I've got the old 1800 version. The designers must be effing sadists to inflict this system on their customers. I've replaced a perfectly good heater matrix and left it exposed inside the vehicle so that when l get the wheels a couple of feet off the ground l can then tip the matrix backwards to let the air escape. The local garage told me that they used to lift up these motors to 45 degrees to get the air out whilst revving the bollx off them. I will let you know how I get on. 😅
