5 captured repliesDiscussion pagination complete · Source accounts, not a confirmed diagnosis
THIS DISCUSSION / SOURCE-DERIVED OVERVIEW
Discussion summary
YOUR RESEARCHManufacturer's Recommendation - 986 Forum - The Community for Porsche Boxster & Cayman Owners
Leading reported evidence
Recommend fluid
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
But Lexus doesn't require or recommend the fluid to be changed.
Manufacturer's Recommendation - 986 Forum - The Community for Porsche Boxster & Cayman Owners
Read full discussion summary
Leading evidence: 'Recommend fluid' (no explicit attributable resolution; this is a reported action or suggestion). Across 1 matching discussions, The most frequently discussed action is 'Recommend fluid' (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
I don't know if the mechanic is right about the fluid not being change causing the failure.
Manufacturer's Recommendation - 986 Forum - The Community for Porsche Boxster & Cayman Owners
Replace trans fluid
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
I've been replacing the trans fluid on all my Honda's, but I decided to go with the manufacturer's recommendation/suggestion.
Manufacturer's Recommendation - 986 Forum - The Community for Porsche Boxster & Cayman Owners
Replace valves and sensors
Suggestion or failed attempt
No successful repair reported for this finding.
0
Reported fixes
1
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 report an unsuccessful attempt
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.
Unsuccessful attempt · Original poster
He replaced the valves and sensors. We took it home, codes came back, took it back to him, and now he's still trying to figure out what is wrong.
Manufacturer's Recommendation - 986 Forum - The Community for Porsche Boxster & Cayman Owners
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.
5 eligible posts · 0 unverified posts · 1 discussions match the subject in their title or opening post.
986Forum: 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
After a week, he said he fixed it, and said the fluid hadn't been changed, which lead to this failure.
Hi guys,
There's a story I want to share with you and see what you think. My sister's Lexus is a 2006 GS300. According to the owner's manual, the transmission is sealed and needs no servicing or fluid replacement. I've been replacing the trans fluid on all my Honda's, but I decided to go with the manufacturer's recommendation/suggestion. Last month, at around 110,000 miles, the transmission took a dump. There were 2 codes saying some valves got stuck. We took it to the dealer, and they won't repair it, only replace it. We took it to our indy friend mechanic. After a week, he said he fixed it, and said the fluid hadn't been changed, which lead to this failure. He replaced the valves and sensors.
We took it home, codes came back, took it back to him, and now he's still trying to figure out what is wrong.
I know many newer cars are going to lifetime or extended life fluids. I don't know if the mechanic is right about the fluid not being change causing the failure. But Lexus doesn't require or recommend the fluid to be changed. What do you guys think?
The "lifetime fluid" is a selling point to make the car appear to need less maintenance. Every fluid will need to be changed at some timeframe in a car's life. No such thing as a lifetime fluid in machinery.
I think that the "Lifetime" that most auto manufacturers refer to is a matter of "to the end of warranty service period." They would prefer that we all buy new cars by the time our old ones reach 100k miles.
ZF makes the Tiptronics that are in the 986s and many other cars. Here is what they have to say:
clipped from their web document:
http://www.zf.com/media/media/document/brands_3/service_information/sitematrix~1/transmission/cars_4/englisch_3/modelluebergreifend_1/ZP_SI_Oelwechselkit_EN.pdf
...and I came across this letter while working on another car brand:
http://blog.********************************************* ***/wp-content/uploads/2012/03/ZF-oil-service-letter1.pdf
Many auto companies have revised their original lifetime service and brought it in line with the ZF recommendation.
So then shouldn't it be illegal for them to recommend something that could cause a premature failure (I'm sure this "premature failure" has already passed the warranty period)? However, currently, there's no way to prove that not changing the fluid according to their recommendation would cause a failure.
P.S. Just got an update from the mechanic. He can't fix it. He's willing to refund all the money, or we could pay him a little more to have a rebuilt transmission installed with a 1 year warranty.
This is a source reference. Confirm exact model applicability in the original material.
