wheel BMW M4 2015 Service Manual

Driving comfortVehicle 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.
Cruise control The concept The system maintains a preset speed via the
buttons on the steering wheel. The system brakes on downhill gradients if engine braking
is insufficient.
General information
Depending on the driving settings, the features
of the cruise control can change in certain
areas.
Hints Unfavorable conditions
Do not use the system if unfavorable
conditions make it impossible to drive at a con‐
stant speed, e.g.:▷On winding roads.▷In heavy traffic.▷On slippery roads, in fog, snow or rain, or
on a loose road surface.
Otherwise, you could lose control of the vehi‐
cle and cause an accident.◀
Overview
Buttons on the steering wheelPress buttonFunctionSystem on/off, interruptStore speedResume speedrocker switch: change, hold,
store speed
Controls
Switching on Press button on the steering wheel.
The marking in the speedometer is set to the
current speed.
Cruise control can be used.
Switch off Deactivated or interrupted system
With deactivated or interrupted system
use your brakes, steering and moves as usual
to avoid the chance of an accident.◀
Press button.
▷If active: press twice.▷If interrupted: press once.
The displays go out. The stored desired speed
is deleted.
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Pathway lines▷Pathway lines can be superimposed on the
image of the rearview camera.▷They help you to estimate how much
space is needed when parking and maneu‐
vering on level pavement.▷They are dependent on the current steer‐
ing angle and are continuously adjusted to
the steering wheel movements.
Turning circle lines
▷Turning circle lines can only be superim‐
posed on the rearview camera image to‐
gether with pathway lines.▷They show the course of the smallest pos‐
sible turning radius on a level road.▷Only one turning radius line is displayed af‐
ter the steering wheel is turned past a cer‐
tain angle.Obstacle marking
Obstacle markings can be faded into the image
of the rearview camera.
Their colored margins match the markings of
the PDC. This simplifies estimation of the dis‐
tance to the object shown.
Parking using pathway and turning
radius lines
1.Position the vehicle so that the turning ra‐
dius lines lead to within the limits of the
parking space.2.Turn the steering wheel to the point where
the pathway line covers the corresponding
turning radius line.Seite 126ControlsDriving comfort126
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Cameras
The lenses of the Top View camera are located
at the bottom in the mirror housings. The im‐
age quality may be impaired by dirt.
Clean the camera lenses, refer to page 208.
Switching on/off
Switching on automatically With the engine running, engage lever in posi‐
tion P R.
The Top View and PDC images are displayed if
the system is switched on via iDrive.
Automatic deactivation during forward
travel
The system switches off when a certain driving
distance or speed is exceeded.
Switch the system back on if needed.
Switching on/off manually Press button.
▷On: the LED lights up.▷Off: the LED goes out.
Top View is displayed.
Display
Visual warning
The approach of the vehicle to an object can
be shown on the Control Display.
When the distance to an object is small, a red
bar is shown in front of the vehicle, as it is in
the PDC display.
The display appears as soon as Top View is
activated.
When the image of the rearview camera is dis‐
played, it is possible to reel to top view:
"Rear view camera"
Brightness
With Top View switched on:
1. Select the symbol.2.Turn the controller until the desired setting
is reached, and press the controller.
Contrast
With Top View switched on:
1. Select the symbol.2.Turn the controller until the desired setting
is reached, and press the controller.
Displaying the turning radius and
pathway lines
▷The static, red turning radius line shows
the space needed to the side of the vehicle
when the steering wheel is turned all the
way.▷The variable, green pathway line assists
you in assessing the amount of space ac‐
tually needed to the side of the vehicle.
The lane line depends on the engaged
gear and the current steering angle. TheSeite 129Driving comfortControls129
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track line is continuously adjusted for the
steering wheel movement.
"Parking aid lines"
Turning circle and pathway lines are displayed.
System limits
Top View cannot be used in the following sit‐
uations:
▷With a door open.▷With the trunk lid open.▷With an exterior mirror folded in.▷In poor light.
A Check Control message is displayed in some
of these situations.
Parking assistant The concept
This system assists the driver in parking paral‐
lel to the road.
Ultrasound sensors measure parking spaces
on both sides of the vehicle.
The parking assistant calculates the best pos‐
sible parking line and takes control of steering
during the parking procedure.
When parking, also take note of the visual and
acoustic information and instructions issued
by the PDC, the parking assistant and the rear‐
view camera and react accordingly.
A component of the parking assistant is the
PDC Park Distance Control, refer to page 122.
Hints
Personal responsibility
Even an active system does not relieve
the driver from personal responsibility while
driving.
Technically the system has its limits, it cannot
independently react to all traffic situations.
Monitor your driving, be on the alert, observe
the vehicle surroundings and other traffic and
react when needed - risk of accident.◀
Changes to the parking space
Changes to the parking space after it was
measured are not taken into account by the system.
Therefore, always be alert and ready to inter‐
vene; otherwise, there is the risk of an acci‐
dent.◀
Transporting cargo
Cargo that extends beyond the perimeter
of the vehicle is not taken into account by the
system during the parking procedure.
Therefore, always be alert and ready to inter‐
vene; otherwise, there is the risk of an acci‐
dent.◀
Curbs
The parking assistant may steer the vehi‐
cle over or onto curb if need be.
Therefore, always be alert and ready to inter‐
vene; otherwise, the wheels, tires, or the vehi‐
cle may become damaged.◀
An engine that has been switched off by the
Auto Start Stop function is restarted automati‐
cally when the parking assistant is activated.
Requirements
For measuring parking spaces▷Maximum speed while driving forward ap‐
prox. 22 mph/35 km/h.Seite 130ControlsDriving comfort130
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Display on the Control Display
System activated/deactivatedSymbolMeaning Gray: the system is not available.
White: the system is available but
not activated. The system is activated.
System status
▷Colored symbols, see arrows, on the side
of the vehicle illustrated. Parking assistant
is activated and search for parking space
active.▷Control Display shows suitable parking
spaces at the edge of the road next to the
vehicle symbol. When the parking assistant
is active, suitable parking spaces are high‐
lighted.▷The parking procedure is ac‐
tive. Steering control has
been taken over by system.▷Parking space search is always active
whenever the vehicle is moving forward
slow and straight, even if the system is de‐
activated. When the system is deactivated,
the displays on the Control Display are
shown in gray.Parking using the parking assistant
Check the traffic situation as well
Louds noises outside and inside the ve‐
hicle can drown out the parking assistant's and
PDC's signals.
Check the traffic situation around the vehicle
with your own eyes; otherwise, there is a dan‐
ger of an accident.◀1.Switch on the parking assistant and acti‐
vate it if needed.
The status of the parking space search is
indicated on the Control Display.2.Follow the instructions on the Control Dis‐
play.
The best possible parking position will
come after gear change on the stationary
vehicle - wait for the automatic steering
wheel move.
The end of the parking procedure is indi‐
cated on the Control Display.3.Adjust the parking position yourself if
needed.
Interrupting manually
The parking assistant can be interrupted at any
time:
▷ "Parking Assistant" Select the symbol
on the Control Display.▷Press button.
Interrupting automatically
The system is interrupted automatically in the
following situations:
▷If the driver grasps the steering wheel or if
he takes over steering.▷If a gear is selected that does not match
the instruction on the Control Display.▷If the vehicle speed exceeds approx.
6 mph/10 km/h.Seite 132ControlsDriving comfort132
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Switching on
Press any button except▷Rear window defroster.▷Seat heating.
Microfilter/activated-charcoal filter
In external and recirculated air mode the mi‐
crofilter/activated charcoal filter filters dust,
pollen, and gaseous pollutants out of the air.
This filter should be replaced during scheduled
maintenance, refer to page 188, of your vehi‐
cle.
Ventilation
Front ventilation
▷Lever for changing the air flow direction,
arrow 1.▷Thumbwheels for opening and closing the
vents continuously, arrows 2.▷Thumbwheel to vary the temperature in
the upper body region, arrow 3.
Toward blue: colder.
Toward red: warmer.
The set interior temperature for the driver
and passenger are not changed.
Adjusting the ventilation
▷Ventilation for cooling:
Direct vent in your direction when vehicle's
interior is too hot.▷Draft-free ventilation:
Adjust the vent to let the air flow past you.
Ventilation in the rear
▷Thumbwheel for continuous opening and
closing of the vents, arrow 1.▷Thumbwheel to vary the temperature, ar‐
row 2.
Toward blue: colder.
Toward red: warmer.▷Lever for changing the air flow direction,
arrow 3.
Parked-car ventilation
The concept The parked-car ventilation ventilates the vehi‐
cle interior and lowers its temperature, if
needed.
The system can be switched on and off at any
external temperature, either directly or by us‐
ing two preset reel-on times. It remains
switched on for 30 minutes.
Open the vents to allow air to flow out.
Switching on/off directly
On the Control Display:
1."Settings"2."Climate"3."Activate comf. ventilation"Seite 137Climate controlControls137
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BMW M4 technologyVehicle 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.
High-performance engine The high-performance engine gets a maximum
power of 317 kW and maximum torque of
550 Nm from a displacement of 3 liters. With
its spontaneous response behavior, a speed
range of wide utility results. The maximum en‐
gine speed is 7,600 rpm and is electronically
controlled. Because of the high engine dynam‐
ics, the maximum engine speed with the vehi‐
cle stationary is reduced.
Warm-up During the engine warm-up phase, the high-performance engine has a somewhat rougher
running behavior because of the emission con‐
trols.
When the engine is cold, the exhaust system
has a slightly metallic undertone due to the na‐
ture of the system.
For more information about the warm-up pro‐
cedure: Engine speed, refer to page 80, and
engine oil temperature, refer to page 80.
Compound brake
The high-performance braking system has
perforated compound brake discs.Because of particular structural characteristics,
there may be operation-related noises during
braking. However, this has no effect on per‐
formance, operational reliability and reliability
of the brake.
Correct brakingTo keep the brake system in optimum condi‐
tion, it is expedient to apply them at regular in‐
tervals corresponding to the vehicle character.
M carbon ceramic brake The high-performance braking system has
perforated carbon-ceramic brake disks and is
designed for use on racetracks.
Due to properties of the materials used, brak‐ ing may be associated with louder function
noises, particularly in wet conditions, just be‐
fore the vehicle comes to a stop. However, this
has no effect on the performance, operational
reliability and durability of the brake.
The effects of moisture and road salt, from us‐
ing a carwash or dew formation overnight e.g.,
may render the braking effect comparable to
that of a conventional braking system. This
may be perceived as reduced braking effect
and can be compensated for if needed by
pressing the brake pedal harder.
Before washing the vehicle in an automatic
carwash or wash tunnel, clean the brake discs
and brake calipers with a steam jet or high-
pressure washer as well, to prevent encrusta‐
tions and dirt buildups, caused by salt crystals,
e.g., if the car is immobile afterwards. The
cleaning effect of automatic carwashes or
wash tunnels is usually not adequate for this in
the area around the wheels.
To do this, also follow the instructions in
Washing the vehicle, refer to page 205, and
Braking safely, refer to page 157.Seite 154Driving tipsBMW M4 technology154
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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 2 960 786 - II/15

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
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.◀
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 1.45 psi/0.1 bar.
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 173, contains all tire inflation pressure
specifications for the specified tire sizes at the
ambient temperature. Tire inflation pressure
specifications apply to approved 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 173, 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.
Maximum permissible speed
Do not exceed 100 mph/160 km/h; other‐
wise, tire damage and accidents may result.◀
Tire inflation pressure values up to
100 mph/160 km/h
M4 Coupe
Tire sizePressure specifications in
bar/PSISpecifications in
bar/PSI with cold
tires255/40 R 18 99
V M+S XL2.2 / 312.3 / 33255/35 R 19 96
V M+S XL2.4 / 342.6 / 37Front: 255/40 R
18 95 (Y)
Rear: 275/40 R
18 99 (Y)2.2 / 31
--
2.2 / 31Front: 255/35 R
19 92 (Y)
Rear: 275/35 R
19 100 (Y) XL2.2 / 31
--
2.2 / 31Tire 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.◀
Tire inflation pressure values over
100 mph/160 km/h
M4 CoupeTire sizePressure specifications in
bar/PSISpecifications in
bar/PSI with cold
tires255/40 R 18 99
V M+S XL2.5 / 362.8 / 40255/35 R 19 96
V M+S XL2.9 /423.2 / 46Front: 255/40 R
18 95 (Y)
Rear: 275/40 R
18 99 (Y)2.4 / 34
--
2.4 / 34Front: 255/35 R
19 92 (Y)
Rear: 275/35 R
19 100 (Y) XL2.4 / 34
--
2.6 / 37
Tire identification marks
Tire size 245/45 R 18 96 Y
245: nominal width in mm
Seite 173Wheels and tiresMobility173
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