warning BMW 528i 1997 E39 Workshop Manual

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I Exterior Trim, Bumpers
Tightening torques Impact absorber to chassis
(M8 nut) 20 Nm (15 ft-lb)
Impact absorber to chassis
(M6 nut) 9 Nm (80 In-lb
Bumper bracket to impact absorber 45 Nm (32 ft-lb)
(MI0 bolt)
Front bumper height, adjusting
- A 14 mm allen socket is needed to make adjustments
- Raise and properly support vehicle.
WARNING-
Make sure that the car is firmly supported on jackstands de-
signed for the purpose. Place the jack stands beneath a
structural chassis point.
Do not place jack stands under sus-
pension parts.
4 Using a 12-inch extension and a 14 mm Allen socket, turn ad-
justing collar
clocl~wise or counterclocl~wise as needed to
change height of adjusting collar.
4 Distance (A) must be the same at all points (A = 5 i- 1 mm
(0.2 to 0.04 in)).
- Reinstall mounting fasteners and check bumper height
Tightening torques Front bumper to bumper
20 Nm (15 ft-lb)
bracltet (M8 nuts)
Impact absorber
to chassis 9 Nm (80 in-lb
(M6 nuts)
Front bumper bracket to impact
absorber
(MI0 bolts)
41 Nm (31 ft-lb)

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51 2-2
I Door Windows 1
This repair group covers door glass, window regulator and
power window motor repair information.
CA U JIO&
All E39 models are equipped with side-impact airbags in the
front doors. Some models are also equipped with
airbags in
the rear doors. Be sure to read the
airbag warnings and cau-
tions in 721
Airbag System (SRS).
Electric window switch replacement is covered in 612
Switches.
The windshield, rear window, fixed rear doorglass, and cargo
compartment glass (Sport Wagon only) are bonded using
special adhesives and tools. It is recommended that bonded
glass replacement be done by an authorized
BMW service fa-
cility or an automotive glass installer.
Special tools
Some window repair operations require special tools.
Power windows
- Power window features in E39 models include:
Control of the front and rear door window motors is carried
out directly by the General Module (GM
Ill).
One-touch operation in both directions on all four windows.
Cable type window regulator used for all door windows.
. Anti-trap protection provided by pressure sensitive finger
guard.
Right front and each rear door has a single window switch
located in door handle trim.
Rear door window switches can be deactivated by press-
ing child lock-out switch in the driver's window switch block.
Convenience closinglopening of the windows from driver's
loci( cylinder or convenience opening only from remote un-
lociting feature (FZV) remote key.
Window (FZV) operation can be owner customized with
Car Memory function. See 515 Central Locking and Anti-
Theft.
After ignition is switched off, electric windows can be oper-
ated until a door is opened or until
I6 minutes has elapsed.
The GM
IiI bases window motor end position on current
draw (load). There is a maximum window motor run time of
6 seconds. The motor is then switched off even if the end
position load sensor fails.

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Door windows1
Window motor limit stop function
If repeated window activation (upldown cycles) exceeds one
minute, the
GM Ill deactivates the internal relays and disre-
gards any further
upldown requests. The GM Ill provides mo-
tor activation after a short duration but not for the full one
minute monitoring cycle.
The
GM Ill monitors the number of times a window motor is
activated. It counts each cycle and stores the number in
memory. Afler the stop function limit is reached and the win-
dow motor is deactivated, the
GM Ill slowly reverses the
stored count of activation until the stored number equals
0,
thus allowing the window motor to cool down.
WARNING-
* Always wear hand and eye protection when working with
brolen glass.
If a window is brolen, all of the glass bits should be
vacuumed out of the door cavity. Use a blunt
so-ewdi-iv-
er to clean out any remaining glass pieces from the
window guide rails.
When servicing the door windows, the harness con-
nector to the window regulator should always be dis-
connected to prevent pinching fingers in the moving
window mechanism.
Sedan and Sport Wagon doors are similar. Use the following
procedures for window service on these models.
WARNING-
E39 cars are iitted with side-impact airbags in the front
doors. Some are equipped with
airbags in the rear doors
as well. When
servicing the door windows on cars with
side-impact airbags, always disconnect the negative
(-)
battery cable. See 721 Airbag System (SRS) for cau-
tions and procedures relating to the
airbag system.
* Prior to disconnecting the battery, read the battery dis-
connection cautionsgiven
001 General Warnings and
Cautions.

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51 2-8
Door Windows
Door window, adjusting
Whenever the door window or window regulator is removed,
window adjustment should be checked. The glass should
contact the top of the window squarely and should seat
against the window seal uniformly.
NOTE-
If the window does not contact the window seal uniformly,
wind noise or water infiltration may result.
- Remove door panel as described in 411 Doors.
- Disconnect negative (-) cable from battery. Remove airbag
unit and vapor barrier from door. See 721 Airbag System
(SRS).
WARNING-
Prior to disconnecting the batteg read the battery discon-
nection cautions given in
001 General Warnings and
Cautions.
Longitudinal adjustment
- Adjustments are made with window in open position.
Loosen window guide rail mounting nuts (arrows), but do not
remove.
Slide window glass in longitudinal direction to adjust
Tighten guide rail nuts.
Tightening torque
Window regulator guide rail to door
10 Nrn (89 in-ib)

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512-9
Door Windows
Vertical adjustment
- Adjustments are made with window in open position
4 Loosen window clamping fasteners (arrows), but do not
remove.
Adjust rear clamp and tighten fastener.
Tighten front clamp fastener.
4 Raise door window up to stop:
Check gap (A) at window front edge,
Checlc gap (5) at window top edge.
NOJE-
Measure window frame between door window edge and
panel.
Front window gap settings
Front of window
(A) 5.4 mm (0.21 in)
Top of window
(6) 10 mm (0.39 in)
Tightening torque Window regulator guide
rail to door 10 Nm (89 in-lb)
Door window, removing and installing
- Remove door panel as described in 411 Doors
- Reconnect window switch and lower window down to conve-
nient height and disconnect window switch.
- Disconnect negative (-) cable from battery, then remove air-
bag unit and vapor barrier from door. See 721 Airbag Sys-
tem (SRS).
WARNING -
Prior to disconnecting the battery, read the battery discon-
nection cautions given
in 001 General Warnings and
Cautions.

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Door Windows
Tilt window glass carefully inside door cavity and lift out of
door.
Installation is reverse of removal.
Replace plastic window retainers once glass is inside door.
Use new mounting bolts when reinstalling side-impact
air-
bag to door.
Adjust window as described earlier,
Sedan and Sport Wagon doors are similar. There are two win-
dow rails in each front window regulator, only one in the rear.
Otherwise the front and rear regulators are similar.
WARNING-
E39 cars are Wed with side-impact airbags in the front
doors. Some are equipped with
airbags in the rear doors
as well. When servicing the door windows on cars with
side-impact airbags, always disconnect the negative
(-)
battery cable. See 721 Airbag System (SRS) for cau-
tions and procedures relating to the
airbag system.
Prior to disconnecting the battery, read the battery dis-
connection cautions given at the front
001 General
Warnings and Cautions.
NOTE-
Because window operation is electronically controlled, a win-
dow motor does not have mechanical endpositions. For this
reason it can be removed and installed with the window in
any position and does not need reinitialization.
Front window regulator removing and
installing
NOTE-
BMW recommends removing the window regulator and mo-
tor as one unit, then separating the two on the bench.
- Remove front door panel as described in 411 Doors.
- Disconnect negative (-) cable from battery, then remove air-
bag unit and vapor barrier from door. See 721 Airbag Sys-
tem (SRS).

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I lnterior Trim
This repair group covers interior trim removal and installation
procedures.
- Refer to the following repair groups for additional information:
250 Gearshift Linkage
41 1 Doors (interior door panels)
@ 612 Switches
620 Instruments
640 Heating and Air Conditioning [IHKA control panel!
650 Radio
721 Airbag System (SRS)
lnterior trim repairs
lnterior trim and finish panels are clipped or screwed into
place. Many of the trim retaining clips are designed
to be used
only once. When removing trim that is held in place with clips,
it is a good idea to have spare clips on hand before beginning
the job.
WARNING-
Special precautions must be observed when servicing the
BMWSupplementai Restraint System (SRS). Serious inju-
ry may result if system service is attempted by persons un-
familiar with the BMW
SRS and its approved service
procedures. BMW
speciiies that all inspection and service
should be performed by an authorized BMW
dealer.
Before performing any work involving airbags, discon-
nect the negative
() battery cable. See 721 Airbag
System (SRS).
Airbags contain a back-uppowersupply within the SRS
control module. A
5 second discharge period should be
allowed after the battery cable has been disconnected.
CAUTION-
* When working on electrical switclies or lights, always dis-
connect the negative
(-) cable from the battery and insu-
late the cable end to prevent accidental reconnection.
a Prior to disconnecting the battery, read the battery dis-
connection cautions given in
W1 General Warnings
and Cautions.
To prevent marring the trim when working on interior
components, work with plastic prying
tools or wrap the
tips of screwdrivers and pliers with tape before prying

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Interior Trim
The E39 dashboard assembly includes the instrument clus-
ter, passenger side
airbag, glove compartment, fuse and re-
lay panel, radio. IHKA control panel oron-board monitor (if
equipped with GPS). The dash is made up of an upper and
lower sections. The lower section must be remove before the
upper section can be removed.
Dashboard removal is a complex operation. Read the proce-
dures through before starting work.
Lower dash panel assembly, removing and
installing
- Disconnect negative (-) cable from battery and cover termi-
nal with
insulating material.
--7
CAUTION-
Prior to disconnecting the battery, read the battery discon-
nectioncautionsgiven atthe irontin001 General Warnings
and Cautions.
- Place steering column in down and extended position.
4 Remove left side foot well panel fasteners (A and B).
< Using a plastic trim tool, gently pry left and right steering col-
umn trim panels (white arrow) to remove and release snap
clip on column boot
(black arrow).
I 1 < Remove instrument cluster trim panel fasteners (arrows).
Pull trim panel out and disconnect harnesses for light
switches.
- Remove radio volume control knob.

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513-12
Interior Trim
< Remove steering column trim panel by releasing clips (ar-
rows).
< Remove left side mounting fasteners (arrows).
Lilt dash panel upwards and remove through passenger
door.
- Installation is the reverse of removal.
Window and door post trim panels,
removing and installing
Windshield post trim (A pillar), removing and Installing
- On 1998 and later cars, disconnect battery negative (-) cable
I
WARNING-
On 1998 and later models, front Head Protection System
(HPS)
airbags are installed in the driver and passenger side
windshieldpost
trim (A-pillar). See 721 Airbag System
(SRS) for warnings and cautions regarding airbags.
< Remove A-p~llar trim panel fastener cap (arrow)

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51 3-1 4
llnterior Trim
Carefully pry bottom of upper trim panel away from door post
to release clips.
Pull upper trim panel straight down (arrow) to remove.
Installation is reverse of removal.
If necessary replace defective or
broken mounting clips.
Rear window pillartrim (C-pillar), removing and installing
(models without rear
HPS airbags)
1 I
WARNING-
On 1998 and later models, rear Head Protection System
(HPS)
airbags may be installed (optional equipment) in the
driver and passenger side C-pillar area.
The procedure given
below does not cover models with rear HPS airbags. See
721 Airbag System (SRS).
4 Carefully pry interior light out of C-pillar trim panel and dis-
connect wiring harness.
Carefully pry trim panel out at top to release clips,
- Pull trim panel straight up to remove.
- lnstallation is reverse of removal.
If necessary replace defective or broken mounting clips.