brakes BMW M4 2015 Owners Manual

chemicals known to the State of California to
cause cancer and birth defects or other repro‐
ductive harm. Battery posts, terminals and re‐
lated accessories contain lead and lead com‐
pounds. Wash your hands after handling. Used
engine oil contains chemicals that have caused
cancer in laboratory animals. Always protect
your skin by washing thoroughly with soap and
water.
Service and warranty
We recommend that you read this publication
thoroughly. Your vehicle is covered by the fol‐
lowing warranties:▷New Vehicle Limited Warranty.▷Rust Perforation Limited Warranty.▷Federal Emissions System Defect War‐
ranty.▷Federal Emissions Performance Warranty.▷California Emission Control System Lim‐
ited Warranty.
Detailed information about these warranties is
listed in the Service and Warranty Information
Booklet for US models or in the Warranty and
Service Guide Booklet for Canadian models.
Your vehicle has been specifically adapted and
designed to meet the particular operating con‐
ditions and homologation requirements in your
country and continental region in order to de‐
liver the full driving pleasure while the vehicle
is operated under those conditions. If you wish
to operate your vehicle in another country or
region, you may be required to adapt your ve‐
hicle to meet different prevailing operating
conditions and homologation requirements.
You should also be aware of any applicable
warranty limitations or exclusions for such
country or region. In such case, please contact
Customer Relations for further information.
Maintenance
Maintain the vehicle regularly to sustain the
road safety, operational reliability and the New
Vehicle Limited Warranty.
Specifications for required maintenance meas‐
ures:▷BMW Maintenance system▷Service and Warranty Information Booklet
for US models▷Warranty and Service Guide Booklet for
Canadian models
If the vehicle is not maintained according to
these specifications, this could result in seri‐
ous damage to the vehicle. Such damage is
not covered by the BMW New Vehicle Limited
Warranty.
Data memory
Many electronic components on your vehicle
are equipped with data memories that tempo‐
rarily or permanently store technical informa‐
tion about the condition of the vehicle, events
and faults. This technical information generally
records the state of a component, a module, a system or the environment:
▷Operating mode of system components, fill
levels for instance.▷Status messages for the vehicle and from
its individual components, e.g., wheel rota‐
tion speed/vehicle speed, deceleration,
transverse acceleration.▷Malfunctions and faults in important sys‐
tem components, e.g., lights and brakes.▷Responses by the vehicle to special situa‐
tions such as airbag deployment or engag‐
ing the stability control system.▷Ambient conditions, such as temperature.
This data is purely technical in nature and is
used to detect and correct faults and to opti‐
mize vehicle functions. Motion profiles over
routes traveled cannot be created from this
data. When service offerings are used, e.g., re‐
pair services, service processes, warranty
claims, quality assurance, this technical infor‐
mation can be read out from the event and
fault memories by the service personnel, in‐
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DrivingVehicle 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.
Start/Stop button The concept Pressing the Start/Stop button
switches the ignition on or off
and starts the engine.
M Double-clutch transmission:
The engine starts if the brakes
are stepped on while pressing the Start/Stop
button.
Manual transmission: The engine starts with
the clutch pedal pressed when the Start/Stop
button is pressed.
Ignition onM double-clutch transmission: Press the Start/
Stop button without stepping on the brake.
Manual transmission: Press the Start/Stop but‐
ton without stepping on the clutch pedal.
All vehicle systems are ready for operation.
Most of the indicator and warning lights in the
instrument cluster light up for a varied length
of time.
To save battery power when the engine is off,
switch off the ignition and any unnecessary
electronic systems/power consumers.Ignition off
M double-clutch transmission: Press the Start/
Stop button again without stepping on the
brake.
Manual transmission: Press the Start/Stop but‐
ton again without stepping on the clutch pedal.
All indicator lights in the instrument cluster go
out.
To save battery power when the engine is off,
switch off the ignition and any unnecessary
electronic systems/power consumers.
P when the ignition is switched off
P is engaged automatically when the ig‐
nition is switched off. When in an automatic car
wash, e.g., ensure that the ignition is not
switched off accidentally.◀
The ignition automatically cuts off while the
vehicle is stationary and the engine is stopped:▷When locking the vehicle, and when the
low beams are activated.▷Shortly before the battery is discharged
completely, so that the engine can still be
started. This function is only available
when the low beams are turned off.▷When opening or closing the driver door, if
the driver's safety belt is unbuckled and
the low beams are turned off.▷While the driver's safety belt is unbuckled
with driver's door open and low beams off.
The low beams switch to parking lights after
approx. 15 minutes of no use.
Radio ready state
Activate radio-ready state:
▷When the engine is running: press the
Start/Stop button.
Some electronic systems/power consumers
remain ready for operation.
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and downward inclines, further secure the ve‐
hicle, e.g., by turning the steering wheel in the
direction of the curb.◀
Before driving into a car wash
So that the vehicle can roll into a car wash ob‐
serve instructions for going into an automatic
car wash, refer to page 205.
M double-clutch transmission
Switching off the engine1.Apply the brakes until the vehicle comes to
a stop.2.Press the Start/Stop button.
The engine is switched off.
The radio-ready state is switched on.3.Set the parking brake.
Manual transmission
Switching off the engine
1.With the vehicle at a standstill, press the
Start/Stop button.2.Shift into first gear or reverse.3.Set the parking brake.
Auto Start/Stop function
The concept The Auto Start/Stop function helps save fuel.
The system switches off the engine during a
stop, e.g., in traffic congestion or at traffic lights. The ignition remains switched on. The
engine starts again automatically for driving
off.
Automatic mode After every start of the engine using the Start/
Stop button, the Auto Start/Stop function is in
the last selected state, refer to page 66.
When the Auto Start/Stop function is active, it
is available when the vehicle is traveling faster
than about 3 mph, approx. 5 km/h.
Engine stop
The engine is switched off automatically dur‐
ing a stop under the following conditions:
M double-clutch transmission:▷The selector lever is in selector lever posi‐
tion D.▷Brake pedal remains depressed while the
vehicle is stopped.▷The driver's safety belt is buckled or the
driver's door is closed.
Manual transmission:
▷Neutral is engaged and the clutch pedal is
not pressed.▷The driver's safety belt is buckled or the
driver's door is closed.
The air flow from the air conditioner is reduced
when the engine is switched off.
Displays in the instrument cluster The READY display in the tach‐
ometer signals that the Auto
Start/Stop function is ready to
start the engine automatically.
The display indicates that the
conditions for an automatic en‐
gine stop have not been met.
Functional limitations The engine is not switched off automatically in
the following situations:
▷External temperature too low.▷The external temperature is high and auto‐
matic climate control is running.▷The car's interior has not yet been heated
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Selector lever, selector lever positions
At a glance▷R: reverse gear.▷N: neutral.▷ Center position, forward position.▷+: manual upshifting.▷-: manual downshifting.▷D/S: reel between drive mode and sequen‐
tial mode.
Engaging a selector lever position
Press on the brake pedal and pull or push the
selector lever in the corresponding direction.
As soon as the selector lever is released, it re‐
verts to the center position. In position R, the
selector lever locks.
The engaged selector lever position is dis‐
played in the instrument cluster and on the se‐
lector lever.
If a selector lever position is engaged, the vehi‐
cle may start rolling, after the brake is released,
e.g. on downhill slopes. Thus, drive off immedi‐
ately after releasing the brake.
Use the Slow Speed Assistant for maneuver‐
ing and during stop-and-go traffic.
Low Speed Assistant
The Low Speed Assistant gives assistance at
very low speeds. The vehicle moves at walking
speed.
This can also be used for rocking the vehicle in
the snow. To do this, reel between reverse
gear and forward gear without stepping on the
brakes in the process.
Activating1.Engage a driving position.2.Briefly tap the accelerator pedal.
The vehicle rolls at minimum speed.
This is possible in 1st and 2nd gear and in re‐
verse gear.
Overheating
Do not ride the brake; otherwise, the
transmission may overheat.◀
Deactivating
Apply the brakes until the vehicle comes to a
stop.
Flashing display on the selector lever of the double clutch transmission
The actually engaged transmission position
can deviate from the selector lever position in
some situations. The display in the selector
lever flashes.
Observe the display in the instrument cluster,
refer to page 72, in these cases.
D Drive mode In Drive mode, all forward gears are automati‐
cally changed.
Kickdown: for maximum acceleration, e. g.
when passing. To do this, depress the acceler‐
ator pedal past the resistance point.
Switch to Sequential mode: shift using the
shift paddles or the selector lever, or push the
selector lever in the D/S direction.
S Sequential mode
Use the shift paddles or the selector lever to
upshift or downshift without letting off the gas.
▷Shortly before falling below a gear-de‐
pendent minimum speed, the transmission
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▷Upshifting or downshifting is done only if
the rpm and vehicle speed are appropriate.
For example, there is no downshifting if the
engine speed is too high.▷Kickdown: the lowest possible gear is se‐
lected by simultaneously operating the
kickdown and the left shift paddle or selec‐
tor lever.▷It is also possible to start out in 2nd gear,
e. g. on icy roads.
Switch to Drive mode: push selector lever in
D/S direction.
R is Reverse
Select only when the vehicle is stationary.
It is also possible to rock the vehicle up to
6 mph/10 km/h. To do this, reel between for‐
ward gear and reverse gear without stepping
on the brakes in the process.
N is NeutralUse in automatic car washes, e.g. The vehicle
can then roll, refer to page 205.
P Park The drive wheels are blocked.
P is engaged automatically:
▷After the engine is switched off when the
vehicle is in radio-ready state, refer to
page 62, or when the ignition is switched
off, refer to page 62, and when position R
or D is set.▷With the ignition is off, if position N is set.
Displays in the instrument cluster
Drive mode
▷Engaged gear together with
a D, arrow 1.▷Selected driving program,
Drivelogic, refer to
page 72, arrow 2.Sequential mode▷Engaged gear, arrow 1.▷Selected driving program,
Drivelogic, refer to
page 72, arrow 2.▷Gear shift indicator, refer to
page 84
Note
When the external temperature is very low, the
display may not work. Current driving direction
is recognizable at the engaged selector lever
position.
Gear change
Shifting in Sequential mode possible.
A shift in Drive mode causes a reel to Sequen‐
tial mode.
Using the selector lever
▷To shift up: pull the selector lever rear‐
wards.▷To shift down: press the selector lever for‐
ward.
Using the shift paddles on the steering wheel
▷Shift up: pull right shift paddle.▷Shift down: pull left shift paddle.
Drivelogic
Various driving programs are available.
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Switching on/offThe Intelligent Safety systems are automati‐
cally active after every departure.
Press button: the systems are turned
off. The LED goes out.
Press button: the systems are turned on. The
LED lights up.
Settings can be made on the Control Display.
Front-end collision warning
with City Braking function
The concept The ystem can help prevent accidents. If an
accident cannot be prevented, the system will help reduce the collision speed.
The system sounds a warning before an immi‐
nent collision and actuates brakes independ‐
ently if needed.
The automatic braking intervention is done
with limited force and duration.
A camera in the area of the rearview mirror controls the system.
The front-end collision warning is available
even if cruise control has been deactivated.
With the vehicle approaching another vehicle
intentionally the collision warning is delayed
avoiding false alarm.
General information
The system warns at two levels of an imminent
danger of collision at speeds from approx.
3 mph/5 km/h. Time of warnings may vary with
the current driving situation.
Appropriate braking kicks in at speeds of up to
35 mph/60 km/h.Detection range
It responds to objects if they are detected by
the system.
Hints Personal responsibility
The system does not serve as a substi‐
tute for the driver's personal judgment of the
traffic situation.
Be aware of the traffic situation and the vehi‐
cle's surroundings at all times, otherwise acci‐
dents are still possible despite all warnings.◀
Adapting your speed and driving style
The displays and warnings of the system
do not relieve the driver of the responsibility to
adapt his or her driving speed and style to the
traffic conditions.◀
Be alert
Due to system limitations, warnings may
be not issued at all, or may be issued late or
improperly. Therefore, always be alert and
ready to intervene; otherwise, there is the risk
of an accident.◀
Tow-starting and towing
For tow-starting or towing, switch off the
Intelligent Safety systems; otherwise malfunc‐
tions of the individual braking systems might
lead to accidents.◀
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Driving stability control systemsVehicle 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.
Antilock Brake System ABS ABS prevents locking of the wheels during
braking.
The vehicle contains its steering power even
during full brake applications, thus increasing
active safety.
ABS is operational every time you start the en‐
gine.
Brake assistant When you apply the brakes rapidly, this system
automatically produces the greatest possible
braking force boost. It reduces the braking dis‐
tance to a minimum during emergency stop.
This system utilizes all of the benefits provided
by ABS.
Do not reduce the pressure on the brake pedal
for the duration of the emergency stop.
M Drive The conceptIndividual settings can be carried out in two
preassigned configurations for the vehicle.When the engine is started, an efficient driving
state is active by default. M Drive is deacti‐
vated.
At a glance
Configurations
The configurations are preassigned as follows:▷"M Drive 1": relaxed, comfortable driving.▷"M Drive 2": sporty, dynamic driving.
Setting options
SymbolMeaning Dynamic Stability Control DSC, re‐
fer to page 115, and M Dynamic
Mode MDM. Programs of M Engine Dynamics
Control, refer to page 74. Programs of the Adaptive M chas‐
sis, refer to page 117. Programs of Servotronic, refer to
page 118. Drivelogic, refer to page 72: shift
modes and Drivelogic driving pro‐
grams. Views of the Head-up Display, refer
to page 90.
Configuring M Drive
The preassigned configurations can be individ‐
ually adjusted.
On the Control Display:
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3.Select the desired setting option.4.Select the desired channel.
Individual settings are stored for the profile
currently in use.
If M Drive is activated, a change in the setting
on the Control Display is immediately adopted.
Activating/deactivating M Drive
Activating Press the corresponding button on the steer‐
ing wheel:
▷Activate M Drive 1.▷Activate M Drive 2.
If DSC OFF or MDM is set in M Drive, a mes‐
sage appears in the instrument cluster. This
message is confirmed by pressing the button
again.
Deactivating Press the corresponding button on the steer‐
ing wheel.
Indicator lights
▷Indicator lamp comes on: corre‐
sponding M Drive is activated.▷Indicator lamp flashes: M Drive
could not be activated. Antilock
braking system ABS or Dynamic
Stability Control DSC directly regu‐
late the driving stability.
Reactivate M Drive if indicator lamp
is no longer flashing.
Hints
If M Drive is activated, individual settings can
also be modified outside of M Drive, e. g. using
the buttons in the center console. This deacti‐
vates M Drive.
To reactivate all settings made for M Drive on
the Control Display, briefly press one of the fol‐
lowing buttons:▷▷
To adopt the changed settings in M Drive,
press and hold the corresponding button.
Resetting M Drive
Individual settings can be reset to default val‐
ues.
1."Settings"2."M Drive 1" or "M Drive 2"3."Reset M Drive 1" or "Reset M Drive 2"4."Yes"
To cancel resetting: "No"
DSC Dynamic Stability
Control
The concept
DSC prevents traction loss in the power
wheels when driving off and accelerating.
DSC also recognizes unstable vehicle condi‐
tions such as fishtailing or nose-diving. Within
the physical limits DSC helps to keep the vehi‐
cle on a steady course by reducing engine
speed and by applying brakes to the individual
wheels.
Note Adjust your driving style to the situation
An appropriate driving style is always the
responsibility of the driver.
The laws of physics cannot be repealed, not
even with DSC.
Therefore, do not reduce the additional safety
margin by driving in a risky manner.◀
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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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InterruptingWhen active, press the button.
The system is automatically interrupted if:▷The brakes are applied.▷The clutch pedal is depressed for a few
seconds or released while a gear is not en‐
gaged.▷The gear engaged is too high for the cur‐
rent speed.▷MDM is activated or DSC is deactivated.▷DSC is actively controlling stability.
Maintaining, storing, and changing the
speed
Hints Adjusting the desired speed
Modify desired speed to road conditions
and be ready to brake at all times; otherwise,
there is the risk of an accident.◀
Maintaining/storing the speed Press button.
Or:
Press the rocker switch while the system is in‐
terrupted.
When the system is switched on, the current
speed is maintained and stored as the desired
speed.
This is displayed, refer to page 121, in the
speedometer and briefly in the instrument
cluster.
When cruise control is maintained or stored,
DSC Dynamic Stability Control will be turned
on if needed.
Changing the speed
Press the rocker switch up or down repeatedly
until the desired speed is set.
If active, the displayed speed is stored and the
vehicle reaches the stored speed when the
road is clear.▷Each time the rocker switch is pressed to
the point of resistance, the desired speed
increases or decreases by approx.
1 mph/1 km/h.▷Each time the rocker switch is pressed
past the point of resistance, the desired
speed increases or decreases by a maxi‐
mum of 5 mph/10 km/h.
The maximum speed that can be set de‐
pends on the vehicle.▷Pressing the rocker switch to the resist‐
ance point and holding it accelerates or de‐
celerates the vehicle without requiring
pressure on the accelerator pedal.
After the rocker switch is released, the ve‐
hicle maintains its final speed. Pressing the
switch beyond the resistance point causes
the vehicle to accelerate more rapidly.
Resuming the desired speed
Press button.
The stored speed is reached and maintained. Displays in the instrument cluster
Indicator lamp Depending on how the vehicle is equip‐
ped, the indicator lamp in the instru‐
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