Hi,
I was reading your thread on heater core replacement on your A4 and I was hoping you could help me. I'm a mechanical engineering student busy with a project which involves using a heater core similar to yours and I'm struggling to figure out the flow of water through the core. I see you chopped yours up which helped me a lot and now Im wondering if you know how the other side looks? Is it just an open end tank?
I hope you can help me. Thanks!
Regards PD