2009 BMW Z4 SDRIVE35I lumbar support

Controls
43Reference
At a glance
Driving tips
Communications
Navigation
Entertainment
Mobility
4Backrest
Lumbar support*
You can also adjust the contour of the backrest
to obtain additional support in the lumbar
region.
The upper hips and spinal column receive sup-
plementary support to help you maintain a
relaxed, upright sitting position.
> Increase or decrease curvature: press the
switch at the front or rear, respectively.
> Shift curvature up or down: press the switch
at the top or botto m, respectively.
Backrest width*
You can change the width of the backrest to suit
your individual preferences by adjusting the lat-
eral-support pads. Press the front or rear end of the switch.
Backrest width decreases or increases
accordingly.
Heated seats*
Press once for each temperature level.
Three LEDs indicate the highest temperature.
To switch off:
Press button longer.
If you continue driving
within approx. the next
15 minutes, the seat he ating is automatically
activated at the previously set temperature.
The temperature is lowered or the heating is
switched off entirely to save on battery power.
The LEDs stay lit.
Seat and mirror memory*
You can store and call up two different combi-
nations of driver's-sea t and exterior-mirror
positions.
Settings for the backrest width and lumbar sup-
port are not stored in memory.

Reference 231
At a glance
Controls
Driving tips
Communications
Navigation
Entertainment
Mobility
Automatic Service Request 184
Automatic transmission with Steptronic 53
– interlock 53,54
– overriding selector lever lock 55
– shiftlock, refer to Changing
selector lever position 54
– sport program 54
– towing 215
– tow-starting 215
AUTO program for automatic
climate control 96
AUX-IN
– port 102
AUX-IN port 158
Average fuel consumption 66
– setting the units 68
Average speed 66
Avoiding unintentional alarms 34
Axle loads, refer to Weights 222
B
Backrest contour, refer to
Lumbar support 43
Backrests, refer to Seat adjustment 42
Backrest width adjustment 43
Backup lamps
– replacing bulb 210
Backup lamps, refer to Tail lamps 210
Band-aids, refer to First-aid
pouch 214
Bar, refer to Towing methods 216
Base plate for telephone or mobile phone
– refer to Snap-in adapter 174
– refer to Snap-in adapter in the center armrest storage
compartment 102
Bass, tone setting 138Battery
212
– charging 212
– disposal 36,212
– jump starting 214
– remote control 28
– temporary power failure 212
Battery for mobile phone 175
Battery renewal
– remote control 36
– remote control for vehicle 36
Being towed 216
Belts, refer to Safety belts 44
Belt tensioner, refer to Safety
belts 44
Beverage holders, refer to Cup holders 103
Blower, refer to Air flow rate 93,96
Bluetooth, activating/
deactivating 166
Bluetooth, refer to separate Owner's Manual
BMW
– car shampoo 207
BMW Assist, activating 180
BMW Assist 178
BMW center 184
BMW Homepage 4
BMW Maintenance System 202
BMW Search 180
BMW webpage 4
Bottle holders, refer to Cup holders 103
Brake
– parking brake 52
Brake assist, refer to Dynamic
Brake Control DBC 78
Brake fluid, refer to Service requirements 69
Brake lamps
– replacing bulb 210
Br
ake pads 110
– breaking in 110
Brake rotors 112
– brakes 110
– breaking in 110 Brakes
– ABS
78
– BMW Maintenance System 202
– breaking in 110
– service requirements 69
Brakes, refer to Braking safely 112
Brake system 110
– BMW Maintenance System 202
– breaking in 110
– disc brakes 112
Breakdown services, refer to Roadside Assistance 213
Breaking in the clutch 110
Breaking in the differential, refer to Engine and
differential 110
Break-in period 110
Brightness of Control Display 76
Bulb changing, refer to Lamps and bulbs 208
Button for starting the engine,
refer to Start/stop button 50
Buttons on the steering wheel 11
Buttons on the steering wheel 11
C
California Proposition 65
warning 6
Call
– accepting 167
– ending 168
– rejecting 168
Calling, refer to Phone
numbers, dialing 168
Can holders, refer to Cup holders 103
Capacities 222
Capacity of the cargo bay 222
Car battery, refer to Vehicle
battery 212
Car care, refer to Care 204

Reference 237
At a glance
Controls
Driving tips
Communications
Navigation
Entertainment
Mobility
Launch Control58
Leather care 206
LED Light-emitting diodes 208
Length, refer to
Dimensions 221
License plate lamp, replacing bulb 211
Light-alloy wheels 206
Light-emitting diodes LED 208
Lighter 104
– connecting electrical
appliances 104
Lighting
– instruments 90
– lamps and bulbs 208
– vehicle, refer to Lamps 88
Light switch 88
Limit, refer to Speed limit 74
Load securing equipment, refer to Securing cargo 114
Lockable lug bolts, refer to Lug bolt lock 211
Lock buttons, doors, refer to
Locking 32
Locking
– adjusting confirmation
signal 31
– from inside 32
– from outside 30
– without remote control, refer to Convenient access 35
Locking and unlocking doors
– confirmation signals 31
– from inside 32
– from outside 29
Low-beam headlamps 88
– automatic 88
Lower back support, refer to
Lumbar support 43
Lug bolt lock 211
Luggage compartment lid 32
– convenient access 35
– emergency release 33
– opening from inside 33
– opening from outside 33
– remote control 30
Lumbar support 43 LW, waveband
141
M
M+S tires, refer to Winter
tires 196
Maintenance, refer to Service Booklet
Maintenance system 202
Malfunction
– automatic transmission with
Steptronic 55
– tires 81
Malfunction warnings, refer to Check Control 73
Managing music 156
Manual air distribution 93
Manual car wash 205
Manual mode, automatic
transmission with
Steptronic 54
Manual operation
– door lock 32
– driver's door 32
– fuel filler door 188
– transmission lock 58
– transmission lock, automatic transmission 55
Manual transmission 53
Map display 130
Map for navigation
– changing scale 130
– entering destination 124
– interactive map 124
Master key, refer to Remote control with integrated
key 28
Maximum cooling 96
Maximum speed
– with winter tires 196M dual clutch transmission
with Drivelogic
– Launch Control 58
– manually releasing transmission lock 58
– neutral 57
– reverse gear 57
Measurements, refer to
Dimensions 221
Memory, refer to Seat and mirror memory 43
MENU button 16
Menus, refer to iDrive 16
Messages 170
Microfilter
– BMW Maintenance
System 202
– for air conditioner 94
– for automatic climate
control 97
Microfilter/activated-charcoal filter
– BMW Maintenance System 202
Mirror dimming feature 46
Mirrors 45
– automatic curb monitor 46
– exterior mirrors 45
– heating 46
– interior rearview mirror 46
–
memory, refer to Seat and
mirror memory 43
Mobile phone
– adjusting volume 167
– connecting, refer to Mobile phone, pairing 164
– installation location, refer to
Center armrest 102
– operation via iDrive 167
– pairing 164
– refer to separate Owner's Manual
Mobile phone, installation
location, refer to Center
armrest 102
Mobile phone, refer to
Telephone 164