2015 MERCEDES-BENZ CLA-Class snow chains

R
DISTRONIC PLUS (Y page 176)
R COLLISION PREVENTION ASSIST PLUS
(Y page 64)
R ATTENTION ASSIST (Y page 192)
R Lane Keeping Assist (Y page 196)
X Press :to display the ATTEN-
TION ASSIST assessment.
Deactivating/activating ESP ®Observe the important safety notes on ESP
®
(Y page 67). 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 68).
For further information about ESP ®
, see
(Y page 67).
X Start the engine.
X Press the =or; button on the steer-
ing wheel to select the DriveAssist
DriveAssist menu.
X Press 9or: to select ESP ESP.
X Press the abutton.
The current selection is displayed.
X To activate/deactivate: press thea
button again.
ESP ®
is deactivated if the åwarning
lamp in the instrument cluster lights up
continuously when the engine is running.
If the ÷ andå warning lamps light up
continuously, ESP ®
is not available due to a
malfunction. Observe the information on warning lamps
(Y
page 252).
Observe the information on display messages
(Y page 218).
Activating/deactivating COLLISION
PREVENTION ASSIST PLUS X
Press the =or; button on the steer-
ing wheel to select the DriveAssist DriveAssistmenu.
X Press the 9or: button to select
Collision Prevent. Assist
Collision Prevent. Assist .
X Press the abutton.
The current selection is displayed.
X To activate/deactivate: press thea
button again.
When COLLISION PREVENTION ASSIST
PLUS is deactivated, the æsymbol
appears in the multifunction display in the
assistance graphic display.
For further information about COLLISION
PREVENTION ASSIST PLUS, see (Y page 64).
Activating/deactivating ATTENTION
ASSIST X
Press the =or; button on the steer-
ing wheel to select the DriveAssist DriveAssistmenu.
X Press the 9or: button to select
Attention Assist
Attention Assist .
X Press the abutton.
The current selection is displayed.
X Press ato confirm.
X Press the :or9 button to set Off
Off ,
Standard Standard orSensitive Sensitive .
X Press the abutton to save the setting.
When ATTENTION ASSIST is deactivated,
the é symbol appears in the multifunc-
tion display in the assistance graphics dis-
play.
For further information about ATTENTION
ASSIST, see (Y page 192).210
Menus and submenusOn-board computer and displays

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.
When you have mounted the M+S tires:
X Check the tire pressures (Y page 322).
X Restart the tire pressure monitor
(Y page 328).
X Restart the tire pressure loss warning sys-
tem (Canada) (Y page 326) or restart the
tire pressure monitor (USA, Canada)
(Y page 328). 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".
! Vehicles with steel wheels:
if you
mount snow chains on steel wheels, you
may damage the hub caps. Remove the hub caps from the relevant wheels before
mounting the snow chains.
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 correspondingstandard of quality. For more information,
please contact a qualified specialist work-
shop.
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 345).
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 184).
You may wish to deactivate ESP ®
when pull-
ing away with snow chains installed
(Y page 67). You can thereby allow the wheels
to spin in a controlled manner, achieving an
increased driving force (cutting action). Winter operation
321Wheels and tires Z

Checking the tire pressures
Important safety notes Observe the notes on tire pressure
(Y page 322).
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 (Y page 159)
R in the "Tire pressure" 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 to
the recommended value on the Tire and
Loading Information placard or the tire
pressure table (Y page 322).
X If the tire pressure is too low, increase the
tire pressure to the recommended value.
X If the tire pressure is too high, release air.
To do so, press 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 checker.
X Screw the valve cap onto the valve.
X Repeat these steps for the other tires. Tire pressure loss warning system
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 displaying this message can
be found under "Restarting the tire pressure
loss warning system" (Y page 326).
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 322).
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). Tire pressure
325Wheels and tires Z

Tires
CLA 250 Summer tires
R 17
Tires Wheels
BA: 225/4
5 R17 91 V 2 BA: 7.5 J x 17 H2
Wheel offset: 2.07 in (52.5 mm)
BA: 225/45 R17 91 W
2 BA: 7.5 J x 17 H2
Wheel offset: 2.07 in (52.5 mm)
R 18
Tires Wheels
BA: 225/40 R18 92 W XL
2, 3, 4 BA: 7.5 J x 18 H2
Wheel offset: 2.05 in (52 mm)
All-weather tires
R 17
Tires Wheels
BA: 225/45 R17 91 H M+S
2, 3 BA: 7.5 J x 17 H2
Wheel offset: 2.07 in (52.5 mm)
R 18
Tires Wheels
BA: 225/40 R18 92 H XL M+S
2 BA: 7.5 J x 18 H2
Wheel offset: 2.05 in (52 mm)
CLA 250 Sport
Summer tires
R 18
Tires Wheels
BA: 235/40 ZR18 95 Y XL
2 BA: 8.0 J x 18 H2
Wheel offset: 1.89 in (48 mm)
2
Use of snow chains not permitted. Observe the notes in the "Snow chains" section.
3 Also available as MOExtended tires.
4 Observe the notes on "Large wheels" in the "Wheel/tire combinations" section. Wheel and tire combinations
347Wheels and tires Z

R 19
Tires Wheels
BA: 235/35 ZR19 91 Y XL
2 BA: 8.0 J x 19 H2
Wheel offset: 1.89 in (48 mm)
Winter tires
R 17
Tires Wheels
BA: 205/50 R17 93 H XL M+S
i3 BA: 6.5 J x 17 H2
Wheel offset: 1.93 in (49 mm)
R 18
Tires Wheels
BA: 225/40 R18 92 H XL M+S
i2 BA: 7.5 J x 18 H2
Wheel offset: 2.05 in (52 mm)
BA: 235/40 R18 95 V XL M+S
i2 BA: 8.0 J x 18 H2
Wheel offset: 1.89 in (48 mm)
CLA 250 4MATIC
Summer tires
R 17
Tires Wheels
BA: 225/45 R17 91 V
2 BA: 7.5 J x 17 H2
Wheel offset: 2.07 in (52.5 mm)
BA: 225/45 R17 91 W
2 BA: 7.5 J x 17 H2
Wheel offset: 2.07 in (52.5 mm)
R 18
Tires Wheels
BA: 225/40 R18 92 W XL
2, 3, 4 BA: 7.5 J x 18 H2
Wheel offset: 2.05 in (52 mm)
2
Use of snow chains not permitted. Observe the notes in the "Snow chains" section.
3 Also available as MOExtended tires.
4 Observe the notes on "Large wheels" in the "Wheel/tire combinations" section. 348
Wheel and tire combinationsWheels and tires

All-weather tires
R 17
Tires Wheels
BA: 225/45 R17 91 H M+S
2, 3 BA: 7.5 J x 17 H2
Wheel offset: 2.07 in (52.5 mm)
R 18
Tires Wheels
BA: 225/40 R18 92 H XL M+S
2 BA: 7.5 J x 18 H2
Wheel offset: 2.05 in (52 mm)
CLA 250 Sport 4MATIC
Summer tires
R 18
Tires Wheels
BA: 235/40 ZR18 95 Y XL
2 BA: 8.0 J x 18 H2
Wheel offset: 1.89 in (48 mm)
R 19
Tires Wheels
BA: 235/35 ZR19 91 Y XL
2 BA: 8.0 J x 19 H2
Wheel offset: 1.89 in (48 mm)
Winter tires
R 17
Tires Wheels
BA: 205/50 R17 93 H XL M+S
i2 BA: 6.5 J x 17 H2
Wheel offset: 1.93 in (49 mm)
2
Use of snow chains not permitted. Observe the notes in the "Snow chains" section.
3 Also available as MOExtended tires. Wheel and tire combinations
349Wheels and tires Z

R 18
Tires Wheels
BA: 225/40 R18 92 H XL M+S
i2 BA: 7.5 J x 18 H2
Wheel offset: 2.05 in (52 mm)
BA: 235/40 R18 95 V XL M+S
i2 BA: 8.0 J x 18 H2
Wheel offset: 1.89 in (48 mm)
CLA 45 AMG 4MATIC
Summer tires
R 18
Tires Wheels
BA: 235/40 ZR18 95 Y XL
2 BA: 8.0 J x 18 H2
Wheel offset: 1.89 in (48 mm)
R 19
Tires Wheels
BA: 235/35 ZR19 91 Y XL
2, 4 BA: 8.0 J x 19 H2
Wheel offset: 1.89 in (48 mm)
Winter tires
R 18
Tires Wheels
BA: 215/45 R18 93 V XL M+Si BA: 7.5 J x 18 H2
Wheel offset: 1.67 in (42.5 mm)
BA: 235/40 R18 95 V XL M+S
i2 BA: 8.0 J x 18 H2
Wheel offset: 1.89 in (48 mm)
2
Use of snow chains not permitted. Observe the notes in the "Snow chains" section.
4 Observe the notes on "Large wheels" in the "Wheel/tire combinations" section. 350
Wheel and tire combinationsWheels and tires