2017 MERCEDES-BENZ GLA-Class Owner's Manual

XRemove thetowin geye from th estowage
space.
The towin geye is locate dwit hth evehicl e
tool ki tunder th ecargo compartmen tfloor
(
Ypage 322).
Vehicles wit hth eTIREFI Tkit: th etowin g
eye is beneat hth etire inflation compres-
sor .
XPress th emar kon cover :inward sin th e
direction of th earrow.
XTak ecover :off th eopening.
XScrew in th etowin geye clockwise to th e
stop.
Removin gth etowing eye
XUnscrew and remove th etowin geye.
XAttac hcover :to th ebumper and press
until it engages.
XPlac eth etowin geye in th estowage well
beneat hth ecargo compartmen tfloor in
th ecargo compartmen t (
Ypage 322).
XVehicles withth eTIREFI Tkit: put bac kth e
tire inflation compressor.
Towing th e vehicle wit hth e fr ont axle
raised
Observ eth eimportant safet ynote swhen
towin gyour vehicl ewit hth efron taxl eraised
(
Ypage 333).
Only vehicles withou t4MATIC can be
towe dwit hth efront axle raised .
!Vehicles with4MATIC mus tno tbe towed
wit heither th efron tor th erear axl eraised,
as doin gso will damag eth etransmission .
Vehicles wit h4MATIC may either be towed
away wit hbot haxles on th eground or be loa-
ded up and transported.
!The ignition mus tbe switched off if th e
vehicl eis bein gtowed wit hth efron taxl e
raised. Otherwise ,ES P
®may interven eand
damag eth ebrak esystem.
XOn vehicles wit hKEYLESS-G Oor th e
KEYLESS-G Ostar tfunction: you must
use th eSmartKey instead of th eStart/Sto p
butto n (
Ypage 150).
XMakesur ethat th evehicl eis stationary.
XTurn th eSmartKey to position 2in th eigni-
tion lock.
XWhe nth evehicl eis stationary, depress th e
brak epedal and keep it depressed.
XShift th eautomatic transmission to posi-
tion P.
XReleas eth ebrak epedal .
XReleas eth eelectric parkin gbrake.
XSwitc hoff th eautomatic locking
(
Ypage 230).
XSwitc hon th ehazard warnin glamp s
(
Ypage 119).
XTurn th eSmartKey in th eignition loc kto
position 0and leav eth eSmartKey in th e
ignition lock.
Towing a vehicle wit hbot haxles on
th egroun d
It is important that you observ eth esafet y
instruction swhen towin gaway your vehicl e
(
Ypage 333).
XOn vehicles wit hKEYLESS-G Oor th e
KEYLESS-G Ostar tfunction: you must
use th eSmartKey instead of th eStart/Sto p
butto n (
Ypage 150).
The automatic transmission automatically
shift sto position Pwhen you open th edriver's
or front-passenger doo ror when you remove
th eSmartKey from th eignition lock. In order
to ensur ethat th eautomatic transmission
stays in position Nwhen towin gth evehicle,
you mus tobserv eth efollowin gpoints :
XMakesur ethat th evehicl eis stationary.
XTurn th eSmartKey to position 2in th eigni-
tion lock.
Towing and tow-starting335
Breakdown assistance
Z

XDepress and hold the brake pedal.
XShift the automatic transmission to posi-
tionN.
XLeave the SmartKey in position 2in the
ignition lock.
XRelease the brake pedal.
XRelease the electric parking brake.
XSwitch on the hazard warning lamps
(
Ypage 119).
iIn order to signal a change of direction
when towing the vehicle with the hazard
warning lamps switched on, use the com-
bination switch as usual. In this case, only
the indicator lamps for the direction of
travel flash. After resetting the combina-
tion switch, the hazard warning lamp starts
flashing again.
Transporting the vehicle
4MATIC vehicles/vehicles with auto-
matic transmission
!When the vehicle is loaded for transport,
the front and rear axles must be stationary
and on the same transportation vehicle.
Positioning over the connection point of the
transport vehicle is not permitted. The drive
train may otherwise be damaged.
All vehicles
!You may only secure the vehicle by the
wheels, not by parts of the vehicle such as axle or steering components. Otherwise,
the vehicle could be damaged.
XTurn the SmartKey to position
2in the igni-
tion lock (
Ypage 149).
XShift the transmission to position N.
As soon as the vehicle has been loaded:
XPrevent the vehicle from rolling away by
applying the electric parking brake.
XShift the transmission to position P.
XTurn the SmartKey to position 0in the igni-
tion lock and remove it.
XSecure the vehicle.
The towing eye can be used to pull the vehicle
onto a trailer or transporter for transporting
purposes.
Notes on 4MATIC vehicles
!
Vehicles with 4MATIC must not be towed
with either the front or the rear axle raised,
as doing so will damage the transmission.
Vehicles with 4MATIC may only either be
towed away with both axles on the ground or
be loaded up and transported.
If the vehicle's transmission, front, or rear
axle is damaged, have the vehicle transported
on a truck or trailer.
In the event of damage to the electrical
system:
If the battery is defective, the automatic
transmission will be locked in position P. To
shift the automatic transmission to position
N, you must provide power to the vehicle's
electrical system in the same way as when
jump-starting (
Ypage 331).
Have the vehicle transported on a transporter
or trailer.
336Towing and tow-starting
Breakdown assistance

Tow-starting (emergency engine
starting)
!
Vehicles with automatic transmission
must not be tow-started. You could other-
wise damage the automatic transmission.
iYou can find information on "Jump-start-
ing" under (
Ypage 331).
Fuses
Important safety notes
GWARNING
If you manipulate or bridge a faulty fuse or if
you replace it with a fuse with a higher amper- age, the electric cables could be overloaded.
This could result in a fire. There is a risk of an
accident and injury.
Always replace faulty fuses with the specified
new fuses having the correct amperage.
Blown fuses must be replaced with fuses of
the same rating, which you can recognize by
the color and value. The fuse ratings are listed
in the fuse allocation chart.
If a newly inserted fuse also blows, have the
cause traced and rectified at a qualified spe-
cialist workshop, e.g. an authorized
Mercedes-Benz Center.
!Only use fuses that have been approved
for Mercedes-Benz vehicles and which
have the correct fuse rating for the system
concerned. Only use fuses marked with an
"S". Otherwise, components or systems
could be damaged.
The fuses in your vehicle serve to close down
faulty circuits. If a fuse blows, all the compo-
nents on the circuit and their functions stop
operating.
Before changing a fuse
XSecure the vehicle against rolling away
(
Ypage 171).
XSwitch off all electrical consumers.
XVehicles without KEYLESS-GO: remove
the SmartKey from the ignition lock.
XVehicles with KEYLESS-GO start-func-
tion or KEYLESS-GO: open the driver's
door.
The on-board electronics now have status
0 . This is the same as the SmartKey having
been removed.
The fuses are located in various fuse boxes:
RFuse box in the engine compartment on the left-hand side of the vehicle, when viewed
in the direction of travel
RFuse box in the front-passenger footwell
The fuse allocation chart is on the fuse box in
the front-passenger footwell (
Ypage 338).
Fuse box in the engine compartment
GWARNING
When the hood is open and the windshield
wipers are set in motion, you can be injured by
the wiper linkage. There is a risk of injury.
Always switch off the windshield wipers and
the ignition before opening the hood.
!Make sure that no moisture can enter the
fuse box when the cover is open.
!When closing the cover, make sure that it
is lying correctly on the fuse box. Moisture
seeping in or dirt could otherwise impair
the operation of the fuses.
Fuses337
Breakdown assistance
Z

XOpen the hood.
XUse a dry cloth to remove any moisture
from the fuse box.
XTo open:open clamps ;.
XFold up cover :in the direction of the
arrow and remove it.
XTo close: check whether the seal is lying
correctly in cover :.
XInsert cover:at the back into openings
= on the fuse box.
XFold down cover :.
XHook clamps;into the fuse box and
close.
XClose the hood.
Fuse box in the front-passenger foot-
well
!
Make sure that no moisture can enter the
fuse box when the cover is open.
!When closing the cover, make sure that it
is lying correctly on the fuse box. Moisture seeping in or dirt could otherwise impair
the operation of the fuses.
XTo open:
open the front-passenger door.
XRemove the floormat.
XFold out perforated floor covering :in the
direction of the arrow.
XTo release cover =, press retaining
clamp ;.
XFold out cover =in the direction of the
arrow to the catch.
XRemove cover =forwards.
Fuse allocation chart ?is located on the
lower right-hand side of cover =.
XTo close:insert cover =on the left-hand
side of the fuse box into the retainer.
Cover =engages in the retainers.
XFold down cover =until clamps ;lock
audibly.
XFold back perforated floor covering :.
XInstall the floormats.
338Fuses
Breakdown assistance

Useful information............................340
Important safety notes .....................340
Operation ........................................... 340
Winter operation ............................... 342
Tire pressure ..................................... 343
Loading the vehicle ..........................351
All about wheels and tires ...............355
Changing a wheel .............................. 363
Wheel and tire combinations ...........367
339
Wheels and tires

Useful information
i
This Operator's Manual describes all
models and all standard and optional equip-
ment of your vehicle available at the time of
publication of the Operator's Manual.
Country-specific differences are possible.
Please note that your vehicle may not be
equipped with all features described. This
also applies to safety-related systems and
functions.
iRead the information on qualified special-
ist workshops (
Ypage 25).
Important safety notes
GWARNING
If wheels and tires of the wrong size are used, the wheel brakes or suspension components
may be damaged. There is a risk of an acci-
dent.
Always replace wheels and tires with those
that fulfill the specifications of the original
part.
When replacing wheels, make sure to use the
correct:
Rdesignation
Rmodel
When replacing tires, make sure to use the
correct:
Rdesignation
Rmanufacturer
Rmodel
GWARNING
A flat tire severely impairs the driving, steer-
ing and braking characteristics of the vehicle.
There is a risk of accident.
Tires without run-flat characteristics:
Rdo not drive with a flat tire.
Rimmediately replace the flat tire with your
emergency spare wheel or spare wheel, or
consult a qualified specialist workshop.
Tires with run-flat characteristics:
Rpay attention to the information and warn-
ing notices on MOExtended tires (tires with
run-flat characteristics).
Accessories that are not approved for your
vehicle by Mercedes-Benz or are not being
used correctly can impair the operating
safety.
Before purchasing and using non-approved
accessories, visit a qualified specialist work-
shop and inquire about:
Rsuitability
Rlegal stipulations
Rfactory recommendations
Information on the sizes and types of wheels
and tires for your vehicle can be found under "Wheel/tire combinations" (
Ypage 367).
Information on tire pressure can be found:
Ron the Tire and Loading Information placard
on the B-pillar on the driver's side
(
Ypage 351)
Rin the tire pressure table in the fuel filler flap
(
Ypage 170)
Runder "Tire pressure" (Ypage 343)
Operation
Information on driving
Check the tire pressure when the vehicle is
heavily laden and adjust prior to a trip.
While driving, pay attention to vibrations,
noises and unusual handling characteristics,
e.g. pulling to one side. This may indicate that
the wheels or tires are damaged. If you sus-
pect that a tire is defective, reduce your
speed immediately. Stop the vehicle as soon
as possible to check the wheels and tires for
damage. Hidden tire damage could also be
causing the unusual handling characteristics.
If you find no signs of damage, have the tires
and wheels checked at a qualified specialist
workshop.
340Operation
Wheels and tires

When parking your vehicle, make sure that
the tires do not get deformed by the curb or
other obstacles. If they cannot be avoided,
drive over obstacles such as curbs slowly and
at an obtuse angle. Otherwise, you may dam-
age the wheels or tires.
Regular checking of wheels and tires
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 wheels and tires for damage at least
once a month. Check wheels and tires 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 341). 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
mount anything onto the valve other than the
standard valve cap or other valve caps
approved by Mercedes-Benz for your vehicle.
Do not use any other valve caps or systems,
e.g. tire pressure monitoring systems.
Regularly check the pressure of all the tires
particularly prior to long trips. Adjust the tire
pressure as necessary (
Ypage 343). The service life of tires depends, among other
things, on the following factors:
Rdriving style
Rtire pressure
Rdistance covered
Notes on 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.
Marking :shows where the bar indicator
(arrow) for tread wear is integrated into the
tire tread.
Treadwear indicators (TWI) are required by
law. Six indicators are positioned on the tire
tread. They are visible once a tread depth of
Operation341
Wheels and tires
Z

approximatelyáin(1.6 mm )ha sbeen
re ached. If this is the case, the tire is so worn
that it must be replaced.
Selecting, mounting and replacing
tires
ROnly mount tires and wheels of the same
type and make.
Exception: it is permissible to install a dif-
ferent type or make in the event of a flat
tire. Observe here the "MOExtended tires
(tires with run-flat characteristics)" section
(
Ypage 323).
ROnly mount tires of the correct size onto
the wheels.
RBreak in new tires at moderate speeds for
the first 60 miles (100 km). They only reach their full performance after this distance.
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 six years at the lat-
est, regardless of wear.
MOExtended tires (tires with run-flat
properties)
With MOExtended tires (tires with run flat
characteristics), you can continue to drive
your vehicle even if there is a total loss of
pressure in one or more tires.
MOExtended tires may only be used in con-
junction with an active tire pressure loss
warning system or with an active tire pressure
monitor and on wheels specifically tested by
Mercedes-Benz.
Notes on driving with MOExtended tires with
a flat tire (
Ypage 323).
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.
Winter operation
General notes
Have your vehicle winter-proofed at a quali-
fied specialist workshop at the onset of win-
ter.
Observe the notes in the "Changing a wheel"
section (
Ypage 363).
Driving with summer tires
At temperatures below 45
‡(+7 †), summer
tires lose elasticity and therefore traction and
braking power. Change the tires on your vehi-
cle to M+S tires. Using summer tires at very
cold temperatures could cause cracks to
form, thereby damaging the tires perma-
nently. Mercedes-Benz cannot accept
responsibility for this type of damage.
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.
M+S tires
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.
At temperatures below 45 ‡(+7 †), use win-
ter tires or all-season tires. 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 pro-
342Winter operation
Wheels and tires