I doubt your dealer will do this. Here is a written response my dealer got from BMW UK (in relation to the Auto Stop feature).
Quote:
Hi Barry
We are unable to change the design functionality of MSA. The customer should have been given the opportunity of evaluating this feature prior to purchase, and plays a significant part of our Efficient Dynamics programme, providing lower emissions and a lower tax bracket.
Regards
Mike.
BMW Group UK
Technical Manager
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… but you never know, your dealer may fare better,
I can confirm that the DRL rear lights modification works, I have just done it to a car (30 minutes back & tested).
Regarding dealer knowing about modifications; they only know about it if you generate any error codes. So far, FRM module programming does not generate any error codes - so should not be an issue.
Reprogramming the "Kombi" module (for HUD mods) does generate an error code; and there is a possibility that the dealer may notice this - although unlikely. There is no known method of erasing these error codes (for now); hence I have put off making any modifications that require Kombi module - the rest I'm quite happy to play around...
However, the DRL change is fairly safe.