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YOUR RESEARCHCoolant smell in cabin - Again?! - 986 Forum - The Community for Porsche Boxster & Cayman Owners
Leading reported evidence
Replace from the outside
Performed · outcome unconfirmed
No successful repair reported for this finding.
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0
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Performed · outcome unconfirmed
the heater core is replaced from the outside under the frunk area by the battery.
Coolant smell in cabin - Again?! - 986 Forum - The Community for Porsche Boxster & Cayman Owners
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Leading evidence: 'Replace from the outside' (no explicit attributable resolution; this is a reported action or suggestion). Across 1 matching discussions, The most frequently discussed action is 'Repair " in the dealer' (1 discussions). For that action, 0 discussions report a resolution and 0 report an unsuccessful attempt. No action has an explicit, attributable resolution report under the current rules. These are forum reports and suggestions, not a confirmed diagnosis.
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Suggestion · Original poster
Any Cost estimation for doing the "repair" in the dealer ?
Coolant smell in cabin - Again?! - 986 Forum - The Community for Porsche Boxster & Cayman Owners
Repair they did, right
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Suggestion · Original poster
Porsche dealer should have a warranty in this repair they did, right ?
Coolant smell in cabin - Again?! - 986 Forum - The Community for Porsche Boxster & Cayman Owners
Replace 1 year ago
Suggestion or failed attempt
No successful repair reported for this finding.
0
Reported fixes
0
Unsuccessful attempts
1
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Read evidence and context
Explicit resolution reports before identified causes, performed actions and suggestions. Within each level, matching component labels precede direct query mentions and inherited thread context; successful versus unsuccessful discussion counts, owner confirmations and independent discussion support determine order. This is not a probability of success.
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0 original-poster resolution reports. Counts can overlap; they are not unique people or a success rate.
0 discussions have direct query context; 0 report a fix in that context. Other evidence may inherit the discussion’s subject.
Coolant smell in cabin - Again?! - 986 Forum - The Community for Porsche Boxster & Cayman Owners
Coverage and how to read this overview
Counts describe captured discussions, not unique people or a diagnosis. Author identities are not reliably stored. Exact duplicate evidence is counted once across matching discussions; one discussion counts at most once per action/state. Multiple repairs reported together remain a combination. Suggestions and failed attempts do not establish a fix. Matches cover whole discussions and can include related faults, model variants and incomplete threads.
13 eligible posts · 0 unverified posts · 1 discussions match the subject in their title or opening post.
986Forum: 1 discussions
0 evidence records excluded for query context · 0 excluded by outcome qualification · 0 adjusted by outcome qualification.
0 acknowledgements have no verified action link; they do not establish a repair result.
Generation: 20261026T190023Z · outcome-qualification-6. Deterministic extraction; no AI model inference. How we use sources
Hello folks,
My story is somehow weird, since last year my Boxster 986 2.7(2004) started losing coolant and having the smell inside cabin. Went to Dealer and got charged ~$500 for new central heat exchanger (the one under the central dash).
Now the car is losing coolant again, and the smell is slowly/slightly coming back in the cabin from the vents.
How is it possible that it failed again after 1 year?! If it was the water pump leaking coolant, then there should be no smelly cabin, right ?
Thanks in advance!
Hmm...I don't remember exactly what I paid cause I had my Indy mechanic do other items while he had the car but I believe it was $800 to $900 for the water pump and new coolant. I'm guessing the dealer would charge me roughly $1000 to $1500. I'm assuming the rates are similar in Europe. But of course I'm just guessing
I put a new water pump in mine. Wasn't the most easy thing in the world. Doesnt leak anymore but every once in awhile I will still get that coolant smell too
It could be some left over coolant. When my heater core failed shortly after the water pump failed it leaked into the cabin passenger side floor. I never shampood the carpet as suggested by my mechanic. The smell lingered for a week or so.
Yes thats what they replaced. And it stopped the smell of the coolant in the cabin. After 1.5 year or so now, the smell is slowly coming back at random times.
My water pump may be failing also but last time i checked the engine compartment (by the panel behind the seats) i didnt see any leaks in the water pump.
But again, even if the water pump is failing, how would the smell get inside the cabin ?
Porsche dealer should have a warranty in this repair they did, right ?
Thanks
heater core's seem to fail when the water pump does for some reason I don't yet understand. so if your water pump is now going bad, it could mean your heater core is as well. its easy to open up the area and see if there is antifreeze in the heater core box.
Hmm i doubt that the core heater fails too. Most probably its malfunctioning (rather than failing), until i fix the water pump ?
So, maybe when the WP is failing, the Core heater is not working as it should.
