1998 BMW 528i seats

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330-1 1
Rear Suspension
Coil spring, removing and installing
Raise car and remove rear wheels.
WARNING-
Make sure the car is firmly supported on jack stands de-
signed for the purpose. Place jack stands underneath struc-
tural chassis points. Do not place jack stands under
suspension parts.
- Remove brake caliper and brake disc. Hang brake caliper
aside with stiff wire. Do not disconnect
bralte fluid hose. See
340 Brakes.
- Remove exhaust system. See 180 Exhaust System.
- Disconnect driveshafl from final drive. See 260 Driveshaft.
- Detach parking bralte cables from mounting bracltets on sub-
frame.
< Support final drive unit from below using transmission jack
and
BMW special tool 33 4 390 or equivalent.
Remove rear suspension
subframe mounting bolts (arrows).
Lower rear
subframe until coil springs can be removed.
When reinstalling springs, replace upper and lower spring
pads if necessary.
Slowly lift suspension
back into position, making sure coil
springs are correctly seated in upper and lower spring seats.
Install and tighten
subframe mounting bolts. Note that on
each bolt, rubber-coated detent plate (arrow) must be in-
stalled at rear in driving direction
- Remainder of installation is reverse of removal
Tightening torques Road wheel
to hub 12OilO Nm (89i-7 ft-lb)
Subframe to body 163 Nm (120 ft-lb)

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330-28
Rear Suspension
4 To install, jack subframe into position. Install and tighten sub-
frame mounting bolts. Note that on each bolt, rubber-coat-
ed detent plate
(arrow) must be installed at rear in driving
direction.
Tightening torques
Rear
subframe to body (M12) 163 Nm (120 ft-lb)
- Remainder of installation is reverse of removal, noting the fol-
lowing.
Make sure long lower strut bushing fits in hole in wheel
bearing carrier.
111 0 Tighten suspension arm and shoclc absorber fasteners to
502330036 final torque only afler vehicle has been lowered and sus-
pension has settled.
Have car professionally aligned when job is complete
Tightening torques
ABS pulse sensor to wheel bearing carrier 8 Nrn (6 ft-lb)
Brake rotor to hub
16 Nm (12 ft-lb)
Driveshaft
CV joint to final drive flange
- MI0 (Tow bolts) 70 Nm (51 ft-lb)
MB (compression nut) 32
Nm (24 ft-lb)
Rear brake pad
carrler (caliper) to wheel 65 Nm (48 ft-lb)
bear~ng carrler
Rear strut to
wheel bearlng carrler 127 Nm (94 ft-lb)
Road wheel to hub
120210Nrn
(89 57 ft-lb)
Rear axle assembly, removing and
installing (Sport Wagon models)
Incaseof damage to thesubframe, or if apressed-in bushing is
worn, remove
subframe by removing complete axle assembly.
In Sport Wagon models with conventional coil spring, lower
subframe slowly, making sure rear springs stay on spring
seats.
In models with air suspension
(EHC), disable the air supply
pump, deflate the air springs and disconnect them from the
wheel carriers before lowering the subframe.
- Raise car and remove rear wheels.
WARNING-

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330-30
I Rear Suspension
Remove right and left lower strut mount bolts (arrow).
Remove rear suspension subframe by removing 4 mounting
bolts
(arrows).
Carefully lower rear suspension subframe away from body to
remove.
To install, jack
subframe into position. Install and t~ghten sub-
frame mounting bolts. Note that on each bolt, rubber-coat-
ed detent plate
(arrow) must be installed at rear in driving
direction.
Models
w~th coil springs: Fit springs correctly in lower
spring seats.
Models with air suspension: Fit eccentric lug at bottom of
air
sprlng in recess of wheel carrier spring seat.
Tightening torques
-
Air spring to wheel bearing carrier 20 Nm (1 5 ft-lb)
Rear subframe to body (M12) 163 Nm (120 ft-lb)
-

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4 Disconnect and remove speed sensor electrical harness (ar-
row) from retaining mounts. (Lefl front wheel shown).
- During installation, apply thin coat of StaburagsBNBU 12/K
or equivalent grease to speed sensor and housing.
- Installation is reverse of removal.
Tightening torque
ABS wheel speed sensor to steering knuckle or 8 Nm (6 It-lb)
rear wheel bearing carrier
ABS impulse wheel
The front and rear impulse wheels are integral with the inner
wheel bearing seal and not available as separate part. See
310 Front Suspension or 330 Rear Suspension for wheel
bearing replacement procedures.
DSC lateral acceleration or rotational rate
(yaw) sensor, replacing
DSC system on 1998 cars (Bosch DSC Ill v. 5.3): Lateral ac-
celeration sensor and rotational rate (yaw) sensor are sepa-
rate units, both mounted underneath or in front of driver's
seat.
DSC system on 1999 and later cars (Bosch DSC
Ill v. 5.7):
Lateral acceleration sensor and rotational rate (yaw) sensor
are combined into one unit, located under driver's seat.
- Remove driver's seat. See 520 Seats.
- Lateral acceleration sensor (1 998 models): Remove lower
lefl door pillar trim (driver's
kick panel) to access sensor. Pull
up carpet as necessary to reach sensor harness connector
or fasteners.
4 Rotational rate (yaw) sensor (1998 models): Remove plastic
trim at door sill to access sensor (arrow). Pull up carpet and
move insulation forward as necessary to reach sensor har-
ness connector or fasteners.
- Combined lateral acceleration / rotational rate (yaw) sensor
(1 999 and later models): Remove plastic trim at door sill to
access sensor. Pull up carpet and move insulation forward as
necessary to reach sensor harness connector or fasteners.
- Disconnect electrical harness connector at sensor.
- Combined sensor (1 999 and later models): Remove sensor
bracket mounting screws.

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400 Body-General
........................ General ........................... .40 0.2 Roof paddin~ 400-7
Body Assembly ................... .40 0.2
Body dimensions (in inches)
............ .40 0.2
Bodyshell
........................... 400-3
Exterior and aerodynamics
............. .40 0.3
Sport Wagon ...................... .40 0.4
Tailgate
............................ .40 0.5
Tailgate lock system
.................. .40 0.5
Rear wiper system ................... .40 0.6
Antenna and sound system ............ .40 0.6
Safety and Security Features ....... .40 0.7
Safety cage
......................... .40 0.7
Door locks and door handles
........... .40 0.7
.
........................... Seat belts 400-7
Airbags ............................ 400-8
Battery safety terminal (BST)
........... 400-9
Security
............................ 400-9
Interior Features ................... 400-9
............................. Seats 400-10
Instruments and controls .............. 400-10
Central body electronics
.............. 400-1 1
Heating and Air
Conditioning (IHKA)
............... 400-12

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400-9
Body-General
Battery safety terminal
(BST)
4 Starting with 1999 models (9198 production and later), a py-
rotechnic (explosive charge) device automatically discon-
nects the battery positive terminal during impacts. Key
features,
like power windows and door locks, remain opera-
tional.
Security
Electronic immobilization (EWS)
Ignition key transponder signal All
E39 vehicles incorporate an electronic immobilization sys-
tem known as EWS. This svstem uses a wireless comrnuni-
cation link between a transponder chip in the ignition key and
the ring antenna surrounding the ignition switch. The EWS
control module blocks the starting of the vehicle unless the
correct coded ignition key is used.
NOTE-
Electronic immobilization is sometimes referred to as the
driveaway protection system.
Antitheft alarm (DWA)
This is adealer-installed option for which the E39 vehicles are
factory-wired. When armed, the system monitors door
loci(
contacts and trunk and engine hood locks and sounds a siren
if it detects tampering.
E39 interiors have a unique character, with a combination
of
sporty features and innovativedesign. All body versions were
made in a wide choice of interior and exterior colors. New col-
ors with matching leather or leatherette upholstery were intro-
duced for each model year.
Driving
comfort is enhanced by power steering, tilt steering
wheel, height-adjustable front seats, and electrically adjust-
able and heated rear-view mirrors. Inside the car there are
reading lights at four seating positions.

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400-1 0
Body-General
Seats
4 Anatomically correct seats are constructed from polyure-
10 way seat adjustment thane foam
containing areas or "zones" of different firmness.
They offer good lateral support without constricting the occu-
pant.
The seats have a passive internal ventilation system: Cylin-
drical cavities within the cushions and backrests generate a
pumping effect as the ride motions cause occupant motion.
This
helps remove moisture and feeds fresh air into the seats.
Other features of the seating system:
The seat bases have steel springs for added support and
strength.
The seat control switches are along the outside edge of
the
seat.
Heated seats are an option in all models
In cars equipped with seat position memory, three different
seat confiaurations can be memorized by the seat control
module(s): Seat memory coordinates with outside mirror
memory. These functions are controlled by the seat mem-
ory
module(s).
* For security reasons, the release lever to fold the rear seat
backrest forward is installed in the trunk.
Sport Wagon models: Rear seat
baclts are split 60140, with
the center armrest on the left seat back.
The center armrest incorporates a non adjustable head-
rest. When folded down, the armrest opens out with
cup-
holders and a storage compartment. See 520 Seats for
more details.
instruments and controls
Everything in the interior passengercompartment essential to
the driver is logically grouped and easy to reach. All instru-
ments and controls have been arranged ergonomically and
are fully integrated into the overall design of the vehicle.
Tilt-telescopic steering wheel has
30 mm (1.2 in) of vertical
and longitudinal adjustment.
Multifunction steering wheel contains two
ltey pads con-
taining controls for the sound system, telephone and
cruise control.
Padded dashboard houses the instrument cluster and the
ventilation and heating system.

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Instrument cluster
Instrument cluster uses large easy-to-read analog instru-
ments and is removable as a unit without removing the dash-
board. On-board computer and Check Control functions are
integrated into the instrument cluster displays.
Service Interval Display
Service Interval Display calculates vehicle service needs
based on current driving patterns, and indicates to the driver
when the car requires
service
On-board navigation
An integrated on-board navigation system, based on Global
Positioning System (GPS) technology, is optionally available
on
E39 cars. When installed, a multifunction monitor is includ-
ed in the center of the dash above the radio. in addition to dis-
playing navigation system information, this monitor accesses
On-Board Computerfunctions, audiosystem controls, mobile
phone dialling and memory, and automatic ventilation.
Park Distance Control (PDC)
Park Distance Control (PDC) is an optional system which
uses ultrasonic sensors in the rear bumper trim to warn the
driver of approaching too close to obstacles when parlting.
Central body electronics
E39 vehicles are equipped with an integrated complex of
electronic modules connected mostly via K-Bus. This system,
called central body electronics (ZKE
Ill), is primarily con-
trolled by the general module (GM
Ill). An overview of ZKE Ill
functions is found in 600 Electrical System-General. Details
of ZKE
Ill functioning is in the following repair groups:
- 512 Door Windows
* 515 Central Locking and Aniti-Theft
520 Seats
a 540 Sunroof
611 Wipers and Washers
620 Instruments