8
Q. What are the pin and wire assignments for the connectors on the OEM stereo amplifier?
A. Below are the pin numbers, wire colors, and their functions for the two connectors on the ten speaker stereo amplifier (Harman Kardon system
included). They are valid for all E36 vehicles made from 9/95 to the present.
Connector X605
Pin #1 power from fuse #9 (red/white)
Pin #2 antenna amplifier input (white)
Pin #3 ground
Pin #5 (+) to right rear low range speaker (blue/violet)
Pin #6 (-) to right rear low range speaker (blue/gray)
Pin #7 (+) to left front low range speaker (blue/white)
Pin #8 (-) to left front low range speaker (blue/brown)
Pin #9 (+) to right front low range speaker (blue/red)
Pin #10 (-) to right front low range speaker (blue/brown)
Pin #11 (+) to left rear low range speaker (yellow/gray)
Pin #12 (-) to left rear low range speaker (yellow/black)
Connector X606
Pin #1 right rear (-) output from radio (brown/orange)
Pin #2 right rear (+) output from radio (blue/black)
Pin #3 left rear (+) output from radio (yellow/black)
Pin #4 left rear (-) output from radio (brown/orange)
Pin #8 (+) to right front mid range speaker (blue/white)
Pin #9 (-) to right front mid range speaker (blue/brown)
Pin #10 (+) to left rear high range speaker (yellow/violet)
Pin #11 (-) to left rear high range speaker (yellow/gray)
Pin #12 (+) to right rear high range speaker (blue/black)
Pin #13 (-) to right rear high range speaker (blue/gray)
Pin #14 right front (-) output from radio (brown/orange)
Pin #15 right front (+) output from radio (blue/red)
Pin #16 left front (+) output from radio (yellow/red)
Pin #17 left front (-) output from radio (brown/orange)
Pin #21 (+) to left front high range speaker (yellow/green)
Pin #22 (-) to left front high range speaker (yellow/brown)
Pin #23 (+) to right front high range speaker (blue/gray)
Pin #24 (-) to right front high range speaker (blue/brown)
Pin #25 (+) to Left front mid range speaker (yellow/white)
Pin #26 (-) to left front mid range speaker (yellow/brown)
Q. What is the instrument cluster test mode and how is it performed?
A. The test mode allows BMW technicians to analyze specific vehicle data. Such data includes a digital readout of engine speed, road speed, and
other diagnostic information. For detailed instructions visit the BMW M Power website at
http://www.bmw-m.net/techproc/test.htm.
Q. What hidden functions are available for the on-board computer (OBC)?
A. The OBC has quite a few hidden parameters that are both informative and configurable. However, do not change any of the parameters unless
you are absolutely sure of what you are doing (write them down). Detailed information can be found at the Unofficial BMW website at
http://www.unofficialbmw.com/all/electrical/all_obc_secret_codes.html.
7
7
.
.
M
M
A
A
I
I
N
N
T
T
E
E
N
N
A
A
N
N
C
C
E
E
Q. When is it time for Inspection I and II services?
A. Your service interval lights will indicate the proper service time, however, if your vehicle is not driven regularly, you should service it sooner. It will
help to consult your local dealership and thoroughly read your manual, but in general, Inspection I should be performed sometime before 2 years /
20K miles and Inspection II before 4 years / 40K miles.
Q. How much does Inspection II cost and what does it include?
A. Anywhere from $300 to $800 depending on the dealer and what they actually do. Your local dealer should have a list of every procedure
performed and it is up to you to verify whether it abides by BMW's recommended procedures outlined in your owners manual. An online list of
those procedures can also be found at BimmerZone
http://www.bimmerzone.com/inspection.htm.
Q. How much oil does the space between the dipstick high and low marks represent?
A. 1.06 quarts
Q. What was the factory fill motor oil?
A. The factory fill was either BMW Mineral Based Oil (15W-40) (most M3s) or BMW Longlife Synthetic Oil (5W-40) (some 1999 M3s).
Q. What motor oil type and viscosity is recommended?
A. BMW released a service interval bulletin (SIB #110400) to modify recommended oil for the 'M' series engines. Also note that the synthetic oil listed
below is manufactured by Castrol and is likely a custom blend exclusively for BMW. Mobil 1 and Valvoline synthetic oils are also approved by BMW.
The recommended oils have been changed to:
BMW High Performance Mineral Based Oil (SAE 15W-40)
P/N 07.51.0.017.868
BMW High Performance Synthetic Oil (SAE 5W-30)
P/N 07.51.0.017.866
According to BMW, for reliable engine performance in all temperature ranges mineral based engine oil viscosity must be
matched to the temperature range at which the vehicle will be operated. Check the temperature viscosity chart in the
Owners Manual or Operating Fluids Manual for further information.
