2009 BMW 335I XDRIVE CONVERTIBLE lumbar support

Adjustments
44 1Longitudinal direction
2Height
3Angle
4Backrest
5Convertible: head restraints
Coupe: the head restraints are adjusted manu-
ally, refer to Head restraints below.
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 bottom, 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 accord-
ingly.
Longitudinal adjustment from outside/
behind*
To move the front seats forward or backward
from outside or from one of the rear seats: with
the door open, press the front end 1 or rear end
2 of the switch.
Head restraints
A correctly adjusted head restraint reduces the
risk of neck injury in the event of an accident.
Adjust the head restraint in such a way
that its center is at approx. ear level. Oth-
erwise, there is an increased risk of injury in the
event of an accident. Only remove a head
restraint if no one will be sitting on the seat in
question. Reinstall the head restraint before

Reference 243
At a glance
Controls
Driving tips
Communications
Navigation
Entertainment
Mobility
AUTO program for automatic
climate control98
AUX-IN
– port106
AUX-IN port163
Average fuel consumption71
– setting the units72
Average speed71
Avoid highways in
navigation135
Avoiding unintentional
alarms33
Axle loads, refer to
Weights235
B
Backrest contour, refer to
Lumbar support44
Backrests, refer to Seat
adjustment43
Backrest width adjustment44
Back seats
– refer to Rear seats45
Backup lamps
– replacing bulb220,221
Backup lamps, refer to Tail
lamps220
Bag holder110
Band-aids, refer to First-aid
pouch225
Bar, refer to Towing
methods227
Base plate for telephone or
mobile phone
– refer to Snap-in adapter179
– refer to Snap-in adapter in
the center armrest storage
compartment106
Bass, tone setting144
Battery222
– charging222
– disposal35,222
– jump starting225
– remote control26
– temporary power failure222
Battery for mobile phone179Battery renewal
– remote control35
– remote control for vehicle35
Being towed227
Belt hand-over49
– pinch protection system49
Belts, refer to Safety belts48
Belt tensioner, refer to Safety
belts48
Beverage holders, refer to
Cup holders107
Blinds, refer to Roller sun
blinds105
Blower, refer to Air flow
rate99
Bluetooth, activating/
deactivating172
Bluetooth, refer to separate
Owner's Manual
BMW
– car shampoo215
BMW Assist, activating184
BMW Assist183
BMW center188
BMW Homepage4
BMW Maintenance
System211
BMW Search184
BMW webpage
4
Bottle holders, refer to Cup
holders107
Brake assist, refer to Dynamic
Brake Control DBC83
Brake fluid, refer to Service
requirements73
Brake force display89
Brake lamps
– brake force display89
– replacing bulb220,221
Brake pads116
– breaking in116
Brake rotors118
– brakes116
– breaking in116Brakes
– ABS83
– BMW Maintenance
System211
– brake force display89
– breaking in116
– parking brake56
– service requirements73
Brakes, refer to Braking
safely118
Brake system116
– BMW Maintenance
System211
– breaking in116
– disc brakes118
Breakdown services, refer to
Roadside Assistance224
Breaking in the clutch116
Breaking in the differential,
refer to Engine and
differential116
Break-in period116
Brightness of Control
Display80
Bulb changing, refer to Lamps
and bulbs218
Button for starting the engine,
refer to Start/stop button55
Buttons on the steering
wheel11
C
California Proposition 65
warning6
Call
– accepting173
– ending174
– rejecting174
Calling, refer to Phone
numbers, dialing174
Can holders, refer to Cup
holders107
Capacities235
Capacity of the cargo bay235
Car battery, refer to Vehicle
battery222
Car care, refer to Care213

Reference 249
At a glance
Controls
Driving tips
Communications
Navigation
Entertainment
Mobility
K
Key, refer to Integrated key/
remote control26
Keyless go, refer to
Convenient access34
Keyless opening and closing,
refer to Convenient
access34
Key Memory, refer to Personal
Profile26
Kick-down58
– automatic transmission with
Steptronic58
Knock control193
L
Lamps
– automatic headlamp
control93
– parking lamps/low beams93
Lamps and bulbs, replacing
bulbs218
Language, changing on
Control Display80
Lap-and-shoulder belt, refer
to Safety belts48
Lashing eyes, refer to
Securing cargo120
Last destinations128
LATCH child-restraint fixing
system53
Leather care215
LED Light-emitting
diodes218
Length, refer to
Dimensions233
License plate lamp, replacing
bulb222
Light-alloy wheels215
Light-emitting diodes
LED218
Lighter108
– connecting electrical
appliances108Lighting
– instruments95
– lamps and bulbs218
– vehicle, refer to Lamps93
Light switch93
Limit, refer to Speed limit79
Load119
Load securing equipment,
refer to Securing cargo120
Lock buttons, doors, refer to
Locking31
Locking
– adjusting confirmation
signal29
– from inside31
– from outside28
– without remote control, refer
to Convenient access34
Locking and unlocking doors
– confirmation signals29
– from inside30
– from outside27
Low-beam headlamps93
– automatic93
Lower back support, refer to
Lumbar support44
Luggage compartment lid31
– convenient access34
– emergency release32
– locking or unlocking
separately31
– opening from inside31
– opening from outside
31
– remote control28
Luggage rack, refer to Roof-
mounted luggage rack121
Lumbar support44
LW, waveband147
M
M+S tires, refer to Winter
tires205
Maintenance, refer to Service
Booklet
Maintenance system211Malfunction
– automatic transmission with
Steptronic59
– tires86
Malfunction warnings, refer to
Check Control77
Manual car wash214
Manual mode, automatic
transmission with
Steptronic58
Manual operation
– door lock30
– driver's door30
– fuel filler door192
– glass roof38
– transmission lock, automatic
transmission59
Manual transmission57
Map display137
Map for navigation
– changing scale137
– entering destination130
Master key, refer to Remote
control with integrated
key26
Maximum cooling98
Maximum speed
– with winter tires205
Measurements, refer to
Dimensions233
Memory, refer to Seat and
mirror memory47
MENU button16
Menus, refer to iDrive16
Microfilter
– BMW Maintenance
System211
– for automatic climate
control100
Microfilter/activated-charcoal
filter
– BMW Maintenance
System211
Microphone
– telephone14
– voice commands14
Mirror dimming feature50