E30 On Board Computer Codes

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   Thanks Iain.

I've had a look at the link and I believe it refers mainly to later models than mine, but I've bookmarked the link and taken a copy of the info just in case!

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Dr Shred Members Profile Send Private Message Find Members Posts Add to Buddy List Newbie Joined: 17-March-2003 Location: United Kingdom Status: Offline Points: 4	Topic: E30 On Board Computer Codes Posted: 18-March-2003 at 22:17
	Thanks Iain. I've had a look at the link and I believe it refers mainly to later models than mine, but I've bookmarked the link and taken a copy of the info just in case!

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Iain H Members Profile Send Private Message Find Members Posts Visit Members Homepage Add to Buddy List Really Senior Member I Joined: 15-February-2003 Location: United Kingdom Status: Offline Points: 405	Posted: 18-March-2003 at 09:28
	http://www.xs4all.nl/~tintelen/OBC.htm This link may help............................................... Iain
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Dr Shred Members Profile Send Private Message Find Members Posts Add to Buddy List Newbie Joined: 17-March-2003 Location: United Kingdom Status: Offline Points: 4	Posted: 17-March-2003 at 22:37
	As many of you are probably aware the BMW On Board Computer (OBC) units often have, depending on the exact model, numerous "hidden" test fucntions. I have the access key sequences for a couple of different year model BMW OBC's but none of them seem to work on my particular OBC. The standard variant: * Press the DATE key, and add the day + month numbers * Press 1000 and 10 simultaneoulsy, then use 10 and 1 keys to enter test 19 * Press S/R once. You will now see 0000LOCK or similar * Use the 10 and 1 keys to enter the sum of day + month * Press S/R -- secret functions are unlocked... * Verify by entering test 19 again. Display should show FREE doesn't produce anything useful. Does anyone have a sequence to reveal any hidden test codes for an OBC, possibly an OBC II unit in a car assembled by BMW in September 1989?