2018 MERCEDES-BENZ GLA SUV wheel

Securing the vehicle to prevent it from
rolling away
If your vehicle is equipped with a wheel chock, it
can be found in the tire-change tool kit
(
Ypage 283).
The folding wheel chock is an additional safety
measure to prevent the vehicle from rolling
away, for example when changing a wheel.
XFold both plates up :.
XFold out lower plate ;.
XGuide the lugs on the lower plate fully into the
openings in base plate =.
XPlace chocks or other suitable items under
the front and rear of the wheel that is diago-
nally opposite the wheel you wish to change.
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.
!Only position the jack at the appropriate
jacking point of the vehicle. Otherwise, you
could damage the vehicle.
Observe the following when raising the vehi-
cle:
RTo raise the vehicle, only use the vehicle-spe-
cific jack that has been tested and approved
by Mercedes-Benz. If used incorrectly, the
jack could tip over with the vehicle raised.
RThe jack is designed only to raise and hold the
vehicle for a short time while a wheel is being
changed. It must not be used for performing
maintenance work under the vehicle.
RAvoid changing the wheel on uphill and down-
hill slopes.
RBefore raising the vehicle, secure it from roll-
ing away by applying the parking brake and
inserting wheel chocks. Do not disengage the
parking brake while the vehicle is raised.
RThe jack must be placed on a firm, flat and
non-slip surface. On a loose surface, a large,
flat, load-bearing underlay must be used. On a
slippery surface, a non-slip underlay must be
used, e.g. rubber mats.
RDo not use wooden blocks or similar objects
as a jack underlay. Otherwise, the jack will not
be able to achieve its load-bearing capacity
due to the restricted height.
RMake sure that the distance between the
underside of the tires and the ground does not
exceed 1.2 in (3 cm).
RNever place your hands and feet under the
raised vehicle.
RDo not lie under the vehicle.
RDo not start the engine when the vehicle is
raised.
RNever open or close a door or the tailgate
when the vehicle is raised.
RMake sure that no persons are present in the
vehicle when the vehicle is raised.
Changing a wheel321
Wheels and tires
Z

XUsing lug wrench:, loosen the bolts on the
wheel you wish to change by about one full
turn. Do not unscrew the bolts completely.
Jacking points
The jacking points are located just behind the
front wheel housings and just in front of the rear
wheel housings (arrows).
XTake ratchet wrench ?out of the vehicle tool
kit and place it on the hexagon nut of jack =
so that the letters AUFare visible.
XPosition jack =at jacking point ;.
XMake sure the foot of the jack is directly
beneath the jacking point.
XTurn ratchet wrench ?until jack =sits
completely on jacking point ;and the base
of the jack lies evenly on the ground.
XTurn ratchet wrench ?until the tire is raised
a maximum of 1.2 in (3 cm) from the ground.
Removing a wheel
!Do not place wheel bolts in sand or on a dirty
surface. The bolt and wheel hub threads could
otherwise be damaged when you screw them
in.
XUnscrew the wheel bolts.
XRemove the wheel.
Mounting a new wheel
GWARNING
Oiled or greased wheel bolts or damaged
wheel bolts/hub threads can cause the wheel bolts to come loose. As a result, you could
lose a wheel while driving. There is a risk of
accident.
Never oil or grease wheel bolts. In the event of
damage to the threads, contact a qualified
specialist workshop immediately. Have the
damaged wheel bolts or hub threads
replaced/renewed. Do not continue driving.
GWARNING
If you tighten the wheel bolts or wheel nuts
when the vehicle is raised, the jack could tip
over. There is a risk of injury.
Only tighten the wheel bolts or wheel nuts
when the vehicle is on the ground.
322Changing a wheel
Wheels and tires

Always pay attention to the instructions and
safety notes in the "Changing a wheel" section
(
Ypage 319).
Only use wheel bolts that have been designed
for the wheel and the vehicle. For safety rea-
sons, Mercedes-Benz recommends that you
only use wheel bolts which have been approved for Mercedes-Benz vehicles and the respective
wheel.
!To prevent damage to the paintwork, hold
the wheel securely against the wheel hub
while screwing in the first wheel bolt.
XClean the wheel and wheel hub contact sur-
faces.
XPlace the new wheel on the wheel hub and
push it on.
XTighten the wheel bolts until they are finger-
tight.
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.
XPlace the ratchet wrench onto the hexagon
nut of the jack so that the letters ABare visi-
ble.
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 crosswise pattern in the sequence indicated ( :toA).
The specified tightening torque is 96 lb-ft
(130 Nm) .
XTurn the jack back to its initial position.
XStow the jack and the rest of the vehicle tools
in the vehicle again.
XMercedes-AMG vehicles and vehicles
with AMG Line: use the cover of the outer sill.
XCheck the tire pressure of the newly mounted
wheel and adjust it if necessary.
Observe the recommended tire pressure
(
Ypage 302).
Canada only: as long as you are driving with the
emergency spare wheel mounted, the tire pres-
sure loss warning system cannot function relia-
bly. Only restart the tire pressure loss warning
system when the defective wheel has been
replaced with a new wheel.
Vehicles with tire pressure monitor (USA
only): all mounted wheels must be equipped
with functioning sensors.
Wheel and tire combinations
General notes
You can ask for information regarding permitted
wheel/tire combinations at an authorized
Mercedes-Benz Center.
You should regularly check the pressure of the
emergency spare wheel, particularly prior to
long trips, and correct the pressure as neces-
sary (
Ypage 302). The value on the wheel is
valid.
!For safety reasons, Mercedes-Benz recom-
mends that you only use tires and wheels
which have been approved by Mercedes-Benz
specifically for your vehicle.
Wheel and tire combinations323
Wheels and tires
Z

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 spe-
cifically approved by Mercedes-Benz.
Only use tires, wheels or accessories tested
and approved by Mercedes-Benz. Certain
characteristics, e.g. handling, vehicle noise
emissions or fuel consumption, may other-
wise be adversely affected. In addition, when
driving with a load, tire dimension variations
could cause the tires to come into contact
with the bodywork and axle components. This
could result in damage to the tires or the vehi- cle.
Mercedes-Benz accepts no liability for dam-
age resulting from the use of tires, wheels or
accessories other than those tested and
approved.
Information on tires, wheels and approved
combinations can be obtained from any quali-
fied specialist workshop.
!Retreaded tires are neither tested nor rec-
ommended by Mercedes-Benz, since previ-
ous 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.
The recommended pressures for various oper-
ating conditions can be found:
Ron the Tire and Loading Information placard
on the B-pillar on the driver's side
Rin the tire pressure table in the fuel filler flap
Observe the notes on recommended tire pres-
sures under various operating conditions
(
Ypage 302).
Check tire pressures regularly, and only when
the tires are cold. Comply with the maintenance
recommendations of the tire manufacturer in
the vehicle document wallet. Notes on the vehicle equipment – always equip
the vehicle:
Rwith tires of the same size on a given axle (left
and right)
Rwith the same type of tire (summer tires,
MOExtended tires, winter tires)
Exception: it is permissible to install a differ-
ent type or make in the event of a flat tire.
Observe the "MOExt
ended t
ires (tires with
run-flat characteristics" section (Ypage 284).
Vehicles equipped with MOExtended tires are
not equipped with a TIREFIT kit at the factory. It
is therefore recommended that you additionally
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 workshop.
Emergency spare wheel
Important safety notes
GWARNING
The wheel or tire size as well as the tire type of the 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:
Radapt your driving style accordingly and
drive carefully.
Rnever mount more than one spare wheel or
emergency spare wheel that differs in size.
Ronly use a spare wheel or emergency spare
wheel of a different size briefly.
Rdo not switch ESP®off.
Rhave 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 vehicle's maximum design speed of 50 mph (80 km/h) .
324Emergency spare wheel
Wheels and tires

You should regularly check the pressure of the
emergency spare wheel, particularly prior to
long trips, and correct the pressure as neces-
sary (
Ypage 302). The value on the wheel is
valid.
Snow chains must not be mounted on emer-
gency spare wheels.
General notes
You can ask for information regarding permitted
emergency spare wheels at an authorized
Mercedes-Benz Center.
An emergency spare wheel may also be moun-
ted against the direction of rotation. Observe
the time restriction on use as well as the speed
limitation specified on the emergency spare
wheel.
Replace the tires after six years at the latest,
regardless of wear. This also applies to the
emergency spare wheel.
Tire pressure loss warning system (Canada
only): as long as you are driving with the emer-
gency spare wheel mounted, the tire pressure
loss warning system cannot function reliably.
Only restart the tire pressure loss warning sys-
tem when the defective wheel has been
replaced with a new wheel.
Vehicles with tire pressure monitor (USA
only): after an emergency spare wheel has been
mounted, the system may still display the tire
pressure of the removed wheel for a few
minutes. The value displayed for the mounted
emergency spare wheel is not the same as the
current tire pressure of the emergency spare
wheel.
Removing the emergency spare wheel
Vehicles with the "Minispare" emergency spare
wheel
The "Minispare" emergency spare wheel is
secured in emergency spare wheel bag :in the
cargo compartment.
XOpen the tailgate.
XRelease securing straps ;on emergency
spare wheel bag :.
XRemove emergency spare wheel bag :with
the "Minispare" emergency spare wheel.
XOpen emergency spare wheel bag :and
remove the "Minispare" emergency spare
wheel.
Observe the instructions and safety notes in the
"Changing a wheel" section (
Ypage 320).
Emergency spare wheel325
Wheels and tires
Z

Mercedes‑AMG
vehicles
Wheelbase106.3 in
(2699 mm)
Minimum ground
clearance6.1 in
(155 mm)
Turning radius38.7 ft
(11.8 m)
Maximum roof load165.3 lb (75 kg)
All other models
Vehicle length174.1 in
(4424 mm)
Vehicle width
including exterior
mirrors79.6 in
(2022 mm)
Vehicle height60.3 in
(1532 mm)
Minimum ground
clearance8.0 in
(204 mm)
Wheelbase106.3 in
(2699 mm)
Turning radius38.7 ft
(11.84 m)
Maximum roof load165.3 lb
(75 kg)
Vehicle data for off-road driving
Approach/departure angle
Missing values were not available at time of
going to print.
:;
Approach
and depar-
ture angles
when the
vehicle is loa-
ded and
ready to drive
When the vehicle is loaded and ready to drive, it
has a full tank, all fluids have been refilled and
the driver is in the vehicle.
For further information about approach/depar-
ture angles, see (
Ypage 153).
Maximum gradient-climbing capabil-
ity
Note that the vehicle's gradient-climbing capa-
bility depends on the off-road conditions and the
road surface conditions.
GLA 250: the maximum gradient climbing abil-
ity is 40%.
GLA 250 4MATIC: the maximum gradient
climbing ability is 65%.
Missing values for the
Mercedes‑AMG GLA 45 4MATIC were not avail-
able at the time of going to print.
Accelerate carefully and make sure that the
wheels do not spin when driving on steep ter-
rain.
334Vehicle data for off-road driving
Technical data

If the load on the front axle is reduced when
pulling away on a steep uphill slope, the front
wheels have a tendency to spin. 4ETS recogni-
zes this and brakes the wheels accordingly. The
rear wheel torque is increased, making it easier
to drive off.
For further information about the maximum gra-
dient climbing ability, see (
Ypage 154).
Vehicle data for off-road driving335
Technical data
Z