Originally Posted by Dundas
My May 08 build E92 is due for routine service which the dealer tells me includes a software update. Can I leave the new controller in or do I need to put the original controller back in for the software update?
As stated before in the thread, remove new controller and re-install "old" controller before a software update. This way there will be no issues with the update process giving out error codes for "unknown" parts.
-2012 E92 M3 Jerez Black/Rust Brown, M-DCT: September ED
-2008 E90 M3 Melbourne Red/Bamboo, 6MT: Gone
-2007 MK5 GTI United Grey/Grey, DSG: Gone
-2004 E46 M3 Carbon Black/Cinnamon, 6MT: Gone
-2002 E46 330i Orient Blue/Natural Brown, 5MT: Gone