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This is my 2016 981 Cayman Base (33k miles). I have noticed the sweet smell of coolant after driving but have never seen a puddle or dripping. I've had to top up my coolant a few times but it's never gone low enough to give me a low coolant warning. I finally got the car up on the ramps and got under it to take these photos. All photos are under the rear driver's side inboard of the rear driver's side wheel (basically under the coolant reservoir, near the oil filter). I think what's happening is that coolant is dripping onto the catalytic converter and burning off. Is there a common leak/failure point in this area? I can't tell for the life of me where the leak is originating. Thanks!
I've checked it. No crusty bits on it, the seal isnt degraded, and it fits tightly. Were you suggesting that it wasn't on tight or that theres something wrong with it?
I've checked it. No crusty bits on it, the seal isnt degraded, and it fits tightly. Were you suggesting that it wasn't on tight or that theres something wrong with it?
My seal was degraded but that doesn't seem to be the case for you then.
There are two coolant caps. The cap that you fill coolant in and one next to the engine. The one next to the engine is actually the real cap (you would need to take off the engine cover)
You can buy a cooling system test kit on Amazon. (they come with a bunch of adapters that fits a variety of caps). I would recommend buying the cooling system vaccum fill kit, since price is not that much more and you will need it to fill your coolant after you fix your leak.
Open up the engine cover, check to see if the real cap is leaking, if not use the test kit and put on about 15psi. Whatever leak you have should now start to sip through, then you can look from top of the engine and under the engine to locate the source.
IDK if this is a "common" point of failure but my 2016 Boxster Spyder developed a crack in the coolant reservoir. Noticed a pink puddle underneath driver side rear (about where you describe). No overheating issues, warning lights, etc.
Being a Porsche, the part was about $100. And being a Boxster, the labor to get to the <expletive deleted> thing was about $600.
IDK if this is a "common" point of failure but my 2016 Boxster Spyder developed a crack in the coolant reservoir. Noticed a pink puddle underneath driver side rear (about where you describe). No overheating issues, warning lights, etc.
Being a Porsche, the part was about $100. And being a Boxster, the labor to get to the <expletive deleted> thing was about $600.
YMMV of course.
I opened up the my boxster engine cover with this video. It is absolute PITA, but doable in case you want to save $600.
HELP with Coolant Leak
