11 captured repliesDiscussion pagination complete · Source accounts, not a confirmed diagnosis
THIS DISCUSSION / SOURCE-DERIVED OVERVIEW
Discussion summary
YOUR RESEARCHCoolant Loss
Reported or suspected cause
header tank cap
Reported cause
No successful repair reported for this finding.
1
Identified cause
0
Suspected cause
0
Reported fixes
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.
Discussions that report identifying a cause
1
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.
Reported cause
Turned out to be the header tank cap, which is also a problem on Boxsters.
Leading evidence: 'header tank cap' (1 discussions report identifying this cause; no attributable repair resolution). Across 1 matching discussions, the most frequently mentioned possible cause is 'header tank cap' (1 discussions; 1 report identifying it and 0 suggest it). The most frequently discussed action is 'Check puddles of water,, can look at it' (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.
Source reports, not a diagnosis or a success probability. Counts refer to discussions and can overlap.
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.
Discussions that performed work without a confirmed outcome
1
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.
Performed · outcome unconfirmed · Original poster
Obviously, I've read the unfortunate alimac's thread about a cracked cylinder and I'm trying not to get paranoid about my problem and, in any case, I have an OPC used warranty on the car renewed only a month ago.
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.
Discussions that performed work without a confirmed outcome
1
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.
Performed · outcome unconfirmed · Original poster
Obviously, I've read the unfortunate alimac's thread about a cracked cylinder and I'm trying not to get paranoid about my problem and, in any case, I have an OPC used warranty on the car renewed only a month ago.
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.
Discussions that suspect a cause
1
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.
Suspected cause · Original poster
Reasoning that the cause was probably water from the road surface on the exhaust pipe, I thought no more about it.
Outcome qualification: Negation, uncertainty or missing explicit repair resolution overrides the raw extraction signal.
Check puddles of water,, can look at it
Suggestion or failed attempt
No successful repair reported for this finding.
0
Reported fixes
0
Unsuccessful attempts
1
Discussions
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.
Discussions that contain suggestions
1
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.
Suggestion
as suggested header tank,rads check for puddles of water,, can look at it for him if he wants to unless he's not near you which is donny....
Discussions that performed work without a confirmed outcome
1
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.
Performed · outcome unconfirmed · Original poster
Obviously, I've read the unfortunate alimac's thread about a cracked cylinder and I'm trying not to get paranoid about my problem and, in any case, I have an OPC used warranty on the car renewed only a month ago.
Discussions that performed work without a confirmed outcome
1
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.
Performed · outcome unconfirmed · Original poster
Obviously, I've read the unfortunate alimac's thread about a cracked cylinder and I'm trying not to get paranoid about my problem and, in any case, I have an OPC used warranty on the car renewed only a month ago.
Outcome qualification: Negation, uncertainty or missing explicit repair resolution overrides the raw extraction signal.
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.
11 eligible posts · 0 unverified posts · 1 discussions match the subject in their title or opening post.
Porsche Club GB: 1 discussions
0 evidence records excluded for query context · 0 excluded by outcome qualification · 1 adjusted by outcome qualification.
1 acknowledgements have no verified action link; they do not establish a repair result.
Outcome without a verified action link
He followed my advice and took off his one which had a part number ending in .00 and replaced it with a new one with the part number ending in .02 and it cured it!
A few weeks ago, I got out of my '99 C4 and heard a hissing sound from the nearside of the engine. I opened the cover and looked for any sign of a leak but could'nt find anything. Reasoning that the cause was probably water from the road surface on the exhaust pipe, I thought no more about it. This happened a couple more times and then disappeared. Yesterday, the temp warning light started blinking at me so I stopped the car, let the engine cool and put about 2 - 3 litres of water into the coolant reservoir but still could find no sign of a leak then or after a gentle drive today
Obviously, I've read the unfortunate alimac's thread about a cracked cylinder and I'm trying not to get paranoid about my problem and, in any case, I have an OPC used warranty on the car renewed only a month ago. Also the engine seems to be idling and revving properly
Has anyone any ideas where the coolant might be leaking from? Also, the car was serviced shortly before this happened so I'm a bit suspicious that something might have been dislodged during the service.
See all the threads about coolant expansion tanks - cracks, splits and pinholes are commonplace. That's the most likely cause, and they are most often in places where it is impossible to see them. I believe Porsche are on their 5th revision of this item - about the same as rear main oil seals!
I had the corroded radiators...ended up finding pools of coolant in front of both front wheels.
OPC replaced them under warranty...and it's been fine since.
Yet another fluid leak though...
My brother in law used to suffer coolant loss all the time in his 996.
Turned out to be the header tank cap, which is also a problem on Boxsters. He followed my advice and took off his one which had a part number ending in .00 and replaced it with a new one with the part number ending in .02 and it cured it!
Its the blue cap he takes off to top up the coolant he is using
I am experiencing the same coolant loss problem! Bit of a pain on those (rare) hot days. I have been advised that both the condenser units are leaking and therefore the system is not holding the gas. However, sounds like it could cost rather a lot of money to put right. Has anyone been able to replace the condenser units themselves and then get a specialist to regas the system? If so the info will be gratefully received! Got to keep the cost down so I can afford to put fuel in the thing!
you can get the condensors yourself yes but you need to go to indy first to get degas if their is any left in system,then you can change them , front bumper off to replace ..
we are currently doing the pair including aircon regas for £330 + vat
