2017 MERCEDES-BENZ SPRINTER tow bar

the heater/air conditioning to the maximum
level. Open the windows if necessary.
RWhen overtaking, pay particular attention to
the extended length of your vehicle/trailer
combination.
Due to the length of your vehicle/trailer com-bination you need an additional distance
before you can return to your original lane.
Uncoupling a trailer
GWARNING
If you uncouple a trailer with the overrun
brake engaged, you could trap your hand
between the vehicle and the trailer drawbar.
There is a risk of injury.
Do not uncouple a trailer if the overrun brake
is engaged.
!Do not disconnect a trailer with an engaged
overrun brake. Otherwise, your vehicle could
be damaged by the rebounding of the overrun
brake.
XMake sure the selector lever of the automatic
transmission is in position P.
XApply the parking brake of the vehicle.
XClose all doors.
XApply the parking brake of the trailer.
XIn addition, secure the trailer against rolling
away with a wheel chock or similar object.
XRemove the trailer cable and safety chains
and decouple the trailer.
Permissible trailer loads and trailer
drawbar noseweights
Weight information
!On vehicles with a permissible gross vehicle
weight of 11030 lbs (5003 kg), the permissi -
bl egros scombin ation weight is less than the
total of the permissible gross vehicle weight
and the permissible trailer load. Exceeding
the permissible gross combination weight can
lead to damage to the drivetrain, to the trans-
mission or to the trailer tow hitch.
If the vehicle or the trailer is fully laden, the
relevant value for the permissible gross vehi-
cle weight or the permissible trailer load is therefore lower. In this case, the trailer or the
vehicle may only be partially loaded.
The gross trailer weight (GTW) is calculated by
adding the weight of the trailer to the weight of
the load and equipment. If the trailer is equipped with a separate functional braking system, then
the maximum gross trailer weight is 5000 lbs
(2268 kg )or 7500 lb s(3402 kg).
GWARNING
If you to w atrailer without aseparat efunc-
tional brakin gsystem and agross trailer
weigh t(GTW) of mor ethan 1635 lbs (750kg),
the nthe vehicl ebr ake system may overheat.
This increases the braking distance and the
brake system may even fail. There is an
increased risk of accident and injury, possibly
even fatal.
Always use a trailer with a separate functional
braking system when towing a trailer with a
gross trailer weight (GTW) of more than
1635 lbs (750kg).
Th emaximu mpermissibl etrailer dr awbar nose-
weight on the ball coupling is 500 lbs (227 kg) or
750 lbs (340 kg). The actual noseweight may not
exceed the value given on the identification
plates of the trailer tow hitch or the trailer. If the
values vary, the lowest value always applies.
The gross combination weight rating (GCWR) is
calculated by adding the gross weight of the
trailer to the gross vehicle weight including a
driver's weight of approximately 150 lbs (68 kg).
The maximum permissible gross combination
weight is vehicle-specific and equipment-
dependent.
When driving with a trailer, you should not
exceed the maximum permitted gross combi-
nation weight rating (GCWR).
The permissible values, which must not be
exceeded, can be found in your vehicle docu-
ments and on the trailer tow hitch type plates for the t
railer and the vehicle (Ypage 272). The
basic values approved by the manufacturer can
also be found in the "Technical data" section
(
Ypage 282). If the values vary, the lowest
value always applies.
156Towing a trailer
Driving and parking

Loading a trailer
!Utilize the maximum permissible nose-
weight as fully as possible. Do not allow the
weight to fall below the minimum permissible
noseweight, otherwise the trailer may come
loose.
RThe load must be distributed over the vehicle
and the trailer so as not to exceed either the
maximum permissible values for the gross
vehicle weight rating (GVWR) and gross trailer weight (GTW), the gross combination weight
rating (GCWR), nor the maximum permissible
gross axle weight rating (GAWR) and trailer
drawbar noseweight rating of your vehicle.
RAdd the drawbar noseweight on the ball cou-
pling (TWR) to the rear axle load. This will pre-
vent you from exceeding the permissible
gross axle weight (GAWR).
RAdd the drawbar noseweight on the ball cou-
pling (TWR) to the vehicle payload. This will
ensure that you do not exceed the permissi-
ble gross vehicle weight rating (GVWR).
Checking the vehicle and trailer weight
RMake sure the weights of the towing vehicle
and the trailer comply with the maximum per-missible values. Have the vehicle/trailer com-
bination weighed on a calibrated weigh-
bridge. The vehicle/trailer combination con-
sists of the towing vehicle including the driver,
passengers and load, as well as the loaded
trailer.
RCheck 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 malfunc-
tions in the vehicle's other electronic sys-
tems. We therefore recommend having the
connector plug wired at a qualified specialist
workshop.
!You can connect accessories with a maxi-
mum 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 elec-
trical installations for trailer towing. Depending
on your trailer, you may need an adapter to con-
nect 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.
Further information on the electrical equipment
currently installed on your vehicle and on instal-
ling trailer electrics can be obtained at any quali-
fied specialist workshop.
Towing a trailer157
Driving and parking
Z

Before connecting the jumper cables
On vehicles with a battery main switch, check
whether the battery main switch is switched on
(
Ypage 116).
XApply the parking brake.
XMove the selector lever of the automatic
transmission to positionP.
XSwitch off all electrical consumers, e.g. audio
equipment, blower.
XTurn the key to position0in the ignition lock
and remove it (Ypage 117).
XOpen the hood (Ypage 214).
Tow-starting and towing away
Important safety notes
GWARNING
Functions relevant to safety are restricted or
no longer available if:
Rthe engine is not running.
Rthe brake system or the power steering is
malfunctioning.
Rthere 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.
GWARNING
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.
GWARNING
When towing or tow-starting another vehicle
and its weight is greater than the permissible
gross weight of your vehicle, the:
Rthe towing eye could detach itself
Rthe 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 the gross vehicle weight can be
found on the vehicle identification plate
(
Ypage 272).
!Only secure the tow rope or tow bar at the
towing eyes. Otherwise, the vehicle could be
damaged.
!Observe the following points when towing
with a tow rope:
RSecure the tow rope on the same side on
both vehicles.
REnsure 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.
ROnly secure the tow cable to the towing
eye.
RObserve the brake lamps of the towing
vehicle while driving. Always maintain a dis-
tance so that the tow rope does not sag.
RDo not use steel cables or chains to tow
your vehicle. You could otherwise damage
the vehicle.
!Do not use the towing eye for recovery, this
could damage the vehicle. If in doubt, recover
the vehicl
e with a crane.
!When towing, pull away slowly and
smoothly. If the tractive power is too high, the
vehicles could be damaged.
When towing away, you must observe the legal
requirements for the country in which you are
currently driving.
It is preferable to have the vehicle transported
on a transporter or trailer instead of towing it.
Tow-starting and towing away239
Breakdown assistance
Z

Towing with the front or rear axle
raised
General notes
!The ignition must be switched off if the vehi-
cle is being towed with the front or rear axle
raised. Otherwise, ESP
®may intervene and
damage the brake system.
!Always use new bolts when installing the
propeller shafts.
iOnly have the propeller shafts installed and
removed by qualified, skilled personnel.
Observe the following before towing a vehicle
with a raised front or rear axle:
Rthe information on towing in the event of mal-
functions (Ypage 240) and
Rthe important safety notes (Ypage 239).
If the front axle is damaged, raise the vehicle at
the front axle and if the rear axle is damaged,
raise the vehicle at the rear axle.
Towing
If the front axle is raised, the vehicle may be
towed a maximum of 30 miles (50 km). For a
towing distance of over 30 miles (50 km), the
propeller shafts to the driven axles must be
removed.
XTurn the key to position 2in the ignition lock.
XDepress the brake pedal and keep it
depressed.
XShift the automatic transmission to position
N.
XTurn the key to position 1in the ignition lock
and leave it in this position.
XSwitch on the hazard warning lamps
(Ypage 83).
XRelease the brake pedal.
XRelease the parking brake.
XIf the front axle is raised, do not exceed the
towing speed of 30 mph (50 km/h) and the
towing distance of 30 miles (50 km).
Towing the vehicle with both axles on
the ground
Important safety notes
GWARNING
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.
!Do not exceed a towing speed of 31 mph
(50 km/h). You could otherwise damage the
transmission.
iOnly have the propeller shafts fitted and
removed by qualified, skilled personnel.
Before towing the vehicle, observe the follow-
ing:
Rthe information on towing in the event of mal-
functions (Ypage 240) and
Rthe important safety notes (Ypage 239).
Towing
You may only tow the vehicle a maximum dis-
tance of 30 miles (50 km). For a towing distance
of over 30 miles (50 km), the propeller shafts to the driven axles must be removed.
XTurn the key to position 2in the ignition lock.
XDepress the brake pedal and keep it
depressed.
XShift the automatic transmission to position
N.
XRelease the brake pedal.
XRelease the parking brake.
XLeave the key in position 2in the ignition lock.
XSwitch on the hazard warning lamps
(Ypage 83).
XDo not exceed the towing speed of 30 mph
(50 km/h) and the towing distance of
30 miles (50 km).
Recovering a vehicle that is stuck
!
When recovering a vehicle that has become
stuck, pull it as smoothly and evenly as pos-
sible. Excessive tractive power could damage
the vehicles.
Tow-starting and towing away241
Breakdown assistance
Z

Curb weight
The weight of a vehicle with standard equipment
including the maximum filling capacity of fuel,
oil, and coolant. It also includes the air-condi-
tioning system and optional equipment if these
are installed on the vehicle, but does not include
passengers or luggage.
Maximum tire load
The maximum tire load in kilograms or pounds is
the maximum weight for which a tire is
approved.
Maximum permissible tire pressure
Maximum permissible tire pressure for one tire.
Maximum load on one tire
Maximum load on one tire. This is calculated by
dividing the maximum axle load of one axle by
two.
PSI (Pounds per square inch)
Standard unit of measurement for tire pressure.
Aspect ratio
Relationship between tire height and width in
percent.
tire pressure
Pressure inside the tire applying an outward
force to every square inch of the tire's surface.
Tire pressure is specified in pounds per square
inch (psi), in kilopascal (kPa) or in bar. Tire pres-
sure should only be corrected when the tires are
cold.
Cold tire pressure
The tires are cold:
Rif the vehicle has been parked for at least
three hours without direct sunlight on the
tires, and
Rif the vehicle has not been driven further than
1 mile (1.6 km)
Tire tread
The part of the tire that comes into contact with the road.
Tire bead
The tire bead ensures that the tire sits securely
on t
he wheel. There are several steel wires in the
bead to prevent the tire from coming loose from
the wheel rim.
Sidewall
The part of the tire between the tread and the
tire bead.
Weight of optional extras
The combined weight of those optional extras
that weigh more than the replaced standard
parts and more than 2.3 kg (5 lbs). These
optional extras, such as high-performance
brakes, a roof rack or a high-performance bat-
tery, are not included in the curb weight and the
weight of the accessories.
TIN (Tire Identification Number)
A unique identification number which can be
used by a tire manufacturer to identify tires, for
example for a product recall, and thus identify
the purchasers. The TIN is composed of the
manufacturer identification code, tire size, tire
model code and manufacturing date.
Load bearing index
The load bearing index (also load index) is a code
that contains the maximum load bearing capa-
city of a tire.
Traction
Traction is the result of friction between the tires
and the road surface.
TWR (permissible trailer drawbar load)
The TWR is the maximum permissible weight
that may act on the ball coupling of the trailer
tow hitch.
Wear indicator
Narrow bars (tread wear bars) that are distrib-
uted over the tire tread. If the tir e tread is level
with the bars, the wear limit of áin (1.6 mm)
has been reached.
Distribution of the vehicle occupants
The distribution of vehicle occupants over des-
ignated seat positions in a vehicle.
Maximum permissible payload weight
Nominal load and goods/luggage load plus
68 kg (150lbs) multiplied by the number of
seats in the vehicle.
What you should know about wheels and tires261
Wheels and tires
Z