Maximum permissible speed
Do not exceed 100 mph/160 km/h; other‐
wise, tire damage and accidents may result.◀
Tire inflation pressure values
i3Tire sizePressure specifications
in bar/PSISpecifications in
bar/PSI with cold
tires155/70 R 19 84 Q
M+S A/S Std
155/70 R 19 84 Q
M+S Std2.3 / 332.8 / 41Front: 155/70 R
19 84 Q M+S A/S
Std
Rear: 175/60 R 19
86 Q M+S A/S Std2.3 / 33
--
2.8 / 41Front: 155/60 R
20 80 Q Std
Rear: 175/55 R 20
85 Q Std2.3 / 33
--
2.8 / 41
Tire identification marks
Tire size 245/45 R 18 96 Y
245: nominal width in mm
45: aspect ratio in %
R: radial tire code
18: rim diameter in inches
96: load rating, not for ZR tires
Y: speed rating, before the R on ZR tires
Speed letter
Q = up to 100 mph, 160 km/h
R = up to 106 mph, 170 km/h
S = up to 112 mph, 180 km/h
T = up to 118 mph, 190 km/h
H = up to 131 mph, 210 km/h
V = up to 150 mph, 240 km/h
W = up to 167 mph, 270 km/h
Y = up to 186 mph, 300 km/h
Tire Identification NumberDOT code: DOT xxxx xxx 4314
xxxx: manufacturer code for the tire brand
xxx: tire size and tire design
4314: tire age
Tires with DOT codes meet the guidelines of
the U.S. Department of Transportation.
Tire age DOT … 4314: the tire was manufactured in the
43th week of 2014.
Recommendation
Regardless of wear and tear, replace tires at
least every 6 years.
Uniform Tire Quality Grading
Quality grades can be found where applicable
on the tire sidewall between tread shoulder
and maximum section width.
For example: Treadwear 200; Traction AA;
Temperature A
DOT Quality Grades Treadwear
Traction AA A B C
Temperature A B C
All passenger car tires must conform to Fed‐
eral Safety Requirements in addition to these
grades.Seite 169Wheels and tiresMobility171
TreadwearThe treadwear grade is a comparative rating
based on the wear rate of the tire when tested
under controlled conditions on a specified gov‐
ernment test course. For example, a tire graded 150 would wear one and one-half, 1 g,
times as well on the government course as a
tire graded 100. The relative performance of
tires depends upon the actual conditions of
their use, however, and may depart signifi‐
cantly from the norm due to variations in driv‐
ing habits, service practices and differences in
road characteristics and climate.
Traction
The traction grades, from highest to lowest,
are AA, A, B, and C.
Those grades represent the tire's ability to
stop on wet pavement as measured under
controlled conditions on specified government
test surfaces of asphalt and concrete. A tire
marked C may have poor traction performance.
The traction grade assigned to this tire is
based on straight-ahead braking traction tests,
and does not include acceleration, cornering,
hydroplaning, or peak traction characteristics.
Temperature
The temperature grades are A, the highest, B,
and C, representing the tire's resistance to the
generation of heat and its ability to dissipate
heat when tested under controlled conditions
on a specified indoor laboratory test wheel.
Sustained high temperature can cause the ma‐
terial of the tire to degenerate and reduce tire
life, and excessive temperature can lead to
sudden tire failure. The grade C corresponds
to a level of performance which all passenger
car tires must meet under the Federal Motor
Vehicle Safety Standard No. 109. Grades Band
A represent higher levels of performance on
the laboratory test wheel than the minimum re‐
quired by law.Temperature grade for this tire
The temperature grade for this tire is es‐
tablished for a tire that is properly inflated and
not overloaded. Excessive speed, underinfla‐
tion, or excessive loading, either separately or
in combination, can cause heat buildup and
possible tire failure.
If necessary, have the vehicle towed.◀
M+S
Winter and all-season tires with better cold
weather performance than summer tires.
Tire tread Summer tires
Do not drive with a tire tread depth of less than
0.12 in/3 mm.
There is an increased danger of hydroplaning if
the tire tread depth is less than 0.12 in/3 mm.
Winter tires
Do not drive with a tire tread depth of less than
0.16 in/4 mm.
Below a tread depth of 0.16 in/4 mm, tires are
less suitable for winter operation.
Minimum tread depth
Wear indicators are distributed around the
tire's circumference and have the legally re‐
quired minimum height of 0.063 in/1.6 mm.
They are marked on the side of the tire with
TWI, Tread Wear Indicator.
Seite 170MobilityWheels and tires172
Recommended tire brands
For each tire size, the manufacturer of your ve‐
hicle recommends certain tire brands. These
can be identified by a star on the tire sidewall.
With proper use, these tires meet the highest
standards for safety and handling.
New tires Tire traction is not optimal due to manufactur‐
ing circumstances when tires are brand-new;
they achieve their full traction potential after a
break-in time.
Drive conservatively for the first
200 miles/300 km.
Retreaded tires
The manufacturer of your vehicle does not rec‐
ommend the use of retreaded tires.
Retreaded tires
Possibly substantial variations in the de‐
sign and age of the tire casing structures can
limit service life and have a negative impact on
road safety.◀
Winter tires
Winter tires are recommended for operating on
winter roads.
Although so-called all-season M+S tires pro‐
vide better winter traction than summer tires,
they do not provide the same level of perform‐
ance as winter tires.
Maximum speed of winter tires
If the maximum speed of the vehicle is higher
than the permissible speed for the winter tires,
then a respective symbol is displayed in your
field of vision. You can obtain this sign from the
tire specialist or from your service center.
Maximum speed for winter tires
Do not exceed the maximum speed for
the respective winter tires; otherwise, tire dam‐
age and accidents can occur.◀
Rotating wheels between axles Different wear patterns can occur on the front
and rear axles depending on individual driving
conditions. The tires can be rotated between
the axles to achieve even wear. Your service
center will be glad to advise you. After rotating,
check the tire pressure and correct if needed.
Rotating the tires is not permissible on vehi‐
cles with different tire sizes on the front and
rear axles, i.e. when using different types of
tires.
Storage
Store wheels and tires in a cool, dry place with
as little exposure to light as possible.
Always protect tires against all contact with oil,
grease and fuels.
Do not exceed the maximum tire inflation pres‐
sure indicated on the side wall of the tire.
Mobility System
The concept With the Mobility System, minor tire damage
can be sealed quickly to enable continued
travel. To accomplish this, sealant is pumped
into the tires, which seals the damage from the inside.
The compressor can be used to check the tire
inflation pressure.Seite 172MobilityWheels and tires174
Hints▷Follow the instructions on using the Mobi‐
lity System found on the compressor and
sealant container.▷Use of the Mobility System may be ineffec‐
tive if the tire puncture measures approx.
1/8 in/4 mm or more.▷Contact the nearest service center if the
tire cannot be made drivable.▷If possible, do not remove foreign bodies
that have penetrated the tire.▷Pull the speed limit sticker off the sealant
container and apply it to the steering
wheel.▷The use of a sealant can damage the TPM
wheel electronics. In this case, have the
electronics checked at the next opportu‐
nity and have them replaced if needed.
Storage
The mobility system is located in the storage
compartment under the hood.
Sealing container
▷Sealing container, arrow 1.▷Filling hose, arrow 2.
Observe use-by date on the sealant container.
Compressor1On/off reel2Holder for bottle3Reduce inflation pressure4Inflation pressure dial5Compressor6Connector/cable for socket7Connection hose — stowed in the bottom
of the compressor
Filling the tire with sealant
1.Shake the sealing container.Seite 173Wheels and tiresMobility175
2.Take the connection hose completely out
of the compressor housing. Do not kink the
hose.3.Attach the connection hose to the connec‐
tor of the sealing container, ensuring that it
engages audibly.4.Slide the sealing container upright into the
holder on the compressor housing, ensur‐
ing that it engages audibly.5.Screw the connection hose onto the tire
valve of the defective wheel.6.With the compressor switched off, insert
the plug into a power socket inside the ve‐
hicle.7.With operating readiness or drive readi‐
ness switched on, reel on the compressor.
Switch off the compressor after 10 mi‐
nutes
Do not allow the compressor to run longer than
10 minutes; otherwise, the device will overheat
and may be damaged.◀
Let the compressor run for approx. 3 to 8 mi‐
nutes to fill the tire with sealant and achieve a
tire inflation pressure of approx. 2.5 bar.
Seite 174MobilityWheels and tires176
While the tire is being filled with sealant, the
tire inflation pressure may sporadically reach
approx. 5 bar. Do not reel off the compressor at
this point.
If a tire inflation pressure of 2 bar is not
reached:1.Switch off the compressor.2.Unscrew the filling hose from the wheel.3.Drive 33 ft/10 m forward and back to dis‐
tribute the sealant in the tire.4.Inflate the tire again using the compressor.
If a tire inflation pressure of 2 bar cannot be
reached, contact your service center.
Stowing the Mobility System
1.Remove the connection hose of the seal‐
ant container from the wheel.2.Remove the connection hose from the
sealant container.3.Wrap the empty sealant container and con‐
nection hose in suitable material to avoid
dirtying the cargo area.4.Stow the Mobility System back in the vehi‐
cle.
Distributing the sealant
Immediately drive approx. 5 miles/10 km to en‐
sure that the sealant is evenly distributed in the
tire.
Do not exceed a speed of 50 mph/80 km/h.
If possible, do not drive at speeds less than
12 mph/20 km/h.
To correct the tire inflation pressure1.Stop at a suitable location.2.Screw the connection hose onto the tire
valve stem.3.Attach the connection hose directly to the
compressor.4.Insert the connector into a power socket
inside the vehicle.5.Correct the tire inflation pressure to
2.5 bar.▷Increase pressure: with operating read‐
iness or drive readiness switched on,
reel on the compressor.▷To reduce the pressure: press the but‐
ton on the compressor.Seite 175Wheels and tiresMobility177
Continuing the tripDo not exceed the maximum permissible
speed of 50 mph/80 km/h.
Reinitialize the Flat Tire Monitor.
Reinitialize the Tire Pressure Monitor.
Replace the defective tire and the sealant con‐
tainer of the Mobility System as soon as possi‐
ble.
Snow chains Fine-link snow chains
Only certain types of fine-link snow chains
have been tested by the manufacturer of the
vehicle, classified as road-safe and approved.
Information about the approved snow chains
are available from the service center.
Use
Use only in pairs on the rear wheels, equipped
with the tires of the following size:▷155/70 R 19
Follow the snow chain manufacturer's instruc‐
tions.
Make sure that the snow chains are always
sufficiently tight. Retighten as needed accord‐
ing to the chain manufacturer's instructions.
Do not initialize the Flat Tire Monitor after
mounting snow chains, as doing so may result
in incorrect readings.
Do not initialize the Tire Pressure Monitor after
mounting snow chains, as doing so may result
in incorrect readings.
When driving with snow chains, briefly activate
Dynamic Traction Control if needed.
Maximum speed with snow chains Do not exceed a speed of 30 mph/50 km/hwhen using snow chains.
Seite 176MobilityWheels and tires178
False alarm, refer to Uninten‐tional alarm 47
Fan, refer to Air flow 128, 131
Fine wood, care 200
First aid kit 194
Fitting for towing, see tow fit‐ ting 196
Flat tire, changing wheels 191
Flat Tire Monitor FTM 98
Flat tire, Tire Pressure Moni‐ tor TPM 95
Flat tire, warning lamp 96, 98
Flooding 146
Floor carpet, care 201
Floor mats, care 201
Fold-out position, wiper 72
Foot brake 146
Front airbags 92
Front-end collision warning with City Braking func‐
tion 100
Front lights 188
front-seat passenger airbags, automatic deactivation 94
Front-seat passenger airbags, indicator lamp 94
FTM Flat Tire Monitor 98
Fuel 168
Fuel consumption, current 86
Fuel consumption, refer to Average fuel consump‐
tion 86
Fuel filler flap 165
Fuel gauge, Range Ex‐ tender 81
Fuel lid 165
Fuel quality 168
Fuel recommendation 168
Fuel, tank lidacity 205
Fuse 192
G
Gasoline 168 General driving notes 145
Glare shield 134
Glass sunroof, powered 49
Glove compartment 138
GPS location, vehicle posi‐ tion 88
Gross vehicle weight, ap‐ proved 205
H
Halogen headlights, bulb re‐ placement 0
Handbrake, refer to parking brake 68
Hazard warning flashers 193
Head airbags 92
Headlight control, auto‐ matic 90
Headlight courtesy delay fea‐ ture 89
Headlight courtesy delay fea‐ ture, remote control 46
Headlight courtesy delay fea‐ ture via remote control 40
Headlight flasher 70
Headlight glass 188
Headlights 188
Headlights, care 199
Head restraints 51
Head restraints, front 54
Head restraints, rear 54
Heavy cargo, stowing 149
Height, vehicle 204
High beams 70
High beams, bulb replace‐ ment 189
High-voltage battery, charg‐ ing state indicator 76
High-voltage battery, dis‐ charge 145
High-voltage battery, heated 67
High-voltage battery, heavily discharged 67 High-voltage system, auto‐matic deactivation 196
High-voltage system, contact with water 196
High-voltage system, dis‐ plays 75
High-voltage system, safety 196
Hills 146
Hill start assistant, refer to Drive-off assistant 108
Hints 6
Holder for beverages 139
Hold function 69
Hood 42
Hood via remote control 40
Horn 14
Hot exhaust system 145
Hydroplaning 146
I Ice warning, see External temperature warning 81
Icy roads, see External tem‐ perature warning 81
Identification marks, tires 171
Identification number, see ve‐ hicle identification num‐
ber 10
iDrive 18
Ignition key, refer to Remote control 36
Illuminant replacement 187
Important under the hood 179
Increase range 150
Increase range with Range Extender 67
Indication of a flat tire 96, 98
Indicator and alarm lamps, see Check Control 77
Indicator lamp, see Check Control 77
Individual air distribu‐ tion 128, 130 Seite 209Everything from A to ZReference211