Hi folks The son of a friend of mine is involved in a uni project involving converting a car to electric. They are trying to sort out the brakes. He was showing me all there options for there system. Most of which involved lots of magic that I don't understand including flip flop logic thingys etc. Anyway... he said they were using a hella vacuum pump similar to ones used on Mercedes...to which I said that Mercedes has a dedicated control module for running that pump. He was quite interested in that and wants to see how proper car manufacturers go about controlling it. I gave him a link to one of the control modules from a 00-07 C180 on eBay and told him I would try and get some wiring diagrams for it. So!! ....does anyone have a wiring diagram for the servo vacuum pump or a pin out for the control module. Or just any information on what inputs and outputs it needs or what other controls modules it talks to. Thanks, Kev.