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Porsche Club GB

High mileage 996 Turbo's - Anything I should know?

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YOUR RESEARCHHigh mileage 996 Turbo's - Anything I should know?

Leading reported evidence

Check electrical systems work, in particular have a good play

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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 contain suggestions
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Suggestion

Check all electrical systems work, in particular have a good play with PCM if fitted.

Original post Read captured discussion
High mileage 996 Turbo's - Anything I should know?
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Leading evidence: 'Check electrical systems work, in particular have a good play' (no explicit attributable resolution; this is a reported action or suggestion). Across 1 matching discussions, The most frequently discussed action is 'Check electrical systems work, in particular have a good play' (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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Compare 3 other evidence results

Check spurious boost pressure readings

Suggestion or failed attempt

No successful repair reported for this finding.

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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
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0 original-poster resolution reports. Counts can overlap; they are not unique people or a success rate.

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Suggestion

Also check for spurious boost pressure readings on dash guage when giving it some jive

Original post Read captured discussion
High mileage 996 Turbo's - Anything I should know?

Check with piwis tester usually highlights any issues

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

MAF sensor - 160 ish, a check with PIWIS tester usually highlights any issues

Original post Read captured discussion
High mileage 996 Turbo's - Anything I should know?

Test accumulator probs by pumping pedal

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No successful repair reported for this finding.

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Reported fixes
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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

Clutch operation/accumulator, simple test for accumulator probs by pumping pedal

Original post Read captured discussion
High mileage 996 Turbo's - Anything I should know?
Frequently discussed actions (4)

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

Check electrical systems work, in particular have a good play

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

Check all electrical systems work, in particular have a good play with PCM if fitted.

Original post Read captured discussion
High mileage 996 Turbo's - Anything I should know?

Check spurious boost pressure readings

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

Also check for spurious boost pressure readings on dash guage when giving it some jive

Original post Read captured discussion
High mileage 996 Turbo's - Anything I should know?

Check with piwis tester usually highlights any issues

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

MAF sensor - 160 ish, a check with PIWIS tester usually highlights any issues

Original post Read captured discussion
High mileage 996 Turbo's - Anything I should know?

Test accumulator probs by pumping pedal

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

Clutch operation/accumulator, simple test for accumulator probs by pumping pedal

Original post Read captured discussion
High mileage 996 Turbo's - Anything I should know?
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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.

3 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: 20261026T161109Z · outcome-qualification-6. Deterministic extraction; no AI model inference. How we use sources

POST 1 / ORIGINAL POSTEROriginal post

As above. I'm currently looking at 996 Turbo's around the 100,000 mile mark. Is there anything I should know about, or be worried about on a Turbo of this mileage? Cheers Paul

POST 3Original post

A while ago somebody asked a similar question and the response was : In addition to checks common to any car, ie, vin numbers, hpi, history/invoices, accident damage, panel gaps, discs/pads tyres, fluid leaks etc etc usual suspects include:- corroded water rads - about 200 quid each corroded/leaky air-con condensors - 165 quid each + re-gas MAF sensor - 160 ish, a check with PIWIS tester usually highlights any issues Sticking wastegates/actuator rods Loose heat shields, exhaust and turbos dodgy N75 boost control valve, again should show up when codes are read Clutch operation/accumulator, simple test for accumulator probs by pumping pedal Also check for spurious boost pressure readings on dash guage when giving it some jive Check all electrical systems work, in particular have a good play with PCM if fitted. They are great cars hope you find a good one.

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