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Old 01-23-2013, 02:44 PM   #3
MANDD
Autobahn East
 
Join Date: Jul 2005
Location: Ajax
Posts: 264
The 91 E34 uses OBC 4. To deactivate this in the event the code is forgotten do the following;

1. Disconnect and then reconnect the battery

2. Turn ignition to position 1 only. (the horn may/will sound)

3. The OBC will now display a time of 15:00 minutes, this will now count down.

4. After the 15:00 minutes has elapsed the car may be started.

Mark.
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