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Thank you for the great post here.
My spouse smelled gas outside of my car a few weeks ago, but I couldn't smell it inside nor under the hood so I brushed it off. However, after a friend also said the same thing, I decided to check the garage 30 minutes after a nice drive where the car fully warmed up and the smell was pungent.
After searching the forums and seeing this thread along with some others about stuck open fuel injectors, I was fairly confident it must have been either the fuel pump or transfer pump assembly (mainly due to the smell not being present under the hood at all). I ordered all 3 suggested items since I'm close to 135k miles now and figured if it wasn't this I still should replace them. We found some gas on top of the transfer pump casing during the process so I'm sure that was the source.
Overall this is a fairly simple project (~2 hours total). The amazon tool is a bit of a pain but gets the job done for much less than the BMW specific removal tool. The youtube videos do make it look much easier, but that's likely because they filmed on new parts rather than actual 15 year old parts where everything is super tight.
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