2015 BMW M4 CONVERTIBLE lumbar support

AdjustingVehicle 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.
Sitting safely The ideal seating position can make a vital
contribution to relaxed, fatigue-free driving.
The seating position plays an important role in
an accident in combination with:▷Safety belts, refer to page 55.▷Head restraints, refer to page 56.▷Airbags, refer to page 99.
Seats
Hints Do not adjust the seat while driving
Do not adjust the driver's seat while driv‐
ing, or the seat could respond with unexpected
movement and the ensuing loss of vehicle
control could lead to an accident.◀
Do not incline the backrest too far to the
rear
Do not incline the backrest too far to the rear
while driving, or there is a risk of slipping under
the safety belt in the event of an accident. This
would eliminate the protection normally pro‐
vided by the belt.◀
Keep the movement area unobstructed
When changing the seat position, keep
the seat's area of movement unobstructed;
otherwise, people might get injured or objects
damaged.◀
Electrically adjustable seats
At a glance1Seat and mirror memory2Backrest width3Lumbar support4Backrest tilt5Forward/backward, height, seat tilt
General information
The seat setting for the driver's seat is stored
for the profile currently in use. When the vehi‐
cle is unlocked via the remote control, the po‐
sition is automatically retrieved if the Function,
refer to page 43, is activated for this purpose.
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Adjustments in detail1.Forward/back.2.Height.3.Seat tilt.4.Backrest tilt.Thigh support
Pull the lever at the front of the seat and adjust
the thigh support.
Lumbar support The curvature of the seat backrest can be ad‐
justed in a way that it supports the lumbar re‐
gion of the spine. The lower back and the
spine are supported for upright posture.
▷Press the front/rear section
of the switch.
The curvature is increased/
decreased.▷Press the upper/lower sec‐
tion of the switch.
The curvature is shifted up/
down.
Backrest width
Change the width of the back‐
rest using the side wings to ad‐
just the lateral support.
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What reduces the restraining effect
Avoid wearing bulky clothing, and pull
the shoulder belt periodically to readjust the
tension. Make sure that the belt is not jammed;
otherwise, the belt can be damaged and the
restraining effect is reduced.◀
Buckling the belt
Make sure you hear the latch plate engage in
the belt buckle.
Unbuckling the belt
1.Hold the belt firmly.2.Press the red button in the belt buckle.3.Guide the belt back into its roll-up mecha‐
nism.
Safety belt reminder for driver's and
passenger's seat
The indicator lamp lights up and a sig‐
nal sounds. Make sure that the safety
belts are positioned correctly. The
safety belt reminder is active at speeds above
approx. 6 mph/10 km/h. It can also be activated
if objects are placed on the front passenger
seat.
Damage to safety belts Wear and tear after accidents or when dam‐
aged otherwise:
Have the safety belts, including the safety belt
tensioners, replaced and have the belt anchors
checked.
Check and replace safety belts
This should only be done by your service
center; otherwise, this safety feature might not
work properly.◀
Headrests Removing
The head restraints cannot be removed.
Seat and mirror memory Hints Do not retrieve the memory while driving
Do not retrieve the memory setting while
driving, as an unexpected movement of the
seat could result in an accident.◀
Keep the movement area unobstructed
When changing the seat position, keep
the seat's area of movement unobstructed;
otherwise, people might get injured or objects
damaged.◀
The concept
Two driver's seat and exterior mirror positions
can be stored per profile, refer to page 35, and
called up. Settings for the backrest width and
lumbar support are not stored in memory.
At a glanceSeite 56ControlsAdjusting56
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Everything from A to Z
IndexA ABS, Antilock Brake Sys‐ tem 116
Acceleration Assistant, refer to Launch Control 74
Accessories and parts 7
Activated-charcoal filter 139
Active Blind Spot Detec‐ tion 113
Active M differential 119
Adaptive brake lights, refer to Brake force display 115
Adaptive Light Control 95
Adaptive M chassis 119
Additives, oil 185
Adjustments, seats/head re‐ straints 52
After washing vehicle 205
Airbags 99
Airbags, indicator/warning light 100
Air circulation, refer to Recir‐ culated-air mode 138
Air, dehumidifying, refer to Cooling function 137
Air distribution, manual 138
Air flow, automatic climate control 138
Air pressure, tires 172
Air vents, refer to Ventila‐ tion 139
Alarm system 44
Alarm, unintentional 45
All around the center con‐ sole 16
All around the roofliner 17
All around the steering wheel 14
All-season tires, refer to Win‐ ter tires 177 Alternating-code hand-held
transmitter 142
Alternative oil types 185
Ambient light 97
Antifreeze, washer fluid 70
Antilock Brake System, ABS 116
Anti-slip control, refer to DSC 117
Anti-theft protection, see through-loading sys‐
tem 149
Approved axle load 210
Approved engine oils, see Suitable engine oil
types 185
Arrival time 88
Ash tray 145
Assistance when driving off 120
Attentiveness assistant 115
AUTO intensity 137
Automatic car wash 204
Automatic climate con‐ trol 136
Automatic Curb Monitor 58
Automatic deactivation, front- seat passenger airbags 101
Automatic headlight con‐ trol 95
Automatic locking 43
Automatic recirculated-air control 138
AUTO program, automatic cli‐ mate control 137
AUTO program, intensity 137
Auto Start/Stop function 65
Average fuel consumption 88
Average speed 88
Axle loads, weights 210 B
Backrest curvature, refer to Lumbar support 53
Backrest, width 53
Band-aids, refer to First aid kit 199
Bar for tow-starting/ towing 202
Battery replacement, vehicle battery 195
Battery replacement, vehicle remote control 35
Battery, vehicle 195
Belts, safety belts 55
Beverage holder, cu‐ pholder 153
BMW Assist, see user's manual for Navigation, En‐
tertainment and Communi‐
cation
BMW Driver’s Guide App 6
BMW Homepage 6
BMW Internet page 6
BMW maintenance sys‐ tem 188
BMW M technology 156
Bottle holder, refer to Cu‐ pholders 153
Brake assistant 116
Brake discs, break-in 158
Brake force display 115
Brake lights, adaptive 115
Brake lights, brake force dis‐ play 115
Brake pads, break-in 158
Braking, hints 159
Breakdown assistance 198
Break-in 158
Brightness of Control Dis‐ play 91 Seite 212ReferenceEverything from A to Z212
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Individual settings, refer toPersonal Profile 35
Inflation pressure, tires 172
Info display, refer to On- Board computer 87
Initialize, Tire Pressure Moni‐ tor TPM 104
Instrument cluster 77
Instrument cluster, electronic displays 77
Instrument lighting 97
Integrated key 34
Integrated Owner's Manual in the vehicle 30
Intelligent Emergency Re‐ quest 198
Intelligent Safety 106
Intensity, AUTO pro‐ gram 137
Interior equipment 141
Interior lights 97
Interior lights during unlock‐ ing 37
Interior lights with the vehicle locked 38
Interior motion sensor 45
Interior rearview mirror, auto‐ matic dimming feature 58
Interior rearview mirror, com‐ pass 143
Internet page 6
Interval display, service re‐ quirements 84
Interval mode 69
J Jacking points for the vehicle jack 195
Jump-starting 199
K
Key/remote control 34
Keyless Go, refer to Comfort Access 41 Key Memory, refer to Per‐
sonal Profile 35
Knee airbag 99
L Lamp replacement 190
Lamp replacement, front 191
Lamp replacement, rear 193
Lane departure warning 112
Lane margin, warning 112
Language on Control Dis‐ play 90
Lashing eyes, securing cargo 163
LATCH child restraint sys‐ tem 62
Launch Control 74
Leather, care 206
LED light, bulb replace‐ ment 192
LEDs, light-emitting di‐ odes 191
Length, vehicle 210
Letters and numbers, enter‐ ing 25
Light alloy wheels, care 206
Light control 95
Light-emitting diodes, LEDs 191
Lighter 145
Lighting 94
Lights 94
Lights and bulbs 190
Light switch 94
Load 163
Loading 162
Loading aid 147
Loading, see interior equip‐ ment 147
Lock, door 39
Locking/unlocking via door lock 39
Locking/unlocking with re‐ mote control 37
Locking, automatic 43 Locking, settings 43
Locking via trunk lid 41
Low beams 94
Low beams, automatic, refer to High-beam Assistant 96
Lower back support 53
Low Speed Assistant 72
Lumbar support 53
M
Maintenance 188
Maintenance require‐ ments 188
Maintenance, service require‐ ments 84
Maintenance system, BMW 188
Make-up mirror 145
Malfunction displays, see Check Control 78
Manual air distribution 138
Manual air flow 138
Manual operation, door lock 39
Manual operation, exterior mirrors 58
Manual operation, fuel filler flap 168
Manual operation, Park Dis‐ tance Control PDC 125
Manual operation, rearview camera 127
Manual operation, Side View 130
Manual operation, Top View 131
Manual transmission 71
Marking on approved tires 176
Master key, refer to Remote control 34
Maximum cooling 137
Maximum speed, display 86
Maximum speed, winter tires 177 Seite 216ReferenceEverything from A to Z216
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