary heating
before refueling. G
Warning
Avoid any contact with fuels.
You can damage your health if your skin
comes into direct contact with fuel or if you
inhale fuel vapors.
! Filter the fuel

before transferring it to the
vehicle if you are refueling the vehicle from
barrels or containers.
This will prevent malfunctions in the fuel
system due to contaminated fuel.
! Refuel only with commercially available
vehicle diesel fuel, ULTRA-LOW SULFUR
DIESEL with a sulfur content no greater
than 15 ppm. Fuels such as fatty acid
methyl ester FAME (bio-diesel fuels),
marine diesel, heating oil etc. may not be
used as a diesel fuel mixture.
Refuel with B5 bio-diesel only if it fulfills the
requirements listed under "Fuel quality". Service products
153
Operation Z

Vehicle equipment ............................
182
Where will I find...? ........................... 182
Troubleshooting ................................ 187
Engine ................................................ 221
Wheels and tires ............................... 221
Electrical system .............................. 233
Batteries for the remote control .....245
Automatic transmission ................... 246
Jump starting, tow-starting and
towing away ...................................... 247 181Practical advice

Vehicle equipment
i Diese Betriebsanleitung beschreibt alle
Modelle, Serien- und
Sonderausstattungen
Ihres Fahrzeugs, die zum Zeitpunkt des
Redaktionsschlusses dieser
Betriebsanleitung erhältlich waren.
Länderspezifische Abweichungen sind
möglich. Beachten Sie, dass Ihr Fahrzeug
nicht mit allen beschriebenen Funktionen
ausgestattet sein könnte. Dies betrifft auch
sicherheitsrelevante Systeme und
Funktionen. Where will I find...?
Vehicle tool kit and emergency
equipment
The jack and the vehicle tool kit are located
in the co-driver's footwell. G
Warning
To reduce the risk of serious or fatal injuries
and to avoid damage to the vehicle, observe
the following:
R the jack is

designed only to raise the vehicle
for a short time, e.g. while a wheel is being
changed.
It is not designed to enable work to be
carried out underneath the vehicle.
R the jack must be placed on a firm, level
surface.
R never change a wheel on uphill or downhill
gradients.
R never lie under the raised vehicle.
R make sure that no persons are present in
the vehicle when the vehicle is raised.
R never start the engine when the vehicle is
raised. R
make sure that the distance between the
underside
of the

tires and the ground does
not exceed 1.2 in(30 mm).
R if you intend to work under the vehicle,
place the vehicle on stands. X
To unlock: turn quick-release fastener
0046
counter-clockwise or clockwise 004B.
X Remove the cover.
X To lock: press quick-release lock
0046 down
until it engages. X
If necessary, use tool 5
008A for the DEF tank
fuel filler cap to remove the fixture.
X Remove vehicle tool kit 0087.
X Pull up quick-release lever 0088 and unhook
the retaining strap of jack 0086.
X Lift jack 0086 upwards out of the holder.
i When stowing away the jack, place it in
the holder as shown in the illustration.
Make sure that the retaining strap of the
jack is hooked in and tensioned.
5 Chassis only.182
Where will I find...?
Practical advice

Warning lamp
The warning lamp is behind the cover in the
storage compartment of the driver's door. 004A
Locked
004B Unlocked X
Unlock quick-release fasteners
004B
and fold
out the cover.
X Take warning lamp 008A

out of the retainer. Warning triangle
Warning triangles at the back of the driver's seat
base
0046
Warning triangles
X Pull warning
triangles
0046 up and
out of the
holder. Wheel chock
Cargo Van/Passenger Van Wheel chock in the load/passenger compartment
X
Pull restraining cable 0046 down slightly and
then remove it from bracket 0047
.
X Remove the chock.
i When stowing
it

away, make sure that the
chock is secured in the retainer by the
restraining cable. Where will I find...?
183
Practical advice Z

Chassis Cab
Wheel chock on the left-hand side of the vehicle
X
Pull the retainer spring downwards and
remove the chock.
i When stowing it
away, make sure that the
chock is secured in the retainer by the
retainer springs. First-aid kit
The first-aid kit is located in the stowage
compartment in the co-driver's door. 004A
Locked
004B Unlocked 008A
First-aid kit
X Unlock quick-release fasteners 004B and fold
out the cover.
i Check the expiration date of the first-aid
kit annually,
and
replace the contents when
necessary. Fire extinguisher
Fire extinguisher at the front of the base of the co-
driver's seat
X
Pull shackles 0047 upwards.
X Take fire extinguisher 0046 out of its holder.
i Please read the instructions on the fire
extinguisher carefully and familiarize
yourself with its operation. Tire sealant
The Premium tire sealant is located in the
stowage compartment in

the right-hand door
sill. 184
Where will I find...?
Practical advice

Problem Possible causes/consequences and
0050 Solutions009E 0031 003D 0065
The yellow ESP
®
, ABS
and ASR/BAS warning
lamps, and the red
brake system warning
lamp light up while the
engine is running. G
Warning!
EBD has been deactivated due to undervoltage.
It is possible that the battery is not being charged.
The rear wheels
could lock sooner than expected when you apply
the brakes.
X On vehicles with steering wheel buttons, also observe the
messages in the display ( Y page 197).
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. 0065
The red brake
system indicator
lamp is lit while
the engine is
running. A
warning tone
also sounds. G
Warning!
There is insufficient brake fluid in the supply reservoir.
X On vehicles with steering wheel buttons, also observe the
messages in the display ( Y page 197).
X Stop the vehicle as soon as possible, paying attention to road
and traffic conditions.
X Check the brake fluid level in the supply reservoir
(

Y page 170).
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
warning lamp is
lit while the
engine is
running.
A warning tone
also 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.
X On vehicles with steering wheel buttons, also observe the
messages in the display ( Y page 197).
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.188
Troubleshooting
Practical advice

Problem Possible causes/consequences and
0050 Solutions00B4
The yellow
engine oil level
warning lamp
lights up
repeatedly while
the vehicle is in
motion. There is a malfunction in the engine oil level display.
X
Have the vehicle checked immediately at a qualified specialist
workshop. 0041
The yellow
coolant level
warning lamp
lights up while
the engine is
running. The coolant level is too low.
Never run the engine if the coolant level is too low. The engine
could overheat and be damaged.
X
Stop the vehicle as soon as possible, paying attention to road
and traffic conditions.
X Switch off the engine and let it cool down.
X Add coolant and be sure to observe the warning notes
(Y page 169).
X If you need to add coolant frequently, have the cooling system
checked at a qualified specialist workshop. 00AE
The red coolant
warning lamp
lights up while
the engine is
running. 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. 00AE
The red coolant
warning lamp
lights up while
the engine is
running. The coolant temperature is too high.
If the vehicle is stopped after being subjected to extreme loads
(e.g. driving in mountainous terrain, trailer towing), the coolant
warning lamp may
light up when the ignition is switched on or the
engine is restarted.
X Run the engine for approximately one minute at idling speed.
X Consult a qualified specialist workshop if the coolant warning
lamp remains lit. 00B7
0080
The yellow
reserve fuel
warning lamp
lights up while
driving. The fuel level has fallen into the reserve range.
X
Refuel at the nearest gas station ( Y page 142). Troubleshooting
193
Practical advice Z

Display messages Possible causes/consequences and
0050 Solutions0065
Brake force
distribution G
Warning!
EBD has been deactivated due to undervoltage.
The battery might not be charging.
The rear wheels
could lock sooner than expected when you apply
the brakes.
X Pull over immediately, paying attention to road and traffic
conditions.
X Do not continue driving.
X Visit a qualified specialist workshop. 0065
Brake force
distribution Visit
workshop G
Warning!
EBD has malfunctioned.
The rear wheels
could lock sooner than expected when you apply
the brakes.
X Pull over immediately, paying attention to road and traffic
conditions.
X Do not continue driving.
X Consult a qualified specialist workshop. 0066
Parking brake
Release brake A warning tone also sounds.
You are driving with the parking brake applied.
X
Release the parking brake ( Y page 112).0082
Seatbelt sys.
Visit workshop G
Warning!
The belt system has malfunctioned.
X Visit a qualified specialist workshop as soon as possible. 00AE
Coolant Stop,
turn
engine off The coolant temperature is too high.
X
Pull over immediately, paying attention to road and traffic
conditions.
X Consult a qualified specialist workshop. 00AE
Coolant Stop,
turn
engine off The coolant temperature is too high.
If the vehicle is stopped after being subjected to extreme loads
(e.g. driving in mountainous terrain, trailer towing, etc.), this
display message may be shown when the ignition is switched on
or the engine is restarted.
X
Run the engine for approximately one minute at idling speed.
X Consult a qualified specialist workshop if the display message
continues to be shown.206
Troubleshooting
Practical advice