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BMW 3-Series (E90 E92) Forum > E90 / E92 / E93 3-series Technical Forums > BMW Coding > Recode key from old e92 to new e92



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      10-31-2017, 08:45 PM   #1
reductase
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Recode key from old e92 to new e92

Last year our e92 got totaled and I still have the spare key (non comfort access). Insurance replaced it with a 1 year newer model with comfort access.

Is it possible to reprogram the old key for the new car? Is it DIY or need to include the local service center?
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      11-01-2017, 01:25 AM   #2
ctuna
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http://www.bimmerfest.com/forums/sho...d.php?t=903551

look at the posts by mashman especialy 13
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      11-01-2017, 01:42 AM   #3
RocketSurgeon
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Used keys can technically be reused if they are reset first. I know of a couple places that can reset a used key to virgin for around $20. The virgin key would then need to be programmed to the CAS with something like Autohex. GCoding BMW will program your used key for $100, or supply and program a key for $200. The CAS is a complicated, encrypted system that requires serious tools to work with.
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      11-01-2017, 11:42 AM   #4
reductase
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Thanks for details and the link - super helpful to understand the underlying format.
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