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      01-07-2018, 01:45 PM   #1
evolam
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hearing water moving back and forward F83

Hi all,
Im new here, dont know any F83 owner had this problem!
While im driving slowly and brake i heard near side rear sounds water moving backward n forward, like bottle of the water on the back seat.
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      01-07-2018, 04:34 PM   #2
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Quote:
Originally Posted by evolam View Post
Hi all,
Im new here, dont know any F83 owner had this problem!
While im driving slowly and brake i heard near side rear sounds water moving backward n forward, like bottle of the water on the back seat.
Isn't that just fuel in the tank? My F20 M135i has done the same thing since new.
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      01-08-2018, 01:16 AM   #3
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Originally Posted by as7920 View Post
Isn't that just fuel in the tank? My F20 M135i has done the same thing since new.
^ This.

Run the tank down and see if its still doing it and then repeat test when full?

Also, have you checked under the seat to make sure a passenger hasn't actually left a bottle in the back?
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      01-08-2018, 11:38 AM   #4
evolam
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Thanks guy! I will check, and i will try to fill up fuel tank full to see still hear anything, and will let you guys know.
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      01-23-2018, 07:50 AM   #5
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Hi guys...at the end i took my F83 to dealer for checking you can see how much water came out.....
https://video.citnow.com/vthq-0S14Hj
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      01-23-2018, 10:49 AM   #6
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How did all that water get in there?
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      01-23-2018, 11:11 AM   #7
evolam
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I have no idea.....the dealer said to me they want to keep my car overnight to investigate the leaking...it less than 2yrs old only.... i hope this under warranty....no need to pay anything.
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      01-23-2018, 11:17 AM   #8
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Quote:
Originally Posted by Wo-Wo View Post
Quote:
Originally Posted by as7920 View Post
Isn't that just fuel in the tank? My F20 M135i has done the same thing since new.
^ This.

Run the tank down and see if its still doing it and then repeat test when full?

Also, have you checked under the seat to make sure a passenger hasn't actually left a bottle in the back?
You guys must have super good hearing!!!

I've never heard gas sloshing in any car, ever.
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      01-23-2018, 01:50 PM   #9
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Quote:
Originally Posted by evolam View Post
Hi guys...at the end i took my F83 to dealer for checking you can see how much water came out.....
https://video.citnow.com/vthq-0S14Hj
Blimey! I've never seen anything like that.
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      01-23-2018, 01:51 PM   #10
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Originally Posted by 666MorDeath View Post
You guys must have super good hearing!!!

I've never heard gas sloshing in any car, ever.
Like a bat!!
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      01-23-2018, 02:03 PM   #11
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Quote:
Originally Posted by evolam View Post
I have no idea.....the dealer said to me they want to keep my car overnight to investigate the leaking...it less than 2yrs old only.... i hope this under warranty....no need to pay anything.
You need to know how and they need to fix it stop it happening again.

Warranty should be fine you've got 3 years from new.
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      02-02-2018, 03:19 PM   #12
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Hey bud,

I had this issue twice on my M4 cab (first the drivers side and then passenger).

When It rains the water should travel down the inside of the rear quarter pannel (i.e. where your rear windows are) and the water then comes out of the underside via a drain.

When the drain gets blocked with debris the water sits on the inside. The fix was to unblock the drain and from what I recall they made the hole a bit larger. Never had an issue again.

Second time it was the other side.

Hope that helps.
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      02-27-2024, 05:28 PM   #13
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Hey all, usually in the garage but had the f83 in the rain and have a bunch of water stuck in there. Has anyone done a diy for this. Bmw told me they want $400 just to drain the water... its a 2015 so no warranty
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      03-01-2024, 03:34 PM   #14
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https://www.deutschespeed.com/thread...e-and-fix.110/
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