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Old 01-10-2013, 08:04 AM
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QSilver7 QSilver7 is offline
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Location: Northeast Indiana
Join Date: Aug 2008
Posts: 9,050
Mein Auto: 1997 740iL / 2006 X5 4.4
Did you connect an 18v battery upfront to the OBM (I believe thats what its called) plug?
Not sure what an OBM is (perhaps you meant OBD)...but the e39 doesn't require that a new battery be "registered" like you 07 X3 which uses the MOST communication there's no need for this "plug" that you mention for e39 owners. The info you shared about your X3...will come in handy for those of us that eventually move up into BMWs that have i-Drive and require that new batteries be registered. It appears by keeping the car electrically charged with small amperage...will prevent the need to have to have the new battery coded. This will definitely be kept in my "mental rolodex".

Again, see the instructions in post #2 for changing the battery in an e39.

OBD II connector - for reading/scanning for OBD II codes (electronic emissions) and for all BUS communication for e39s with build dates from 9/2000-up that no longer have the 20 pin DLC in the engine bay...which too was previously mentioned in post #8 above

Q {BMW CCA Member #191509}
2006 E53 X5 4.4i (Sterling Gray) 12/05 mfg date <<~>> 97 740iL (Arctic Silver) 3/97 mfg date
99 540iT (Orient Blue) <<~>> 95 525IT (Alpine White)
91 735iL (Schwarz Black) <<~>> 85 325e (Bronzit)

Last edited by QSilver7; 01-10-2013 at 08:17 AM.
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