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Question edited for clarity.
Question moved from MISC to BMW 740iL.
Does the new key have a transponder chip in it? Did you check? If it does, you need to reset the alarm and immobilizer, if not you need a proper key and not a Valet Key.
Wiring, schematic, electrical diagrams, torq settings, parts info, error/fault codes, full assembly/dissembly, service instructions and a lot moreetc are basic contents of these online books they here on this websit e https://big-manuals.com/
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