After trips to several shops to figure my light problems out, apparently I need to replace the light control modules & the xenon igniters on my 01' 325CI. After some research, I'm thinking about doing it myself as the removal & replacement of these parts seems fairly straightforward. I was wondering if there is anything special that I need to be aware of or do when replacing them. I've read in other forums about needing to get the new modules coded properly or else risk a mileage tampering warning light? Any thoughts or advice would be greatly appreciated!!!