I have a pre-facelift so the EHC II maybe be slightly different on what parameters need to be programmed out. Removing the EHC II from the ZCS and then reprogramming the LCM and whatever other modules have settings for EHC II to the new ZCS may be the best route to take.

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02 Imola on Black Dinan S2 4.6iS
00 RoyalRot on Sand/Black 740i Short Sport