tires BMW 6 SERIES GRAN COUPE 2017 User Guide

Saving fuelVehicle features and optionsThis chapter describes all standard, country-
specific and optional features offered with the
series. It also describes features that are not
necessarily available in your car, e. g., due to
the selected options or country versions. This
also applies to safety-related functions and
systems. The respectively applicable country
provisions must be observed when using the
respective features 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.
Carrying out certain measures, such as a mod‐
erate driving style and regular maintenance,
can influence fuel consumption and the envi‐
ronmental impact.
Remove unnecessary cargo
Additional 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
thereby reduces the range.Tires
General information
Tires can affect fuel consumption in various
ways, e.g., tire size may influence fuel con‐
sumption.
Check the tire inflation pressure
regularly
Check and, if needed, correct the tire inflation
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 immediately
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 quickest way of warming the cold
engine up to 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 proactively reduces fuel
consumption.
Avoid high engine speeds
As a rule: driving at low engine speeds lowers
fuel consumption and reduces wear.
If necessary, observe the gear shift indicator of
the vehicle, refer to page 92.Seite 190Driving tipsSaving fuel190
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Mobility
In order to always ensure your mobility, you will find important information on operating fluids,wheels and tires, maintenance and Roadside Assistance in the following.Online Edition for Part no. 01 40 2 969 305 - II/16

Wheels and tiresVehicle features and options
This chapter describes all standard, country-
specific and optional features offered with the
series. It also describes features that are not
necessarily available in your car, e. g., due to
the selected options or country versions. This
also applies to safety-related functions and
systems. The respectively applicable country
provisions must be observed when using the
respective features 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 tire inflation pressure
WARNING
A tire with low or missing tire inflation
pressure impacts handling, such as steering
and braking response. There is risk of an acci‐
dent. Regularly check the tire inflation pres‐
sure, and correct it as needed, e.g., twice a
month and before a long trip.◀
Tires have a natural, consistent loss of tire in‐
flation pressure.
Tires heat up while driving, and the tire infla‐
tion pressure increases along with the tire's
temperature. The tire inflation pressure speci‐
fications relate to cold tires or tires with the
ambient temperature.
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.
The displays of inflation devices may under-
read by up to 0.1 bar/2 psi.
For Flat Tire Monitor: after correcting the tire
inflation pressure, reinitialize the Flat Tire
Monitor.
For Tire Pressure Monitor: after correcting the
tire inflation pressure, reset the Tire Pressure
Monitor.
Tire inflation pressure specifications
The tire inflation pressure table, refer to
page 203, contains all tire inflation pressure
specifications for the specified tire sizes at the
ambient temperature. The tire inflation pres‐
sure values apply to tire sizes approved by the
manufacturer of the vehicle for the vehicle
type.
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 203, and adjust as necessary.
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These pressure values can also be found on
the tire inflation pressure label on the driver's
door pillar.
Do not exceed a speed of 100 mph/160 km/h.
Tire inflation pressure values up to
100 mph/160 km/h
640i Gran Coupe
Tire 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 RSC2.3 / 332.5 / 36245/40 R 19 98 V
M+S XL A/S RSC2.3 / 332.6 / 38Front: 245/45 R 18
96 Y RSC2.3 / 33-Rear: 275/40 R 18
99 Y RSC-2.3 / 33Front: 245/40 R 19
94 Y RSC2.3 / 33-Rear: 275/35 R 19
96 Y RSC-2.5 / 36Tire sizePressure specifications
in bar/PSIFront: 245/35 R 20
95 Y XL RSC2.5 / 36-Rear: 275/30 R 20
97 Y XL RSC-2.8 / 41Emergency 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
Tire 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 RSC2.3 / 332.5 / 36245/40 R 19 98 V
M+S XL A/S RSC2.3 / 332.6 / 38Front: 245/45 R 18
96 Y RSC2.3 / 33-Rear: 275/40 R 18
99 Y RSC-2.3 / 33Front: 245/40 R 19
94 Y RSC2.3 / 33-Rear: 275/35 R 19
96 Y RSC-2.5 / 36Front: 245/35 R 20
95 Y XL RSC2.5 / 36-Seite 203Wheels and tiresMobility203
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Tire sizePressure specifications
in bar/PSIRear: 275/30 R 20
97 Y XL RSC-2.8 / 41Emergency wheel:
T 135/90 R 17 104
MSpeed up to a max. of
50 mph / 80 km/h
4.2 / 60
650i Gran Coupe
Tire 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 RSC2.5 / 36-Rear: 275/40 R 18
99 Y RSC-2.5 / 36Front: 245/40 R 19
94 Y RSC2.5 / 36-Rear: 275/35 R 19
96 Y RSC-2.5 / 36Front: 245/35 R 20
95 Y XL RSC2.7 / 39-Rear: 275/30 R 20
97 Y XL RSC-2.9 /42650i xDrive 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 RSC2.5 / 36-Rear: 275/40 R 18
99 Y RSC-2.5 / 36Front: 245/40 R 19
94 Y RSC2.5 / 36-Rear: 275/35 R 19
96 Y RSC-2.5 / 36Front: 245/35 R 20
95 Y XL RSC2.7 / 39-Rear: 275/30 R 20
97 Y XL RSC-2.9 /42
Tire inflation pressures at max.
speeds above 100 mph/160 km/h
WARNING
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.◀
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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 RSC2.3 / 33-Rear: 275/40 R 18
99 Y RSC-2.3 / 33Front: 245/40 R 19
94 Y RSC2.3 / 33-Rear: 275/35 R 19
96 Y RSC-2.5 / 36Front: 245/35 R 20
95 Y XL RSC2.5 / 36-Rear: 275/30 R 20
97 Y XL RSC-2.8 / 41Emergency 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 RSC2.6 / 38-Rear:
275/40 R 18 99 Y
RSC-2.6 / 38Front: 245/40 R 19
94 Y RSC2.6 / 38-Rear: 275/35 R 19
96 Y RSC-2.9 /42Front: 245/35 R 20
95 Y XL RSC2.8 / 41-Rear: 275/30 R 20
97 Y XL RSC-3.1 / 45Emergency 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
Tire 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 RSC2.3 / 332.8 / 41Seite 205Wheels and tiresMobility205
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Tire sizePressure specifications
in bar/PSI245/40 R 19 98 V
M+S XL A/S RSC2.5 / 362.9 /42Front: 245/45 R 18
96 Y RSC2.3 / 33-Rear: 275/40 R 18
99 Y RSC-2.3 / 33Front: 245/40 R 19
94 Y RSC2.3 / 33-Rear: 275/35 R 19
96 Y RSC-2.5 / 36Front: 245/35 R 20
95 Y XL RSC2.5 / 36-Rear: 275/30 R 20
97 Y XL RSC-2.8 / 41Emergency 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 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 RSC2.6 / 38-Rear: 275/40 R 18
99 Y RSC-2.6 / 38Tire sizePressure specifications
in bar/PSIFront: 245/40 R 19
94 Y RSC2.6 / 38-Rear: 275/35 R 19
96 Y RSC-2.8 / 41Front: 245/35 R 20
95 Y XL RSC2.8 / 41-Rear: 275/30 R 20
97 Y XL RSC-3.1 / 45Emergency 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
Tire 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 / 362.8 / 41245/40 R 19 98 V
M+S XL A/S RSC2.6 / 382.9 /42Front: 245/45 R 18
96 Y RSC2.5 / 36-Rear: 275/40 R 18
99 Y RSC-2.5 / 36Front: 245/40 R 19
94 Y RSC2.5 / 36-Rear: 275/35 R 19
96 Y RSC-2.5 / 36Seite 206MobilityWheels and tires206
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Tire sizePressure specifications
in bar/PSIFront: 245/35 R 20
95 Y XL RSC2.7 / 39-Rear: 275/30 R 20
97 Y XL RSC-2.9 /42
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 RSC2.8 / 413.1 / 45Front: 245/45 R 18
96 Y RSC2.8 / 41-Rear: 275/40 R 18
99 Y RSC-2.8 / 41Front: 245/40 R 19
94 Y RSC2.8 / 41-Rear: 275/35 R 19
96 Y RSC-2.8 / 41Front: 245/35 R 20
95 Y XL RSC2.9 /42-Rear: 275/30 R 20
97 Y XL RSC-3.2 / 46
650i xDrive Gran Coupe
Without high-speed tuning feature
Tire 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 / 362.8 / 41245/40 R 19 98 V
M+S XL A/S RSC2.7 / 392.9 /42Front: 245/45 R 18
96 Y RSC2.5 / 36-Rear: 275/40 R 18
99 Y RSC-2.5 / 36Front: 245/40 R 19
94 Y RSC2.5 / 36-Rear: 275/35 R 19
96 Y RSC-2.5 / 36Front: 245/35 R 20
95 Y XL RSC2.7 / 39-Rear: 275/30 R 20
97 Y XL RSC-2.9 /42
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 A/S RSC
245/45 R 18 100 V
M+S XL RSC2.8 / 413.1 / 45Seite 207Wheels and tiresMobility207
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Tire sizePressure specifications
in bar/PSI245/40 R 19 98 V
M+S XL A/S RSC3.0 / 443.3 / 48Front: 245/45 R 18
96 Y RSC2.8 / 41-Rear: 275/40 R 18
99 Y RSC-2.8 / 41Front: 245/40 R 19
94 Y RSC2.8 / 41-Rear: 275/35 R 19
96 Y RSC-2.8 / 41Front: 245/35 R 20
95 Y XL RSC2.9 /42-Rear: 275/30 R 20
97 Y XL RSC-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
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 Number DOT code: DOT xxxx xxx 0116
xxxx: manufacturer code for the tire brand
xxx: tire size and tire design
0116: tire age
Tires with DOT codes meet the guidelines of
the U.S. Department of Transportation.
Tire age DOT … 0116: the tire was manufactured in the
1st week of 2016.
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.
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‐Seite 208MobilityWheels and tires208
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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.
WARNING
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.◀RSC – Run-flat tires
Run-flat tires, refer to page 212, are labeled
with a circular symbol containing the letters
RSC marked on the sidewall.
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 inches/3 mm.
There is an increased danger of hydroplaning if
the tire tread depth is less than 0.12 in‐
ches/3 mm.
Winter tires
Do not drive with a tire tread depth of less than
0.16 inches/4 mm.
Below a tread depth of 0.16 inches/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‐
ches/1.6 mm.
They are marked on the side of the tire with
TWI, Tread Wear Indicator.
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