fullymatted.
Back to search
Rennlist

03 Compression check

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

Discussion summary

YOUR RESEARCH03 Compression check

Leading reported evidence

Check during a ppi

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 · Original poster

Was quoted $684 for a compression check during a PPI.

03 Compression check
Read full discussion summary

Leading evidence: 'Check during a ppi' (no explicit attributable resolution; this is a reported action or suggestion). Across 1 matching discussions, The most frequently discussed action is 'Check during a ppi' (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 · 7 captured posts examined · 0 partial discussions

Compare 1 other evidence results

Test 2.5 years later and i guess they were right

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

To give you idea my ppi was $300 and the compression test was $300 and the dealer after doing ppi basically even told me save your money it's a good one no need for compression test 2.5 years later and I guess they were right.

03 Compression check
Frequently discussed actions (2)

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

Check during a ppi

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

Was quoted $684 for a compression check during a PPI.

03 Compression check

Test 2.5 years later and i guess they were right

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

To give you idea my ppi was $300 and the compression test was $300 and the dealer after doing ppi basically even told me save your money it's a good one no need for compression test 2.5 years later and I guess they were right.

03 Compression check
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.

  • Rennlist: 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: 20261026T194705Z · outcome-qualification-6. Deterministic extraction; no AI model inference. How we use sources

POST 1 / ORIGINAL POSTEROriginal post

Was quoted $684 for a compression check during a PPI. Since the car only has 24K miles, the tech suggested I save my money. I've agreed to purchase...mistake or not?

POST 2Original post

Seems steep. I've purchased two 996's over 60k miles, both modded and (knock on wood) no engine issues. However, I obviously can't speak on all of them. Is $684 worth the piece-of-mind and potential of saving you from a jacked engine? Probably. I've purchased cars without doing a proper PPI / compressor, and been screwed... twice. Figured I'd learn after the first time, I suppose i'm too trusting. If the car is in stock trim, you're probably fine. You can have them pull the misfire reports from the DME as well.

POST 3Original post

For a low mileage, naturally aspirated engine I probably wouldn't bother paying for a compression check. If it was a turbocharged engine that someone may or may not have upped the boost on, I wouldn't buy without it.

POST 4Original post

Quotes source post: 9851190

That does seem expensive! Given the mileage you shouldn't need it, MKI maybe but not a MKII.

POST 5Original post

I was quoted $300.00 by Porsche dealer that did my ppi so that seems awfully high. Does that include the ppi or is that in addition to the ppi?

POST 6 / ORIGINAL POSTEROriginal post

They wanted to block out 5 hours @ 114 per, then add the PPI @ 114 = 684...so I guess it was $570...my bad.

POST 7Original post

Ouch... To give you idea my ppi was $300 and the compression test was $300 and the dealer after doing ppi basically even told me save your money it's a good one no need for compression test 2.5 years later and I guess they were right. I am probably gonna do one at 60k service since plugs will be out.

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