Weight information can be found in the “Per-
missible trailer and drawbar noseweights” sec-
tion (
Ypage 159).
iThe height of the ball neck changes accord-
ing to the load on the vehicle. If this is case,
use a trailer with a height-adjustable trailer
drawbar.
Driving tips
The maximum permissible speed for vehicle/
trailer combination depends on the type of
trailer. Before setting off, check the vehicle
documents of the your trailer to find out the
permissible maximum speed. Observe the
legally prescribed maximum speed for vehicle/
trailer combinations in the relevant country,
state or Canadian province.
When towing a trailer, your vehicle's handling
characteristics will be different in comparison to when driving without a trailer and it will con-
sume more fuel.
On long, steep downhill slopes you must select
shift range 3,2or 1in good time.
iThis also applies if cruise control is activa-
ted.
This enables you to utilize the engine's braking
effect and you do not need to brake so heavily to
keep the correct speed. which protects the
brake system and prevents the brakes from
overheating and wearing too quickly. If you need to brake additionally, to not depress the brake
pedal constantly, but periodically.
Driving tips
If the trailer begins to swing from side to side:
XDo not accelerate.
XDo not counter-steer.
XBrake if necessary.
iYou can reduce the risk of the trailer swing-
ing and rocking by retrofitting anti-roll bars or trailer stability programs. More information is
available from your authorized Sprinter
Dealer.
RMaintain a greater distance than you would
when driving without towing a trailer.
RAvoid sudden braking. Apply the brakes gen-
tly at first to allow the trailer brake to overrun.
Then, increase the brake force quickly.
RThe figures for the gradient climbing capabil-
ities from a standstill refer to sea level. When
driving in mountainous areas, note that the
power output of the engine, and with it its
gradient climbing capability, decrease with
increasing altitude.
Coupling up a trailer
Trailer coupled ready for use
XMake sure the selector lever of the automatic
transmission is in position P.
XApply the vehicle's parking brake.
XClose all doors.
XPosition the trailer horizontally behind your
vehicle.
iThe height of the ball neck changes accord-
ing to the load on the vehicle. In this case, use
a trailer with a height-adjustable trailer draw-
bar.
XCouple the trailer.
XEstablish all electrical and other connections to the trailer. When doing so, hook the break-
away cable of the trailer into eyelet :on the
ball coupling.
XRemove the objects that are preventing the
trailer from rolling, e.g. wheel chocks.
XRelease the trailer parking brake.
iThe subharness of the vehicle has a cable
connection to the brake lamp indicator lamp.
Observe the maximum permissible trailer
dimensions (width and length).
Towing a trailer157
Driving and parking
Z
Regular wheel and tire checks
GWARNING
Damaged tires can cause tire inflation pres-
sure loss. As a result, you could lose control of
your vehicle. There is a risk of accident.
Check the tires regularly for signs of damage
and replace any damaged tires immediately.
Check the wheels and tires of your vehicle for
damage regularly, i.e. at least every two weeks,
as well as after driving off-road or on rough
roads. Damaged wheels can cause a loss of tire
pressure. Pay particular attention to damage
such as:
Rcuts in the tires
Rpunctures
Rtears in the tires
Rbulges on tires
Rdeformation or severe corrosion on wheels
Regularly check the tire tread depth and the
condition of the tread across the whole width of
the tire (
Ypage 248). If necessary, turn the
front wheels to full lock in order to inspect the
inner side of the tire surface.
All wheels must have a valve cap to protect the valve against dirt and moisture. Do not install
anything onto the valve other than the standard
valve cap or other valve caps approved for your vehicle by dealers listed on the inside of the
front cover. Do not install any other valve caps
or systems, e.g. tire pressure monitor systems.
Regularly check the pressure of all the tires,
particularly prior to long trips. Adjust the tire
pressure if ne
cessary (Ypage 250).
The service life of tires depends on various fac-
tors, including the following:
Rdriving style
Rtire pressure
Rmileage
Tire tread
GWARNING
Insufficient tire tread will reduce tire traction.
The tire is no longer able to dissipate water.
This means that on wet road surfaces, the risk
of hydroplaning increases, in particular where
speed is not adapted to suit the driving con-
ditions. There is a risk of accident.
If the tire pressure is too high or too low, tires may exhibit different levels of wear at differ-
ent locations on the tire tread. Thus, you
should regularly check the tread depth and
the condition of the tread across the entire
width of all tires.
Minimum tire tread depth for:
RSummer tires: âin (3 mm)
RM+S tires: ãin (4 mm)
For safety reasons, replace the tires before
the legally prescribed limit for the minimum
tire tread depth is reached.
Bar marking :for tread wear is integrated into
the tire tread.
Tread wear indicators (TWIs) are required by
law. Six indicators are positioned over the tire
tread. They are visible once the tread depth is
approximately áin (1.6 mm). If this is the case,
the tire is so worn that it must be replaced.
Selecting, mounting and renewing
tires
ROnly mount tires and wheels of the same type
and make.
ROnly mount tires of the correct size onto the
wheels.
RBreak in new tires at moderate speeds for the first 65 miles (100 km).
248Operation
Wheels and tires
tire load rating and speed rating required for
your vehicle.
:Design standard
;Tire width
=Nominal aspect ratio in %
?Tire code
ARim diameter
BLoad bearing index
CSpeed index
General: depending on the manufacturer's
standards, the size imprinted in the tire wall may
not contain any letters or may contain one let-
ter :that precedes the size description
If "LT" precedes the size description (as shown
above): these are light truck tires according to
U.S. manufacturing standards.
If "C" precedes the size description: these are
commercial motor vehicle tires according to
European manufacturing standards.
Tire width: tire width;shows the nominal tire
width in millimeters.
Aspect ratio: aspect ratio=is the size ratio
between the tire height and tire width and is
shown in percent. The aspect ratio is calculated
by dividing the tire width by the tire height.
Tire code: tire code?specifies the tire type.
"R" represents radial tires. "D" represents diag-
onal tires, "B" represents diagonal radial tires.
Rim diameter: rim diameterAis the diameter
of the bead seat, not the diameter of the rim
flange. The rim diameter is specified in
inches (in).
Load-bearing index: load-bearing indexBis a
numerical code tha t s
pecifies the maximum
load-bearing capacity of a tire.
Do not overload the tires by exceeding the
specified load limit. The maximum permissible
load can be found on the vehicle's Tire and Loading Information placard on the B-pillar on
the driver's side (
Ypage 258).
Example:
The load-bearing index 120 indicates a maxi-
mum load of 3,042 lb (1,380 kg) for the tire. If
two load-bearing capacity indices are specified
(as shown above), the first number states the
load-bearing capacity for single tires, the sec-
ond number the load-bearing capacity for twin
tires. For further information on the maximum
tire load in kilograms and pounds, see
(
Ypage 263).
For further information on the load-bearing
index, see "Load index" (
Ypage 263).
Speed rating: speed ratingCspecifies the
approved maximum speed of the tire.
Regardless of the speed index always observe
the speed limits. Drive carefully and adapt your
driving style to the traffic conditions.
iTire data is vehicle-specific and may deviate
from the data in the example.
IndexSpeed rating
Fup to 50 mph (80 km/h)
Gup to 56 mph (90 km/h)
Jup to 62 mph (100 km/h)
Kup to 68 mph (110 km/h)
Lup to 74 mph (120 km/h)
Mup to 80 mph (130 km/h)
Nup to 87 mph (140 km/h)
Pup to 93 mph (150 km/h)
Qup to 100 mph (160 km/h)
Rover 106 mph (170 km/h)
iNot all tires that have the M+S identification
offer the driving characteristics of winter
tires. In addition to the M+S marking, winter
tires also have the isnowflake symbol on
the tire wall. Tires with this marking fulfill the
requirements of the Rubber Manufacturers
Association (RMA) and the Rubber Associa-
tion of Canada (RAC) regarding the tire trac-
tion on snow. They have been especially
developed for driving on snow.
262What you should know about wheels and tires
Wheels and tires
cle weight rating (GVWR) specified on the vehi-
cle identification plate at the base of the driver's
seat (
Ypage 276).
GVWR (Gross Vehicle Weight Rating)
The GVWR is the maximum permitted gross
weight of the fully laden vehicle (weight of the
vehicle including all accessories, occupants,
fuel, luggage and the drawbar noseweight if
applicable). The Gross Vehicle Weight Rating is
specified on the vehicle identification plate on
the driver seat frame (
Ypage 276).
Maximum weight of the laden vehicle
The maximum weight is the sum of:
Rthe curb weight of the vehicle
Rthe weight of the accessories
Rthe load limit
Rthe weight of the factory installed optional
equipment
Kilopascal (kPa)
Metric unit for tire pressure. 6.9 kPa are the
equivalent of 1 psi. Another tire pressure unit is
bar. 100 kilopascals(kPa) are the equivalent of
1 bar.
Load index
In addition to the load bearing index, a load
index can be stamped onto the sidewall of the
tire. It specifies the load-bearing capacity of the
tire more precisely.
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 equipme nt i
f 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 the wheel. There are several stee l 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.
What you should know about wheels and tires265
Wheels and tires
Z