BMW 3 SERIES 2002 E46 Model Yar Changes

Initial Print Date: 10/3/00Revision Date:10/24/00
Subject Page
20 pin Diagnostic Socket Deletion. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
Instrument Cluster SIA Reset. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
2001 E39 Update. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Engines. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Body work. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Fog lights. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Park Distance Control. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Head and Tail Light Changes. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
IHKR. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
IHKA IV. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .17
Rear HPS. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .22
Review Questions. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
Table of Contents
2001 MODEL YEAR CHANGES

2
2001 model year changes
20 PIN DIAGNOSTIC SOCKET DELETION
Model: E39,E46,E52,E53
Production Date: E46 from 6/00
E39,E52,E53 from 9/00
For model year 2001 the E39, E46 and E53 will eliminate the 20 pin diagnostic connector
from the engine compartment. The 16 pin OBD II connector located inside the vehicle will
be the only diagnosis port.
The E38 and Z3 will continue to use the 20 pin connector.
The 16 pin OBD II connector has been in all
BMWs since 1996 to comply with OBD II
regulations requiring a standardized diagnostic
port.
Previously before 2001, only emissions relevant
data could be extracted from the OBD II
connector because it did not provide access to
TXD (D-bus). The TXD line is connected to pin
8 of the OBD II connector on vehicles without
the 20 pin diagnostic connector.
The cap to the OBD II connector contains a
bridge that links KL 30 to TXD and TXD II. This
is to protect the diagnostic circuit integrity and
prevent erroneous faults.
The OBD II connector is located in the drivers
footwell to the left of the steering column of E39,
E46 and E53 vehicles.
Special tool 61 4 300 is used to connect to the
20 pin diagnostic lead of the DIS until the intro-
duction of the DISplus.

3
2001 model year changes
Diagnostics via the OBD II Connector
-+UNLEADED GASOLINE ONLY01220km/hMPH1/min
x1000
40 6080100120
140
160
180
200
220
2401
023
4
5
6
75030
20
15
1220406080
100
120
14011milesBRAKE ABS
1698 7541
DME
DME
AGS
I/K-BUS
IKE/KOMBI
DSC
KL 15 KL 30
TD (RPM)
TXDTXDI
I
OBD II
CONNECTOR DIS/MoDiC
CONNECTOR
KL 31
BMWDISBMW
DIS
BMWDISB
M
WD
I
S
DSC III
kjhsdfkhsdflkhsdlkfjhlkjghkg
lkdkfljdflkjdsfljdslfjldskjflkjdflk
ldsflsdfklhdsfhsdfhsdkhfkhsdf
kldjfkljdfkjdskfkjdskfjkljdfkldsfk
kjsdfkljsdfkdsfkjdsfkljsdfkjds
ldjsfklkjsdfkldsjfkdsjfkdsfkdfklk

4
2001 model year changes
INSTRUMENT CLUSTER SIA RESET
Model: E38,E39,E46,E52,E53
Production Date: E46 from 9/99
E38,E39,E53 from 9/00
On 2001 vehicles without the diagnostic connector in the engine compartment, the use of
the SIA reset tool is not possible. The service indicator may be reset using the reset mode
in the instrument cluster.
Reset procedure for high and low clusters with SIA III using the Reset Mode:
• Ignition key must be “off”
 Press and hold the trip odometer reset button in the instrument cluster (left button), and
turn the ignition key to the first position.
 Keep the button pressed for approximately 5 seconds until one of the following words
appear in the display: “OIL SERVICE, or “INSPECTION”, with “RESET”.
The service due is shown with “reset” if the coded minimum consumption limit has been
reached and resetting is possible. If “reset” is not shown, the minimum limit has not been
reached and resetting is not possible.
 Press and hold the reset button again until the word “RESET” begins to flash.
½
P
1
20406080100
120
1400234
5
6
7
!ABS



 
 






miles
0
10
15 20 40
+
  


TURN THE KEY TO
POSITION 1 (KL R)PRESS AND HOLD
LEFT BUTTON.
KEEP PRESSED FOR
5 SECONDS AFTER
KEY IS SWITCHED
ON.
TAP BUTTON TO
RESET DISPLAY.
12
Service interval reset: high cluster

5
2001 model year changes
 While the display is flashing, press the left button briefly to reset the service interval.
After the display has shown the new interval the following will appear: “END SIA”
The system can only be reset again after 10 liters (2.5gal) of fuel have been consumed.
Reset procedure for clusters with SIA IV using the Reset Mode.
(possible from 9/99
for E46, MY2001 E52)
 Ignition key must be “off”
 Press and hold the trip odometer button in the instrument cluster (left button), and turn
the ignition key to the first position.
 Keep the button pressed for approximately 5 seconds until one of the following words
appear in the display: “OIL SERVICE, or “INSPECTION”, with “rESET”.
 Release the reset button and press and hold again until “rESET” begins to flash.
 While the display is flashing, press the left button briefly to reset the service interval.
After the display has shown the new interval, the following will appear: “END SIA”
The system can only be reset again after 10 liters (2.5gal) of fuel have been consumed.





UNLEADED GASOLINE ONLY01220km/h MPH1/min
x1000
40 6080100120 140
160
180
200
220
240
1
023
4
5
6
7
503020
151220
406080
100
120
140
11
Mm ile s
  




1
2
PRESS AND
HOLD LEFT
BUTTONTURN KEY TO POSITION 1
(KL R)
KEEP BUTTON
PRESSED FOR 5
SECONDS AFTER
KEY IS SWITCHED
ON.
TAP BUTTON TO
RESET DISPLAYE46 service interval reset

6
2001 model year changes
2001 E39 UPDATE
Model: E39 (525i/iT, 530i, 540i/iT, M5)
Production Date: From 9/00
For Model Year 2001 the E39 will receive it’s first cosmetic facelift since series launch in
1997. In addition to the visual changes, several systems have been enhanced and updat-
ed. A new model has also been added, the 525i/it, making 6 variants of the E39 possible.

7
2001 model year changes
Engines
Two M54 engine variants will be added to the E39 for the 2001 M.Y. starting production
9/00. The M54 B30 and M54 B25. The M54 B30 engine will replace the M52 B28TU of
the 528i and become the 530i. The M54 B25 engine equipped 5 Series will create a new
model, the 525i, it will become the entry level 5 series.
The design objectives for the M54 engine were:
 Lower emissions
 Maintain fuel economy
 Increase power and performance.
The 540i/it will use the A5S 440Z automatic transmission with Steptronic as standard
equipment and continues to have the optional 6 speed manual. The 525i and 530i
models will use the A5S 390R (GM 5) with Steptronic as optional equipment until March of
2001 at which time the GM5 will be replaced by the A5S 325Z (5HP 19).
Please refer to the 2000 Systems Diagnosis course material ST 039 for information concerning the
M54 engine family.
M54 B25 M54 B30
HORSEPOWER 192@5900 rpm 225@6000rpm
TORQUE 245Nm@3500rpm 300Nm@3500rpm

8
2001 model year changes
Body Work
The sheet metal remains unchanged, however several touches have been made to
freshen the appearance of the 5 Series.
The front, rear and side impact strips have been painted body color. The 540i/it has a
chrome insert along the upper edge of the impact strips.
The kidney grille inserts on all models have been widened to give the car’s “face” a more
aggressive appearance.

9
2001 model year changes
Fog lights
New circular fog lights with convex plastic lens-
es are tucked neatly into the corners of the new
front air dam. The new lights use an H8 12V
35 W halogen bulb.
Park Distance Control
The 2001 E39 will have Front and Rear PDC available as an option. The system operates
just as the E38 and E53 with the same system. The vehicle is fitted with a PDC switch
located on the SZM. Activation is automatic with reverse gear engagement, but may be
deactivated with the switch. The switch may also be used to activate the system. Criteria
for operation remain unchanged from previous systems.

10
2001 model year changes
Head and Tail Lights
The head and tail lights of the 2001 E39 have received a new look, utilizing optical wave
guide technology. The wave guides are an innovation that are not only aesthetically
pleasing, but also enhance safety.
Head Lights
The front headlights have been completely redesigned, however they fit into the existing
body without any sheet metal changes. The high and low beam headlights are free-form
reflectors and no longer use the glass lenses. The turn signal has been given its own
circular lens next to the low beam.