
Wheels and tiresVehicle equipment
All standard, country-specific and optional
equipment that is offered in the model series is
described in this chapter. Therefore, equipment
is also described that is not available in a vehicle,
e. g., because of the selected optional equip‐
ment or country variant. This also applies for
safety-related functions and systems.
Tire inflation pressure
Safety information
The tire characteristics and tire inflation pres‐
sure influence the following:▷The service life of the tires.▷Road safety.▷Driving comfort.
Checking the pressure
Only check the tire inflation pressure when the
tires are cold. This means after driving no more
than 1.25 miles/2 km or when the vehicle has
been parked for at least 2 hours. When the tires
are warm, the tire inflation pressure is higher.
Check the tire inflation pressure regularly
Regularly check the tire inflation pressure
and correct it as needed: at least twice a month
and before a long trip. If you fail to observe this
precaution, you may be driving on tires with in‐
correct tire pressures, a condition that may not
only compromise your vehicle's driving stability,
but also lead to tire damage and the risk of an
accident.◀
After correcting the tire inflation pressure:
▷Reinitialize the Flat Tire Monitor.▷Reinitialize the Tire Pressure Monitor.Pressure specifications
The tire inflation pressure table, refer to
page 222, contains all pressure specifications
for the specified tire sizes at the ambient tem‐
perature. Pressure specifications apply to ap‐
proved tire sizes and recommended tire brands.
This information can be obtained from your
service center.
To identify the correct tire inflation pressure,
please note the following:▷Tire sizes of your vehicle.▷Maximum allowable driving speed.
Tire inflation pressures up to 100 mph/
160 km/h
For speeds of up to 100 mph/160 km/h and for
optimum driving comfort, note the pressure val‐
ues in the tire inflation pressure table, refer to
page 222, and adjust as necessary.
These pressure values can also be found on the
tire inflation pressure label on the driver's door
pillar.
Maximum permissible speed
Do not exceed 100 mph/160 km/h; other‐
wise, tire damage and accidents may result.◀
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Tire inflation pressure values up to
100 mph/160 km/h
X3 28iATire sizePressure specifica‐
tions in bar/PSISpecifications in bar/
PSI with cold tires245/55 R 17 102 H M
+S A/S RSC
245/55 R 17 102 H M
+S RSC2.2 / 322.2 / 32225/60 R 17 99 H M
+S A/S RSC
245/50 R 18 100 V M
+S A/S RSC
225/60 R 17 99 H M
+S RSC
245/50 R 18 100 H M
+S RSC2.2 / 322.4 / 35245/45 R 19 102 V M
+S XL A/S RSC
245/45 R 19 102 V M
+S RSC2.2 / 322.6 / 38V: 245/45 R 19 98 W
RSC
H: 275/40 R 19 101
W RSC2.2 / 32
--
2.2 / 32V: 245/40 R 20 99 Y
XL RSC
H: 275/35 R 20 102 Y
XL RSC2.2 / 32
--
2.4 / 35Compact wheel:
T 135/80 R 18 104 MSpeed up to a max. of
50 mph / 80 km/h
4.2 / 60X3 35iATire sizePressure specifications
in bar/PSISpecifications in
psi/kilopascal with
cold tires245/50 R 18 100 V
M+S A/S RSC
245/50 R 18 100 V
M+S RSC2.2 / 322.4 / 35245/45 R 19 102 V
M+S XL A/S RSC
245/45 R 19 102 V
M+S RSC2.2 / 322.6 / 38V: 245/45 R 19 98 W
RSC
H: 275/40 R 19 101
W RSC2.2 / 32
--
2.2 / 32V: 245/40 R 20 99 Y
XL RSC
H: 275/35 R 20 102
Y XL RSC2.2 / 32
--
2.4 / 35Compact wheel:
T 135/80 R 18 104
MSpeed up to a max. of
50 mph / 80 km/h
4.2 / 60
Tire inflation pressures at max. speeds
above 100 mph/160 km/h
Speeds above 100 mph/160 km/h
In order to drive at maximum speeds in ex‐
cess of 100 mph/160 km/h, please observe, and,
if necessary, adjust tire pressures for speeds
exceeding 100 mph/160 km/h from the relevant
table on the following pages. Otherwise tire
damage and accidents could occur.◀
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Tire inflation pressure values over
100 mph/160 km/h
X3 28iATire sizePressure specifica‐
tions in bar/PSISpecifications in bar/
PSI with cold tires245/55 R 17 102 H M
+S A/S RSC
245/55 R 17 102 H M
+S RSC2.2 / 322.6 / 38225/60 R 17 99 H M
+S A/S RSC
245/50 R 18 100 V M
+S A/S RSC
225/60 R 17 99 H M
+S RSC
245/50 R 18 100 H M
+S RSC2.4 / 352.8 / 41245/45 R 19 102 V M
+S XL A/S RSC
245/45 R 19 102 V M
+S RSC2.6 / 383.0 / 44V: 245/45 R 19 98 W
RSC
H: 275/40 R 19 101
W RSC2.2 / 32
--
2.6 / 38V: 245/40 R 20 99 Y
XL RSC
H: 275/35 R 20 102 Y
XL RSC2.2 / 32
--
2.6 / 38-Compact wheel
T 135/80 R 18 104 MSpeed up to a max. of
50 mph / 80 km/h
4.2 / 60X3 35iATire sizePressure specifications
in bar/PSISpecifications in
bar/PSI with cold
tires245/50 R 18 100 V
M+S A/S RSC
245/50 R 18 100 V
M+S RSC2.6 / 383.0 / 44245/45 R 19 102 V
M+S XL A/S RSC
245/45 R 19 102 V
M+S RSC2.8 / 413.2 / 46V: 245/45 R 19 98 W
RSC
H: 275/40 R 19 101
W RSC2.4 / 35
--
2.8 / 41V: 245/40 R 20 99 Y
XL RSC
H: 275/35 R 20 102
Y XL RSC2.4 / 35
--
2.8 / 41Compact wheel
T 135/80 R 18 104
MSpeed up to a max. of
50 mph / 80 km/h
4.2 / 60
Tire identification marks
Tire size
255/50 R 19 103 Y
255: nominal width in mm
50: aspect ratio in %
R: radial tire code
19: rim diameter in inches
103: load rating, not for ZR tires
Y: speed rating, before the R on ZR tires
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Maximum speed of winter tires
If the maximum speed of the vehicle is higher
than the permissible speed for the winter tires,
then display a corresponding sign in the field of
vision. You can obtain this sign from the tire spe‐
cialist or from your service center.
Maximum speed for winter tires
Do not exceed the maximum speed for the
winter tires; otherwise, tire damage and acci‐
dents can occur.◀
Run-flat tires
For your own safety, only use run-flat tires. No
spare tire is available in the case of a flat tire. Your
service center will be glad to advise you.
Rotating wheels between axles
The manufacturer of your vehicle advises
against swapping wheels between the front and
rear axles.
This can impair the handling characteristics.
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.Run-flat tires
Label
RSC label on the tire sidewall.
The wheels are composed of special rims and
tires that are self-supporting, to a limited de‐
gree.
The support of the sidewall allows the tire to re‐
main drivable to a restricted degree in the event
of a pressure loss.
Continued driving with a damaged tire, refer to
page 93.
Changing run-flat tires
For your own safety, only use run-flat tires. No
spare tire is available in the case of a flat tire. Your
service center will be glad to advise you.
Snow chains
Fine-link snow chains
Only certain types of fine-link snow chains have
been tested by the manufacturer of your vehicle,
classified as road-safe and recommended.
Consult your service center for more informa‐
tion.
Use
Use only in pairs on the rear wheels, equipped
with the tires of the following size:
▷205/65 R 17.▷225/60 R 17.Seite 227Wheels and tiresMobility227
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Flat tire, Tire Pressure MonitorTPM 88
Flat tire, warning lamp 89, 92
Flooding 129
Floor carpet, care 250
Floor mats, care 250
FM/AM station 158
Fold-out position, windshield wipers 64
Foot brake 129
Front airbags 85
Front fog lamps 83
Front fog lamps, front, bulb re‐ placement 239
Front lamps 237
Front passenger airbags, au‐ tomatic deactivation 87
Front passenger airbags, indi‐ cator lamp 87
FTM Flat Tire Monitor 91
Fuel cap 218
Fuel consumption, current 73
Fuel consumption, refer to Average fuel consump‐
tion 76
Fuel filler flap 218
Fuel gauge 72
Fuel quality 220
Fuel, tank capacity 257
Fuse 242
G
Garage door opener, refer to Integrated universal remote
control 116
Gas station recommenda‐ tion 148
Gear change, automatic trans‐ mission 65
General driving notes 128
Glass sunroof, refer to Panor‐ amic glass sunroof 44
Glove compartment 122
Gong, volume equaliza‐ tion 157 GPS navigation, refer to Navi‐
gation system 138
Gray display of the map 151
Gross vehicle weight, ap‐ proved 256
Gross weight, permissible for trailer towing 256
H
Hand brake, refer to Parking brake 60
Hand-held transmitter, alter‐ nating code 117
Hazard warning flashers 243
HDC Hill Descent Control 95
HD Radio 159
Head airbags 85
Headlamp control, auto‐ matic 81
Headlamp courtesy delay fea‐ ture 81
Headlamp courtesy delay fea‐ ture via remote control 35
Headlamp flasher 62
Headlamp flasher, bulb re‐ placement 238
Headlamp glass 237
Headlamps 237
Headlamps, care 249
Headlamp washer system 62
Headliner 15
Head restraints 46
Head restraints, front 50
Head restraints, rear 51
Head-up Display 107
Head-up Display, care 251
Heavy cargo, stowing 132
Height, vehicle 254
High-beam Assistant 82
High beams 62
High beams/low beams, refer to High-beam Assistant 82
High beams, bulb replace‐ ment 238
Hill Descent Control HDC 95 Hills 130
Hints 6
Holder for beverages 123
Homepage 6
Hood 229
Horn 12
Hot exhaust system 128
House number, entering for navigation 139
Hydroplaning 129
I
Ice warning, refer to External temperature warning 73
Icy roads, refer to External temperature warning 73
Identification marks, tires 223
Identification number, refer to Important in the engine com‐
partment 229
iDrive 16
Ignition key, refer to Remote control 30
Ignition off 58
Ignition on 58
Indication of a flat tire 89, 92
Individual air distribu‐ tion 109, 112
Individual settings, refer to Personal Profile 31
Inflation pressure, tires 221
Inflation pressure warning, tires 91
Info display, refer to Com‐ puter 75
Information on the navigation data 152
Initializing, Flat Tire Monitor FTM 92
Initializing, Tire Pressure Mon‐ itor TPM 89
Instrument cluster 68
Instrument cluster, electronic displays 69
Instrument lighting 84 Seite 271Everything from A to ZReference271
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Spoken instructions, naviga‐tion 148
SPORT+ - program, Dynamic Driving Control 97
Sport automatic transmis‐ sion 67
SPORT - program, dynamic driving control 97
Sport program, transmis‐ sion 66
Sport steering, variable 97
Stability control systems 94
Start/Stop button 58
Start function during malfunc‐ tion 31
Starting aid 244
Starting the engine 59
State/province, selecting for navigation 138
Stations, stored 164
Station, storing 158
Status display, tires 88
Status information, iDrive 19
Status of Owner's Manual 6
Steering wheel, adjusting 54
Steering wheel heating 54
Steptronic, automatic trans‐ mission 65
Stopping the engine 59
Storage compartments 122
Storage compartments, loca‐ tions 122
Storage, tires 227
Storing the vehicle 251
Street, entering for naviga‐ tion 139
Summer tires, tread 225
Supplementary text mes‐ sages 71
Suspension settings 97
Switch for Dynamic Driving Control 97
Switch-on times, parked-car ventilation 115
Switch, refer to Cockpit 12
Symbols 6 T
Tachometer 72
Tailgate 37
Tailgate, automatic 38
Tailgate via remote control 35
Tail lamps 240
Tasks 204
Technical changes, refer to Safety 6
Technical data 254
TeleService 210
Temperature, automatic cli‐ mate control 110, 112
Temperature display, external temperature 73
Temperature, engine oil 72
Terminal, starting aid 245
Text messages 201
Text messages, supplemen‐ tary 71
Theft alarm system, refer to Alarm system 41
Theft protection, refer to Cen‐ tral locking system 33
Thigh support 48
Tilt alarm sensor 42
Time of arrival 76
Tire damage 225
Tire identification marks 223
Tire inflation pressure 221
Tire inflation pressure monitor, refer to FTM 91
Tire Pressure Monitor TPM 88
Tires, changing 226
Tires, everything on wheels and tires 221
Tires, run-flat tires 227
Tire tread 225
Toll roads, route 146
Tone 156
Tools 236
Top View 106
Torque, engine 255
Total vehicle weight 256 Tow fitting 247
Towing 246
Town/city, navigation 139
Tow-starting 246
TPM Tire Pressure Moni‐ tor 88
Traction control 95
TRACTION program, Dynamic Driving Control 95
Traffic bulletins, naviga‐ tion 150
Transmission, automatic 65
Transporting children safely 55
Tread, tires 225
Treble, tone 156
Trip computer 77
Triple turn signal activa‐ tion 62
Trip odometer 72
Trunk lid 37
Turning circle 255
Turning circle lines, backup camera 104
Turn signals, operation 62
U
Unintentional alarm 42
Units of measure 79
Universal remote control 116
Unlock button, automatic transmission 66
Unlocking/locking from in‐ side 37
Unlocking/locking via door lock 36
Unlocking/locking with remote control 34
Updates made after the edito‐ rial deadline 6
Updating software 185
Upholstery care 249
USB audio interface 178
USB interface 123 Seite 275Everything from A to ZReference275
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