MERCEDES-BENZ GLK-CLASS SUV 2015 Owners Manual

! Always use wheel bolts ; to mount the
collapsible spare wheel. Using other wheel
bolts to mount the collapsible spare wheel could damage the brake system.
Be sure to use the original-length wheel bolts
when re-mounting the original wheel after it
has been repaired.
! To prevent damage to the paintwork, hold
the wheel securely against the wheel hub
while screwing in the first wheel bolt.
X Clean the wheel and wheel hub contact
surfaces.
X Place the new wheel on the wheel hub and
push it on.
X Tighten the wheel bolts until they are fin-
ger-tight.
X Inflate the collapsible spare wheel
(Y page 367).
Only then lower the vehicle.
Lowering the vehicle
GWARNING
The wheels could work loose if the wheel nuts and bolts are not tightened to the specified
tightening torque. There is a risk of accident.
Have the tightening torque immediately
checked at a qualified specialist workshop
after a wheel is changed.
! Inflate the collapsible spare wheel using
the tire inflation compressor before lower-
ing the vehicle. The wheel rim could other-
wise be damaged.
X Place the ratchet wrench onto the hexagon
nut of the jack so that the letters AB are
visible.
X Turn the ratchet wrench until the vehicle is
once again standing firmly on the ground.
X Place the jack to one side.
X Tighten 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) .
X Turn the jack back to its initial position and
store it together with the rest of the tire-
change tool kit in the cargo compartment.
X Transport the faulty wheel in the cargo
compartment.
X Check the tire pressure of the newly moun-
ted wheel and adjust it if necessary.
Observe the recommended tire pressure
( Y page 336).
For further information on stowing the col-
lapsible spare wheel, see ( Y page 367).
iWhen you are driving with the emergency
spare wheel mounted, the tire pressure
monitor cannot function reliably. Only
restart the tire pressure monitor when the
defective wheel has been replaced with a
new wheel. All wheels mounted must be
equipped with functioning sensors.
Mounting a wheel359
Wheels and tires
Z

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:
R MO = Mercedes-Benz Original
R MOE = Mercedes-Benz Original Extended
(tires featuring run-flat characteristics)
R MO1 = 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.
Overview of abbreviations used in the follow- ing tire tables: R BA: both axles
R FA: front axle
R RA: rear axle The recommended pressures for various
operating conditions can be found:
R on the Tire and Loading Information placard
with the recommended tire pressures on
the B-pillar on the driver's side
R in the tire pressure table on the inside of the
fuel filler flap
Observe the notes on recommended tire
pressures under various operating conditions ( Y page 336).
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:
R tires of the same size on a given axle (left/
right)
R the same type of tires at a given time (sum-
mer tires, winter tires, MOExtended tires)
Exception: it is permissible to install a dif-
ferent type or make in the event of a flat
tire. Observe the "MOExtended tires (tires
with run-flat characteristics" section
( Y page 315).
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
360Wheel and tire combinations
Wheels and tires

dependent on the model and the equip-
ment installed at the factory.
The tires and wheel rims, as well as furtherinformation, can be obtained at a qualified
specialist workshop.
Wheel and tire combinations361
Wheels and tires
Z

Tires
GLK 250 BlueTEC 4MATIC
Summer tires
R19
TiresAlloy wheels
FA: 235/50 R19 99 V
RA: 255/45 R19 100 V 14FA: 7.5 J x 19 H2
Wheel offset: 1.85 in (47 mm)
RA: 8.5 J x 19 H2
Wheel offset: 2.05 in (52 mm)
All-weather tires
R17
TiresAlloy wheels
BA: 235/60 R17 102 V M+SBA: 7.5 J x 17 H2
Wheel offset: 1.87 in (47.5 mm)
R19
TiresAlloy wheels
BA: 235/50 R19 99 H M+S 15BA: 7.5 J x 19 H2
Wheel offset: 1.85 in (47 mm)
R20
TiresAlloy wheels
BA: 235/45 R20 100 H XL M+SBA: 8.0 J x 20 H2
Wheel offset: 1.77 in (45 mm)
All-terrain tires
R17
TiresAlloy wheels
BA: 235/60 R17 102 H M+SBA: 7.5 J x 17 H2
Wheel offset: 1.87 in (47.5 mm)
14
Use of snow chains not permitted. Observe the notes in the "Snow chains" sect ion.
15 Available as MOExtended tires.
362Wheel and tire combinations
Wheels and tires

Winter tires
R17
TiresAlloy wheels
BA: 235/60 R17 102 H M+SiBA: 7.5 J x 17 H2
Wheel offset: 1.87 in (47.5 mm)
R19
TiresAlloy wheels
BA: 235/50 R19 99 H M+SiBA: 7.5 J x 19 H2
Wheel offset: 1.85 in (47 mm)
GLK 350
Summer tires
R19
TiresAlloy wheels
FA: 235/50 R19 99 V
RA: 255/45 R19 100 V14FA: 7.5 J x 19 H2
Wheel offset: 1.85 in (47 mm)
RA: 8.5 J x 19 H2
Wheel offset: 2.05 in (52 mm)
All-weather tires
R17
TiresAlloy wheels
BA: 235/60 R17 102 V M+SBA: 7.5 J x 17 H2
Wheel offset: 1.87 in (47.5 mm)
R19
TiresAlloy wheels
BA: 235/50 R19 99 H M+S 15BA: 7.5 J x 19 H2
Wheel offset: 1.85 in (47 mm)
14
Use of snow chains not permitted. Observe the notes in the "Snow chains" sect ion.
15 Available as MOExtended tires.
Wheel and tire combinations363
Wheels and tires
Z

R20
TiresAlloy wheels
BA: 235/45 R20 100 H XL M+SBA: 8.0 J x 20 H2
Wheel offset: 1.65 in (42 mm)
All-terrain tires
R17
TiresAlloy wheels
BA: 235/60 R17 102 H M+SBA: 7.5 J x 17 H2
Wheel offset: 1.87 in (47.5 mm)
Winter tires
R17
TiresAlloy wheels
BA: 235/60 R17 102 H M+SiBA: 7.5 J x 17 H2
Wheel offset: 1.87 in (47.5 mm)
R19
TiresAlloy wheels
BA: 235/50 R19 99 H M+SiBA: 7.5 J x 19 H2
Wheel offset: 1.85 in (47 mm)
GLK 350 4MATIC
Summer tires
R19
TiresAlloy wheels
FA: 235/50 R19 99 V
RA: 255/45 R19 100 V14FA: 7.5 J x 19 H2
Wheel offset: 1.85 in (47 mm)
RA: 8.5 J x 19 H2
Wheel offset: 2.05 in (52 mm)
14
Use of snow chains not permitted. Observe the notes in the "Snow chains" sect ion.
364Wheel and tire combinations
Wheels and tires

All-weather tires
R17
TiresAlloy wheels
BA: 235/60 R17 102 V M+SBA: 7.5 J x 17 H2
Wheel offset: 1.87 in (47.5 mm)
R19
TiresAlloy wheels
BA: 235/50 R19 99 H M+S15BA: 7.5 J x 19 H2
Wheel offset: 1.85 in (47 mm)
R20
TiresAlloy wheels
BA: 235/45 R20 100 H XL M+SBA: 8.0 J x 20 H2
Wheel offset: 1.65 in (42 mm)
All-terrain tires
R17
TiresAlloy wheels
BA: 235/60 R17 102 H M+SBA: 7.5 J x 17 H2
Wheel offset: 1.87 in (47.5 mm)
Winter tires
R17
TiresAlloy wheels
BA: 235/60 R17 102 H M+S
iBA: 7.5 J x 17 H2
Wheel offset: 1.87 in (47.5 mm)
R19
TiresAlloy wheels
BA: 235/50 R19 99 H M+SiBA: 7.5 J x 19 H2
Wheel offset: 1.85 in (47 mm)
15
Available as MOExtended tires.
Wheel and tire combinations365
Wheels and tires
Z

Emergency spare wheel
Important safety notes
GWARNING
The wheel or tire size as well as the tire type ofthe spare wheel or emergency spare wheel
and the wheel to be replaced may differ.
Mounting an emergency spare wheel may
severely impair the driving characteristics.
There is a risk of an accident.
To avoid hazardous situations:
R adapt your driving style accordingly and
drive carefully.
R never mount more than one spare wheel or
emergency spare wheel that differs in size.
R only use a spare wheel or emergency spare
wheel of a different size briefly.
R do not switch ESP ®
off.
R have a spare wheel or emergency spare
wheel of a different size replaced at the
nearest qualified specialist workshop.
Observe that the wheel and tire dimensions
as well as the tire type must be correct.
When using an emergency spare wheel or
spare wheel of a different size, you must not
exceed the maximum speed of 50 mph
(80 km/h).
Snow chains must not be mounted on emer-
gency spare wheels.
General notes
You should regularly check the pressure of
the emergency spare wheel, particularly prior
to long trips, and correct the pressure as nec-
essary ( Y page 336). The applicable value can
be found on the wheel or under "Technical
data" ( Y page 360).
iWhen you are driving with the emergency
spare wheel mounted, the tire pressure
monitor cannot function reliably. Only
restart the tire pressure monitor when the
defective wheel has been replaced with a
new wheel. If an emergency spare wheel is mounted,
the system may continue to show the tire
pressure of the wheel that has been
removed for a few minutes. The value dis-
played for the mounted emergency spare
wheel is not the same as the current tire
pressure of the emergency spare wheel.
An emergency spare wheel may also be
mounted against the direction of rotation.
Observe the time restriction on use as well as
the speed limitation specified on the emer-
gency spare wheel.
Replace the tires after six years at the latest, regardless of wear. This also applies to the
emergency spare wheel.
Collapsible spare wheel
Removing the collapsible spare wheel
The collapsible spare wheel can be found in
the stowage well under the cargo compart-
ment floor.
X Lift the cargo compartment floor upwards
(Y page 281).
X
Remove stowage compartment :.
X Turn retaining screw ; counter-clockwise
and remove it.
X Remove collapsible spare wheel =.
X Take the wheel bolts for the collapsible
spare wheel from the vehicle tool kit.
For further information on changing a wheel
and mounting the spare wheel, see
( Y page 314).
366Emergency spare wheel
Wheels and tires

Inflating the collapsible spare wheel
! Inflate the collapsible spare wheel using
the tire inflation compressor before lower-
ing the vehicle. The wheel rim could other-
wise be damaged.
X Pull connector ? and the air hose out of
the housing.
X Remove the cap from the valve on the col-
lapsible spare wheel.
X Screw union nut : on the air hose onto the
valve.
X Make sure on/off switch A of the tire
inflation compressor is set to 0.
X Insert plug ? into the socket of the ciga-
rette lighter ( Y page 284) or into a 12 V
power socket ( Y page 284) in your vehicle.
X Make sure that the SmartKey is in position
1 (Y page 149) in the ignition lock.
X Press on/off switch A on the tire inflation
compressor to I.
The tire inflation compressor is switched
on. The tire is inflated. The tire pressure is
shown on pressure gauge =.
! Do not operate the tire inflation compres-
sor for longer than eight minutes at a time
without a break. It may otherwise overheat.
The tire inflation compressor can be oper-
ated again once it has cooled down.
X Inflate the tire to the specified tire pres-
sure. The specified tire pressure is printed on the
yellow label of the emergency spare wheel.
X When the specified tire pressure has been
reached, press on/off switch A on the
electric air pump to 0.
The tire inflation compressor is switched
off.
X Turn the SmartKey to position 0 in the igni-
tion lock.
X If the tire pressure is higher than the speci-
fied pressure, press pressure release but-
ton ; until the correct tire pressure has
been reached.
X Unscrew union nut : on the air hose from
the valve.
X Screw the cap onto the valve of the col-
lapsible spare wheel again.
X Stow plug ? and the air hose in the lower
section of the blower housing.
X Stow the tire inflation compressor in the
vehicle.
Stowing a used collapsible spare wheel
Take the following steps to stow a used col-
lapsible spare wheel. Otherwise, the collaps-
ible spare wheel will not fit in the spare wheel
well. Mercedes-Benz recommends that you
have this work carried out at a qualified spe-
cialist workshop.
! Only place the collapsible spare wheel in
the vehicle when it is dry. Otherwise, mois-
ture may get into the vehicle.
X Remove the valve extractor from the vehi-
cle tool kit.
X Unscrew the valve cap from the valve.
X Unscrew the valve insert from the valve and
release the air.
iFully deflating the tires can take a few
minutes.
X Screw the valve insert back into the valve.
X Screw the valve cap back on.
Emergency spare wheel367
Wheels and tires
Z

XPlace the valve extractor back into the vehi-
cle tool kit.
X Stow the collapsible spare wheel in the
emergency spare wheel well under the
cargo compartment and fasten in place.
368Emergency spare wheel
Wheels and tires