ECO BMW 525i 1997 E39 Workshop Manual

Downloaded from www.Manualslib.com manuals search engine
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.

Downloaded from www.Manualslib.com manuals search engine
51 2-3
Door Windows
Window switches
4 The push type window switch provides the GM Ill with a cod-
ed ground signal. Holding a switch at the first detent provides
a single ground signal on one wire requesting the GM
Ill to
open the window. When released, the ground signal is re-
moved and the window motor stops.
- Momentarily pushing the switch to the second detent and re-
leasing provides an additional ground signal on the second
wire requesting "one touch mode". The GM
Ill lowers the win-
dow automatically until it reaches the end position. Each win-
dow has four positions, two each for the standard mode of
operation and two for the one-touch mode. All window oper-
ation signals are digital inputs to the door modules and GM
111.
- The switch functions in the same manner for window closing
but the ground signal sequence is reversed.
4 Window switch positions.
1. Off
2. Open
3. One touch open
4. Close
5. One touch close
Rear window child lockout switch
4 The rear window child lockout switch (arrow) is incorporated
in the driver's window switch block in
leit front door arm rest.
When activated, it provides a constant ground signal to the
GM
Ill, preventing the windows from being operated from the
rear door switches.
- The lockout switch ground signal is overridden by the GM Ill
if a passive safety system (MRS) crash signal is received.

Downloaded from www.Manualslib.com manuals search engine
51 2-4
I Door Windows
/ Anti-trap strip
Power window motors
The window motors are mounted on cable regulators. The
window motor control circuit consists of two wires for operat-
ing the motor in both directions.
The motors are activated by relays in the GM
Ill. The relays
provide either power or ground depending on the direction of
window travel. The GM
Ill controls the polarity based on a re-
quest to run the window from a window switch or a conve-
nience
openinglclosing signal.
Convenience openinglclosing
The GM Iii provides the convenience openlclose feature, pro-
viding control of the power windows (and sunroof) from out-
side the vehicle with the key in the driver's door lock. The FZV
(remote key) provides the same function for window opening
only.
Anti-trap protection is active during convenience closing from
the driver's door lock.
If the GM receives a request to operate convenience closing
or opening for more than
110 seconds, the function is deacti-
vated and a
fault code is stored.
Window anti-trap protection
4 A rubber pressure guard is located at the top edge of each
door frame. It consists of two contact strips that close when
subjected to pressure. When the contact strip closes (for ex-
ample, a hand is trapped between the top of the window and
the door frame), an anti-trap signal is sent to the GM
Ill. The
window immediately (within
10 milliseconds) reverses direc-
tion. This feature does not require
initialization.
The E39 pressure sensor finger guard has a resistance of 3
Kw and it is monitored for open circuits. When pressed, the
monitored resistance changes to
< 1 Kw. if anti-trap protection
becomes faulty the one touch window closing will not func-
tion.
Window anti-trap protection is
only active in the one touch
and convenience close modes of operation. If the window
switch is pulled and held, anti-trap protection will not function.
The anti-trap contact strip has a resistance of
1.2 K Ohm and
it is monitored for open circuits. Faults with the anti-trap sys-
tem will cancel the one touch feature requiring the window
switch be held to close the window.

Downloaded from www.Manualslib.com manuals search engine
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

Downloaded from www.Manualslib.com manuals search engine
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.

Downloaded from www.Manualslib.com manuals search engine
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).

Downloaded from www.Manualslib.com manuals search engine
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)
--

Downloaded from www.Manualslib.com manuals search engine
Door windows1
Rear 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.
- Disconnect negative (-) cable from battery
- Remove door panel as described in 411 Doors
- Remove airbag unit and vapor barrier from door. See 721
Airbag System (SRS).
- 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.
Loosen fastener (arrow) and slide window regulator up and
out of mount.
Disconnect wiring harness connector (A) and remove fasten-
ers
(6).
Remove window regulator and motor through opening in
door.
- Installation is the 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 Nrn (44 in-ib)
Window regulator to door
Window to guide
8 Nrn (71 in-lb)
8 Nrn (71 in-lb)

Downloaded from www.Manualslib.com manuals search engine
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

Downloaded from www.Manualslib.com manuals search engine
interior Trim
Remove right side lower dash fastener (arrow)
< Remove left side console trim panel fasteners (black arrow)
and slide panel backward (white arrow) to remove.
4 Remove left slde lower dash fastener (arrow)
4 Remove upper dash fastener (arrow).
- Pull bottom of lower dash out to remove
- Installation is reverse of removal, noting the following:
Instrument cluster harness connector
loclting levers must
be in up position before installing connectors.
If replacing instrument cluster with new unit,
recode new
cluster using
BMW scan tool DISplus, MoDiC or equiva-
lent.