I don't know what this is about. I took my 09 Clubman S in Friday for the water pump recall and scheduled maintenance. When the aux recall pump was pulled, the mech noticed that the main water pump was leaking and needing to be replaced as well. Fortunately I am still under warranty so it did not cost me any money. I was very surprised about the main water pump. I have never had any engine trouble or loss of coolant. Could there be a relationship between the aux recalled pump being pulled and the main water pump going bad? So far my A/C is working fine. I'm sorry that this cost you $$$. Until I read your post, I had not heard of anyone else having a problem with the main water pump when the aux pump was replaced on recall. I can't help but wonder if there is a relationship between the two.