6 captured repliesDiscussion pagination complete · Source accounts, not a confirmed diagnosis
THIS DISCUSSION / SOURCE-DERIVED OVERVIEW
Discussion summary
YOUR RESEARCHCoolant level dropped in cold weather
Leading reported evidence
Check coolant level
Performed · outcome unconfirmed
No successful repair reported for this finding.
0
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0
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1
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Read evidence and context
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Performed · outcome unconfirmed · Original poster
I checked the coolant level when i arrived and it was indeed way below the min level.
Leading evidence: 'Check coolant level' (no explicit attributable resolution; this is a reported action or suggestion). Across 1 matching discussions, The most frequently discussed action is 'Check coolant level' (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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Performed · outcome unconfirmed · Original poster
I let the car run for 5mins and checked for leakage, but nothing spotted.
Check coolant level (even got the temperature light blinking
Suggestion or failed attempt
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Read evidence and context
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Suggestion · Original poster
The way up was quite steep with a lot of hair pins, and at a some point half-way, i got an indication/warning to check coolant level (even got the temperature light blinking, but the temperature didt rise)
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Suggestion
Look at the dipstick, if it looks milky your engine has a problem with intermix--you probably would have seen hints of oil in the coolant already and it is much less likely than a cracked tank but it's something you need to check just in case.
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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Suggestion
Any time you have coolant disappearing though you need to check the oil for contamination.
Check coolant level (even got the temperature light blinking
No successful repair reported for this finding.
0
Reported fixes
0
Unsuccessful attempts
1
Discussions
Read evidence and context
Discussions that contain suggestions
1
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Suggestion · Original poster
The way up was quite steep with a lot of hair pins, and at a some point half-way, i got an indication/warning to check coolant level (even got the temperature light blinking, but the temperature didt rise)
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
Look at the dipstick, if it looks milky your engine has a problem with intermix--you probably would have seen hints of oil in the coolant already and it is much less likely than a cracked tank but it's something you need to check just in case.
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.
6 eligible posts · 0 unverified posts · 1 discussions match the subject in their title or opening post.
Rennlist: 1 discussions
0 evidence records excluded for query context · 0 excluded by outcome qualification · 0 adjusted by outcome qualification.
1 acknowledgements have no verified action link; they do not establish a repair result.
Outcome without a verified action link
Try a new cap 1st, it solved my problem when I bought my Porsche 3 yers ago.
Hi
I have a 996 4Cabrio (2002 model) and the following occured during this weekend.
I was up on the mountains for skiing. The weather was very heavy, very cold temperatures ( -15 Celsius, 5 Farhenheit). I didnt start the car all day, and in the evening we took the car to go out to the next village. The way up was quite steep with a lot of hair pins, and at a some point half-way, i got an indication/warning to check coolant level (even got the temperature light blinking, but the temperature didt rise)
I checked the coolant level when i arrived and it was indeed way below the min level.
The next day i added 2litres - 0.5 gallon of distilled water and 0.5 litre/0.1 gallon of coolant. The coolant level rised to the half point between min and max. I let the car run for 5mins and checked for leakage, but nothing spotted.
However the day after, i checked again after driving a bit, the coolant level again had dropped below the min level, but i didnt get any indication/warning. I drove back home for 1.5hours in heavy traffic, and no issues with water temperature.
Has this happend to anyone else? Could it be that the coolant contracts in very cold weather?
Thanks in advance for your help guys!
Could be the pressure your system releases into the over flow has reduced. The coolant needs pressure on the fluid or the water boils easy which causes more water to go into the over flow system of things. So I'd imagine that would be a good thing to check on.
I'm not sure what the specifics of the porsche advised special porsche coolant they sell is but before going that route I'd make sure the system gets a new presure relief part.
Oh jah it appears there are some drain points on a tank for radiator fluid below where the battery is. Possibly this area could be leaking and not apear to be related to the radiators and overflow. I've wondered if there is a chance the fluids were frozen in some areas so flow wasn't happening but if your antifreeze was up to covering the temperature range I'd think you had a good flow and not restricting your radiators which would cause over heating and loos of coolant due to it blowing overboard in the overflow tank.
Coolant tanks are known to crack and leak water/coolant and can be difficult to detect. Another item that fails is the coolant tank cap. Try a new cap 1st, it solved my problem when I bought my Porsche 3 yers ago. GL
With a cracked tank the coolant tends to leak during cooldown when you're not around (at least that's what mine did). Park the car hot over dry pavement then come back out in 5 minutes. Look at the ground under the left tail-pipe and the tail-pipe itself, if the tank is leaking you'll see signs then (stains in the pavement, "water" spots on the tail-pipe).
Any time you have coolant disappearing though you need to check the oil for contamination. Look at the dipstick, if it looks milky your engine has a problem with intermix--you probably would have seen hints of oil in the coolant already and it is much less likely than a cracked tank but it's something you need to check just in case.
Thanks for your responses guys. Eventually i took the car to the "hospital". A seal in the cooling system failed and they had to change it and a pipe. No major deal.
It was however interesting that even with the leak, the engine didnt heat up. i was able to drive the car 100 miles with a leaking cooling system.
