Wow, a serious headache reading how to change the vehicle order in the E53. Our E53 uses the old ZCS vehicle order structure and is not as simple as changing it like my later model E46. Apparently I need Zeko software to make the changes and then have to code the modules and entire car with NCS using checksums. One mistake and you brick the EWS. Not too confident in changing this myself. Anyone else ever done this?