Sad that I'm replying to myself but now to wrap things up.... Control module was only available from Germany but arrived in less than 2 weeks. Popped it into the jack and all's well. The heater is working again. The flaps and EGR valve work; once the car warms up. I've never seen the flaps working before and have recently fixed 2 vacuum leaks and the driveability per engine and transmission controls is very improved. Hoping for better fuel mileage. Idle seems a little rough but I haven't any reference to compare. Good luck with your EGR control module issues. Jack