Saving fuelVehicle equipmentAll standard, country-specific and optional
equipment that is offered in the model series is
described in this chapter. Therefore, equip‐
ment is also described that is not available in a
vehicle, e. g., because of the selected optional
equipment or country variant. This also applies
for safety-related functions and systems.
General information Your vehicle contains advanced technology for
the reduction of fuel consumption and emis‐
sions.
Fuel consumption depends on a number of dif‐
ferent factors.
The implementation of certain measures, driv‐
ing style and regular maintenance can have an
influence on fuel consumption and on the envi‐
ronmental impact.
Remove unnecessary cargoAdditional weight increases fuel consumption.
Remove attached parts
following use
Attached parts on the vehicle impair the aero‐
dynamics and increase the fuel consumption.
Close the windows and glass
sunroof
Driving with the glass sunroof and windows
open results in increased air resistance and
raises fuel consumption.Tires
General information
Tires can affect fuel consumption values in
various ways, for instance fuel consumption
can be influenced by the size of the tires.
Check the tire inflation pressure
regularly
Check and, if necessary, correct the tire infla‐
tion pressure at least twice a month and before
starting on a long trip.
Low tire inflation pressure increases rolling re‐
sistance and thus raises fuel consumption and
tire wear.
Drive away without delay
Do not wait for the engine to warm-up while
the vehicle remains stationary. Start driving
right away, but at moderate engine speeds.
This is the fastest way for the cold engine to
reach its operating temperature.
Look well ahead when
driving
Avoid unnecessary acceleration and braking.
By maintaining a suitable distance to the vehi‐
cle driving ahead of you.
Driving smoothly and looking ahead reduces
fuel consumption.
Use coasting conditions When approaching a red light, take your foot
off the accelerator and let the vehicle coast to
a halt.Seite 179Saving fuelDriving tips179
Online Edition for Part no. 01 40 2 909 877 - VI/13
Wheels and tiresVehicle equipment
All standard, country-specific and optional
equipment that is offered in the model series is
described in this chapter. Therefore, equip‐
ment is also described that is not available in a
vehicle, e. g., because of the selected optional
equipment 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 pres‐
sure, and correct it as needed: at least twice a
month and before a long trip. If you fail to ob‐
serve this precaution, you may be driving on
tires with incorrect 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 192, 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
values in the tire inflation pressure table, refer
to page 192, 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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Online Edition for Part no. 01 40 2 909 877 - VI/13
Tire inflation pressure values up to
100 mph/160 km/h
640i Gran Coupe
Tire sizePressure specifica‐
tions in bar/PSI
Specifications in
bar/PSI with cold
tires
245/45 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 RSC
2.3 / 332.5 / 36Front: 245/45 R 18
96 Y RSC
Rear:
275/40 R 18 99 Y
RSC
2.3 / 33
-
-
2.3 / 33
Front: 245/40 R 19
94 Y RSC
Rear:
275/35 R 19 96 Y
RSC
2.3 / 33
-
-
2.5 / 36
Front: 245/35 R 20
95 Y XL RSC
Rear:
275/30 R 20 97 Y
XL RSC
2.5 / 36
-
-
2.8 / 41
Compact wheel:
T 135/90 R 17 104
M
Speed up to a max. of
50 mph / 80 km/h
4.2 / 60
640i xDrive Gran CoupeTire sizePressure specifica‐
tions in bar/PSI
Specifications in
bar/PSI with cold
tires
245/45 R 18 100 V
M+S XL A/S RSC
245/45 R 18 100 V
M+S XL RSC
2.3 / 332.5 / 36245/40 R 19 98 V M
+S XL A/S RSC
2.3 / 332.6 / 38Front: 245/45 R 18
96 Y RSC
Rear:
275/40 R 18 99 Y
RSC
2.3 / 33
-
-
2.3 / 33
Front: 245/40 R 19
94 Y RSC
Rear:
275/35 R 19 96 Y
RSC
2.3 / 33
-
-
2.5 / 36
Front: 245/35 R 20
95 Y XL RSC
Rear:
275/30 R 20 97 Y
XL RSC
2.5 / 36
-
-
2.8 / 41
Compact wheel:
T 135/90 R 17 104
M
Speed up to a max. of
50 mph / 80 km/h
4.2 / 60
Seite 192MobilityWheels and tires192
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2.3 / 332.6 / 38
650i Gran CoupeTire sizePressure specifica‐
tions 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 /42650i xDrive Gran CoupeTire sizePressure specifica‐
tions 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
excess 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. Other‐
wise tire damage and accidents could occur.◀
Seite 193Wheels and tiresMobility193
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Tire inflation pressure values over
100 mph/160 km/h
640i Gran Coupe
Without high-speed tuning featureTire sizePressure specifica‐
tions 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
Tire sizePressure specifications
in bar/PSISpecifications in
bar/PSI with cold
tires245/45 R 18 100 V
M+S XL RSC2.6 / 383.1 / 45Front: 245/45 R 18
96 Y RSC
Rear:
275/40 R 18 99 Y
RSC2.6 / 38
--
2.6 / 38Front: 245/40 R 19
94 Y RSC
Rear:
275/35 R 19 96 Y
RSC2.6 / 38
--
2.9 /42Front: 245/35 R 20
95 Y XL RSC
Rear:
275/30 R 20 97 Y
XL RSC2.8 / 41
--
3.1 / 45Compact wheel:
T 135/90 R 17 104
MSpeed up to a max. of
50 mph / 80 km/h
4.2 / 60
640i xDrive Gran Coupe
Without high-speed tuning feature
Seite 194MobilityWheels and tires194
Online Edition for Part no. 01 40 2 909 877 - VI/13
Tire sizePressure specifica‐
tions 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 RSC2.3 / 332.8 / 41245/40 R 19 98 V M
+S XL A/S RSC2.5 / 362.9 /42Front: 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
Tire sizePressure specifica‐
tions 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 RSC2.6 / 383.1 / 45245/40 R 19 98 V M
+S XL A/S RSC2.8 / 413.2 / 46Front: 245/45 R 18
96 Y RSC
Rear:
275/40 R 18 99 Y
RSC2.6 / 38
--
2.6 / 38Front: 245/40 R 19
94 Y RSC
Rear:
275/35 R 19 96 Y
RSC2.6 / 38
--
2.8 / 41Front: 245/35 R 20
95 Y XL RSC
Rear:
275/30 R 20 97 Y
XL RSC2.8 / 41
--
3.1 / 45Compact wheel:
T 135/90 R 17 104
MSpeed up to a max. of
50 mph / 80 km/h
4.2 / 60
650i Gran Coupe
Without high-speed tuning feature
Seite 195Wheels and tiresMobility195
Online Edition for Part no. 01 40 2 909 877 - VI/13
Tire sizePressure specifica‐
tions 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 / 362.8 / 41245/40 R 19 98 V M
+S XL A/S RSC2.6 / 382.9 /42Front: 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
With high-speed tuning feature
Tire sizePressure specifica‐
tions in bar/PSISpecifications in
bar/PSI with cold
tires245/45 R 18 100 V
M+S XL RSC2.8 / 413.1 / 45Tire sizePressure specifica‐
tions in bar/PSIFront: 245/45 R 18
96 Y RSC
Rear:
275/40 R 18 99 Y
RSC2.8 / 41
--
2.8 / 41Front: 245/40 R 19
94 Y RSC
Rear:
275/35 R 19 96 Y
RSC2.8 / 41
--
2.8 / 41Front: 245/35 R 20
95 Y XL RSC
Rear:
275/30 R 20 97 Y XL
RSC2.9 /42
--
3.2 / 46
650i xDrive Gran Coupe
Without high-speed tuning feature
Tire sizePressure specifica‐
tions 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 / 362.8 / 41245/40 R 19 98 V M
+S XL A/S RSC2.7 / 392.9 /42Front: 245/45 R 18
96 Y RSC
Rear:
275/40 R 18 99 Y
RSC2.5 / 36
--
2.5 / 36Seite 196MobilityWheels and tires196
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Tire sizePressure specifica‐
tions in bar/PSIFront: 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
With high-speed tuning feature
Tire sizePressure specifica‐
tions 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 RSC2.8 / 413.1 / 45245/40 R 19 98 V M
+S XL A/S RSC3.0 / 443.3 / 48Front: 245/45 R 18
96 Y RSC
Rear:
275/40 R 18 99 Y
RSC2.8 / 41
--
2.8 / 41Tire sizePressure specifica‐
tions in bar/PSIFront: 245/40 R 19
94 Y RSC
Rear:
275/35 R 19 96 Y
RSC2.8 / 41
--
2.8 / 41Front: 245/35 R 20
95 Y XL RSC
Rear:
275/30 R 20 97 Y XL
RSC2.9 /42
--
3.1 / 45
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
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 Number
DOT code: DOT xxxx xxx 1013
xxxx: manufacturer code for the tire brand
xxx: tire size and tire design
1013: tire age
Tires with DOT codes meet the guidelines of
the U.S. Department of Transportation.
Seite 197Wheels and tiresMobility197
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