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Original source
11 captured repliesDiscussion pagination complete · Source accounts, not a confirmed diagnosis
THIS DISCUSSION / SOURCE-DERIVED OVERVIEW

Discussion summary

YOUR RESEARCHNew Owner

Leading reported evidence

Replace tires and it made a 100% improvement....but beware

Performed · outcome unconfirmed

No successful repair reported for this finding.

0
Reported fixes
0
Unsuccessful attempts
1
Discussions
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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 performed work without a confirmed outcome
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.

Performed · outcome unconfirmed

Replaced tires and it made a 100% improvement....BUT Beware!

New Owner
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Leading evidence: 'Replace tires and it made a 100% improvement....but beware' (no explicit attributable resolution; this is a reported action or suggestion). Across 1 matching discussions, The most frequently discussed action is 'Replace tires and it made a 100% improvement....but beware' (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.

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1 matching discussions · 11 captured posts examined · 0 partial discussions

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Replace under warranty

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

my 02 c4s had rms and engine was replace under warranty.

New Owner
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.

Replace tires and it made a 100% improvement....but beware

No successful repair reported for this finding.

0
Reported fixes
0
Unsuccessful attempts
1
Discussions
Read evidence and context
Discussions that performed work without a confirmed outcome
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.

Performed · outcome unconfirmed

Replaced tires and it made a 100% improvement....BUT Beware!

New Owner

Replace under warranty

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

my 02 c4s had rms and engine was replace under warranty.

New Owner
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.

11 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.

1 acknowledgements have no verified action link; they do not establish a repair result.

Outcome without a verified action link

Shorterm no need to tow the car to dealer to get it fixed so it's still drivable.

No unique explicit quoted action; no causal link assigned

Generation: 20261026T091943Z · outcome-qualification-6. Deterministic extraction; no AI model inference. How we use sources

POST 1 / ORIGINAL POSTEROriginal post

I just traded my '95 993 for an '02 C4S - silver 6-speed. So far (2 days) the car is great. Exceptional power and handling and yet easy to drive. My wife even drove it!! One question about the road noise. It seems to howl at highway speeds - road or tire noise (maybe engine). Is this normal ? I can't say that it is a terrible noise, I just want to be sure that there is no rear end problem. Last question- do the '02's have any history of RMS problems? If they do, what can one do to anticipate this? Thanks to all ROwen

POST 2Original post

The conti factory tires that came on my 01 C4 became extremely noisy at about 8000 miles and conti bought them back.

POST 3Original post

my 02 c4s had rms and engine was replace under warranty. i was told most rms occur around 10-15k miles.

POST 4Original post

RMS at 7500 miles...no big deal if your car is under warranty.

POST 5Original post

If your RMS ever goes(cross your fingers) you'll notice a 25-50 cent size oil drip on the garage floor behund the oil pan cover. Shorterm no need to tow the car to dealer to get it fixed so it's still drivable. Longterm oil will seep into flywheel/clutch therefore both need to be replaced. If RMS happens dealer has a tool to check if crank is out of spec. If within spec just RMS if out of spec new engine. My 99 996 leaked at 9k miles andd had 41k miles and never leaked from then on and I go to 10-12 DE's a year and drive it very hard(no garage queen here) . IF possible ask when they maeasure the crank how much out of spec it is. IF it's more closer then out of spec then RMS may come more often. Regards. Mike

POST 6Original post

Congratulations � the C4S is an awesome machine IMHO. I get some wind noise at speed that seems to come from the passenger side mirror. Can� say for sure but it is definitely noticeable.

POST 7Original post

It's tough to say without actually hearing it, but my '03 C4S, which has P-Zero tires, has become louder and louder from tire noise (it now has 8k miles) and probably could be described as a howl.

POST 8 / ORIGINAL POSTEROriginal post

Fishman: I drove the car today for 5 1/2 hours on a business trip. The noise is a howl at times but seems to be related to the type of pavement. On some surfaces it diminishes and on others (e.g. seal coated) it gets worse. I think I will have it checked out eventually but it doesn't appear to be a big problem. By the way, the trip was on a 2-lane highway and I had a great time - some parts are fairly remote, so no police. The car is wonderful. Corners? - what corners?

POST 9Original post

Glad to hear you're enjoying it. I'll be hunting for some new tires soon. Michelins, perhaps? I get a lot of rain...

POST 10Original post

Had the same problem with mine when I bought it, conti sport tires but they were worn really bad on the innermost tread block (totally smooth). Really bad highway drone made it hard to talk in the car. Replaced tires and it made a 100% improvement....BUT Beware! Make sure you get your alignment done when you get new tires. I didn't and my 6000 mile michelins were beginning to make noise also. Had the alignment done and both camber and toe-in were way off. Car sounds much quieter now, even though I've lost some life on my Michelins. Short answer, could be the tires, could be alignment, could be both.

POST 11Original post

I also just bought a '02 (996) and the road noise was awful. I had four new P-zero tires put on, and the noise virtually disappeared - I can actually hear the engine now! When you get new tires, be sure to get an allignment, or they will scuff immediately. Enjoy!

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