[Brian in Tucson]

Originally Posted by 78F350

After reading all the horror stories, I was disappointed with how easy mine was when I did it.
These two two threads were very helpful:
DIY Coolant Tank Replacement in Under 2 Hours
Another coolant tank replacement DIY

Here's notes from when I did mine:


Lastly, many people have tried to save a little money buying a cheaper coolant tank. Many of those people have posted their regrets.

I got a really cheap expansion tank. $49.95 or so shipped. From Amazon. So far it's worked out really well. Guess I've been lucky. NLA, btw. But there is this:

https://www.amazon.com/Genuine-Porsche-Radiator-Coolant-Expansion/dp/B00AGR9XLE/ref=sr_1_3?ie=UTF8&qid=1523285780&sr=8-3&keywords=Porsche+boxster+expansion+tank

Mine wasn't so easy the first time, the Porsche factory elves seem to get a perverse delight installing those spring clamps pointing the wrong direction so they're impossible to compress. I put it back together, with a new oil fill tube and a new dipstick tube. Reused all the spring clamps except the two that go to the metal coolant tubes (replace those rubber hoses,) those were brand new worm drive clamps, the best I could find. Makes getting it all loose again more of a piece o' cake. In case my cheap coolant tank needs replacing in 4 or 5 years.