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Oil/Antifreeze mixture

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

Discussion summary

YOUR RESEARCHOil/Antifreeze mixture

Reported or suspected cause

head is just cracked and can be repaired

Suggestion or failed attempt

No successful repair reported for this finding.

0
Identified cause
1
Suspected cause
0
Reported fixes
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 suspect a cause
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.

Suspected cause

Most likely the head is just cracked and can be repaired.

Oil/Antifreeze mixture
Frequently discussed work

Repair ." so you're going

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

You wrote: "Now I will probably sell the car once repaired." So you're going to dump possibly 15k or more in repair then sell it for maybe 20-25k if you're lucky?

Oil/Antifreeze mixture
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Leading evidence: 'head is just cracked and can be repaired' (no explicit attributable resolution; this is a reported action or suggestion). Across 1 matching discussions, the most frequently mentioned possible cause is 'head is just cracked and can be repaired' (1 discussions; 0 report identifying it and 1 suggest it). The most frequently discussed action is 'Repair ." so you're going' (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 · 16 captured posts examined · 0 partial discussions

Compare 4 other evidence results

Repair ." so you're going

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

You wrote: "Now I will probably sell the car once repaired." So you're going to dump possibly 15k or more in repair then sell it for maybe 20-25k if you're lucky?

Oil/Antifreeze mixture

Repair then sell it

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

You wrote: "Now I will probably sell the car once repaired." So you're going to dump possibly 15k or more in repair then sell it for maybe 20-25k if you're lucky?

Oil/Antifreeze mixture

Run like a champ

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

Doug had this problem, he had the head crack welded and from what I understand is still running like a champ...

Oil/Antifreeze mixture

Test coolant system at operating temp

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

Pressure test coolant system at operating temp to locate leak,

Oil/Antifreeze mixture
Frequently discussed actions (4)

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

Repair ." so you're going

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

You wrote: "Now I will probably sell the car once repaired." So you're going to dump possibly 15k or more in repair then sell it for maybe 20-25k if you're lucky?

Oil/Antifreeze mixture

Repair then sell it

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

You wrote: "Now I will probably sell the car once repaired." So you're going to dump possibly 15k or more in repair then sell it for maybe 20-25k if you're lucky?

Oil/Antifreeze mixture

Run like a champ

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

Doug had this problem, he had the head crack welded and from what I understand is still running like a champ...

Oil/Antifreeze mixture

Test coolant system at operating temp

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

Pressure test coolant system at operating temp to locate leak,

Oil/Antifreeze mixture
Reported and suspected causes (1)

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

head is just cracked and can be repaired

No successful repair reported for this finding.

0
Identified cause
1
Suspected cause
0
Reported fixes
Read evidence and context
Discussions that suspect a cause
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.

Suspected cause

Most likely the head is just cracked and can be repaired.

Oil/Antifreeze mixture
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.

16 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: 20261026T091943Z · outcome-qualification-6. Deterministic extraction; no AI model inference. How we use sources

POST 1 / ORIGINAL POSTEROriginal post

I posted a few weeks ago that I was having a overheating issue with my 99' c4. The car was running fine. I haven't driven it in a few weeks since the initial post, so I decided to have it towed to a Maryland shop (Autobahn Pro) who determined that there is antifreeze in the oil and as a result, I believe he said " the number "1" head is all likely warped. He suggested that I take it to the dealer for a second opinion, and thinks I may need a new/rebuilt engine costing approximately 4/5 thousand. I need to make a decision soon, so any feedback would be greatly appreciated. Thanks

POST 2Original post

Search for intermix and you'll find a few threads with good info. Most likely the head is just cracked and can be repaired. Replacement motors from the dealer I believe are going for $17k or more.

POST 3Original post

Doug had this problem, he had the head crack welded and from what I understand is still running like a champ...

POST 4Original post

Good info from post 2 & 3, not so much from your former shop, these heads crack way before they warp. I will add to get all the oil out of the coolant system NOW as the oil eats the hoses it comes in contact with. Find a shop that knows how to do this properly with the right cleaner, it takes hours to do this properly but this is no time to skimp on the process. Pressure test coolant system at operating temp to locate leak,

POST 5 / ORIGINAL POSTEROriginal post

Befuttled! Just found out from a dealer that there is a cracked cylinder wall, and I will need a new engine costing (15/17 grand) way more than I want to spend. The tech recommends new opposed to used. Needless to say, but I was hoping/praying for a different result. Now I will probably sell the car once repaired. Any rebuilt engines out there, please let me know... Thanks

POST 6Original post

Sorry to hear about the cylinder. By chance was your oil looking like milkshake before you took it into the dealer?

POST 7Original post

Quotes source post: 9622253

Sorry to hear... The dealer always says replace and not fix when it comes to trannies and engines. Probably should have tried another indy for the 2nd opinion. Sorry, I didn't get a chance to call. I've been hyper busy this weekend.

POST 8 / ORIGINAL POSTEROriginal post

b8 rdc... Not the oil itself, but the coolant resovior. PGC... Not a problem! You do present an interesting thought - who does one trust when it comes to auto repair?

POST 9Original post

Quotes source post: 9622318

I don't trust anyone but most if not all dealers perform no real internal engine work nor tranny work for whatever reason. I forget the MD shop I used to go to.

POST 10Original post

Quotes source post: 9622253

I have 1 in stock, PM me if interested.

POST 11Original post

You wrote: "Now I will probably sell the car once repaired." So you're going to dump possibly 15k or more in repair then sell it for maybe 20-25k if you're lucky? Really? I would think it would make better financial sense to cut your losses and sell it for parts, no?

POST 12Original post

Quotes source post: 9622384

What causes this to occur, btw? Coolant system failure somewhere?

POST 13 / ORIGINAL POSTEROriginal post

I'd really like to keep the car, however! Selling parts - I never thought about that, but it's a possibility. Will followup with Byprodriver regarding his sale. What's considered a "reasonable" price for a used/rebuilt engine? Thanks again...

POST 14Original post

Quotes source post: 9623363

The basic issue is the 3.4 has the thinnest cylinder walls of any Porsche engine. Thats why they had to redesign the case for the 3.6

POST 15 / ORIGINAL POSTEROriginal post

Actually, I don't know what cause the problem, but what I do know is one evening suddenly the car started overheating - I drove it home (approx 10 min.) and that was it. Do you have the 3.4 or 3.6? Email me at [email removed] with the specifics. Thanks

POST 16Original post

If it's "just" a cracked head, are you sure you need a new motor? As was mentioned, Doug/Dharn55 had his cracked head repaired for ~$500 IICR, plus labor if you don't do it yourself. https://rennlist.com/forums/showthre...ferrerid=38158

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