pinion

I have a 1986 635CSI with 52k miles and have hand no problems with the car. Yesterday the red "inspection" light came on while driving to work.

I had the oil changed at a local BMW dealer 500 miles ago and I was getting full green lights at start up.

Can someone tell me what might have happened and what I need to do?

The car runs fine oil pressure is fine...

Thanks,

jeffreyb4me

I just wrote one of my long explainations, sneezed and the screen went blank. This will be short for now.....If you haven't had a properly performed
[needn't be a dealer] Inspection I or II in the last 15,000 miles, you due for one [Oil Service just performed or not]. IF you have, it may well be the S.I. Board in the Instrument Cluster has failed. Have someone try resetting it first anyway......jeffb

KC Ron Carter

SI reset and batteries

With the ignition switch at (position two) and the engine not running, grounding pin seven #7 of the diagnostic connector to pin one #1 for approximately three (3) seconds will reset the oil service lights. Grounding pin seven #7 to pin one #1 for approximately twelve (12) seconds will do an inspection service reset.

More information.

http://www.specialistcarsbmw.co.uk/stevenage/service/service_lights.htm


http://www.unofficialbmw.com/images/reset1.gif


1. Ground
4. Temperature sensor
7. Reset
8. TDC sensor yellow
9. TDC sensor shield
10.TDC sensor black
11.Start signal
12.Alternator charging excitation voltage
13.Ignition coil
14.Alternator charging supply current
15.Oxygen Heater

It will signal an oil change need between 5k and 7k depending on your indicated speed since the last reset. It will signal stealer inspections at all the predesignated miles.



http://www.eskimo.com/~dalus/bmw/e36/electrical/e36_reset_service_lights.html




SI Board Swap Out

Last but not least - the SI Board. Above is a new SI Board with lithium batteries and below is the old one. Note the blown battery on the old SI Board (green circle). The light blue rectangle shows the actual service indicator LED's which appear on your dash display. These LED's are mounted on a separate circuit board which must be pulled out of the old SI Board and plugged into the new one. This is an easy task. The purple arrow shows the orientation of the SI Board relative to the driver.


If it fails to reset then you need batteries.

Varta battery 500RST OE part.

Radio Shack: part number 23-191: $6.49 for set of two; they come w/solder tabs on them.

1.2 volts / 700mAh

Charge fully B4 installation on SI board.

Consider mounting batteries "remotely" under dash, etc. in separate holder for easy removal in future (i.e. not pulling the console out and apart); you can buy a plastic holder at RS. Run leadwires from holder to SI board connections. Makes life easy if you ever need to replace batteries again.

From Radio Shack, get:
1) You'll need a twin AA battery holder ($3)
2) 2 AA NiCAD rechargeable batteries ($6)

Later,

__________________

pinion

Thanks for taking the time to respond. I took the car to BMW and had them do a reset.

And behold all green bars.

Thanks,

pinion

pinion

Thank you.

pinion

Excellent. Thank you for the information.

Pinion