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Engine-out Maintenance Recommendations

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

Discussion summary

YOUR RESEARCHEngine-out Maintenance Recommendations

Leading reported evidence

Replace about 40k miles ago)

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 · Original poster

(Clutch was last replaced about 40k miles ago)

Engine-out Maintenance Recommendations
Frequently discussed work

Check fuel lines

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 fuel lines for cracks or other signs of aging/wear.

Engine-out Maintenance Recommendations
Read full discussion summary

Leading evidence: 'Replace about 40k miles ago)' (no explicit attributable resolution; this is a reported action or suggestion). Across 1 matching discussions, The most frequently discussed action is 'Check fuel lines' (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 4 other evidence results

Replace by the po at 94k miles and showed wear

Performed · outcome unconfirmed

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 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

Mine were replaced by the PO at 94K miles and showed wear.

Engine-out Maintenance Recommendations

Check fuel lines

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

Check all fuel lines for cracks or other signs of aging/wear.

Engine-out Maintenance Recommendations

Replace )

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

Water pump (still functioning, but seems like an opportunistic change)

Engine-out Maintenance Recommendations

Replace brake flushes, filters, etc.

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

It came with a long service history of routine servicing � oil changes, brake flushes, filters, etc., but with the high mileage, in addition to the IMS, RMS and clutch, I want to replace:

Engine-out Maintenance Recommendations
Frequently discussed actions (7)

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

Check fuel lines

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 fuel lines for cracks or other signs of aging/wear.

Engine-out Maintenance Recommendations

Replace )

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

Water pump (still functioning, but seems like an opportunistic change)

Engine-out Maintenance Recommendations

Replace about 40k miles ago)

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 · Original poster

(Clutch was last replaced about 40k miles ago)

Engine-out Maintenance Recommendations

Replace brake flushes, filters, etc.

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

It came with a long service history of routine servicing � oil changes, brake flushes, filters, etc., but with the high mileage, in addition to the IMS, RMS and clutch, I want to replace:

Engine-out Maintenance Recommendations

Replace by the po at 94k miles and showed wear

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

Mine were replaced by the PO at 94K miles and showed wear.

Engine-out Maintenance Recommendations

Replace gaskets/o rings

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

I would leave the oil cooler alone and only replace the gaskets/O rings.

Engine-out Maintenance Recommendations

Use same type of hose clamps

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

I would also purchase the factory coolant tank over the other tanks available and re-use or use the same type of hose clamps.

Engine-out Maintenance Recommendations
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: 20261027T000231Z · outcome-qualification-6. Deterministic extraction; no AI model inference. How we use sources

POST 1 / ORIGINAL POSTEROriginal post

Looking for recommendations on engine-out maintenance opportunities. Car is a 2004 C4s with 93,000 miles. Original IMS and RMS. I purchased the car a year ago and plan on keeping and enjoying it for many years. It came with a long service history of routine servicing � oil changes, brake flushes, filters, etc., but with the high mileage, in addition to the IMS, RMS and clutch, I want to replace: IMS (LN Engineering, but on the fence about oil fed solution kit or retro fit kit) RMS clutch, bearing, etc. (Clutch was last replaced about 40k miles ago) Engine mounts Transmission mount Plugs Coil packs Oil Cooler AOS Water pump (still functioning, but seems like an opportunistic change) Coolant hoses (ease of access w/ engine out) Coolant tank (not leaking, but seems like an inexpensive item w/ engine out) Thermostat Serp belt Additionally, this is a chance to clean and detail the engine compartment. I have never bore scoped the engine, but it runs very strong, no ticking, no smoke on cold starts, no leaks, bottom of the engine is clean/dry, headers are in good shape, no upgrades have been done � its like it was in 2004, but with 93,000 miles. Any other recommendations? Thanks in advance!

POST 2Original post

I would leave the oil cooler alone and only replace the gaskets/O rings. Also, everything except the oil cooler that you've listed can be easily done with the engine in the car and the transmission pulled.

POST 3Original post

Check all fuel lines for cracks or other signs of aging/wear. Also, I would do the fuel injectors if they're original.

POST 4Original post

go with the UAOS and do the LN Solution and the LN water pump with low temp thermostat.

POST 5Original post

I would also purchase the factory coolant tank over the other tanks available and re-use or use the same type of hose clamps. I expect rubber hoses to deteriorate over time, but I often wonder what type of massagist that works in the engineering department designed those tanks, and all of the glorious plastic caps, connectors, and assorted plastic pieces that consistently break, fail to function, and are difficult to replace.

POST 6Original post

I'd add the plastic timing chain/variocam wear pads. They are typically 100k wear items. Mine were replaced by the PO at 94K miles and showed wear.

POST 7Original post

What's your budget $$$, and are you DIY'ing? Do the IMSS and UAOS then see how much money you got left for "other things" !! (most can be done with engine in)

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