2000 BMW 540i heat

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340-25
Brakes
- Remove complete exhaust system as described in 180 Ex-
haust System.
- Remove center tunnel heat shield.
< Pull parlting brake cable out of body guide tube (arrow) and
detach from routing bracltets, noting correct routing for rein-
stallation.
- Remove parlting bralte shoes as described earlier.
4 Pull shoe expander (A) forward, disconnect parlting bralte
cable
(B) and remove expander.
4 Reroute new cable under car, attaching to bracltets (arrows).
- Remainder of installation is reverse of removal.
Adjust parking brake as described earlier.

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400 Body-General
........................ General ........................... .40 0.2 Roof paddin~ 400-7
Body Assembly ................... .40 0.2
Body dimensions (in inches)
............ .40 0.2
Bodyshell
........................... 400-3
Exterior and aerodynamics
............. .40 0.3
Sport Wagon ...................... .40 0.4
Tailgate
............................ .40 0.5
Tailgate lock system
.................. .40 0.5
Rear wiper system ................... .40 0.6
Antenna and sound system ............ .40 0.6
Safety and Security Features ....... .40 0.7
Safety cage
......................... .40 0.7
Door locks and door handles
........... .40 0.7
.
........................... Seat belts 400-7
Airbags ............................ 400-8
Battery safety terminal (BST)
........... 400-9
Security
............................ 400-9
Interior Features ................... 400-9
............................. Seats 400-10
Instruments and controls .............. 400-10
Central body electronics
.............. 400-1 1
Heating and Air
Conditioning (IHKA)
............... 400-12

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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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400-1 0
Body-General
Seats
4 Anatomically correct seats are constructed from polyure-
10 way seat adjustment thane foam
containing areas or "zones" of different firmness.
They offer good lateral support without constricting the occu-
pant.
The seats have a passive internal ventilation system: Cylin-
drical cavities within the cushions and backrests generate a
pumping effect as the ride motions cause occupant motion.
This
helps remove moisture and feeds fresh air into the seats.
Other features of the seating system:
The seat bases have steel springs for added support and
strength.
The seat control switches are along the outside edge of
the
seat.
Heated seats are an option in all models
In cars equipped with seat position memory, three different
seat confiaurations can be memorized by the seat control
module(s): Seat memory coordinates with outside mirror
memory. These functions are controlled by the seat mem-
ory
module(s).
* For security reasons, the release lever to fold the rear seat
backrest forward is installed in the trunk.
Sport Wagon models: Rear seat
baclts are split 60140, with
the center armrest on the left seat back.
The center armrest incorporates a non adjustable head-
rest. When folded down, the armrest opens out with
cup-
holders and a storage compartment. See 520 Seats for
more details.
instruments and controls
Everything in the interior passengercompartment essential to
the driver is logically grouped and easy to reach. All instru-
ments and controls have been arranged ergonomically and
are fully integrated into the overall design of the vehicle.
Tilt-telescopic steering wheel has
30 mm (1.2 in) of vertical
and longitudinal adjustment.
Multifunction steering wheel contains two
ltey pads con-
taining controls for the sound system, telephone and
cruise control.
Padded dashboard houses the instrument cluster and the
ventilation and heating system.

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400-12
I Body-General
HEATING AND AIR ~ONDITIONING
(I H KA)
4 The integrated heating and air conditioning (IHKA) system
uses an extra large, infinitely variable radial blower motor for
good distribution of air. Fresh air enters through the grille
be.
low the engine hood and into the passenger compartment via
the dashboard and
footwell vents.
- Repair information for the heating and air conditioning
system is covered
in 640 Heating and Air Conditioning.

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-
Exterior Trim, Bumpers
This repair group includes repair information for the outside
rearview mirrors, front and rear bumpers, and the easily re-
movable exterior trim parts.
Many of the mirror components are separately available from
an authorized
BMW dealer, including the glass and outside .
plastic housing.
The
E39 models offered two types of outside mirrors, stan-
dard mirrors or automatic dip mirrors.
Outside mirror glass, replacing
CAUTIOI\C
Mirrorshould be at or above room temperature before remov-
al.
Othe~lise, small plastic parfs or glass may break.
Outside mirror glass without automatic dip control,
replacing
Insert thin pry tool (plastic or tape-wrapped screwdriver) be-
tween bottom mirror edge and mirror housing and carefully
pry out mirror glass from housing.
If equipped with heated mirrors: remove heating element
har.
ness connectors from back of mirror glass.
Installation: Connect mirror heating harness if equipped.
Ensure correct alignment of locking pins.
Press mirror glass firmly until it
locks in place.

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-.- -
Exterior Trim, Bumpers
Outside mirror glass with automatic dip control,
replacing
4 Slide locking pin (arrow) right to release glass (A).
- If equipped with heated mirrors: remove heating element har-
ness connectors from
back of mirror glass.
4 Install mirror glass by placing glass on lugs (arrows) and turn
loclting pin until glass is locked in place.
Outside mirror housing, removing and
installing
- Remove mirror glass as described above.
4 Compress plastic retainers (arrows)
NOTE-
The front mirror housing is retained by either three or four
clips, depending on model.

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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