4 captured repliesPartial discussion capture · Source accounts, not a confirmed diagnosis
THIS DISCUSSION / SOURCE-DERIVED OVERVIEW
Discussion summary
YOUR RESEARCH987 3.4S with 83K miles - Anything to be wary off? - Page 1 - Boxster/Cayman - PistonHeads UK
Leading reported evidence
Use better oil and a low temperature thermostat, along
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
The bore score issue can be minimised by using better oil and a low temperature thermostat, along with not labouring the engine.
987 3.4S with 83K miles - Anything to be wary off? - Page 1 - Boxster/Cayman - PistonHeads UK
Read full discussion summary
Leading evidence: 'Use better oil and a low temperature thermostat, along' (no explicit attributable resolution; this is a reported action or suggestion). Across 1 matching discussions, The most frequently discussed action is 'Use better oil and a low temperature thermostat, along' (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.
987 3.4S with 83K miles - Anything to be wary off? - 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.
4 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: 20261027T011819Z · outcome-qualification-6. Deterministic extraction; no AI model inference. How we use sources
I've been considering getting an 986 3.2S over the last couple of months but spotted a 987 3.4S advertised on PH and it's relatively local (100 mile/3 hours).
I was wanting low mileage, this one is obviously newer, an OK colour, but sits at 83K miles. Bit more money than I was intending, not sure if higher price means better car or not. Higher mileage can mean better maintained maybe? Will it be difficult to sell after a few years, with closer to 100K miles?;
Will ask about service history, clutch, IMS/RMS etc when I talk to the seller. Is bore scoring likely on the 3.4?
What's the thoughts of you guys, it's on PH listings but didn't want to post a link without owners permission.
Thanks
My 987.2 S is on 76k miles and drives great. That said I’ve spent on average £3 / year over the past few years on things like refreshing the suspension, crossover pipes, brake lines and a host of other maintenance items I’d expect would need doing on one of similar miles. It’s a manual so had the clutch and flywheel done too along with the transmission cables that frequently snap (there’s an upgrade kit that prevents it from the 981). If you can see the maintenance history and it’s got a long list of thing done then that’s a good sign.
It depends. There may be a lot of suspension, cooling system and air con things that need doing on a car at that mileage, if it hasn’t been done, even if the engine is solid.
The 3.4 in the 987.1 is a bore score engine. The IMS bearing is essentially a non issue. The bore score issue can be minimised by using better oil and a low temperature thermostat, along with not labouring the engine. Tiptronics suffer from bore score more than manuals for that reason. However, the issue can start from any point, but it usually starts or is obvious by 40k. That means any car from 40k up needs a bore scope and is just as likely to have it as it is at 80k. Some say that if a car doesn’t have it by 80k, it’s less likely to get it, but that isn’t the case so much, but it does show that it has been well looked after engine wise.
I’ve had a 3.4 987.1 from 75k up to its current 92k and the biggest expenses have been doing suspension things, plus it needs the obligatory coolant cross over pipes doing soon, which is a big job.
It didn’t have bore scoring at 75k and touch wood it seems that it still doesn’t at 92k.
This is a source reference. Confirm exact model applicability in the original material.
