2015 MERCEDES-BENZ GLA-Class snow chains

Indicated temperatures just above the freez-
ing point do not guarantee that the road sur-
face is free of ice. The road may still be icy,
especially in wooded areas or on bridges.
You should pay special attention to road con-
ditions when temperatures are around freez-
ing point.
For more information on driving with snow
chains, see (Y page 327).
For more information on driving with summer tires, see (Y page 326).
Observe the notes in the "Winter operation"
section (Y page 326). Off-road driving
Important safety notes G
WARNING
If you drive on a steep incline at an angle or
turn when driving on an incline, the vehicle
could slip sideways, tip and rollover. There is a risk of an accident.
Always drive on a steep incline in the line of
fall (straight up or down) and do not turn the
vehicle. G
WARNING
Flammable material such as leaves, grass or
twigs may ignite if they come into contact with hot parts of the exhaust system. There is a risk of fire.
When driving off road or on unpaved roads,
check the vehicle's underside regularly. In
particular, remove parts of plants or other
flammable materials which have become
trapped. In the case of damage, contact a
qualified specialist workshop. !
There is a risk of damage to the vehicle if:
R the vehicle becomes stuck, e.g. on a high
curb or an unpaved road
R you drive too fast over an obstacle, e.g. a
curb or a hole in the road
R a heavy object strikes the undercarriage
or parts of the chassis
In situations like this, the body, the under-
carriage, chassis parts, wheels or tires
could be damaged without the damage
being visible. Components damaged in this
way can unexpectedly fail or, in the case of
an accident, no longer withstand the strain
they are designed to.
If the underbody paneling is damaged,
combustible materials such as leaves,
grass or twigs can gather between the
underbody and the underbody paneling. If
these materials come in contact with hot
parts of the exhaust system, they can catch fire.
In such situations, have the vehicle
checked and repaired immediately at a
qualified specialist workshop. If on con-
tinuing your journey you notice that driving
safety is impaired, pull over and stop the
vehicle immediately, paying attention to
road and traffic conditions. In such cases,
visit a qualified specialist workshop.
The vehicle is only designed for easily nego-
tiable off-road terrain and poor road surfaces.
When driving off-road, substances such as
sand, mud and water or water mixed with oil
may get into the brakes. This could result in a
reduced braking effect or in total brake failure
and also in increased wear and tear. The brak- ing characteristics change depending on the
material ingressing the brakes. Clean the
brakes after driving off-road. If you detect a
reduced braking effect or grinding noises,
have the brake system checked in a qualified
specialist workshop as soon as possible.
Adapt your driving style to the different brak- ing characteristics.
Driving off-road increases the likelihood of
damage to the vehicle, which, in turn, can lead 168
Driving tipsDriving and parking

vated. SPORT handling mode remains activa-
ted.
RACE START is deactivated immediately if
you release the accelerator pedal during
RACE START or if any of the activation condi-
tions are no longer fulfilled. The RACE
RACE START START
Not Possible
Not Possible orRACE START Canceled
RACE START Canceled
message appears in the multifunction dis-
play.
i If RACE START is used repeatedly within a
short period of time, it is only available
again after the vehicle has been driven a
certain distance. 4MATIC
4MATIC ensures that all four wheels are per-
manently driven. Together with ESP ®
, it
improves the traction of your vehicle when-
ever a drive wheel spins due to insufficient
grip.
If you fail to adapt your driving style, 4MATIC
can neither reduce the risk of accident nor
override the laws of physics. 4MATIC cannot
take account of road, weather and traffic con- ditions. 4MATIC is only an aid. You are
responsible for the distance to the vehicle in
front, for vehicle speed, for braking in good
time and for staying in your lane.
If a drive wheel spins due to insufficient grip:
R Only depress the accelerator pedal as far as
necessary when pulling away.
R Accelerate less when driving.
! Never tow the vehicle with one axle
raised. This may damage the transfer case.
Damage of this sort is not covered by the
Mercedes-Benz Limited Warranty. All
wheels must remain either on the ground or be fully raised. Observe the instructions for
towing the vehicle with all wheels in full
contact with the ground.
i In wintry driving conditions, the maximum
effect of 4MATIC can only be achieved if
you use winter tires (M+S tires), with snow
chains if necessary. DSR
Important safety notes i
DSR (Downhill Speed Regulation) is only
available for vehicles with the Off-Road
Engineering package.
DSR is an aid to assist you when driving down-
hill. It keeps the speed of travel at the speed
selected on the on-board computer. The
steeper the downhill gradient, the greater the
DSR braking effect on the vehicle. When driv-
ing on flat stretches of road or on an uphill
gradient, the DSR braking effect is minimal or nonexistent.
DSR controls the vehicle’s speed when it is
activated and the transmission is in position
D, Ror N. You can drive at a higher or a lower
speed than that set on the on-board computer at any time by accelerating or braking.
If you fail to adapt your driving style, DSR can
neither reduce the risk of accident nor over-
ride the laws of physics. DSR cannot take
account of road, weather and traffic condi-
tions. DSR is only an aid. You are responsible
for the distance to the vehicle in front, for
vehicle speed, for braking in good time and for staying in your lane.
You are always responsible for keeping con-
trol of the vehicle and for assessing whether
the downhill gradient can be managed. DSR
may not always be able to keep to the set
speed, depending on road surface and tire
conditions. Select a set speed suitable for the prevailing conditions and when necessary,
apply the brakes manually. G
WARNING
If the speed driven and the set speed deviate and you activate DSR on a slippery road sur-
face, the wheels may lose traction. There is an
increased danger of skidding and accidents.
Before switching DSR on, please take into
consideration the road surface and the differ- ence between driving speed and the set
speed. 184
Driving systemsDriving and parking

Off-road program
General notes i
The off-road drive program is only availa-
ble on vehicles with the Off-Road Engineer-
ing package.
The off-road program assists you in driving
off-road. The engine's performance charac-
teristics and the gearshifting characteristics
of the automatic transmission are adapted for
this purpose. ABS, ESP ®
and ETS programs
especially adapted to off-road driving are also
activated.
Do not use the off-road program on roads that are snow-covered or icy or if you have moun-
ted snow chains on your vehicle.
For information about driving off-road, see
(Y page 168).
Switching the off-road program on or off X
To switch on: press the0043button.
Indicator lamp 0044lights up.
X To switch off: press button0043.
Indicator lamp 0044goes out. Display in the assistance graphic
X
Select the Assistance Graphic Assistance Graphic function
using the on-board computer
(Y page 213).
When the off-road program is activated,
symbol 0043appears in the assistance
graphic display. PARKTRONIC
Important safety notes PARKTRONIC is an electronic parking aid with
ultrasonic sensors. It monitors the area
around your vehicle using six sensors in the
front bumper and six sensors in the rear
bumper. PARKTRONIC indicates visually and
audibly the distance between your vehicle
and an object.
PARKTRONIC is only an aid. It is not a replace-
ment for your attention to your immediate
surroundings. You are always responsible for
safe maneuvering, parking and exiting a park- ing space. When maneuvering, parking or
pulling out of a parking space, make sure thatthere are no persons, animals or objects in
the area in which you are maneuvering.
! When parking, pay particular attention to
objects above or below the sensors, such
as flower pots or trailer drawbars. PARK-
TRONIC does not detect such objects when they are in the immediate vicinity of the
vehicle. You could damage the vehicle or
the objects. 186
Driving systemsDriving and parking

Parking tips:
R On narrow roads, drive as close to the park-
ing space as possible.
R Parking spaces that are littered or over-
grown might be identified or measured
incorrectly.
R Parking spaces that are partially occupied
by trailer drawbars might not be identified
as such or be measured incorrectly.
R Snowfall or heavy rain may lead to a parking
space being measured inaccurately.
R Pay attention to the PARKTRONIC
(Y page 188) warning messages during the
parking procedure.
R You can intervene in the steering procedure
to correct it at any time. Active Parking
Assist will then be canceled.
R When transporting a load which protrudes
from your vehicle, you should not use
Active Parking Assist.
R Never use Active Parking Assist when snow
chains are installed.
R Make sure that the tire pressures are
always correct. This has a direct influence
on the parking characteristics of the vehi-
cle.
Use Active Parking Assist for parking spaces:
R parallel or at right angles to the direction of
travel
R that are on straight roads, not bends
R that are on the same level as the road, e.g.
not on the pavement
Detecting parking spaces Objects located above the height range of
Active Parking Assist will not be detected
when the parking space is measured. These
are not taken into account when the parking
procedure is calculated, e.g. overhanging
loads, tail sections or loading ramps of goods vehicles. G
WARNING
If there are objects above the detection range, Active Parking Assist may turn prematurely.
You may cause a collision as a result. There is
a risk of an accident.
If there are objects above the detection range,
stop and deactivate Active Parking Assist.
For further information on the detection
range (Y page 187).
Active Parking Assist does not assist you
parking in spaces at right angles to the direc-
tion of travel if:
R two parking spaces are located directly
next to one another
R the parking space is directly next to a low
obstacle such as a low curb
R you park forwards
Active Parking Assist does not assist you
parking in spaces that are parallel or at right
angles to the direction of travel if:
R the parking space is on a curb
R the parking space is apparently blocked,
for example by foliage or grass paving
blocks
R the range of movement is too small
R the parking space is bordered by an obsta-
cle which is not clearly defined such as a
tree or a trailer 0043
Detected parking space on the left
0044 Parking symbol
0087 Detected parking space on the right
Active Parking Assist is automatically activa-
ted when driving forwards. The system is
operational at speeds of up to approximately
22 mph (35 km/h). While in operation, the 190
Driving systemsDriving and parking

Assistance menu
Introduction In the
DriveAssist
DriveAssist menu, you have the fol-
lowing options:
R Displaying the assistance graphic
(Y page 213)
R Activating/deactivating ESP ®
(Y page 213)
R Activating/deactivating COLLISION PRE-
VENTION ASSIST PLUS (Y page 214)
R Activating/deactivating ATTENTION
ASSIST (Y page 214)
R Activating/deactivating Blind Spot Assist
(Y page 214)
R Activating/deactivating Lane Keeping
Assist (Y page 214)
Assistance graphic X
Press the 0059or0065 button on the steer-
ing wheel to select the DriveAssist DriveAssistmenu.
X Press 0063or0064 to select Assistance
Assistance
Graphic
Graphic.
X Press the 0076button.
The multifunction display shows the DIS-
TRONIC PLUS distance display in the assis- tance graphic. The assistance graphic displays the status of
and information from the following driving
systems or driving safety systems:
R DISTRONIC PLUS (Y page 179)
R COLLISION PREVENTION ASSIST PLUS
(Y page 66)
R ATTENTION ASSIST (Y page 197)
R Lane Keeping Assist (Y page 200)
R DSR (Y page 184)
R Off-road program (Y page 186)
R Rear window wiper (Y page 122)
Deactivating/activating ESP ® Observe the "Important safety notes" section
in the description of ESP (Y page 69). G
WARNING
If you deactivate ESP ®
, ESP ®
no longer sta-
bilizes the vehicle. There is an increased risk
of skidding and an accident.
Only deactivate ESP ®
in the situations descri-
bed in the following.
It may be best to deactivate ESP ®
in the fol-
lowing situations:
R when using snow chains
R in deep snow
R on sand or gravel
Activating/deactivating ESP ®
on AMG vehi-
cles (Y page 70).
For further information about ESP ®
, see
(Y page 68).
X Start the engine.
X Press the 0059or0065 button on the steer-
ing wheel to select the DriveAssist
DriveAssist menu.
X Press the 0063or0064 button to select
ESP ESP . Menus and sub
menus
213On-board computer and displays Z

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 004Dsnowflake
symbol in addition to the M+S marking pro-
vide the best possible grip in wintry road con- ditions. Only these tires will allow driving
safety systems such as ABS and ESP ®
to
function optimally in winter. These tires have
been developed specifically for driving in
snow.
Use M+S tires of the same make and tread on all wheels to maintain safe handling charac-
teristics.
Always observe the maximum permissible
speed specified for the M+S tires you have
mounted.
Once the winter tires are mounted:
X Check the tire pressures (Y page 331).
X Restart the tire pressure loss warning sys-
tem 3
(Y page 331) or restart the tire pres-
sure monitor 4
(Y page 334). Snow chains
G
WARNING
If snow chains are mounted on the rear
wheels, the snow chains could cause abrasion
to the vehicle body or to chassis components.
This could cause damage to the vehicle or the tires. There is a risk of an accident.
To avoid hazardous situations:
R never mount snow chains on the rear
wheels
R only mount snow chains in pairs on the
front wheels.
! On some tire sizes there is not enough
space for snow chains. To avoid damage to the vehicle or tires, observe the "Wheel and
tire combinations" section under "Tires and wheels". For safety reasons, Mercedes-Benz recom-
mends that you only use snow chains that
have been specially approved for your vehicle
by Mercedes-Benz, or are of a corresponding standard of quality.
If you intend to mount snow chains, please
bear the following points in mind:
R Snow chains may not be mounted on all
wheel/tire combinations. Permissible
wheel-tire combinations (Y page 352).
R Only use snow chains when driving on
roads completely covered by snow.
Remove the snow chains as soon as possi-
ble when you come to a road that is not
snow-covered.
R Local regulations may restrict the use of
snow chains. Observe the appropriate reg-
ulations if you wish to mount snow chains.
R Do not exceed the maximum permissible
speed of 30 mph (50 km/h).
R When snow chains are installed, never use
Active Parking Assist (Y page 189).
i You may wish to deactivate ESP ®
(Y page 69) when pulling away with snow
chains installed. You can thereby allow the wheels to spin in a controlled manner, ach-
ieving an increased driving force (cutting
action).
3 Canada
4 USA, Canada Winter operation
327Wheels and tires Z

Information on air pressure for the tires on
your vehicle can be found:
R on the vehicle's Tire and Loading Informa-
tion placard on the B-pillar
R on the tire pressure label on the fuel filler
flap
R in the "Tire pressure information" section
Checking tire pressures manually To determine and set the correct tire pres-
sure, proceed as follows:
X
Remove the valve cap of the tire that is to
be checked.
X Press the tire pressure gauge securely onto
the valve.
X Read the tire pressure and compare it with
the recommended value on the Tire and
Loading Information placard on the B-pillar on the driver's side of your vehicle.
X If necessary, increase the tire pressure to
the recommended value (Y page 328).
X If the tire pressure is too high, release air by
pressing down the metal pin in the valve
using the tip of a pen, for example. Then,
check the tire pressure again using the tire
pressure gauge.
X Screw the valve cap onto the valve.
X Repeat these steps for the other tires. Tire pressure loss warning system
(Canada only)
General notes While the vehicle is in motion, the tire pres-
sure loss warning system monitors the set
tire pressure using the rotational speed of the wheels. This enables the system to detect
significant pressure loss in a tire. If the speed
of rotation of a wheel changes as a result of a loss of pressure, a corresponding warning
message will appear in the multifunction dis- play. You can recognize the tire pressure loss warn-
ing in the multifunction display in the Serv.
Serv.
menu, by the Run RunFlat
Flat Indicator
Indicator Active
Active
Press 'OK' to Restart
Press 'OK' to Restart message. Further
information on the message display can be
found under "Restarting the tire pressure loss
warning system" (Y page 331).
Important safety notes The tire pressure warning system does not
warn you of an incorrectly set tire pressure.
Observe the notes on the recommended tire
pressure (Y page 328).
The tire pressure loss warning does not
replace the need to regularly check the tire
pressure. An even loss of pressure on several tires at the same time cannot be detected by
the tire pressure loss warning system.
The tire pressure monitor is not able to warn
you of a sudden loss of pressure, e.g. if the
tire is penetrated by a foreign object. In the
event of a sudden loss of pressure, bring the
vehicle to a halt by braking carefully. Avoid
abrupt steering maneuvers.
The function of the tire pressure loss warning system is limited or delayed if:
R snow chains are mounted on your vehicle's
tires.
R road conditions are wintry.
R you are driving on sand or gravel.
R you adopt a very sporty driving style (cor-
nering at high speeds or driving with high
rates of acceleration).
R you are driving with a heavy load (in the
vehicle or on the roof).
Restarting the tire pressure loss warn-
ing system Restart the tire pressure loss warning system
if you have:
R changed the tire pressure
R changed the wheels or tires
R mounted new wheels or tires Tire pressure
331Wheels and tires Z

Tires
GLA 250 Summer tires
R 17
Tires Wheels
BA: 215/6
0 R17 96 V BA: 6.5 J x 17 H2
Wheel offset: 1.50 in (38 mm)
R 18
Tires Wheels
BA: 235/50 R18 97 V
6, 7 BA: 7.0 J x 18 H2
Wheel offset: 1.81 in (46 mm)
R 19
Tires Wheels
BA: 235/45 R19 95 V
6, 7 BA: 8.0 J x 19 H2
Wheel offset: 1.71 in (43.5 mm)
Winter tires
R 17
Tires Wheels
BA: 215/60 R17 96 H M+S
004D BA: 6.5 J x 17 H2
Wheel offset: 1.50 in (38 mm)
R 18
Tires Wheels
BA: 215/55 R18 95 H M+S
004D6 BA: 6.5 J x 18 H2
Wheel offset: 1.50 in (38 mm)
BA: 235/50 R18 97 H M+S
004D7 BA: 7.0 J x 18 H2
Wheel offset: 1.81 in (46 mm)
6
Also available as MOExtended tires.
7 Use of snow chains not permitted. Observe the notes in the "Snow chains" section. 354
Wheel and tire combinationsWheels and tires