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Old 11-12-2020, 10:42 AM
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TriX5 TriX5 is offline
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Leaking at the tank seal.

A big leak developed at the driver-side tank seal. In addition, it took some damage from below long ago (looked like previous owner tried to jack it up in the wrong place or something since there was no other injury to the front) and when I pulled it out for the engine work I couldn't believe it hadn't leaked before. When I reinstalled it, it held fine except for a drop a day that was puzzling me, never seen a quick connect leak on these. Last Monday the drop became a gush and clarified the culprit, about 9 months of pressing the vehicle back in to use. If the new radiator also holds up for 17 years then it's all good :-)

Below is the pair of Exxs last monday, note that once the car cooled the leak stopped. Only really seemed to leak when hot.

EDIT: Typing this up reminded me to get a new cap for the expansion tank. Just to be sure as that cap is now about 10 Y.O.
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2003 4.4i black ext./black int./black headliner (kid's runabout)
2014 535d X-drive, M package, silver/black interior

Sold but not forgotten:
2009 E70 35d, black ext./black int./black headliner (sold 2021)
2006 4.8iS Le Mans blue/cream int./black headliner, SOLD in 2012 sadly...

Other hardware:
2015 Cayenne S (wife's new DD and definitely wroooommmmm)
2016 Tundra 1794 edition crew cab, luxo hauler
2005 Tundra crew cab, weekend hauler. Sold after 150k very happy miles.

Last edited by TriX5; 11-12-2020 at 11:21 AM.
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