SANguru . . .
Got a call from BMW of North America last Wed. As per their suggestion I took it to East Bay BMW on Thursday morning for a second opinion. East Bay BMW said they thought it was the fuel pump and want to put it on a lift to look at that area of the under carriage. They asked if I could leave it till later in the afternoon . . . and they gave me a loaner car for the day. They changed the fuel pump and VOLIA! NO more fuel pump noise . . . . I hope it stays that way.
SANguru . . . thanks for your suggestion to take it to Easy Bay BMW . . . good dealership! Think I may switch to them for my service needs from now on...