1997 BMW 540i Harness

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51 0-4
I Exterior Trim. Bumpers
4 Carefully remove mirror housing from frame
- Installation is reverse of removal.
NOTE-
Check mirror function before installing covering parts
Outside mirror assembly, removing and
installing
- Remove front door panel trim. See 41 1 Doors
4 Carefully lift inner trim panel up to remove from retaining clip
(arrow).
Disconnect electrical harness connectors for window anti-
trapping protection (B) and speaker (A), if equipped.

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Exterior Trim, ~umpersl
4 While supporting mirror, remove top mounting fastener
(arrow).
Lifi mirror up to remove from door, feed mirror electrical
harness through opening to remove.
- Installation is reverse of removal.
NOTE-
Checlt mirror function before installing covering parts.
Tightening torque
Outside mirror to door (M6) 6 Nm (4.5 It-lb)
BUMPERS
- Raise and properly support vehicle.
WARNING-
Male sure that the car is firmly supported on jacltstands de-
signed
forthe purpose. Place the jacltstands understructural
cliassis points. Do not place
jack stands under suspension
oarfs.

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51 0-8
I Exterior Trim, Bumpers
- Installation is reverse of removal, noting the following:
Carefully slide bumper side panels over mounting brackets
on fenders.
Make sure gap between body and bumper is set to speci-
fications. Adjust height as necessary. See Front bumper
height, adjusting.
If equipped with headlight washers or
park distance control
reconnect hoses and harness.
Tightening torque Bumper to impact absorber
(M10) 41 Nm (30 ft-lb)
Front bumper impact absorber, replacing
To access front bumper mounting bracket and impact absorb-
er mounting hardware remove front bumper cover. See Front
bumper, removing and installing.
4 Remove front bumper impact absorber mounting nuts (A)
and drill out rivets (B).
NOTE-
Install the bumper bracket bolts using thread locking com-
pound.
- Installation is the reverse of removal.
Tightening torques Bumper to impact absorber
41 Nm (30 fl-lb)
Impact absorber to body (6M) 9 Nm (7 ft-lb)
Impact absorber to body (EM) 22 Nm (16 It-lb)

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Exterior Trim, Bumpers
4 Remove bumper mounting nuts (arrows)
- Slide bumper straight off bumper side mounting brackets.
NOTE-
If equipped with PDC (Park Distance Control) remove electri-
cal harness grommet and remove harness.
- lnstallation is reverse of removal, noting the following:
Make sure gap between body and bumper is set to speci-
fications. Adjust height as necessary.
To adjust bumper height, loosen bumper mounting nuts (ar-
rows) and adjust height.
Tightening torques
Impact absorber to chassis (ME nut) 20 Nm (15 ft-lb)
Side bracket to body 6 Nm (53 in-it)
Rear bumper impact absorber, replacing
- Raise and properly support vehicle.
WARNING -
Make sure that the car is firmly supported on jack stands de-
signed for the purpose. Place the jack stands beneath
struc-
turalpoints chassis. Do not place jaclc stands under
suspension parts.
- Remove bumper. See Rear bumper, removing and install-
ing.
- Remove bumper cover expanding rivets and remove cover.
. - . . - . . ".-- < Remove b~mper mpact absorber (6) bot (arrow).
I If necessary, replace mounting seals (C).
- Installation is reverse of removal.

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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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Door Windows
Window anti-trap strip, testing
- To test function of anti-trap strip on any window:
With key
ON and window down, pull up window switch to
second detent, thus activating one-touch close operation.
Insert wooden block or other soft object between glass
and upper door frame.
Window should contact block, then immediately reverse
direction and lower by approximately
25 mm (1 in).
NOTE-
Anti-trap strip is integrated into the molding strip of the door
window frame.
Front window anti-trap strip, removing
- Remove front door panel and vapor barrier as described in
411 Doors.
< Remove window frame mold~ng strlp and peel toward inside
7 of vehrcle.
Separate anti-trap electrical harness connector
top front of door.
NOTE-
Wire color for anti-trap strip is dark gray.
(arrow) at

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Door Windows
molding and
anti-trap strip
4 If replacing molding with new one, transfer mounting clips
and foam insulation as necessary.
1. Window frame molding
2. Clip
3. Door corner speaker cover
4. Foam insulation
- After installation, recheck anti-trap protection.
Rear window anti-trap strip, removing
- Remove rear door panel and vapor barrier as described in
411 Doors.
4 Remove window frame molding strip, peeling it off fixed win-
dow partition
(arrows). Do not tear strip in area (A).
Disconnect electrical harness connector (arrow).
After installation, recheck anti-trap protection.

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512-12
I Door Windows
- Disconnect window from window guide rail as described in
Door window, removing
and installing. Do not remove
window from door.
* Push window up and use wedge to hold in position.
- If necessary, remove speaker unit from door.
- Removing window regulator from door:
Disconnect window motor electrical harness connector.
4 Remove lower window regulator fasteners (arrows).
Remove window regulator fasteners (arrows)
Loosen fasteners (arrows) and slide regulator up to remove
from mounts.
- Remove window regulatorthrough opening in bottom of door,
checking for any wiring that might become snagged during
removal.
- Installation is reverse of removal.
Be sure to route wiring harnesses to keep them away from
moving window mechanism. Use new wire ties as neces-
sary.
-
Tightening torques -
Window motor to regulator 5 Nm (44 in-lb)
502512211
Window regulator to door 8 Nm (71 in-lb)
Adjust window
as described earlier.
- -
W~ndow to guide 8 Nm (71 in-lb)
--