Originally Posted by 2ndname
Once you replace the water pump, is the problem gone for good or is this always an ongoing issue for 06 e90s?
That's what I'm currently trying to determine. I have a post today on the E90 board which is attempting to determine if BMW has corrected their initial design deficiency that is causing early pump failures and offering an improved re engineered pump which has corrected the electronics overheating issues. I've heard a rumor that a new improved pump is available, but do not know how to tell if I bought a new pump that it is indeed a newer model pump or an older design pump that is still sitting unsold on their shelf.