BMW M4 2018 Repair Manual

Indicator
lamp
on
the
rear-view
mirror'yIndicator lamp flashes every 2 seconds:
The alarm system is switched on.'yIndicator lamp flashes for approximately
10 seconds before it flashes every 2 secj onds:
The interior movement detector and tilt
alarm sensor are not active because doors, bonnet or boot lid are not closed correctly.
Correctly closed access points are sej
cured.
If the open access points are then closed, the interior protection and tilt alarm sensor
are switched on.'yThe indicator lamp extinguishes after the vehicle has been unlocked:
No attempt has been made to tamper with
the vehicle.'yThe indicator lamp flashes after unlocking
until the ignition is switched on, but for no longer than approximately 5 minutes:
The alarm has been triggered.
Tilt
alarm
sensor The incline of the vehicle is monitored.
The alarm system responds, for example, when there is an attempt to steel a wheel or
when towing away.
Interior
movement
detector
To ensure perfect functioning, the windows
and Glass Roof must be closed.
Avoiding
false
alarms
General The tilt alarm sensor and the interior movejment detector may trigger an alarm withoutany unauthorised activity taking place.
Possible situations for an unwanted alarm:'yIn washing bays or car washes.'yIn two-level garages.'yDuring transport via motorail, car ferry ortrailer.'yWhen there are animals in the vehicle.
The tilt alarm sensor and interior protection
can be switched off for such situations.
Switching
off
the
tilt
alarm
sensor
and
interior
movement
detector
Press the button on the remote control
again within 10 seconds, as soon as the
vehicle is locked.
The indicator lamp illuminates for approxij
mately 2 seconds and then flashes again.
The tilt alarm sensor and the interior movejment detector are switched off until the nexttime the vehicle is locked.
Switching
off
the
alarm
'yUnlock the vehicle with the remote control or switch on the ignition, if necessary using
the special ID of the remote control, see
page 51.'yWith Comfort Access:
Fully grasp the door handle on either the
driver door or the front passenger door
while carrying the remote control.Seite 61Opening
and
closingControls61
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Power
windows
Safety
note WARNING
Parts of the body can become trapped
when the windows are operating. There is a
danger of injury or damage to property. When
opening and closing, make sure that the area
of movement of the windows is kept clear'

The window is closed with a restrictedanti-trap mechanism. If the closing force
exceeds a certain value, the closing operaj tion is interrupted.2. Pull the switch past the resistance
point again within approximately 4 seconds and hold it there.
The window is closed without the anti-trap
mechanism.
Roller
sunblinds
Roller
sunblind
for
rear
window
General If the roller sunblinds for the rear window canno longer be moved after a number of operaj
tions in immediate succession, the system is blocked for a limited time to prevent overheatjing. Allow the system to cool down.
The roller sunblind for the rear window cannot
be operated in low interior temperatures.
Retracting
or
extending
the
roller
sunblind
for
rear
window
Press the button.
Glass
Roof,
electrical General
The Glass Roof and the sun blind can be operj ated separately or together with the sameswitch.
Safety
note WARNING
Operation of the Glass Roof can lead to
parts of the body becoming trapped. There is a
danger of injury. When opening and closing,
make sure that the area of movement of the
Glass Roof is free.'

Movement is stopped by pressing switch
upwards.
Comfort opening using the remote control, see page 49.
Comfort closing using the remote control, see
page 49.
Closing using Comfort Access, see page 53.
Comfort
position
If the Glass Roof is not fully opened by autoj matic function, this means comfort position
has been reached. This position minimises
wind noise in the interior.
You can continue the movement by subsej
quently pressing the switch.
After
switching
off
the
ignition
The Glass Roof can still be opened or closed for approximately 1 minute after the ignitionhas been switched off.
Anti-trap
mechanism
General If the closing force exceeds a certain value
when closing the Glass Roof, the closing operj ation is interrupted once the roof reaches thehalf-open position, or it is stopped when closjing from the raised position. Glass Roof isopened slightly.
Closing
without
anti-trap
mechanism
from
open
position
In the event of danger from the outside, proj
ceed as follows:
1.Slide the switch forwards beyond the rej
sistance point and hold it there.
The Glass Roof is closed with a restricted
anti-trap mechanism. If the closing forceexceeds a certain value, the closing operaj tion is interrupted.2.Press the switch forwards once again bej
yond the resistance point and hold until the
Glass Roof closes without the anti-trap
mechanism. Ensure that the closing area is
clear.
Closing
without
anti-trap
mechanism
from
raised
position
If there is a danger from the outj
side slide the switch forwards beyond the resistance point and
hold it there.
The Glass Roof is closed withj
out the anti-trap mechanism.
Initialising
after
power
failure
General
The Glass Roof functions may be restricted afj
ter a power cut during the opening or closing operation.
The system can be initialised under the following conditions.
'yThe vehicle is parked in a horizontal posij
tion.'yThe engine is running.'yThe outside temperature is above
5 

Initialising
the
systemPress the switch upwards and
hold until the initialisation is complete:
Initialisation begins within 15 seconds and is complete
when the Glass Roof is fully closed.Seite 65Opening
and
closingControls65
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AdjustingVehicle
equipment
This chapter describes all standard, national
and special equipment available for the model
series. Therefore equipment which is not inj stalled in your vehicle, for example on account
of the selected optional equipment or the
country specification, may also be described
here. This also applies to safety-relevant funcj
tions and systems. Comply with the relevant
laws and regulations when using the correj
sponding functions and systems.
Safe
seating
position
A sitting position that suitably reflects the rej quirements of the occupants is essential forrelaxed driving with minimum fatigue.
In an accident, the correct seat position plays
an important role. For safe driving, additionally
note the following chapters:'ySeats, see page 66.'ySeat belts, see page 70.'yHead restraints, see page 72.'yAirbags, see page 126.
Seats
Safety
notes WARNING
Adjusting the seat during a journey could
cause the seat to move unexpectedly. You
could lose control of the vehicle. There is a
danger of accidents. Only adjust the seat on
the driver's side when at a standstill.'

Forward/back
Pull the lever and slide the seat in the desireddirection.
After releasing the lever, move the seat gently
forward or back to make sure it engages propj
erly.
Height
Pull the lever and add or remove pressure on
the seat as required.
Backrest
angle
Pull the lever and add or remove pressure on
the backrest as required.
Seat
angle
Pull the lever and move the seat until the dej
sired angle is reached. After releasing the lever, sit on and get up out of the seat to makesure it engages properly.
Electrically
adjustable
seats
General The driver's seat adjustment is saved for thecurrently used profile. When the vehicle is unj locked using the remote control, this position
is called up automatically if the function for thishas been activated, see page 60.
The current seat position can be saved with
the memory function, see page 73.
Overview
1Memory function2Backrest width3Lumbar support4Backrest angle5Forward/back, height, seat angleSeite 67AdjustingControls67
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Forward/back
Press the switch forwards or backwards.
Height
Press the switch up or down. Seat
angle
Tilt the switch up or down.
Backrest
angle
Tip the switch forwards or backwards.
Lumbar
support
The curvature of the backrest can be changed
in such a way that the lumbar region, the lordoj sis, is supported. The upper edge of the pelvisand the spinal column are supported to enjcourage an upright posture.
'yPress the button at the front/
rear:
The curvature is increased/
decreased.'yPress the button at the top/
bottom:
The curvature is shifted upj
wards/downwards.
Backrest
width
General To change the width of the backrest, the sidecushions of the backrest can be adjusted.
Adjusting
'yPress the button at the front:
Backrest width is reduced.'yPress the button at the rear:
Backrest width is increased.Seite 68ControlsAdjusting68
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Seat
heating,
front
Overview
Seat heating
Switching
on Press the button once for each temjperature level.
Maximum temperature is indicated by three
LEDs.
If the journey is continued within about 15 mij nutes after a temporary stop, the seat heating
is automatically activated with the last temperjature set.
Switching
off Press and hold the button until the
LEDs are extinguished.
Entering
in
the
back
Safety
notes WARNING
Risk of entrapment when moving the
seats. There is a danger of injury or damage to
property. Before performing the setting, make
sure that the movement area of the seat is clear.'

Electric
longitudinal
adjustment
Comfort
entry
The comfort entry contains a memory function for the longitudinal and backrest adjustment.1.Pull the lever until it stops.2.Fold the backrest forwards.3.Changing the entrance area:'yPress and hold down the button
until the seat has moved into the
desired position. Releasing stops the movement.'yPress the button briefly. Seat auj
tomatically moves into the end
position. Pressing the button again
stops the movement.
Original
position
1.Move seat in original position:'yHold down the button until the
seat is moved to its original posij
tion. Releasing stops the movement.'yPress the button briefly. The seat
moves into its original position.
Pressing the button again stops the
movement.2.Fold back backrest.Seat
belts
Number
of
seat
belts
and
belt
buckles
For the safety of the vehicle occupants, the vej
hicle is equipped with four seat belts. However,
they can only provide effective protection
when worn correctly.
General Before every journey, make sure that all occujpants have fastened their seat belts. The airj
bags are a complementary safety feature and
not a substitute for the seat belts.
The belt anchorage is suitable for adults of any
stature if the seat is adjusted correctly.
Safety
notes WARNING
Never restrain more than one person
with each seat belt, otherwise the protective effect of the seat belt is no longer guaranteed.
There is a danger of injury or even death. Only
restrain one person with each seat belt. Do not allow infants and children to travel on the lap of
another occupant. Instead, secure the infant or
child in a child restraint system intended for
this purpose.'