RDo not drive with tires which have too little
tread depth, as this significantly reduces the
traction on wet roads (hydroplaning).
RReplace the tires after 6 years at the latest,
regardless of wear. This also applies to the
spare wheel.
Operation in winter
General notes
Have your vehicle winterproofed at a qualified
specialist workshop at the onset of winter.
Prior to the onset of winter, ensure that snow
chains are stowed in the vehicle (
Ypage 246).
Also observe the notes in the "Changing a
wheel" section (
Ypage 262).
Regularly check the vehicle and remove snow or ice when traveling in wintry conditions.
An accumulation of snow and ice, particularly
when frozen, caught in the area around the air
intake slots, moving parts, the axles and the
wheel arches may:
Rrestrict air intake
Rdamage vehicle parts
Rcause malfunctions by restricting the mobility
intended by the design (e.g. reduced possible
steering input).
If there is any damage, inform a qualified spe-
cialist workshop.
Driving with summer tires
At temperatures below 45 ‡ (+7 †), summer
tires lose elasticity and therefore traction and
braking power. Change the tires on your vehicle
to M+S tire. Using summer tires at very cold
temperatures could cause tears to form,
thereby damaging the tires permanently. We
cannot accept responsibility for this type of
damage.
M+S tires
GWARNING
Wheel and tire dimensions as well as the type of tire can vary between the spare wheel and
the wheel to be replaced. When the spare
wheel is mounted, driving characteristics may
be severely affected. There is a risk of an acci- dent.
In order to reduce risks:
Ryou should therefore adapt your driving
style and drive carefully.
Rnever mount more than one spare wheel
that differs from the wheel to be replaced.
Ronly use a spare wheel that differs from the
wheel to be replaced for a short time.
Rdo not deactivate ESP®.
Rhave a spare wheel that differs from the
wheel that has been changed replaced at
the nearest qualified specialist workshop.
You must observe the correct wheel and
tire dimensions as well as the wheel type.
GWARNING
M+S tires with a tire tread depth of less than
ã in (4 mm) are not suitable for use in winter
and do not provide sufficient traction. There is
a risk of an accident.
M+S tires with a tread depth of less than ãin
(4 mm) must be replaced immediately.
Use winter tires or all-season tires at tempera-
tures below 45 ‡ (+7 †). Both types of tire are
identified by the M+S marking.
Only winter tires bearing the isnowflake
symbol in addition to the M+S marking provide
the best possible grip in wintry road conditions.
Only these tires will allow driving safety systems
such as ABS and ESP
®to function optimally in
winter. These tires have been developed specif-
ically for driving in snow.
For safe driving, use M+S tire sof the same make
and tread pattern on all wheels.
Always observe the maximum permissible
speed specified for the M+S tires you have
mounted.
If you install M+S tires that have a lower maxi-
mum permissible speed than the maximum per-
missible speed of the vehicle, affix an appropri-
ate warning sign in the driver's field of vision.
You can obtain this at a qualified specialist work-
shop.
Operation in winter245
Wheels and tires
Z
There is a risk of an accident.
Follow recommended tire inflation pressures
and check the pressure of all the tires includ-
ing the spare wheel:
Rmonthly, at least
Rif the load changes
Rbefore beginning a long journey
Runder different operating conditions, e.g.
off-road driving
If necessary, correct the tire pressure.
iThe specifications shown on the sample Tire
and Loading Information placard and tire
pressure plate are examples. Tire pressure
data are vehicle-specific and may deviate
from the data illustrated here. The tire pres-
sure data applicable to your vehicle can be
found on the Tire and Loading Information
placard or tire pressure plate of your vehicle.
HEnvironmental note
Check the tire pressure regularly, at least
every 14 days.
General notes
You will find information on tire pressure for the
vehicle's factory-mounted tires on the plates
described here.
The recommended tire pressure can be found
on the Tire and Loading Information placard
4or
the tire pressure table on the B-pillar on the
driver's side of your vehicle.
Further information on tire pressure can be
obtained at a qualified specialist workshop.
Tire and Loading Information placard
Example: Tire and Loading Information placard4
The Tire and Loading Information placard is on
the B-pillar on the driver's side of the vehicle
(
Ypage 254).
The Tire and Loading Information placard con-
tains recommended tire pressures :for cold
tires. Recommended tire pressures :are valid
for the maximum permissible load and up to the
maximum permissible speed of the vehicle.
Tire pressure plate
Example: tire pressure table
The tire pressure plate is located on the B-pillar
on the driver's side of the vehicle (Ypage 254).
The tire pressure table contains recommended
tire pressures for cold tires. Recommended tire pressures are valid for the maximum permissi-
ble load and up to the maximum permissible
speed of the vehicle.
4Only for vehicles with a gross vehicle weight of less than 10,000 lbs (4,536 kg)
Tire pressure247
Wheels and tires
Z
Important notes on tire pressure
GWARNING
If th etire pressur edrops repeatedly, th e
wheel, valv eor tire may be damaged. Tir e
pressur ethat is to olow may result in atire
blow-out .Ther eis aris kof an accident.
RChec kth etire for foreign objects .
RCheckwhether th ewhee lis losing air or th e
valv eis leaking .
If you are unable to rectify th edamage, con-
tac t a qualified specialist workshop.
Use asuitable pressur egage to chec kth etire
pressure. The outer appearanc eof atire does
no tpermit any reliable conclusio nabout th etire
pressure. On vehicles equipped wit hth eelec -
tronic tire pressur emonitor, th etire pressur e
can be checke dusin gth eon-board computer.
The tire temperature and pressur eincreas e
when th evehicl eis in motion .This is dependen t
on th edriving spee dand th eload.
Therefore, you should only correc ttire pressur e
when th etires are cold.
The tires are cold:
Rif th evehicl ehas been parked for at least
three hour swithout direct sunligh ton th e
tires ,and
Rif th evehicl ehas no tbeen driven further than
1 mile (1.6 km )
Tire temper ature changes depending on the
ambient temperature, driving speed and tire
load. If the tire temperature changes by 18 ‡
(10 †), the tire pressure ch anges by approx
-
imately 10 kPa (0.1 bar/1.5 psi). Take this into
account when checking the pressure of warm
tires. Only correct the tire pressure if it is too low
for the current operating conditions. If you
check the tire pressure when the tires are warm,
it results in a higher value than when the tires
are cold. This is normal. Do not under any cir-
cumstances release the air in order to adjust the
pressure to the prescribed value for cold tires.
The tire pressure would otherwise be too low. Observe the recommended tire pressures for
cold tires:
Ron the Tire and Loading Information placard5
on the B-pillar on the driver's side, or
Ron the tire pressure plate on the B-pillar on the
driver's side of the vehicle
Underinflated or overinflated tires
Underinflated tires:
GWARNING
Tires with pressure that is too low can over-
heat and burst as a consequence. In addition, they also suffer from excessive and/or irreg-
ular wear, which can severely impair the brak-
ing properties and the driving characteristics.
There is a risk of an accident.
Avoid tire pressures that are too low in all the
tires, including the spare wheel.
Underinflated tires can:
Rfail from being overheated
Radversely affect handling
Rwear excessively and/or unevenly
Rhave an adverse effect on fuel consumption
Overinflated tires
GWARNING
Tires with excessively high pressure can burst
because they are damaged more easily by
road debris, potholes etc. In addition, they
also suffer from irregular wear, which can
severely impair the braking properties and the driving characteristics. There is a risk of an
accident.
Avoid tire pressures that are too high in all the
tires, including the spare wheel.
Overinflated tires can:
Rincrease the braking distance
Radversely affect handling
Rwear excessively and/or unevenly
5Only for vehicle swith agross weigh tof less than 10,00 0lbs (4,536 kg).
248Tire pressure
Wheels and tires
Radversely affect ride comfort
Rbe more susceptible to damage
Maximum tire pressures
:Maximum permitted tire pressure (example)
Never exceed the maximum permissible tire
inflation pressure. When adjusting the tire pres-
sures always observe the recommended tire
pressure for your vehicle (
Ypage 246).
iThe actual values for tires are specific to
each vehicle and may deviate from the values in the illustration.
Tire valve
GWARNING
Tire valve that are not approved for your vehi-
cle by the distributor named on the inside
cover page may result in a loss of tire pres-
sure. This may affect road safety. There is a
risk of an accident.
Only use tire valve that are approved for your
vehicle by the distributor named on the inside
cover page. Always make sure you have the
correct tire valve type for the tires on your
vehicle.
!Do not screw additional weights (check
valves, etc.) onto the tire valves. The elec-
tronic components could thus be damaged.
Only for vehicles without a tire pressure moni-
tor:
For safety reasons, Mercedes-Benz recom-
mends that you only use tire valves that have
been tested for use on your vehicle.
Checking the tire pressure manually
In order to determine and adjust the tire pres-
sures, proceed as follows:
XRemove the valve cap of the tire you wish to
check.
XPress the tire pressure gauge securely onto
the valve.
XRead the tire pressure and compare it with the
recommended value on the loading informa-
tion table or the tire pressure table
(
Ypage 246).
XIf the tire pressure is too low, increase it to the
recommended value.
XIf the tire pressure is too high, release air by
pressing down the metal pin in the valve. Use
the tip of a pen, for example. Then, check the
tire pressure again using the tire pressure
gauge.
XScrew the valve cap onto the valve.
XRepeat the steps for the other tires.
Tire pressure monitor
Important safety notes
GWARNING
Each tire, including the spare (if provided),
should be checked at least once a month
when cold and inflated to the pressure rec-
ommended by the vehicle manufacturer on
the Tire and Loading Information placard on
the driver's door B-pillar or the tire pressure
label on the inside of the fuel filler flap. If your
vehicle has tires of a different size than the
size indicated on the Tire and Loading Infor-
mation placard or the tire pressure label, you
should determine the proper tire pressure for
those tires.
As an added safety feature, your vehicle has
been equipped with a tire pressure monitoring
system (TPMS) that illuminates a low tire pres-
sure telltale when one or more of your tires
are significantly underinflated. Accordingly,
when the low tire pressure telltale illuminates,
you should stop and check your tires as soon
as possible, and inflate them to the proper
pressure. Driving on a significantly underin-
Tire pressure249
Wheels and tires
Z
Tires/disc wheelFront axle load
3970 lbs
(1801 kg) 4100 lbs
(1860 kg)4080 lbs
(1851 kg)4410 lbs
(2000 kg)
LT 245/75 R 16 120/116Q
6.5J x 16
Wheel offset: 2.13 in (54 mm)340 kPa
(3.4 bar/49 psi)——
235/65 R 16 C 121N (118R)
6.5J x 16
Spare wheel for vehicles with
Super Single tires—380 kPa
(3.8 bar/55 psi)420 kPa
(4.2 bar/61 psi)
Rear axle tire pressure values: the following tire pressure values only apply to vehicles with a
permissible rear axle load of 5360 lbs (2431 kg), 7060 lbs (3202 kg) or 7720 lbs (3502 kg).
Tires/disc wheelRear axle load
5360 lbs
(2431 kg)7060 lbs
(3202 kg)7720 lbs
(3502 kg)
LT 215/85 R 16 115/112N
5.5Jx16
Half distance between centers: 4.94 in
(125.5 mm)—380 kPa
(3.8 bar/55 psi)420 kPa
(4.2 bar/61 psi)
LT 215/85 R 16 115/112Q
5.5Jx16
Half distance between centers: 4.94 in
(125.5 mm)—380 kPa
(3.8 bar/55 psi)420 kPa
(4.2 bar/61 psi)
LT 245/75 R 16 120/116N
6.5J x 16
Wheel offset: 2.13 in (54 mm)480 kPa
(4.8 ba r/70 psi)——
285/65 R16 C128/126N (121R)
285/65 R16 C128/12 6 N(123 R)7
8.5J x 16 ET 63
—450 kPa
(4.5 bar/65 psi)—
235/65 R 16 C 121N (118R)
6.5J x 16
Spare wheel for vehicles with
Super Single tires—520 kPa
(5.2 bar/75 psi)—
7Super Single tires
Tire pressure253
Wheels and tires
Z
Bar
Metric unit for tire pressure. 14.5038 pounds
per square inch (psi) and 100 kilopascals (kPa)
are the equivalent of 1 bar.
DOT (Department of Transportation)
DOT marked tires fulfill the requirements of the
United States Department of Transportation.
Average weight of vehicle occupants
The number of occupants for which the vehicle
is designed multiplied by 68 kilograms (150 lbs).
Uniform Tire Quality Grading Standards
A uniform standard to grade the quality of tires
with regard to tread quality, traction and tem-
perature characteristics. The quality grading
assessment is made by the manufacturer fol-
lowing specifications from the U.S government.
The quality grade of a tire is imprinted on the
sidewall of the tire.
Recommended tire pressure
The recommended tire pressures are the pres-
sures specified for the tires mounted on the
vehicle at the factory.
The tire and load information table
8contains the
recommended tire pressures for cold tires, the
maximum permissible load and the maximum
permissible vehicle speed.
The tire pressure table contains the recommen- ded tire pressure for cold tires under various
operating conditions, i.e. loading and/or speed
of the vehicle.
Increased vehicle weight due to optional
equipment
The combined weight of all standard and
optional equipment available for the vehicle,
regardless of whether it is actually installed on
the vehicle or not.
Wheel rim
The part of the wheel on which the tire is moun-
ted.
GAWR (Gross Axle Weight Rating)
GAWR is the maximum gross axle weight rating.
The actual load on an axle must never exceed
the gross axle weight rating. The Gross Axle
Weight Rating can be found on the vehicle iden- tification plate on the driver seat frame
(
Ypage 272).
Speed index
The speed index is part of the tire identification.
It specifies the speed range for which the tire is
approved.
GTW (Gross Trailer Weight)
GTW is the total of weight of a trailer and the
weight of the load, accessories etc. on the
trailer.
GVW (Gross Vehicle Weight)
The gross vehicle weight includes the weight of
the vehicle including fuel, tools, spare wheel,
accessories installed, occupants, luggage and
the drawbar noseweight if applicable. The gross
vehicle weight may never exceed the gross vehi-
cle weight rating (GVWR) specified on the vehi-
cle i
dentification plate at the base of the driver's
seat (Ypage 272).
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 272).
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 ps i.Another tire pressure unit is
bar. 100 kilopascal s(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.
8Only for vehicles with a gross weight of less than 10,000 lbs (4536 kg).
260What you should know about wheels and tires
Wheels and tires
Mounting a wheel
Vehicle preparation
XStop the vehicle as far away as possible from
traffic and on a level, firm and non-slip sur-
face.
XIf your vehicle poses a risk to approaching
traffic, switch on the hazard warning lamps.
XApply the parking brake.
XTurn the front wheels to the straight-ahead
position.
XMove the selector lever of the automatic
transmission to position P.
XSwitch off the engine.
XPassengers should leave the vehicle. Make
sure that the passengers are not endangered
as they do so.
XMake sure that no one is near the danger area
while the wheel is being changed. Anyone
who is not directly assisting in the wheel
change should, for example, stand behind the
barrier.
XPlace the warning triangle or warning lamp at
a suitable distance.
Observe legal requirements.
XSecure the vehicle to prevent it from rolling
away.
iObserve the safety notes on parking in the
section on "Driving and parking"
(
Ypage 127).
XOn level terrain: place chocks or other suit-
able objects under the front and rear of the
wheel that is diagonally opposite the wheel to
be changed.
XOn slight inclines: place chocks or other
suitable objects under the wheels on the front and rear axles opposite the wheel to be
changed.
XTake the vehicle tool kit and the jack from the
footwell on the front-passenger side
(
Ypage 236).
XRemove the spare wheel from the spare wheel
bracket (Ypage 269). Observe the safety
notes in the "Spare wheel" section
(
Ypage 268).
XOn wheels with wheel bolts, remove the hub
caps.
XAssemble the lug wrench extension using the
middle rod and the rod with the largest diam-
eter from the three-piece jack pump lever.
XStarting with the middle rod, slide the lug
wrench extension as far as it will go onto the
lug wrench.
XUsing lug wrench :, loosen the wheel bolts/
wheel nuts on the wheel to be changed by
about one full turn. Do not unscrew the wheel bolts/nuts completely.
Raising the vehicle
GWARNING
If you do not position the jack correctly at the
appropriate jacking point of the vehicle, the
jack could tip over with the vehicle raised.
There is a risk of injury.
Only position the jack at the appropriate jack-
ing point of the vehicle. The base of the jack
must be positioned vertically, directly under
the jacking point of the vehicle.
GWARNING
On uphill and downhill slopes, the jack could
tip over with the vehicle raised. There is a risk
of injury.
Do not change wheels on uphill or downhill
gradients. Notify a qualified specialist work-
shop.
!Only position the jack on the jacking points
intended for this purpose. You could other-
wise damage the vehicle.
Changing wheels263
Wheels and tires
Z
Jacking point, rear axle (example: vehicle type
2500)
Jacking point, rear axle (example: vehicle type
3500)
XPlace the jack under the jacking point in front
of the rear axle.
Jacking point, rear axle (example: Cab Chassis)Jacking point at the rear axle on chassis ver-
sions
XPlace the jack next to the front leaf spring
support beneath the jacking point.
Removing a wheel
!Do not place the wheel bolts or the wheel
nuts in sand or dirt. The threads of the wheel
bolts and wheel nuts could otherwise be dam-
aged when being tightened.
XUnscrew the wheel bolts or nuts.
XOn front wheels with wheel nuts, remove the
wheel nut cover.
XRemove the wheel.
Installing the adapter
GWARNING
If you tighten the adapter bolts when the vehi-
cle is raised, the jack could tip over. There is a risk of injury.
Make sure that the vehicle is properly pre-
pared for a wheel change. Tighten the adapter
bolts with particular care and attention.
Always observe the instructions and safety
notes on "Changing a wheel" (
Ypage 262).
GWARNING
If you do not tighten the bolts of the adapter to
the specified tightening torque, the adapter
may come loose with the spare wheel. There
is a risk of an accident.
Tighten the bolts of the adapter to the speci-
fied tightening torque. Have the spare wheel
replaced with a complete wheel and an extra- wide tire at a qualified specialist workshop
immediately.
!Vehicles with Super Single tires: if you
install the spare wheel, do not exceed the
maximum speed of 40 mph (60 km/h)and do
not drive further than 65 miles(100 km).
The transmission could otherwise be dam-
aged by the difference in wheel rotation
speeds.
On vehicles with Super Single tires, you must
attach the narrow spare wheel to the rear axle by means of an adapter. The adapter is bolted to
the spare wheel using the adapter bolts for
transportation.
The handling characteristics of your vehicle are
affected when driving with a spare wheel instal-
led. After changing a wheel, drive to the nearest
Changing wheels265
Wheels and tires
Z