32 captured repliesDiscussion pagination complete · Source accounts, not a confirmed diagnosis
THIS DISCUSSION / SOURCE-DERIVED OVERVIEW
Discussion summary
YOUR RESEARCH996 Engine Mystery
Leading reported evidence
Replace after settlement
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
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0 discussions have direct query context; 0 report a fix in that context. Other evidence may inherit the discussion’s subject.
Performed · outcome unconfirmed
You know the engine was replaced after settlement and before you owned it.
Leading evidence: 'Replace after settlement' (no explicit attributable resolution; this is a reported action or suggestion). Across 1 matching discussions, The most frequently discussed action is 'Replace ?' (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.
Replace engine didn't enter the service record into carfax
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
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Performed · outcome unconfirmed · Original poster
Evidently the shop who changed the engine didn't enter the service record into CarFax.
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
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Performed · outcome unconfirmed · Original poster
I know that the engine was replaced by Porsche as part of their settlement by the engine number M96/03AT66566575.
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.
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Performed · outcome unconfirmed · Original poster
The only thing missing is a record of when the engine was changed.
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Discussions that contain suggestions
1
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Suggestion
With 15k miles on the car in November 2005 maybe something came up in the service,15K oil change?, that precipitated an engine swap?
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Suggestion
So if the engine was replaced by Porsche due to a claim under the Settlement somewhere around those times, then one could contrast the mileage of the car with the engine hours read by Durametric.
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.
32 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.
Just acquired a 2003 996 (with full awareness of related IMSB issues). I know that the engine was replaced by Porsche as part of their settlement by the engine number M96/03AT66566575. What I am not able to discover is the date this service was performed due to the lack of records (I'm 3rd owner and 2nd owner didn't receive them). I contacted Porsche directly and they told me the service records would only be with the dealer who performed the service since they do not have a global service database. I called all the dealers who I knew performed some service on this car over its life and nobody can locate this record. The most likely candidate didn't keep electronic records for more than 10 years.
I would like to solve the mystery to get a closer idea of how many actual miles are on the engine. It would also help me determine if this engine is able to have the simple IMS procedure done (proactively) rather than splitting the engine. Does anyone have an idea to help with my questions?
All: Is the hour count reset when a new engine is installed?
If so, OP could tell with a Durametric how many hours the engine has been in service since it was replaced.
It is an interesting question. The Settlement Suit settled in March 2013 and the deadline for filing a claim was October 2013. So if the engine was replaced by Porsche due to a claim under the Settlement somewhere around those times, then one could contrast the mileage of the car with the engine hours read by Durametric. That would solve the question "Is the hour count reset when a new engine is installed?" and also an approximate how many miles are on the engine. Guess we are going to have to start a engine hour/mileage table for reference.
So out of curiosity I just went out and pulled my numbers:
1999 C2
134,687 miles
Number of Ignitions Range 1 5485/2973.4 h
Operating Hours 4446.1
So, mileage/operating hours is 30.293 or 30.293 miles per operating hour
Or the other way around Hours/Mileage is 0.033 hours per mile
No. It will tell you total engine operating hours. Then take the odometer mileage and divide. Let us know what you find. And I was hoping someone else would do the same for contrast. Since mine is a DD I spend more time idling at stoplights than actually getting anywhere. Ten seconds of excitement, 2 minutes of waiting.... repeat I have some good highway mileage though.
Interesting answer from Porsche and different than what my Porsche dealer states. I had a replacement engine installed in April of 2013 and only received a receipt for the labor. When I asked about paperwork for my records I was told it would not be issued because it was recorded in the warranty database which is global to all authorized Porsche dealers.
The warranty info is global because when the C4S was delivered from CA my local dealer was able to retrieve the records for warranty work.
Hmmm. The mystery deepens. I spoke with 3 dealerships who were unable to look up anything for my car, 2 of which had performed other maintenance on it which they were able to see details on (and which were available on CarFax). I also called 1-800-PORSCHE and they are the ones who told me I could only get this information from the actual dealer who performed the replacement. My local Porsche dealer told me that he wishes Porsche's computer system worked the same as Audi's which has a global records database he can access.
Just hung-up with 1-800-Porsche (thought I'd try again). This time I was told that all service records (warranty or otherwise) are considered private and they cannot disclose anything to me other than what is publicly available on CarFax.
The first owner had the car just short of 10 years (52K miles). They had the 15K service done November 2005 and the 60K service done April 2012 (10K early). Lots of clues but nothing to really work with.
I have the complete CarFax (based on VIN) and a nice collection of matching service records. The only thing missing is a record of when the engine was changed. That is the mystery I'm trying to solve. Evidently the shop who changed the engine didn't enter the service record into CarFax. Perhaps something Porsche didn't want to happen.
Curious if anyone else who knows their engine was replaced by Porsche has looked to see if that record exists on CarFax.
By looking at the time-line you should be able to get close. You know the engine was replaced after settlement and before you owned it. Why not just ask the first owner? The replacement engine should be the least of your worries. You have plenty of other 996 issues to stress about now.
Have you tried visiting a dealer and asking them to run the vin for you? Makes sense to me any authorized dealer would need to have access to warranty information and I personally witnessed my dealer enter the vin and not only give me the warranty info but the build sheet and original invoice. This is my regular dealer so perhaps the fact that I have a relationship with them helped.
Yes, I went into my local dealer (not one who has ever performed work on the car since I live 2 states away) and gave him the VIN. He wasn't able to look up anything on the car. He told me that if it was an Audi he would be able to see everything done to it by any Audi dealer but that Porsche doesn't offer the same system. I did call the 2 dealers the original owner used an neither of them could help. I guess I could stalk the original owner since his name is shown on some of the service records I have, but hoped to find a different solution before bothering him.
John,
Please post any progress. I have the exact same situation and have been unable to find any record of when the motor was replaced. I also have a CarFax as well as tracking down dealers in both FL and OH that performed maintenance but nothing on the engine replacement.
I get that it may not be that big of deal, however if I have a better of idea of how many miles are on the engine I can better plan the timing of future maintenance.
Well, make a few safer assumptions and then pick a number. Chances are you're going to be within 10-20k miles which should be enough of a ballpark for your needs.
I'm going to throw out it was replaced at 35k miles.
Seems like the best choice. I also went through something similar with my 2002 C4S that I believe I am at least the 4th owner. The factory exchange engine serial number shows it as a 2005 date coded engine. If I look at the Carfax registration and mileage history, in 2005 the car had about 35K miles on it. If that was the earliest the engine would have been replaced and the car now has 67K miles, the engine would have 32K miles worst case. It may have less but I am using that number to plan for preventative maintenance. Good luck!
So replacement engine #M96/03AT66566575 =
M96/03 engine type
6 = number cyls.
6 = normally aspirated
5 = 2005 MY engine so rebuilt some time 2005 or later. Replacement rebuilt engines assembled in 2005 most likely had BIG bearings??
66575 = Sequential? serial number
According to "Porsche 996 The Essential Companion" there were 68,095 MkII 996 NA cars built (out of 89,706 total 996, 21,611 were Turbo, Gt2 & 3) of which 1821 were 2005 996MkII NA catrs, out of 4012. The 997 took over and 24,596 additional cars were produced in 2005.
Your NA engine serial #66575, if they numbered engines sequentially, probably was ~301st engine for 2005, so early 2005 engine back for rebuild. Your engine swap probably couldn't have been before mid-late 2005. With 15k miles on the car in November 2005 maybe something came up in the service,15K oil change?, that precipitated an engine swap?
[QUOTE=fpb111;12621956]So replacement engine #M96/03AT66566575 =
M96/03 engine type
6 = number cyls.
6 = normally aspirated
5 = 2005 MY engine so rebuilt some time 2005 or later. Replacement rebuilt engines assembled in 2005 most likely had BIG bearings??
66575 = Sequential? serial number
According to "Porsche 996 The Essential Companion" there were 68,095 MkII 996 NA cars built (out of 89,706 total 996, 21,611 were Turbo, Gt2 & 3) of which 1821 were 2005 996MkII NA cars, out of 4012. The 997 took over and 24,596 additional cars were produced in 2005.
Your NA engine serial #66575, if they numbered engines sequentially, probably was ~301st engine for 2005, so early 2005 engine back for rebuild. Your engine swap probably couldn't have been before mid-late 2005. With 15k miles on the car in November 2005 maybe something came up in the service, 15K oil change?, that precipitated an engine swap?
I'm also generally wondering about engine history. My 3.4 has an A/T designation but the s/n doesn't really align with fbp111's breakdown. M96/0166W10052AT - looks manually stamped. W?
It's in a 99. Confirmed dual row (I swapped out the IMS already). Runs great. Just wondering! Not keeping me up at night!
