
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 174, 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 permitted 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 174, 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
640i Gran CoupeTire sizePressure specifications
in bar/PSISpecifications in
bar/PSI with cold
tires245/45 R 18 100 V
M+S XL A/S RSC
245/40 R 19 98 V M
+S XL A/S RSC
245/45 R 18 100 V
M+S XL RSC2.3 / 332.5 / 36Front: 245/45 R 18
96 Y RSC
Rear:
275/40 R 18 99 Y
RSC2.3 / 33
--
2.3 / 33Front: 245/40 R 19
94 Y RSC
Rear:
275/35 R 19 96 Y
RSC2.3 / 33
--
2.5 / 36Front: 245/35 R 20
95 Y XL RSC
Rear:
275/30 R 20 97 Y
XL RSC2.5 / 36
--
2.8 / 41Compact wheel:
T 135/90 R 17 104
MSpeed up to a max. of
50 mph / 80 km/h
4.2 / 60650i Gran CoupeTire sizePressure specifications
in bar/PSISpecifications in
bar/PSI with cold
tires245/45 R 18 100 V
M+S XL A/S RSC
245/45 R 18 100 V
M+S XL RSC2.5 / 362.5 / 36245/40 R 19 98 V M
+S XL A/S RSC2.5 / 362.6 / 38Front: 245/45 R 18
96 Y RSC
Rear:
275/40 R 18 99 Y
RSC2.5 / 36
--
2.5 / 36Front: 245/40 R 19
94 Y RSC
Rear:
275/35 R 19 96 Y
RSC2.5 / 36
--
2.5 / 36Front: 245/35 R 20
95 Y XL RSC
Rear:
275/30 R 20 97 Y XL
RSC2.7 / 39
--
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650i Gran CoupeTire sizePressure specifications
in bar/PSISpecifications in
bar/PSI with cold
tires245/45 R 18 100 V
M+S XL A/S RSC
245/45 R 18 100 V
M+S XL RSC2.5 / 362.5 / 36245/40 R 19 98 V M
+S XL A/S RSC2.5 / 362.6 / 38Front: 245/45 R 18
96 Y RSC
Rear:
275/40 R 18 99 Y
RSC2.5 / 36
--
2.5 / 36Front: 245/40 R 19
94 Y RSC
Rear:
275/35 R 19 96 Y
RSC2.5 / 36
--
2.5 / 36Front: 245/35 R 20
95 Y XL RSC
Rear:
275/30 R 20 97 Y XL
RSC2.7 / 39
--
2.9 /42
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.◀
Tire inflation pressure values over
100 mph/160 km/h
640i Gran Coupe
Without high-speed tuning featureTire sizePressure specifications
in bar/PSISpecifications in
bar/PSI with cold
tires245/45 R 18 100 V
M+S XL A/S RSC
245/40 R 19 98 V M
+S XL A/S RSC
245/45 R 18 100 V
M+S XL RSC2.3 / 332.8 / 41Front: 245/45 R 18
96 Y RSC
Rear:
275/40 R 18 99 Y
RSC2.3 / 33
--
2.3 / 33Front: 245/40 R 19
94 Y RSC
Rear:
275/35 R 19 96 Y
RSC2.3 / 33
--
2.5 / 36Front: 245/35 R 20
95 Y XL RSC
Rear:
275/30 R 20 97 Y
XL RSC2.5 / 36
--
2.8 / 41Compact wheel:
T 135/90 R 17 104
MSpeed up to a max. of
50 mph / 80 km/h
4.2 / 60
With high-speed tuning feature
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New tires
Due to technical factors associated with their
manufacture, tires do not achieve their full trac‐
tion potential until after an initial breaking-in pe‐
riod.
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
The manufacturer of your vehicle recommends
winter tires for winter roads or at temperatures
below +45 ℉/+7 ℃.
Although so-called all-season M+S tires do 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 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
If you are already using run-flat tires, for your
own safety you should replace them only with
the same kind. No spare tire is available in thecase 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 99.
Continued driving with a damaged tire, refer to
page 96.
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F
Failure message, refer to Check Control 74
False alarm, refer to Uninten‐ tional alarm 41
Fan, refer to Air flow 141
Fault displays, refer to Check Control 74
Filler neck for engine oil 187
Fine wood, care 205
First aid kit 199
Fitting for towing, refer to Tow fitting 202
Flat tire, changing wheels 195
Flat Tire Monitor FTM 97
Flat tire, Tire Pressure Monitor TPM 94
Flat tire, warning lamp 95, 98
Flooding 159
Floor carpet, care 205
Floor mats, care 205
Fold-out position, windshield wipers 66
Foot brake 159
For the headliner, refer to All around the interior rearview
mirror 15
Front airbags 91
Front center armrest 152
Front fog lamps 89
Front lamps 0
Front passenger airbags, au‐ tomatic deactivation 93
Front passenger airbags, indi‐ cator lamp 93
Front seats 45
Front turn signals, refer to Light-emitting diodes,
LEDs 193
FTM Flat Tire Monitor 97
Fuel cap 170
Fuel consumption, current 78
Fuel consumption, refer to Average fuel consump‐
tion 82 Fuel filler flap 170
Fuel gauge 77
Fuel quality 172
Fuel, tank capacity 212
Fuse 197
G
Garage door opener, refer to Integrated universal remote
control 145
Gasoline 172
Gasoline quality 172
Gear change, automatic trans‐ mission 68
General driving notes 158
Glass sunroof, powered with tilt function 43
Glove compartment 151
Gross vehicle weight, ap‐ proved 211
H
Handbrake, refer to Parking brake 62
Hand-held transmitter, alter‐ nating code 146
Hazard warning flashers 198
HDC Hill Descent Control 112
Head airbags 91
Headlamp control, auto‐ matic 87
Headlamp courtesy delay fea‐ ture 87
Headlamp courtesy delay fea‐ ture via remote control 35
Headlamp flasher 65
Headlamp glass 193
Headlamps 0
Headlamps, care 204
Headlamp washer system 65
Head restraints 45
Head restraints, front 50
Head-Up Display 138
Head-up Display, care 206 Heavy cargo, stowing 162
Height, seats 45
Height, vehicle 210
High-beam Assistant 88
High beams 65
High beams/low beams, refer to High-beam Assistant 88
Hill Descent Control HDC 112
Hills 160
Hill start assistant, refer to Drive-off assistant 110
Hints 6
Holder for beverages 153
Homepage 6
Hood 184
Horn 12
Hotel function, trunk lid 38
Hot exhaust system 158
HUD Head-Up Display 138
Hydroplaning 159
I
Ice warning, refer to External temperature warning 77
Icy roads, refer to External temperature warning 77
Identification marks, tires 178
Identification number, refer to Important features in the en‐
gine compartment 184
iDrive 16
Ignition key, refer to Remote control 30
Ignition off 58
Ignition on 58
Indication of a flat tire 95, 98
Individual air distribution 141
Individual settings, refer to Personal Profile 31
Inflation pressure, tires 173
Inflation pressure warning FTM, tires 97
Info display, refer to Com‐ puter 81 Seite 225Everything from A to ZReference225
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Speed limit in the com‐puter 82
Split screen 20
SPORT+ program, Dynamic Driving Control 115
Sport automatic transmis‐ sion 69
SPORT program, Dynamic Driving Control 115
Sport program, transmis‐ sion 68
Stability control systems 110
Start/stop, automatic func‐ tion 60
Start/Stop button 58
Start function during malfunc‐ tion 31
Starting the engine 59
Status display, tires 94
Status information, iDrive 19
Status of Owner's Manual 6
Steering, Integral Active Steering 113
Steering wheel, adjusting 53
Steering wheel heating 53
Steering wheel memory 51
Steptronic, automatic trans‐ mission 67
Stopping the engine 59
Storage compartments 151
Storage compartments, loca‐ tions 151
Storage, tires 181
Storing the vehicle 206
Summer tires, tread 179
Supplementary text mes‐ sage 76
Surround View 128
Suspension settings 114
Switch for Dynamic Driving Control 114
Switch-on times, parked-car ventilation 144
Switch, refer to Cockpit 12
Symbols 6 T
Tachometer 77
Tail and brake lamps 194
Tailgate 37
Tailgate via remote control 35
Tail lamps 194
Tail lamps, bulb replace‐ ment 194
Technical changes, refer to Safety 7
Technical data 210
Telephone, see user's manual for Navigation, Entertain‐
ment and Communication
Temperature, automatic cli‐ mate control 141
Temperature display, external temperature 77
Temperature, engine oil 77
Tempomat, refer to Active Cruise Control 118
Terminal, jump-starting 200
Text message, supplemen‐ tary 76
Theft alarm system, refer to Alarm system 40
Theft protection, lug bolts 196
Theft protection, refer to Cen‐ tral locking system 33
Thermal camera, refer to Night Vision 103
Thigh support 46
Through-loading system 148
Tilt alarm sensor 41
Tilt glass roof 43
Tilt, seats 45
Time of arrival 82
Tire damage 179
Tire identification marks 178
Tire inflation pressure 173
Tire inflation pressure monitor, refer to FTM 97
Tire Pressure Monitor TPM 94 Tires, changing 180
Tires, everything on wheels and tires 173
Tires, run-flat tires 181
Tire tread 179
Tone, see user's manual for Navigation, Entertainment
and Communication
Tools 192
Top View 131
Total vehicle weight 211
Tow fitting 202
Towing 201
Tow-starting 201
TPM Tire Pressure Moni‐ tor 94
Traction control 111
TRACTION program, Dynamic Driving Control 115
Transmission, automatic 67
Transporting children safely 54
Tread, tires 179
Trip computer 83
Triple turn signal activa‐ tion 64
Trip odometer 77
Trunk lid 37
Trunk lid, emergency unlock‐ ing 38
Trunk lid, hotel function 38
Trunk lid via remote con‐ trol 35
Turning circle 211
Turning circle lines, backup camera 130
Turn signals, operation 64
Turn signals, rear, bulb re‐ placement 194
U
Unintentional alarm 41
Units of measure 85
Universal remote control 145 Seite 229Everything from A to ZReference229
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