installing AC BMW 528i 2000 E39 Workshop Manual

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520-5
Seats
1
4 Release mounting tabs (arrows) and remove switch module.
Front seat, removing and installing
- Turn ignition switch to OFF position.
Remove front and rear rail trim panels:
Raise center of trim panel
(A) to release loclting pin.
Unlock and lift out inner mounting clips tabs
(6).
Slide trim panel off rail (arrow) to remove.
< Remove seat belt mounting fastener (arrow) from seat
frame.

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Seats
< Remove front seat rail fasteners (arrows)
- Remove front seat from car. Headrest may be removed to
provide additional clearance.
NOTE-
Use a blanket to protect the door sill from scuffing by seat
rails
during seat removal.
- Installation is reverse of removal. Use wire ties or equivalent
means to keep seat harness wiring from fraying.
Tightening torques
Front seat to floor
42 Nm (31 ft-lb)
Seat belt end to seat frame
48 Nm (35 ft-lb)
E39 models are equipped with at least three different ver-
sions of rear seats. This manual only covers the standard
seat used in sedan models.
Rear seat cushion and backrest, removing
and installing (sedan only)
4 Pull front of rear seat cushion up to release clips. While hold-
ing front of cushion up, pull cushion forward to remove.

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Seats
Remove left and right side bacltrest mounting fasteners (ar-
row).
Pull up on backrest to detach from top retainers. Slide back-
rest to side to clear seat belts while removing.
NOTE-
If the car is equipped with heatedrearseats, detach electrical
harness
connector(s) as you remove the seat components.
4 When reinstalling, be sure to pull seat belts and buckles (ar-
rows) up through appropriate slots in seat cushion.
Headrest, removing and installing
- Slide headrest as far up as possible.
Press guides (arrows)
back and
Installation is reverse of removal pull
upward to remove

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540 Sunroof
General . . . . . . . . . . . . . . . . . . . . . . . . . . . ,540-2
Sunroof Adjustments. . . . . . . . . . . . . . . .540-2
Sunroof electronic controls, initializing . . . . ,540-2
Sunroof, normalization. . . . . . . . . . . . . . . . . ,540-3
Sunroof, characteristic curve . . . . . . . . . . . .540-3
Sunroof panel, emergency closing . . . . . . . ,540-4
Sunroof, adiustino . . . . . . . . . . . . . . . . . . . . ,540-5
~unroofwitil steel roof panel, adjusting . . . ,540-5
Sunroof with glass roof panel, adjusting . . . ,540-7
Sunroof Components . . . . . . . . . . . . . . 540-8
Sunroof components (glass)
. . . . . . . . . . . . 540-8
Sunroof panel, removing and
installing (steel or glass)
. . . . . . . . . . . . . . . 540-8
Sunroof panel gasket, replacing
(steel or glass)
. . . . . . . . . . . . . . . . . . . . . . . 540-9
Sunroof motor, replacing
. . . . . . . . . . . . . . 540-10

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1 Sunroof
Sunroof assembly removal and installation involves headliner
removal, and is not covered in this manual. After sunroof re-
pairs, be sure to follow initialization and adjustment proce-
dures given earlier.
I Sunroof comDonents
1. Left rubber boot suppori
2. Left upper control rail
3. Left side water channel repair ltit
4. Left lower control rail
5. Left cover
6. Left side slider
7. Cross member
8. Sunroof frame
9. Trim panel
10. Gasket
11. Glass roof cover
m5sm.7 - -.
Sunroof panel, removing and installing
(steel or glass)
4 To remove sunroof panel, open sunroof and remove wind
blocker
by removing Tom screw (arrow) on each side.

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Sunroof
4 Remove three Torx screws (arrows) on each side, and lift
panel out.
- Installation is reverse of removal. Adjust sunroof height and
gap as described earlier. See Sunroof, adjusting.
Tightening torques
Wind blocker to roof (Torx)
1 Nm (9 in-lb)
Sunroof panel to roof (Torx)
6 Nm (4.4 ft-lb)
Sunroof panel gasket, replacing
(steel
or glass)
- Remove sunroof panei. See Sunroof panei, removing and
installing (steel or glass).
Pull old seal from panel.
Coat new seal and channel in sunroof panel with soapy
water.
* Starting at back center of panel, install new seal, taking
care to not pull seal too tightly around four corners of
panel.
- Installation is reverse of removal. Adjust sunroof height and
gap as shown earlier in this repair group. See Sunroof, ad-
justing.
Tightening torques
Wind
bloclter to roof (Torx)
Sunroof panel to roof (Torx) 1 Nm (9 in-lb)
6 Nrn (4.4 ft-lb)

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........... General ........................... .72 0.2 Rear Seat Belt Assembly 720-8
......... Troubleshooting ..................... .72 0.2 Rear seat belt assembly (sedan) 720-8
................ Rear seat belts (sedan) 720-9
... .......... Front Seat Assembly '720-4 Rear seat belt assembly (Sport Wagon) 720-9
Front seat belt tensioner,
......... Rear seat belts (Sport Wagon) 720-10
removing and installing ................ .72 0.4
Front seat belt assembly
.............. .72 0.6
Front seat belt reel. removing and
installing (sedan and Sport Wagon models)
.72 0.6

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- -
Seat Belts
Front seat belt tensioner, removing and
installing
- Disconnect battery negative (-) cable in trunk.
The
front seat belt loclts are equipped with pyrotechnic (ex-
plosive charge) automatic tensioners. These tensioners are
designed to automatically retract and tension the seat belt by
55 mm (approximately 2 inches) in the event of an accident.
CAUTION-
Prior to disconnecting the battery, read the battery discon-
nection cautions given in
001 General Warnings and Cau-
tions.
WARNING-
Pyrotechnic seat belt tensioners are powerful devices and
should be handled with extreme care. Incorrect handling
can trigger the tensioner and cause injury
BMW recommends that all repair or replacement work
on pyrotechnic devices must be carried out by a quali-
fied BMW technician.
Be sure to disconnect the battery and wait
5 seconds
before attempting to work on pyrotechnic devices.
Pyrotechnic devices cannot be repaired. Always re-
place them.
Never treat pyrotechnic components with cleaning
agents or grease.
- Do not expose pyrotechnic components to tempera-
tures above
75% (167°F).
Pyrotechnic components can only be tested electrically
when installedusing the
BMWService Tester (DISplus,
GTI, or MoDiC).
Do not fire a pyrotechnic gas generatorprior to dispos-
al. It must be fired by a special disposal company or
shipped
back to BMW in the packaging of the new com-
ponent.
During body straightening and welding with an electric
arc welder, always disconnect the battery and the con-
nection to the pyrotechnic gas generators.
- Remove front seat as described in 520 Seats.
-

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Seat ~eltsl
< Remove tensioner cover:
Cut wire ties (A).
Release wiring harness from tensioner cover clip (B).
- Release tensioner cover locks (C) and slide cover down to
remove.
- When reinstalling:
Replace wire ties to relieve tension on pyrotechnic belt
ten-
sioner harness connector.
Tightening torques . -
Front seat to floor (M10) 42 Nm (31 it-lb)
Seat belt to seat 48 Nm (35 It-lb)
Tensioner mounting bracitet
to seat rail 24 Nm (18 it-lb)
Tensioner to mounting bracket 48 Nm (35 it-lb)

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I Seat Belts
a
Front seat belt assembly
1. Seat belt buckle
2. Seat belt stop button
3. Seat belt
4. Seat belt height adjuster
5.
6-pillar cross brace
6. Seat belt reel mounting bolt
7. Seat belt anchor mounting bolt
8. Seat belt lock with pyrotechnic
tensioner
9. Tensioner mounting bolt
Front seat belt reel, removing and installing
(sedan and Sport Wagon models)
- Detach battery negative (-) cable in trunk.
~~-~
Prior to disconnecting the battery, read the battery discon-
nection cautions given in
001 General Warnings and Cau-
l tions. I
- Remove front seat as described in 520 Seats
4 Gently pry up front and rear plastic door sill protector strips
to remove.