fullymatted.
Back to search
Porsche Club GB

996 turbo - any known issues?

Add to repair workspace
Open repair workspace
Original source
2 captured repliesDiscussion pagination complete · Source accounts, not a confirmed diagnosis
THIS DISCUSSION / SOURCE-DERIVED OVERVIEW

Discussion summary

YOUR RESEARCH996 turbo - any known issues?

Leading reported evidence

Check boost

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

If you check the boost when driving it should reach 0.6-0.7 bar at wide open throttle (standard car).

Original post Read captured discussion
996 turbo - any known issues?
Read full discussion summary

Leading evidence: 'Check boost' (no explicit attributable resolution; this is a reported action or suggestion). Across 1 matching discussions, The most frequently discussed action is 'Check boost' (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.

Read captured replies

1 matching discussions · 2 captured posts examined · 0 partial discussions

Frequently discussed actions (1)

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

Check boost

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

If you check the boost when driving it should reach 0.6-0.7 bar at wide open throttle (standard car).

Original post Read captured discussion
996 turbo - any known issues?
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.

2 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: 20261027T013556Z · outcome-qualification-6. Deterministic extraction; no AI model inference. How we use sources

POST 1 / ORIGINAL POSTEROriginal post

I want to buy a 996 Turbo, ideally a 2004 or 2005 with budget of around £35K. As I have just had a nightmare with an IMS failure on a C4 - are there any known issues with turbos that I should be aware of?

POST 2Original post

The engines are fairly bullet-proof, and problems are extremely rare. The only issues I am aware of are turbo wastgate actuators, which can rust or seize, and diverter valves failing. If you check the boost when driving it should reach 0.6-0.7 bar at wide open throttle (standard car). Any less could be a problem, any more is a sign it has been remapped. The actuators are about £300 each, and the DVs about £60. (parts prices only) Other than that, they suffer from the same troubles as all other 996's - aircon rads, etc. They also suffer from saggy rear suspension due to the extra weight, but this can be sorted either by new springs at £150 a pair, or a trip to Centre Gravity which I would highly recommend. Also, don't be alarmed by a puff of smoke at start-up. They tend to do this a lot more frequently than the Carrera. HTH

This is a source reference. Confirm exact model applicability in the original material.