1999 BMW 525i wipers

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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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ing at the finish when it is wet. If the water coats the paint in
smooth sheets instead of forming beads that roll off, a new
coat of wax is needed. Waxshould not be applied to black trim
pieces, rubber, or other plastic parts.
Windshield wiper blade maintenance
Common problems with the windshield wipers include streak-
ing or sheeting, water drops afler wiping, and blade chatter.
Streaking is usually caused when wiper blades are coated
with road
film or car wash wax. Clean the blades using soapy
water.
If cleaning the blades does not cure the problem, they
should be replaced. BMW recommends replacing the wiper
I blades twice a year, before and after the cold season.
I
< To replace wiper blade, depress retaining tab (arrow) and
slide blade out of arm.
I - Checlc tension spring that forces wiper against glass. Re-
place wiper arm if spring tension is weak.
Drops that remain behind after wiping are caused by oil, road
film, or diesel exhaust coating the windshield. Use an alcohol
or ammonia solution or a nonabrasive cleanser to clean the
windshield.
Wiper blade chatier may be caused by dirty or worn blades,
by a dirty windshield, or by bent or twisted wiper arms. Clean
the blades and windshield as described above.
Adjusithe
wiper arm so that there is even pressure along the blade, and
so that the blade is perpendicularto the windshield at rest. Lu-
bricate the wiper linkage with a light oil. The
linkage is located
under the hood on the driver's side. If the problem persists,
the blades are excessively aged or worn and should be re-
placed. See
61 1 Wipers and Washers for more information.

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- -
/Battery, Starter, Alternator -- - -. - --I
< Check for battery voltage at alternator terminal 30 (B+) (ar-
row):
Pull back rubber insulating cover at terminal 30 at rear of
alternator.
Connect voltmeter between terminal 30 and ground and
check for battery voltage.
If voltage is not present, check
wiring for faults.
NOTE-
On V-8 engines, access to the rear of the alternator is limited.
Check for battery voltage between the jump start post on the
left cylinder head and ground.
r Disconnect harness connector from alternator. Turn ianition
on and check for battery voltage between terminal
lgand
ground. If voltage is not present, check wiring and fuses for
faults.
Reconnect connector to alternator.
Locate the blue wire coming from terminal
61E of the alter-
nator connector. Carefully connect the positive
(+) test lead
to the wire using a piercing test lead end.
Turn ignition key on and check for voltage. Voltage should be
less than 1.5 VDC and charge indicator lamp should light.
- Making sure all test equipment and tools are clear, start en-
gine. Voltage should increase to
8.0 VDC or higher. The
charge indicator light should go out.
If voltage does not increase and system is not charging,
the fault is in alternator.
- If voltage does not increase, but system is charging, inter- - roaate svstem for faults usina an appropriate BMW scan - .. . tool and'reset fault memory.
- If a load tester is not available, a quick alternator output test
can be done by running engine at about 2000 rpm and turn-
- -
ing on electrical loads (fans, lights, rear window defroster, -
- and wipers). With all accessories on, battery voltage should
be above 12.6
V.

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Body shell
Exterior and aerodynamics
Crash behavlor -frontal impact
-side impact
Body
-rear impact Structural body components -rigidity
-rollover -strength -vibrations -acoustics
Bumpers compartment lid -bendable Seets,.steerlng system .dents -vibrations bars -vibration patterns
Fenders -aerodvnamic
With its traditional styling features, such as the ltidney grille.
circular headlights behind a glass cover (for reasons of
streamlining), and the
"kiclt" in the rear most roof pillar (C-pil-
lar), the E39 can be immediately recognized as a BMW.
The BMW 5 Series chassis is a unibody design constructed of
high strength steel. Attaching parts, such as the front fenders,
rear quarter panels, doors,
trunk lid and hood are also con-
structed of
steel.
Computer aided design (CAD) techniques have been used in
refining the
E39 body to reduce vehicle weight while retaining
strength and increasing torsional rigidity. For good handling
purposes, the more rigid the structure the more precisely the
suspension can operate.
Wind resistance
Windows bonded flush to the body and the guided flow of
cooling air into the engine compartment provide the
carwith a
good coefficient of drag (Cd).
E39 cars have been designed
for balanced aerodynamics but not necessarily an extremely
low Cd. See table below.
Windshield wipers are designed for effectiveness at speeds
up to and beyond 200
ltph (124 mph).
Coefficient of aerodynamic drag (Cd)
6-cylinder sedan 0.30
V-8 sedan 0.31
6-cylinder Sport Wagon 0.31
V-8 Sport Wagon 0.33
Fenders
The exterior panels are corrosion-resistant zinc coated (gal-
vanized) steel. The front fenders are bolted on. For front fend-
er replacement information, see
410 Fenders, Engine
Hood.

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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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Hood, raising to service position
CAUTION-
Do not switch on the windshield wipers with the engine
hood raised. As a precaution, remove the wiper
motor
fuse. See 610 Electrical Component Locations.
The
hoodis heavy Before removing the hoodsupports,
be sure to have an assistant help support the hood.
< Open hood fully. With the help of a partner, support hood and
remove retaining clips (arrow) on upper end of pressurized
lifting struts. Pull struts off hood.
< Raise hood to service position and loclc in position by placing
bolts (arrow) in right and
left hinges.

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41 2-22
1 Trunk Lid, Tailgate
4 With rear window open, loosen loclc nut (A) so that inclination
of loclting pin
(B) can be adjusted.
- Carefully close rear window, while ensuring that locking pin
is centered in rotary latch in lower section.
NOTE-
When closing rear window, be sure that there is a gap of ap-
proximately
1 mm (0.04 in) between the locliing pin and the
rotary latch in the lower section of lock.
- Open tailgate and tighten lower loclc assembly fasteners. Be
careful not to alter inclination of loclting pin
(B) when tighten-
ing loclc nut
(A).
4 To adjust height of rear window at lock, loosen loclc nut (A)
and turn locking pin (B).
Be careful not alter position of loclting pin when tightening
lock nut
(A).
CA UTIOG
After adjusting rear window, always checlr position of wiper
axis relative to drive disc and limit stop on rear window wiper
motor. Adjust if necessary See 611 Wipers and Washers.

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Exterior Trim, Bumpers 1
Radiator grill, removing and installing
- Open hood
4 Carefully pry out tab on lefl or right side of grill trim ring (A),
as well as tabs on bottom.
- Push grill out through opening. Be careful of hood lever on
passengers side of grill.
- Once grill is removed, pry remaining tabs (B) to separate in-
ner grill from chrome trim ring.
- Before installation, assemble chrome trim ring and grill insert
securely. Replace components
if tabs or catches are brolten
or missing.
- Install grill and trim ring in appropriate location in hood. Press
on trim ring until grill snaps into place.
Headlight housing trim panel, removing
and installing
4 Open hood
- Remove spray nozzle of vehicles equipped with headlight
cleaning systems. See
611 Wipers and Washers.
Release inner tab (arrow) support.
Swing trim out to release outer hook
point. from fender mounting
Installation is reverse of removal