2016 MERCEDES-BENZ GL-Class fuel pressure

too low and must be corrected at the next
opportunity.
RIf theCheckTiresmessage appears in the
multifunction display, the tire pressure in
one or more tires has dropped significantly
and the tires must be checked.
RIf the Warning Tire Malfunctionmes-
sage appears in the multifunction display,
the tire pressure in one or more tires has
dropped suddenly and the tires must be
checked.
iIf the wheel positions on the vehicle are
rotated, the tire pressures may be dis-
played for the wrong positions for a short
time. This is rectified after a few minutes of
driving, and the tire pressures are displayed
for the correct positions.
Restarting the tire pressure monitor
When you restart the tire pressure monitor, all
existing warning messages are deleted and
the warning lamps go out. The monitor uses
the currently set tire pressures as the refer-
ence values for monitoring. In most cases, the tire pressure monitor will automatically
detect the new reference values after you
have changed the tire pressure. However, you
can also define reference values manually as
described here. The tire pressure monitor
then monitors the new tire pressure values.
XSet the tire pressure to the value recom-
mended for the corresponding driving sit-
uation on the Tire and Loading Information
placard on the driver's side
B-pillar (
Ypage 408).
Additional tire pressure values for different
loads can also be found on the tire pressure table on the inside of the fuel filler flap
(
Ypage 408).
XMake sure that the tire pressure is correct
on all four wheels.
XMake sure that the SmartKey is in position2 in the ignition lock.
XPress the =or; button on the steer-
ing wheel to select the Service
menu.
XPress the9or: button to select
Tire Pressure
.
XPress the abutton.
The multifunction display shows the cur-
rent tire pressure for the individual tires or
the Tire
pressurewillbedisplayed
after driving a few minutesmes-
sage.
XPress the :button.
The Use Current Pressures as New
Reference Valuesmessage appears in
the multifunction display.
If you wish to confirm the restart:
XPress the abutton.
The Tire
PressureMonitorRestarted
message appears in the multifunction dis-
play.
After driving for a few minutes, the system
checks whether the current tire pressures
are within the specified range. The new tire
pressures are then accepted as reference
values and monitored.
If you wish to cancel the restart:
XPress the %button.
The tire pressure values stored at the last
restart will continue to be monitored.
Radio type approval for the tire pres-
sure monitor
CountryRadio type approval number
USAFCC ID: MRXMW2433A
FCC ID: MRXGG4
FCC ID: MRXMC34MA4
CanadaIC: 2546A-MW2433A
IC: 2546A-GG4
IC: 2546A-MC34MA4
Tire pressure415
Wheels and tires
Z

DOT (Department of Transportation)
DOT-markedtires fulfill th erequirements of
th e U S Departmen tof Transportation .
Normal occupant weigh t
The number of occupant sfo rwhic hth evehi-
cle is designed multiplie dby 68 kilograms
(15 0lbs) .
Unifor mTire Qualit yGrading Standards
A uniform standard to grade th equalit yof
tires wit hregards to tread quality, tire traction
and temperature characteristics .The qualit y
gradin gassessmen tis made by th emanufac -
turer following specification sfrom th eU.S.
government. The ratings are molded into th e
sidewall of th etire.
Recommended tire pressure s
The recommended tire pressur eapplies to
th etires mounted at th efactory.
The Tir eand Loadin gInformation placard con-
tains th erecommended tire pressures fo r
cold tires on afull yloade dvehicl eand fo rth e
maximum permissibl evehicl espeed.
The tire pressur etable contain sth erecom-
mended pressures fo rcold tires fo rvarious
operating conditions, i.e. differin gload and
speed conditions.
Increased vehicle weigh tdu eto optiona l
equipment
The combine dweight of all standard and
optional equipmen tavailable fo rth evehicle,
regardless of whether it is a
ctually installed
on th evehicl eor not.
Ri m
This is th epart of th ewhee lon whic hth etire
is mounted.
GAW R(Gross Axle Weight Rating)
The GAW Ris th emaximum gross axl eweight
rating. The actual load on an axl emus tnever
exceed th egross axl eweight rating. The
gross axl eweight ratin gcan be found on th e
vehicl eidentification plat eon th eB-pillar on
th edriver's side . Speed rating
The speed ratin
gis part of th etire identifica-
tion .It specifies th espeed range fo rwhic hth e
tire is approved.
GT W(Gross Trailer Weight )
The GTW is th eweight of atrailer includin gth e
weight of th eload, luggage, accessories etc.
on th etrailer .
GV W(Gross Vehicle Weight )
The gross vehicl eweight includes th eweight
of th evehicl eincludin gfuel ,tools ,th espar e
wheel, accessories installed ,occupants, lug-
gage and th edrawbar noseweight ,if applica-
ble. The gross vehicl eweight mus tno texceed
th egross vehicl eweight ratin gGVWR as
specified on th evehicl eidentification plat eon
th eB-pillar on th edriver's side .
GVWR (Gross Vehicle Weight Rating)
The GVWR is th emaximum permissibl egross
weight of afull yloade dvehicl e(the weight of
th evehicl eincl
udin
gall accessories, occu-
pants ,fuel, luggage and th edrawbar nose-
weight ,if applicable). The gross vehicl e
weight ratin gis specified on th evehicl eiden -
tification plat eon th eB-pillar on th edriver's
side .
Maximum loaded vehicle weigh t
The maximum weight is th esum of :
Rthecur bweight of th evehicl e
Rtheweight of th eaccessories
Rth eload limi t
Rtheweight of th efactory installed optional
equipmen t
Kilopascal (kPa)
Metric uni tfo rtire pressure. 6. 9kP acorre-
spond sto 1psi .Another uni tfo rtire pressur e
is bar. 10 0kilopascal s(kPa) are th eequiva-
len tof 1bar.
Load index
In addition to th eload-bearin gindex ,th eload
index may also be imprinte don th esidewall of
All about wheels and tires42 5
Wheels and tires
Z

the tire. This specifies the load-bearing capa-
city more precisely.
Curb weight
The weight of a vehicle with standard equip-
ment including the maximum capacity of fuel,
oil and coolant. It also includes the air-condi-
tioning system and optional equipment if
these are installed in the vehicle, but does not
include passengers or luggage.
Maximum load rating
The maximum load rating is the maximum
permissible weight in kilograms or lbs 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)
A standard unit of measure for tire pressure.
Aspect ratio
Relationship between tire height and tire
width in percent.
Tire pressure
This is pressure inside the tire applying an
outward force to each square inch of the tire's surface. The tire pressure is specified in
pounds per square inch (psi), in kilopascal
(kPa) or in bar. The tire pressure should only
be corrected when the tires are cold.
Cold tire pressure
The ti
res are cold:
Rif the vehicle has been parked without
direct sunlight on the tires for at least three
hours and
Rif the vehicle has not been driven further
than 1 mile (1.6 km) Tread
The part of the tire that comes into contact
with the road.
Bead
The tire bead ensures that the tire sits
securely on the 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
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, level control, a roof rack or a high-
performance battery, are not included in the
curb weight and the weight of the accesso-
ries.
TIN (Tire Identification Number)
This is a unique identifier 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 made up of the
manufacturer's identity code, tire size, tire
type code and the manufactu ring d
ate.
Load bearing index
The load bearing index (also load index) is a
code that contains the maximum load bearing
capacity of a tire.
Traction
Traction is the result of friction between the
tires and the road surface.
TWR (Tongue Weight Rating)
The TWR specifies the maximum permissible
weight that the ball coupling of the trailer tow hitch can support.
426All about wheels an d tires
Wheels and tires

XPlace the ratchet wrench onto the hexagon
nut of the jack so that the lettersABare
visible.
XTurn the ratchet wrench until the vehicle is
once again standing firmly on the ground.
XPlace the jack to one side.
XTighten the wheel bolts evenly in a cross-
wise pattern in the sequence indicated ( :
to A). The tightening torque must be
110 lb-ft (150 Nm).
XTurn the jack back to its initial position.
XStow the jack and the rest of the tire-
change tool kit in the stowage well under
the cargo compartment floor again.
XCheck the tire pressure of the newly moun-
ted wheel and adjust it if necessary.
Observe the recommended tire pressure
(
Ypage 408).
iVehicles with tire pressure monitor: all
wheels mounted must be equipped with
functioning sensors.
Wheel and tire combinations
General notes
!
For safety reasons, Mercedes-Benz rec-
ommends that you only use tires and
wheels which have been approved by
Mercedes-Benz specifically for your vehi-
cle. These tires have been specially adapted for
use with the control systems, such as ABS
or ESP
®, and are marked as follows:
RMO = Mercedes-Benz Original
RMOE = Mercedes-Benz Original Extended
(tires featuring run-flat characteristics)
RMO1 = Mercedes-Benz Original (only cer-
tain AMG tires)
Mercedes-Benz Original Extended tires
may only be used on wheels that have been
specifically approved by Mercedes-Benz.
Only use tires, wheels or accessories tes-
ted and approved by Mercedes-Benz. Cer-
tain characteristics, e.g. handling, vehicle
noise emissions or fuel consumption, may
otherwise be adversely affected. In addi-
tion, when driving with a load, tire dimen-
sion variations could cause the tires to
come into contact with the bodywork and
axle components. This could result in dam-
age to the tires or the vehicle.
Mercedes-Benz accepts no liability for
damage resulting from the use of tires,
wheels or accessories other than those tes-
ted and approved.
Information on tires, wheels and approved
combinations can be obtained from any
qualified specialist workshop.
!Retreaded tires are neither tested nor rec-
ommended by Mercedes-Benz, since pre-
vious damage cannot always be detected
on retreaded tires. As a result, Mercedes-
Benz cannot guarantee vehicle safety if
retreaded tires are mounted. Do not mount
used tires if you have no information about
their previous usage.
Overview of abbreviations used in the follow-
ing tire tables:
RBA: both axles
RFA: front axle
RRA: rear axle
432Wheel and tire combinations
Wheels and tires

The recommended pressures for various
operating conditions can be found:
Ron the Tire and Loading Information placardwith the recommended tire pressures on
the B-pillar on the driver's side
Rin the tire pressure table on the inside of the
fuel filler flap
Observe the notes on recommended tire
pressures under various operating conditions
(
Ypage 408).
Check tire pressures regularly, and only when
the tires are cold. Comply with the mainte-
nance recommendations of the tire manufac-
turer in the vehicle document wallet.
Notes on the vehicle equipment – always
equip the vehicle with:
Rtires of the same size across an axle (left
and right)
Rthe same type of tires at a given time (sum-
mer tires, winter tires, MOExtended tires)
Vehicles equipped with MOExtended tires are
not equipped with a TIREFIT kit at the factory.
It is therefore recommended that you addi-
tionally equip your vehicle with a TIREFIT kit if you mount tires that do not feature run-flat
properties, e.g. winter tires. A TIREFIT kit may
be obtained from a qualified specialist work-
shop.
iNot all wheel and tire combinations are
available at the factory for all countries.
iThe following pages contain information
on approved wheel rims and tire sizes for
equipping your vehicle with winter tires.
Winter tires are not available at the factory as standard equipment or optional extras.
If you want to equip your vehicle with
approved winter tires, it may be necessary
to obtain wheel rims in the corresponding
size. The size of the approved winter tires
may differ from the standard tires. This is
dependent on the model and the equip-
ment installed at the factory.
The tires and wheel rims, as well as further
information, can be obtained at a qualified
specialist workshop.
Wheel and tire combinations433
Wheels and tires
Z