Okay wow what a project you have on your hands there. I suspect that some previous owner had a technician pull out a few control elements of your air suspension system because they did not want to deal with fixing it or figuring out what was needed to repair it. So you will have to analyze backwards to see whats missing. I am sorry that I cannot help you on this one, my vehicle is a 2003 X5 and has air only on the rear. There are a number of board members that have your year of vehicle and system and should be able to help you. One note of caution on the vehicle I know that your excited to have it and already tearing into the vehicle but you mention that you are sorting through a title issue with the vehicle. I would not spend any more money on the project until you get clear title of the vehicle. I once had a BMW of a similar situation and I was to receive the title within 30 days of the purchase and well that 30 days grew to 12 months and I had invested some serious coin on the project. Just beware