Have been prepping to do WP/t'stat AND coolant tank replacement all in one fell swoop. Car's got 109k on it, so if we're draining the coolant to do one, might as well do both. What's held us up lately is the car is at my son's house and his wife had emergency (but apparently very successful) surgery a few days ago and I, for obvious reasons, want to stay out of their hair for a few days.
While reading the description of the tank replacement, it became obvious we're dealing (through major design fault some would say) with the oil filler tube/hose in the process. That triggered a memory from several years ago when I took the boxster in to a dealership to get some service or other done (ignition lock cylinder maybe?) and I asked the tech to do a once over to give me recommendations as to what she could use done. One of the things that came back to me was his mention that the oil filler tube/hose was seeping a little. I don't remember if he used the word tube or hose in his description. But anyway, in that we're going to be there anyway, it only seemed to make sense to replace it. (It's not really been much of a problem: the only time I have to add oil is annually when I change it. So there's not a lot of leakage—still, might as well fix it when doing this job.)
My problem, as is typical, is that I don't know what to order until we're well underway, and at that point one is kind of behind the eight ball ordering it then. My sense is that leakage in this area is probably nearly always for the hose, within the engine bay, the part that has the accordion pleats in it. So my question is just that: when there's a leak from the oil filler tubing, is it invariably in that part (shown below as part #15)? Or is that just one of a few places leaks develop?
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