What did you do with/to your Boxster today?

[Radman]

Originally Posted by flouese

Turns out the coolant in the trunk wasn't from a leak in the expansion tank. the top middle spring clamp was loose causing the leak. At least I got to experience the joy of changing out the tank. AOS next.

Anyone need a good, 2 year old expansion tank? Have one laying around.

I just picked up my 99 on Monday. Is there a way to check/verify that the xpan tank is good? I know it isn't leaking, yet.

[A8ked]

If the tank is yellow in color instead of almost white, it's old and likely to fail in the foreseeable future.

When they fail its usually sudden and there will usually be coolant on the trunk floor and dripping from the forward passenger side wheel well area. If you pull out the trunk carpet and remove the panels on the floor you can check for any leakage.

Mine would leak when the coolant got up to temperature and the tank expanded, opening a crack in its bottom. I could not see the crack from above, but the coolant was all over the trunk bottom.