2002 3.0 X5 engine stops while driving

[andrewwynn]

That or alternator. When that fails you'll get DSC/transmission errors.

The fuel pump runs approximately 6-8 seconds at key on.

Is the whistle coming from under the back seat right?

Fuel pumps act intermittent at end of life and last about 5000 hours on average.

Divide your odometer by your average speed to see how close to 5000 hours.

Example my fuel pump failed at about 134,000 and 27 mph average

134000/27=4962.963 lasted exactly the expected amount. Wife's also was within a couple percent of 5000 hours.

With pure gas 4000 hours. E20, 6000 hours. So they have discovered the only good thing about putting an entire year of food for a person into every suv fill up: longer fuel pump life.