2012 E92 N55 Expansion Tank DIY

13Sun13 · 04-12-2020, 05:23 AM

Hello, I’m in the process of replacing my expansion tank, but I’m confused on the bleeding procedure, if anyone could chime in on the bleeding procedure from start to finish that would be great. TIA

BashShah · 04-12-2020, 06:40 AM

5:44 min on this video and for 12 min.
set a stop watch.

bleeder screw on reservoir bottle must be closed.
Reservoir Bottle Cap should be closed or open, doesn't matter.
I personally just leave it on with a few turns, not all the way.

after add coolant as needed, a bit, and run bleeding procedure again.

13Sun13 · 04-12-2020, 05:16 PM

Quote:

Originally Posted by BashShah

5:44 min on this video and for 12 min.
set a stop watch.

bleeder screw on reservoir bottle must be closed.
Reservoir Bottle Cap should be closed or open, doesn't matter.
I personally just leave it on with a few turns, not all the way.

after add coolant as needed, a bit, and run bleeding procedure again.

forsure thanks for the help

04-12-2020, 05:23 AM	#1
13Sun13 New Member 1 Rep 18 Posts Drives: Alpine White E92 335I w/Msport Join Date: Sep 2016 Location: Bay Area, California iTrader: (0)	2012 E92 N55 Expansion Tank DIY Hello, I’m in the process of replacing my expansion tank, but I’m confused on the bleeding procedure, if anyone could chime in on the bleeding procedure from start to finish that would be great. TIA
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04-12-2020, 06:40 AM	#2
BashShah Colonel 298 Rep 2,015 Posts Drives: 2012 335i Sedan Join Date: Oct 2012 Location: Vancouver, Canada iTrader: (0)	5:44 min on this video and for 12 min. set a stop watch. bleeder screw on reservoir bottle must be closed. Reservoir Bottle Cap should be closed or open, doesn't matter. I personally just leave it on with a few turns, not all the way. after add coolant as needed, a bit, and run bleeding procedure again.
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