Yes - both my regulators were replaced under warranty. I actually didn't notice anything wrong, but the dealer picked up on a problem while I was having my car inspected for sale.Chipster said:
By the way, for $130 BMW service does a full inspection of your car that can be paid for by the buyer or the seller. They basically go through the same process as when they certify the used cars they sell on the lot. It's a good way to provide a buyer with assurance that you aren't selling them a lemon. Outside of the regulators, my car passed with flying colors.