5 captured repliesDiscussion pagination complete · Source accounts, not a confirmed diagnosis
THIS DISCUSSION / SOURCE-DERIVED OVERVIEW
Discussion summary
YOUR RESEARCHCoolant Guage Failure
Leading reported evidence
Check coolant level, blocked radiator grills
Performed · outcome unconfirmed
No successful repair reported for this finding.
0
Reported fixes
0
Unsuccessful attempts
1
Discussions
Read evidence and context
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Discussions that performed work without a confirmed outcome
1
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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
First time was panic and checked coolant level, blocked radiator grills - but all ok.
Leading evidence: 'Check coolant level, blocked radiator grills' (no explicit attributable resolution; this is a reported action or suggestion). Across 1 matching discussions, The most frequently discussed action is 'Check coolant level, blocked radiator grills' (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 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 · Original poster
On using car from cold when the coolant gauge gets to 60 degrees it fails to zero and the associated red light flashes.
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.
5 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 · 0 adjusted by outcome qualification.
0 acknowledgements have no verified action link; they do not establish a repair result.
Generation: 20261026T142254Z · outcome-qualification-6. Deterministic extraction; no AI model inference. How we use sources
MY 2003 996 Carrera 2 Coupe Tip - 45,000 miles. Started 3 months ago. On using car from cold when the coolant gauge gets to 60 degrees it fails to zero and the associated red light flashes. OBC shows thermometer icon and words 'failure indicated'. First time was panic and checked coolant level, blocked radiator grills - but all ok. After another 3-8 miles the gauge flicks back to life, the gauge comes to life, the needle flicks to 80 degrees then settles back to 65 degrees and the red flashing warning light goes out. Thereafter for remainder of journey assuming coolant temp stays above 60 degrees the gauge is OK. It can then take anything between 15 -60 minutes for the gauge to get to it usual Op Temp of 75-80 degrees. Assume from symptoms that somewhere the electrical connection goes 'open circuit' as 'short circuit' is indicated by gauge going to full hot deflection. Have tried spraying coolant level plug connector on coolant tank with WD40 and on one occasion seemed to solve problem but it was back next journey and no more WD40 applications helped. Can I get at the thermostat and its connector easily to check or not. Any ideas please.
Thank you, will give it a try and come back if no change to situation. Part of the problem is,although I know it is probably a transient failure, the drivers hand book makes it very clear that a flashing red warning light is a NO-GO. But given that all returns to normal after a few miles I have taken a calculated risk in continuing to drive until it is due in for its Service at Paragon in E Sussex and I live in Cornwall.
have had it on a few tiptronics where the vac pipe for the coolant valve attached to the side of the tip box has come off the valve and does not therefore actuate the valve and is not circulating roung the cooler on the tip box.
what this then does is throw the red warning light on on the coolant gauge, if all that fails then possible coolant sensor which is situated just behind the drive belt..
