2001 BMW 525i RADIO

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YOU are now in Volume I
I
Foreword ................... .. ........................................................................\
.......... v
Index
........................ .. ................................................................ rear of manual
General, 001 General Warnings and Cautions 002 Vehicle Identification and VIN Decoder
Maintenance OiO 020 Maintenance
Engine
100 Engine-General 110 Engine Removal and Installation
113 Cylinder Head Removal and
Installation
116 Cyiinder Head and Valvetrain 117 Camshaft Timing Chain
119 Lubrication System
200 Transmission-General
2 Transmission 210 clutch 230 ManualTransmission
I20 Ignition System
121 Battery, Starter, Alternator
130 Fuel Injection
160 Fuel Tank and Fuel Pump 170 Radiator and Cooling System
180 Exhaust System
240 Automatic Transmission
250 Gearshift Linkage 260 Driveshaft
Suspension, 300 Suspension, Steering and 330 Rear Suspension
Brakes-General 331 Final Drive
Steering and No Front Suspension 340 Brakes
320 Steering and Wheel Alignment
400 Body-General
410 Fenders, Engine Hood 411 Doors
412 Trunk Lid, Tailgate
510 Exterior Trim, Bumpers 512 Door Windows
Equipment 513 Interior Trim
7
Equipment and 720 seat Belts
Accessories 721 Airbag System (SRS)
OBD On-Board Diagnostics
. ............ ..
515 Central Lociting and
Anti-Theft
520 Seats 540 Sunroof
.................................................................... Foreword .............................. .. v
Index ................... .. ................................................................ rear of manual
Electrical
6 system
600 Electrical System-General 620 Instruments
610 Electrical Comoonent Locations 630 Liohts
611 wipers and washers 612 Switches eati in^ and Air Conditioning
Radio
. ........... ........ .........................
Electrical Wiring Diagrams

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320-7
Steering and Wheel ~liqnmentl
STEERING WHEEL
Steering wheel, removal and installation
WARNING -
The BMWairbag system (Supplemental Restraint System or
SRS) is complex. Special precautions must be observed
when servicing. Serious injury may result if
SRS system serv-
ice is
attempted by persons unfamiliar with the BMW SRS
and its approved service procedures. BMW specifies that all
inspection andservice should be preformed by an authorized
BMW dealer.
E39 cars may come with either one of two different styles of
steering wheel:
Multifunction (MFL) steering wheel
* Sport steering wheel
4 Multifunction (MFL) steering wheel components:
1. Cruise control 1 radio 1 telephone electrical harness
2. Horn button electrical harness
3. Airbag electrical harness
4. Radio / telephone control switch set
5. Air bag
6. Cruise control switch set
Sport steering wheel
3
5 0021413
4 Sport steering wheel components:
1. Switch carrier
2 Steering wheel switch set electrical harness
3. Airbag
4. Lower cover
5. Horn button and airbag electrical harness
- Center steering wheel. Make sure front wheels are pointed
straight ahead.
- Disconnect negative (-) cable from battery.
CA UTIOP&
Prior to disconnecting the battern read the battew discon-
nection cautions given in
001 General Cautions and
Warnings.
-

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320-8
Steering and Wheel Alignment
4 MFL steering wheel: Loosen 2 airbag mounting fasteners
(Torx T27 or T30) located at rear of steering wheel (arrow).
4 Sport steering wheel:
Insert screwdriver through opening in rear of steering
wheel and push against spring tension to release
airbag.
Repeat procedure on other side of steering wheel.
- Carefully lift airbag from steering wheel and disconnect elec-
trical harnesses from
back side of unit. Refer to component
illustrations above. Also see
721 Airbag System (SRS).
Improper handling of the airbag could cause serious injury.
Store the
airbag with the horn pad facing up. If stored facing
down, accidental deployment couldpropel it violently into the
Avoid damaging the variety of convenience switches, such
as radio and cruise controls, installed in the steering wheel of
4 Remove steering wheel center bolt (arrow).

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.
I Body-General 1
Rear wiper system
The rear wiper assembly on the E39 Sport Wagon is a self-
contained unit. The control electronics are integrated into the
gear drive that is part of the motor assembly. The control elec-
tronics contain two hall sensors, one
forthe park position and
one
forthe end stop or to signal reverse direction of the wiper
motor.
-
Wiperlwasher
stalk switch
/ 4 - 3
502400100
4 The rear wiper is controlled through the stalk switch on the
steering column. The switch includes the following functions:
Intermittent rear window wiping
Programmed rear window wiping interval
Operation of rear window washer
The wiper system automatically controls the following safety
and convenience features:
* Wiper interrupted when rear glass is opened
Wiper interrupted if wiper arm is blocked
Continuous wiping when vehicle is shifled into reverse
Antenna and sound system
4 There are two diversity FM antenna amplifiers:
FMI amplifier located in the rear window frame
FM2 / FZV amplifier located in the lefl D-pillar
The radio amplifier and CD changer are behind the side
ac-
cess panels in the cargo compartment:
CD changer on lefl side
Sound system subwoofer on right side
The subwoofer has a hold down knob and is mounted on a
hinge. It can be swung out to access
the batteryand fuse pan-
el by unscrewing the knob.

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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

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I
< Unclip door panel from door perimeter using a plastic trim
panel tool. Pry panel retaining clips off one at a time.
- Lift bottom of door trim panel up and away from window trim
to release clips.
- Pull door panel upwards to release center mount clip.
- Disconnect radio speaker wiring harness.
- Remove door trim panel.
< Before installing door trim panel, replace any damaged plas-
tic clips (arrows).
NOTE-
Yellow door trim clips (white arrows) at front are longer than
white door trim clips (blaclc arrows).
4 Checlt if support clip for door bracltet remains on door (ar-
row).
4 If so, remove support clip from door and replace in bracltet on
door trim panel (arrow).
- Remainder of installation is reverse of removal. Note the fol-
lowing:
Align metal retainers on window sill with openings on top
of door panel.
Checlc door-lock mechanism and window for ease of
movement.

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Trunk Lid, Tailgate
Starting at top, pull down (arrow) on trim cover. Carefully re-
move wiring harness support clip from trim cover.
Install protective plate
(BMW special tool 51 2 153) between
roof panel and hinges.
WARNING -
The tailgate is very heavy and will close without both pressu-
rized lifting
struts installed. Properly support tailgate prior to
removal of the lifting struts.
Worlting at left side:
Remove gas strut retaining clip and pin (arrow).
4 Insert BMW special tool 51 2 151 over strut.
NOTE-
BMW special tool 51 2 151 must be chamfered in area (A).
Press tool down to release inner end of gas strut.
Push strut forward and toward center of vehicle to remove.
- When installing strut make sure ball cup is pointing straight
down.
- Remainder of installation is reverse of removal.
Tailgate, removing and installing
- Remove radio antenna amplifier. See 650 Radio.
- Disconnect outer end of window and tailgate gas struts. See
Rear window gas strut, removing and installing and Tail-
gate gas strut, removing and installing.
WARNING-
The tailgate is very heaq and will close without both pressu-
rized lifling struts installed. Properly support tailgate prior to
removal of the lifling struts.
- Remove trim panel from tailgate.

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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