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GT4 water temperature - Page 1 - Boxster/Cayman - PistonHeads UK

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7 captured repliesPartial discussion capture · Source accounts, not a confirmed diagnosis

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YOUR RESEARCHGT4 water temperature - Page 1 - Boxster/Cayman - PistonHeads UK

Leading reported evidence

Replace 981 gts

Performed · outcome unconfirmed

No successful repair reported for this finding.

0
Reported fixes: 0
Unsuccessful attempts: 1
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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.

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Performed · outcome unconfirmed · Original poster
Quick question for GT4 owners, I swapped my 981 GTS for a 16 reg GT4 on Saturday and on the run back on the A1 at a 70 mph cruise noticed the water temp at 105 C , whereas both my previous Caymans never went over 90 however they were driven.
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GT4 water temperature - Page 1 - Boxster/Cayman - PistonHeads UK

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Leading evidence: 'Replace 981 gts' (no explicit attributable resolution; this is a reported action or suggestion). Across 1 matching discussions, The most frequently discussed action is 'Replace 981 gts' (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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1 matching discussions · 7 captured posts examined · 1 partial discussions

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Discussions that contain suggestions: 1

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Suggestion · Original poster
Quick question for GT4 owners, I swapped my 981 GTS for a 16 reg GT4 on Saturday and on the run back on the A1 at a 70 mph cruise noticed the water temp at 105 C , whereas both my previous Caymans never went over 90 however they were driven.
Original post Read captured discussion
GT4 water temperature - Page 1 - Boxster/Cayman - PistonHeads UK

Run hotter than those of old

Suggestion or failed attempt

No successful repair reported for this finding.

0
Reported fixes: 0
Unsuccessful attempts: 1
Discussions

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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
Newer GT3s also run hotter than those of old.
Original post Read captured discussion
GT4 water temperature - Page 1 - Boxster/Cayman - PistonHeads UK

Frequently discussed actions (3)

These are separate views of the same evidence. Frequency alone does not establish a fix, and these counts must not be added together.

Replace 981 gts

No successful repair reported for this finding.

0
Reported fixes: 0
Unsuccessful attempts: 1
Discussions

Read evidence and context

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
Quick question for GT4 owners, I swapped my 981 GTS for a 16 reg GT4 on Saturday and on the run back on the A1 at a 70 mph cruise noticed the water temp at 105 C , whereas both my previous Caymans never went over 90 however they were driven.
Original post Read captured discussion
GT4 water temperature - Page 1 - Boxster/Cayman - PistonHeads UK

Run back

No successful repair reported for this finding.

0
Reported fixes: 0
Unsuccessful attempts: 1
Discussions

Read evidence and context

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
Quick question for GT4 owners, I swapped my 981 GTS for a 16 reg GT4 on Saturday and on the run back on the A1 at a 70 mph cruise noticed the water temp at 105 C , whereas both my previous Caymans never went over 90 however they were driven.
Original post Read captured discussion
GT4 water temperature - Page 1 - Boxster/Cayman - PistonHeads UK

Run hotter than those of old

No successful repair reported for this finding.

0
Reported fixes: 0
Unsuccessful attempts: 1
Discussions

Read evidence and context

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
Newer GT3s also run hotter than those of old.
Original post Read captured discussion
GT4 water temperature - Page 1 - Boxster/Cayman - PistonHeads UK

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.

7 eligible posts · 0 unverified posts · 1 discussions match the subject in their title or opening post.

PistonHeads: 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: 20261027T053112Z · outcome-qualification-6. Deterministic extraction; no AI model inference. How we use sources

POST 1 / ORIGINAL POSTEROriginal post

Quick question for GT4 owners, I swapped my 981 GTS for a 16 reg GT4 on Saturday and on the run back on the A1 at a 70 mph cruise noticed the water temp at 105 C , whereas both my previous Caymans never went over 90 however they were driven. Coolant level is spot on so no leaks, and car had OPC service last week. I would have thought with the extra rad etc on the GT4 it should run at 90 also. ( still in the safe zone on the gauge)

POST 2Original post

They run hot. When the car needs to, it will automatically open 3rd rad thermostat and will immediately take 15-20° off. You can press Sport button if you want to do this manually.

POST 3Original post

Interesting as the 718 GT4 runs way hotter than my 981 did. On a Lakeland trip last weekend 105 degrees was norm with 15 degree external temp. Newer GT3s also run hotter than those of old. But only around 90 degrees. Quicker to warm up though.

POST 4Original post

And the oil temperature often runs hotter than the water temperature .... As T says, all temperatures suddenly drop when the third rad opens ....

POST 5Original post

As all have said, completely normal, my '16 GT4 is exactly the same. Oil takes ages to come up to temperature though, and water not fast to warm up either. If you pop it into "Sport" mode (I always do for track days, like the blipper) both come down to about 90ish. Great cars, hope you enjoy yours as much as I have mine. Liam

POST 6Original post

They run hot for emissions, switch to sport mode and watch the oil/water temperature drop as it opens third rad, I always did this a few miles before arriving home to cool engine before putting away

POST 7 / ORIGINAL POSTEROriginal post

Thanks Guys, as usual superb response from PHers as usual. Three things noticed on first drive Steering 20 to 30 % better than my GTS, Brakes need a firmer push but I will soon get used to that, and a car specific thing- the A/C is a lot better it was 24 on Saturday.

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