

It involves the use of a BMW factory tool called NCS Expert and a lot of the software is unfortunately in German so is not particularly straightforward to use for non-German speakers! The process is essentially the same for most E46s but bear in mind that there may be some differences in the modules that are available in your car. The following is the process I used to add option $313 (Fold In Outside Mirror Package) to the VO on my Facelift (2003 on) E46 Coupe. This is known as the Vehicle Order (VO) and options such as electric auto folding wing mirrors/side mirrors are part of an option pack that needs to be added to this list if they are to work correctly (or at all) after a retrofit. The car stores a list of options that were installed at the factory in one or more of it’s ECUs.

When retrofitting options that were not factory installed, it is sometimes necessary to program the car to enable them.
