2015 MERCEDES-BENZ B-CLASS SPORTS snow chains

Only winter tires bearing theisnowflake
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 havemounted.
When you have mounted the M+S tires:
X Check the tire pressures ( Ypage 305).
X Restart the tire pressure loss warning sys-
tem (Canada). ( Ypage 309)
Information about driving with an emergency spare wheel ( Ypage 329).
Snow chains
GWARNING
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. 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 ( Ypage 326).
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 notsnow-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 ( Ypage 175).
You may wish to deactivate ESP ®
when pull-
ing away with snow chains installed( Y page 64). You can thereby allow the wheels
to spin in a controlled manner, achieving an
increased driving force (cutting action).
Information about driving with an emergency spare wheel ( Ypage 329).
Tire pressure
Tire pressure specifications
Important safety notes
GWARNING
Underinflated or overinflated tires pose the
following risks: R the tires may burst, especially as the load
and vehicle speed increase.
R the tires may wear excessively and/or
unevenly, which may greatly impair tiretraction.
R the driving characteristics, as well as steer-
ing and braking, may be greatly impaired.
There is a risk of an accident.
Tire pressure305
Wheels and tires
Z

Checking tire pressures manually
To determine and set the correct tire pres-
sure, proceed as follows: XRemove 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 ( Ypage 305).
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.
menu, by theRunFlatIndicatorActive
Press 'OK' to Restartmessage. Further
information on displaying this message can
be found under "Restarting the tire pressure
loss warning system" ( Ypage 309).
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 ( Ypage 305).
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 bythe 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
X Before restarting, make sure that the tire
pressures are set properly on all four tires
for the respective operating conditions.
The recommended tire pressure can be
found on the Tire and Loading Information
placard on the B-pillar. Additionally, a tire
pressure table is attached to the fuel filler
flap. The tire pressure loss warning system
can only give reliable warnings if you have
Tire pressure309
Wheels and tires
Z

Tires
B 250
Summer tires
R 18
TiresWheels
BA: 225/4 0 R18 92 W XL 2, 3BA: 7.5 J x 18 H2
Wheel offset: 2.05 in (52 mm)
All-weather tires
R 17
TiresWheels
BA: 225/45 R17 91 H M+S
2, 3BA: 7.5 J x 17 H2
Wheel offset: 2.07 in (52.5 mm)
Winter tires
R 17
TiresWheels
BA: 205/50 R17 93 H XL M+S
i2BA: 6.5 J x 17 H2
Wheel offset: 1.93 in (49 mm)
R 18
TiresWheels
BA: 225/40 R18 92 H XL M+S
i3BA: 7.5 J x 18 H2
Wheel offset: 2.05 in (52 mm)
B 250 4MATIC
Summer tires
R 18
TiresWheels
BA: 225/40 R18 92 W XL 2, 3BA: 7.5 J x 18 H2
Wheel offset: 2.05 in (52 mm)
2
Also available as MOExtended tires.
3 Use of snow chains not permitted. Observe the notes in the "Snow chains" section.
328Wheel and tire combinations
Wheels and tires

All-weather tires
R 17
TiresWheels
BA: 225/45 R17 91 H M+S2, 3BA: 7.5 J x 17 H2
Wheel offset: 2.07 in (52.5 mm)
Winter tires
R 17
TiresWheels
BA: 205/50 R17 93 H XL M+S
i2BA: 6.5 J x 17 H2
Wheel offset: 1.93 in (49 mm)
R 18
TiresWheels
BA: 225/40 R18 92 H XL M+S
i3BA: 7.5 J x 18 H2
Wheel offset: 2.05 in (52 mm)
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:
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
Apart from some country-specific variants,
the vehicles are not equipped with an emer-
gency spare wheel. Emergency spare wheels
are specific to the vehicle. For more informa- tion on which emergency spare wheels are
approved for your vehicle, consult a qualified specialist workshop.
2 Also available as MOExtended tires.
3 Use of snow chains not permitted. Observe the notes in the "Snow chains" section.
Emergency spare wheel329
Wheels and tires
Z