EWS BMW 528i 1998 E39 Repair Manual

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340-31
Brakes
ABS 1 traction electronic control module
(1 997 -1 998 models)
4 The traction control electronic control module in 1997- 1998
models is located to the left of the glove compartment.
NOTE-
In both ASC and early DSC systems this location is used for
the electronic control unit.
- Before removing the traction control electronic module, read
any fault codes in memory.
ABS I DSC control module
(1 999 - 2002 models)
The DSC electronic control unit in 1999 and later models
(from 911998) is bolted to the DSC hydraulic unit in the right
rear of the engine compartment.
- Before removing the traction control electronic module, read
any fault codes in memory.
- Install electronic control unit using new screws.
Tightening torque
DSC electronic control unit to 2.9 Nrn (26 in-lb)
hydraulic
unit (use new screws)
- Code newly installed module using either DIS or MoDiC.
- Adjust steering angle sensor using menu item Service func-
tion in
DIS or MoDiC.
ABS I traction control hydraulic unit,
removing and installing
WARNING -
E39 cars require special BMWsewice equipment to properly
bleed the brakes. Removal of the hydraulic unit is not recom-
mended unless this equipment is available. For safety rea-
sons, the
brake system on cars with ABS must be bled using
the procedures described in this repair group.
NOTE-
Before starting this procedure, read control module mem-
ory and print
out diagnostic record.
DSC system: Adjust steering angle sensor using
either
DISplus, GTI, or MoDiC. After completing work, function
test control module.

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340-32
Brakes
The procedure for removing the ABS I ASC or ABS I DSC hy-
draulic unit is similar for all models. The unit is located at the
right rear of the engine compartment.
- Using a clean syringe, empty brake fluid reservoir.
CAUTION-
Brake fluid is highly corrosive and dangerous to the environ-
ment. Dispose of it
properiw
4 Disconnect electrical harness connector (A) at hydraulic unit
(1998 DSC hydraulic unit in V-8 model shown).
Where applicable, detach electrical harness connector to
DSC pressure sensor.
Mark brake lines
(arrows) in relation to their placement on
hydraulic unit. Detach lines from unit using appropriate
sized flare wrench.
Seal open brake fluid lines and bores with suitable plugs to
prevent contamination.
- Carefully push aside brake lines from retainerslgrommets
that may be in the way of hydraulic unit removal. Use care not
to
kink brake lines.
- Remove hydraulic unit mounting screws. Remove hydraulic unit.
- If necessary, separate hydraulic unit from control module.
- Installation is reverse of removal, noting the following:
Check rubber mount for hydraulic unit/control module. Re-
place if damaged.
Make sure all nuts, fluid couplings, thread bores and mat-
ing surfaces are clean.
Avoid bending pins on control module harness connector
when reattaching.
Make sure brake lines are securely seated in grommets
before installing brake lines in hydraulic unit bores.
Bleed brakes using
BMW Service Testeras described earlier.
Tightening torques Brake lines to hydraulic unit
18 Nm (13 ft-lb)
DSC electronic control unit to hydraulic unit 2.9 Nrn (26 in-lb)
(use new screws)
Hydraulic unit to body
8 Nm (6 ft-ib)
Mounting bracket to hydraulic unit 8 Nrn (6 ft-lb)

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400-9
Body-General
Battery safety terminal
(BST)
4 Starting with 1999 models (9198 production and later), a py-
rotechnic (explosive charge) device automatically discon-
nects the battery positive terminal during impacts. Key
features,
like power windows and door locks, remain opera-
tional.
Security
Electronic immobilization (EWS)
Ignition key transponder signal All
E39 vehicles incorporate an electronic immobilization sys-
tem known as EWS. This svstem uses a wireless comrnuni-
cation link between a transponder chip in the ignition key and
the ring antenna surrounding the ignition switch. The EWS
control module blocks the starting of the vehicle unless the
correct coded ignition key is used.
NOTE-
Electronic immobilization is sometimes referred to as the
driveaway protection system.
Antitheft alarm (DWA)
This is adealer-installed option for which the E39 vehicles are
factory-wired. When armed, the system monitors door
loci(
contacts and trunk and engine hood locks and sounds a siren
if it detects tampering.
E39 interiors have a unique character, with a combination
of
sporty features and innovativedesign. All body versions were
made in a wide choice of interior and exterior colors. New col-
ors with matching leather or leatherette upholstery were intro-
duced for each model year.
Driving
comfort is enhanced by power steering, tilt steering
wheel, height-adjustable front seats, and electrically adjust-
able and heated rear-view mirrors. Inside the car there are
reading lights at four seating positions.

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41 0-8
(Fenders, Engine Hood
Hood, aligning
When installing the hood, align the hinges as close to the orig-
inal painted surface as possible. Movement of the hood on its
attaching hardware may require touch-up paint.
The hood should be aligned so that gap
(arrows) to fender is
as even as possible.
4 If height adjustment at rear of hood is off, adjust height using
adjusting screw in lower hinge
(arrow). Loosen and reposi-
tion as necessary.
If height adjustment at
ing adjusting screw: rear
of
hood cannot be completed us-
Q Loosen lower hinge screws (1) and (2).
Add or remove washers as needed to correct height set-
ting.

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41 2-2
Trunk Lid, Tailgate
This repair group covers trunk lid and tailgate removal and in-
stallation. Also included here are replacement proceduresfor
the gas-charged support struts that hold the trunk lid or tail-
gate in the open position.
NO JE -
The body is painted at the factory after assembly. Realign-
ment of body panels may expose unpainted metal. Paint all
exposed metal once the
work is complete.
Trunk lid, removing and installing
4 Raise trunlc lid.
Open tool ltit cover and remove screws attaching tool kit to
trunlc lid (black arrows).
Disconnect tool ltit cover retaining strap from
trunk lid and
remove tool kit.
Remove insulating liner expansion rivets (white arrows).
4 Pry out moulded trim cover (arrow).

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Trunk Lid, ~ail~atel
4 Loosen lower tailgate lock fasteners (arrows) so that tailgate
lock can center itself.
CAUTION-
The lower section of tailgate lock must not scrape against
the upper section.
The eccentric pin on the lower section of the tailgate
loclc rotates
when being locked from upper section of
tailgate lock.
- Disconnect tailgate latch actuator motor by squeeze locking
tabs on electrical harness connector and disconnecting.
CAUTION-
Eccentric pin in lower section of trunk lid lock must be at
lower dead center.
After disconnecting plug connector from actuator mo-
tor, tailgate is opened by electric
unloclcing fixture of up-
per section of tailgate loclc.
. For this reason, the cable connections to the upper
section of the tailgate loclc must remain connected.
Othe~tise the tailgate can only be opened by the emer-
gency handle. Eccentric pin of lower section of tailgate
loclc remains at bottom dead center point after unlock-
ing.
Tailgate alignment, height adjustment
4 Loosen left and right tailgate hinge fasteners (arrows) to al-
low tailgate to be adjusted.
CAUTION-
. When the hinge screws for the tailgate are released, the
position of the overall assembly changes with respect to
the body.
The position of the rear window frame to the tailgate re-
mains unchanged.
- Close tailgate carefully and check gap dimensions. See Tail-
gate alignment specifications below.
- Tighten hinge screws when gap dimensions are correct.

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51 3-4
/Interior Trim
Carefully pry cup holder (arrow) out of console,
4 Pry air vent down to release locking clips and remove.
< Remove screws (arrows) at base of front seat armrest and
slide armrest forward to remove.
4 Remove console glove box (A).
Remove rear trim panel fasteners (B).

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I Interior Trim
Insert allen wrench into slot approximately 1 mm and turn
through
90".
Disconnect wiring harnesses from radio.
Remove radio.
4 Remove left and right locking clips (arrow) from glove com-
partment straps.
4 Carefully pry left and right dashboard trim out to remove
4 Remove right side lower dash support screws (A)

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Interior ~riml
Upper dash assembly, removing and
installing
- Remove lower dash assembly. See Lower dash panel as-
sembly, removing and installing.
I I 4 Remove instrument cluster fasteners (arrows) and swing
cluster out to remove.
Disconnect wiring harnesses from instrument cluster.
4 Remove A-pillar (windshield pillar) trim on left and right sides
by prying out
HPS cover (arrow).
- Remove screws beneath covers.
- Remove passenger side airbag. See 721 Airbag System
(SRS).

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51 5 Central Locking and Anti-Theft
........................... General .51 5.2
Central Locking ................... .51 5.2
General Module
..................... .51 5.2
Central locking inputs and outputs
....... .51 5.3
Doorlocks
........................... 515-5
Trunklock
........................... 515-7
Remote entry (FZV)
.................. .51 5.7
Remote entry (FZV) inputs and outputs ... .51 5.8
Car Memory I Key Memory ............ .51 5.12
Trunk lid soft close (SCA)
............. .51 5.13
SCA subsystem
.................... .51 5.14
........ Tailgate and rear window locks
.51 5.14
Sport Wagon tailgate and rear
window
lock schematic ............... .51 5.15
Door Handles and Locks .......... .51 5.16
Door handle (outer), removing
and installing
....................... .51 5.16
Door latch, removing and installing
..... .51 5.17
Outer door lock cylinder, removing
and installing
....................... .51 5.18
Trunk Lock Assembly ............. 515-1 9
Trunk lock. removing and installing
...... 515-19
Trunk lock striker plate. removing
and installing
....................... 515-20
Tailgate lock. emergency release
....... 515-21
... Electronic Immobilization (EWS) 515-21
EWS variations
..................... 515-22
......... EWS control module. replacing 515-23
Transmitter
1 receiver module .......... 515-23
....................... Ring antenna 515-23
Anti-theft System (DWA) ........... 51 5-24
DWA LED Status
.................... 51 5-24
Tilt sensor
......................... 515-24
Interior protection .................... 51 5-25
Glass breakage sensors
.............. 515-26
Emergency disarming
................ 51 5-26