7 captured repliesDiscussion pagination complete · Source accounts, not a confirmed diagnosis
THIS DISCUSSION / SOURCE-DERIVED OVERVIEW
Discussion summary
YOUR RESEARCH996.1 1999 C4 - new to me
Leading reported evidence
Replace ) like a hawk
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 don't want to change it out now, then I would watch the oil filters (after oil changes) like a hawk.
Leading evidence: 'Replace ) like a hawk' (no explicit attributable resolution; this is a reported action or suggestion). Across 1 matching discussions, The most frequently discussed action is 'Replace ) like a hawk' (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.
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
My Porsche Specialist is not promoting the IMS change as he says the car had a pretty easy life so far and that IMS should be OK noting the car has reached 80k without issues and said to do it when I need to replace the clutch.
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
Have anyone had engine rebuilts after replacing the IMS with reputable ones?
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.
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
My Porsche Specialist is not promoting the IMS change as he says the car had a pretty easy life so far and that IMS should be OK noting the car has reached 80k without issues and said to do it when I need to replace the clutch.
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: 20261026T122219Z · outcome-qualification-6. Deterministic extraction; no AI model inference. How we use sources
Hi All,
I have purchased (from a friend who owned for 5 years) a 996.1 November 1999 Carrera 4 Manual Coupe. I bought the car with about 79.5k miles and it has just hit 80k. The car has full service history (yearly)
Since buying I have done the following:
- Service Oil + filters (just for peace of mind as last service was in April/May time and needed new filters)
- Full showroom valet with machine polish
- Interior seat refurbishment to remove some side bolster scuffs
- 2 new N rear Continental tyres
- Headlight treatment to remove some yellow-ish age related
The car is now booked to fix a few things from the PPI:
Track rod Ends
Front bump stops
New driver's door lock
New key head
Coolant sender
Coil pack inserts
Drop link set
My Porsche Specialist is not promoting the IMS change as he says the car had a pretty easy life so far and that IMS should be OK noting the car has reached 80k without issues and said to do it when I need to replace the clutch. His view is that I can do all remedial work IMS, RMS, water pump, etc and lose the engine to bore scoring, so might as well keep maintaining it well and I should have a good car other than invest 2-3k on a low probability issue.
What is the view around?
Have anyone had engine rebuilts after replacing the IMS with reputable ones?
Thanks all
My opinion is swapping the IMS bearing is a preventive measure, not repair. Remember, just because you have only 80K miles on this car, it's still a 20 year old car and from what I understand, "garage queens" suffer more from bearing failure than the ones that were driven more often. If you don't want to change it out now, then I would watch the oil filters (after oil changes) like a hawk. Change the oil twice a year regardless of miles. Do you know if the bearing has every been changed?
I also agree with the Indy's assessment. It's a 99 model so it has the more reliable dual-row IMS bearing from the factory. It's made it this far without issue. Cut open your oil filters, open them like an accordion, and look for metallic particles.
Original engine? Generally speaking I agree with your Indy, but there's a whole lot more to this engine than the IMS bearing. That being said, is he a M96 expert? The M96 is fairly idiosyncratic and has lots of potential modes of failure. Knowing how these potential problems present themselves can be a life/engine saver. Good luck with it!
Hi - yes he is really good - full Porsche specialist, drives a 968 CS himself
Just love the car, would love it even more if I could have full piece of mind
This is a source reference. Confirm exact model applicability in the original material.
