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antifreeze/heat transfer fluid leak from AH
#18

Often a leak shows up at the upper solder joint on the neck- where the cap flange is soldered on. It’s a common enough leak, they used to sell a kit (hose, clamps and new flange) to fix it.

You just drill the rivets to remove that top.

It’s easy to swap out the unit, but it is heavy and bulky. I chose to change mine when the fresh water coil (the outer loop in the pictures) sprung a leak. That was probably 12 years ago. I had about $8000 in a refurbished unit and small parts to complete the job.

Rudy can give you a good estimate of current costs.

06 M450LXi 3 slide
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Messages In This Thread
antifreeze/heat transfer fluid leak from AH - by Pluto - 11-27-2025, 11:50 AM
RE: antifreeze/heat transfer fluid leak from AH - by Pluto - 11-27-2025, 12:00 PM
RE: antifreeze/heat transfer fluid leak from AH - by Trainer - 11-27-2025, 12:23 PM
RE: antifreeze/heat transfer fluid leak from AH - by Pluto - 11-27-2025, 03:34 PM
RE: antifreeze/heat transfer fluid leak from AH - by Richard - 11-27-2025, 04:32 PM
RE: antifreeze/heat transfer fluid leak from AH - by Pluto - 11-27-2025, 05:00 PM
RE: antifreeze/heat transfer fluid leak from AH - by Pluto - 11-27-2025, 05:37 PM
RE: antifreeze/heat transfer fluid leak from AH - by Richard - 11-28-2025, 05:50 AM
RE: antifreeze/heat transfer fluid leak from AH - by hypoxia - 11-28-2025, 07:26 AM
RE: antifreeze/heat transfer fluid leak from AH - by Pluto - 11-28-2025, 08:42 AM
RE: antifreeze/heat transfer fluid leak from AH - by Pluto - 11-28-2025, 03:24 PM
RE: antifreeze/heat transfer fluid leak from AH - by Richard - 11-29-2025, 05:24 PM
RE: antifreeze/heat transfer fluid leak from AH - by Pluto - 11-29-2025, 06:31 PM
RE: antifreeze/heat transfer fluid leak from AH - by Richard - 11-30-2025, 06:19 AM
RE: antifreeze/heat transfer fluid leak from AH - by Pluto - 11-30-2025, 11:02 AM
RE: antifreeze/heat transfer fluid leak from AH - by Trainer - 11-30-2025, 11:34 AM
RE: antifreeze/heat transfer fluid leak from AH - by RussWhite - 11-30-2025, 11:55 AM
RE: antifreeze/heat transfer fluid leak from AH - by arcticdude - 11-30-2025, 12:32 PM
RE: antifreeze/heat transfer fluid leak from AH - by Pluto - 11-30-2025, 04:23 PM
RE: antifreeze/heat transfer fluid leak from AH - by Richard - 12-01-2025, 06:18 AM
RE: antifreeze/heat transfer fluid leak from AH - by Gem930 - 12-04-2025, 12:02 PM
RE: antifreeze/heat transfer fluid leak from AH - by Pluto - 12-04-2025, 12:11 PM
RE: antifreeze/heat transfer fluid leak from AH - by Pluto - 12-07-2025, 10:29 AM
RE: antifreeze/heat transfer fluid leak from AH - by Trainer - 12-07-2025, 11:08 AM
RE: antifreeze/heat transfer fluid leak from AH - by Pluto - 01-23-2026, 08:29 PM
RE: antifreeze/heat transfer fluid leak from AH - by Pluto - 01-23-2026, 08:37 PM
RE: antifreeze/heat transfer fluid leak from AH - by Pluto - 01-25-2026, 06:19 PM
RE: antifreeze/heat transfer fluid leak from AH - by arcticdude - 01-25-2026, 06:46 PM
RE: antifreeze/heat transfer fluid leak from AH - by Pluto - 01-25-2026, 07:27 PM
RE: antifreeze/heat transfer fluid leak from AH - by folivier - 01-26-2026, 05:36 AM
RE: antifreeze/heat transfer fluid leak from AH - by Pluto - 01-26-2026, 05:15 PM
RE: antifreeze/heat transfer fluid leak from AH - by Richard - 01-27-2026, 06:13 AM
RE: antifreeze/heat transfer fluid leak from AH - by [email protected] - 01-27-2026, 10:13 AM
RE: antifreeze/heat transfer fluid leak from AH - by Pluto - 01-27-2026, 10:26 AM
RE: antifreeze/heat transfer fluid leak from AH - by [email protected] - 01-27-2026, 10:49 AM
RE: antifreeze/heat transfer fluid leak from AH - by Pluto - 01-27-2026, 12:14 PM
RE: antifreeze/heat transfer fluid leak from AH - by Pluto - 02-02-2026, 05:55 AM

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