Gas Tank Sloshing?

[erm324]

Hey, been having a strange sound coming from the right side rear passenger area during braking to a stop - as weird as it sounds, the only way I can describe it is as if the fluid in the gas tank (or somewhere under the seats) is sloshing around intermittently.

Started noticing this after my 1200 mile service - it's been very cold in the Northeast, could this have something to do with it? Driving me crazy, the brake squeaking itself is borderline embarrassing, now this. FWIW it's a 2016 with 1800mi new. Thanks.

[combatbmw]

Originally Posted by erm324

Hey, been having a strange sound coming from the right side rear passenger area during braking to a stop - as weird as it sounds, the only way I can describe it is as if the fluid in the gas tank (or somewhere under the seats) is sloshing around intermittently.

Started noticing this after my 1200 mile service - it's been very cold in the Northeast, could this have something to do with it? Driving me crazy, the brake squeaking itself is borderline embarrassing, now this. FWIW it's a 2016 with 1800mi new. Thanks.

Ok Im going to make you a happy man.
Tell them to replace your breaks, for some reason the new m5s that have been coming out have a major break squeak problem.

I went in several times before my 1200 mile service.
Then they told me wait to 2k miles, and yes its embarassing as hell.
So I told them to replace the breaks. And I never had it again, so have a few others I know.

Gas tank issue, no idea.