1998 BMW 740I lumbar support

46n
Seat adjustment Electric power seatsFor maximum safety when adjusting the
seat position, please observe the fol-
lowing:
Never try to adjust your seat while
operating the vehicle. The seat
could respond with unexpected move-
ment, and the ensuing loss of vehicle
control could lead to an accident.
Wear the safety belt firmly against your
body at all times. In the event of a fron-
tal impact, a loose lap belt could slide
over your hips, leading to abdominal in-
jury. In addition, the safety belt's re-
straint effectiveness is reduced if the
belt is worn loosely.
Never ride with the backrest reclined to
an extreme horizontal angle (especially
important for front passengers to re-
member). Keep the backrest relatively
upright to minimize the risk of "sliding
under" the safety belt and sustaining in-
jury in an accident.
Do not slide the seats to the rear when
the vehicle is at an extreme angle (on
garage ramps or steep slopes, for in-
stance), to prevent the shoulder strap's
automatic height adjustment mecha-
nism from disengaging.<
1 Tilt angle
2 Forward - backward adjustment
3 Cushion height
4 Backrest angle
5 Head restraint height
Adjust the head restraint manually by
tilting it in the desired direction.
Head restraints reduce the risk of
spinal injury in the event of an ac-
cident.
Adjust the head restraint so that its cen-
ter is approximately at the height of the
ear.
For maximum safety, read carefully and
comply with the adjustment instructions
presented here.< 380de023
Correct sitting postureTo reduce strain on the spinal column,
sit all the way back in the seat and rest
your back fully against the backrest.
Ideal sitting posture is achieved with
your head extending from your spine in
a straight line.
For long-distance driving, you may wish
to increase the backrest tilt-angle
slightly to reduce muscular tension.
Please remember that you should al-
ways remain able to grasp the entire
periphery of the steering wheel without
straightening your arms.Lumbar supportRefer to the BMW comfort seat in the
following column.

47n
RepairsIndexOverview Controls Car care Technology Data
BMW comfort seat
*
This seat allows you to make additional
adjustments for
1 Lumbar support
2 Shoulder supportLumbar supportYou can adjust the backrest's contour
for additional support in the curvature
of your spine's lumbar region.
The upper hips and spinal column re-
ceive supplementary support to help
you maintain a relaxed, upright posture.
>Press front/rear of switch:
Increase/decrease curvature.
>Press the upper/lower end of the
switch:
Increase the upper/lower curvature.380de024
Shoulder supportPress the rocker switch: The support
angle of the upper backrest section is
adjusted.
You can use the adjustable upper back-
rest for supplementary support in the
shoulder region. This provides a relaxed
driving position and helps relieve stress
on the shoulder muscles.
To obtain an optimal seating posture,
we recommend:
Driver's side and front passenger's
side:
1 Adjust the upper backrest section
to its extreme rear position
2 Adjust to the optimal seat position as
described on page 46
3 Bring the upper backrest section for-
ward until your shoulders enjoy firm
support.380de064
Front passenger's seat adjusted for re-
laxed traveling:
1 Adjust the upper backrest section to
its extreme rear position
2 Increase the seat cushion tilt
3 Tilt the backrest more
4 Bring the upper backrest section
forward.
Make corrections in the forward-
backward adjustment of the seat
to ensure that the safety belt still fits
firmly against your body. If you do not
do this, the protection provided by the
safety belt may be reduced.<
When you are adjusting the seat, select
a position in which you remain as far
from the instrument panel as possible.

48n
BMW contour seat
* BMW active seat
* Rear power seat
*
In addition to the adjustments offered
by the electric power seat, there are ad-
justments for thigh support, shoulder
support and lumbar support.Thigh supportPress the switch (arrow) to make ad-
justments.Shoulder supportRefer to BMW comfort seat on the pre-
vious page.Lumbar supportRefer to BMW comfort seat on page 47.380de066
Actively changing the surface of the
seat helps to prevent muscle tension,
back pain in the lumbar region, and
symptoms of fatigue.
To activate this feature, press the but-
ton (arrow).
For more details, please refer to the
section headed "Advanced technol-
ogy" on page 186.380de627
1 Backrest angle
2 Head restraint height
3 Lumbar support
The head restraint extends automati-
cally whenever a passenger fastens the
safety belt at one of the rear seating po-
sitions.
Correct head restraint height with
switch 2.
For information on the lumbar support,
refer to the BMW comfort seat on
page 47.380de025

51n
RepairsIndexOverview Controls Car care Technology Data
Mirrors Seat, mirror and steering wheel memoryLighted vanity mirrorFold down the sun visor and slide the
cover panel to the side as required.
The mirror lamps operate in ignition key
positions 1 and 2.Sun visorsThese can be folded down toward the
windshield or swiveled out against the
side windows.380de670
You can store and call up three different
seat, exterior mirror and steering wheel
positions.
The illustration shows the buttons on
the driver's door, for making these posi-
tion adjustments.
The adjustment for the lumbar
support is not in the stored in the
memory.< To store1 Turn the ignition key to position 1 or 2
2 Adjust for the preferred seat, exterior
mirror and steering wheel positions
3 Press the
M
EMORY button: The indi-
cator lamp in the button lights up
4 Press memory button 1, 2 or 3, as de-
sired: The indicator lamp goes out.
380de032
To select a stored settingDriver's door open after unlocking or
ignition key in position 1:
>Briefly press memory button 1, 2 or 3,
as desired.
Movement stops immediately when
one of the seat-adjustment or mem-
ory buttons is activated during the
adjustment process.
With driver's door closed and ignition
key either removed or in position 0 or 2:
>Maintain pressure on desired mem-
ory button 1, 2 or 3 until the adjust-
ment process is completed.
If you press the
M
EMORY button acci-
dentally: Press the button a second
time, the indicator lamp goes out.
Do not call up a position from the
memory while the vehicle is mov-
ing. There is a risk of accident from un-
expected movement of the seat or
steering wheel.<

Everything from A to ZHeadlamp flasher68
Headlamp washer
system142
Headlamp washers69
Heated seats106
Heated steering wheel106
Heating and ventilation100
Heating during a stop104
Height195
HiFi system187
High beam headlamps,
bulb replacement164
High beams68
Hood release137
Horn23IIce warning72
Ignition key30
Ignition switch59
Independent ventilation
system107
Indicator lamps20
Inflation pressures26,132
INSPECTION74
Instrument cluster18
Instrument lighting96
Integrated Universal Remote
Control108
Interior door handles,
lighted36,96
Interior lamps32,97Interior lamps, bulb
replacement167
Interior lamps,
radio remote control34
Interior motion sensor40
Interior rearview mirror,
automatic dimming50
Intermittent wipe switch68
JJump starting179KKey Memory53
Keys30
Kickdown63,66LLashing eyes39,118
Leather care154
Length195
Level control system148
License plate lamps, bulb
replacement166
Light switch96
Lighted exterior door handles
32,33
Lighted interior door handles
36,96
LIGHTS ON warning96
Limit87
Loading118Load-securing devices118
Locking and unlocking the
doors32
Locks, care128
Low beam headlamps, bulb
replacement164
Low beams96
Low-fuel warning lamp73
Lug bolts171
Luggage compartment 37, 39
Nets39
Luggage compartment
lamps, bulb
replacement167
Luggage compartment lid 37
Luggage compartment lid,
Automatic Soft-Close38
Luggage compartment lid,
manual operation37
Luggage compartment
nets39
Luggage compartment,
emergency release37
Luggage compartment,
locking separately37
Luggage compartment, radio
remote control34
Luggage rack118
Luggage straps39
Lumbar support47
MMaintenance74,149
Malfunction displays75
Manually controlled
recirculated-air103
Master key30
Memory51,53
MFL (Multi-function steering
wheel)23
Microfilter105
MID (Multi-Information
Display)78
Mirror defrosting50
Mirror memory51
Mirrors50
Modifications,
technical6,157
Multi-function armrest112
Multi-function steering wheel
(MFL)23
Multi-Information Display
(MID)78NNew transmitter, radio
remote control168
Nozzles100OOBD connector158
Odometer72
Oil additives143