7 captured repliesDiscussion pagination complete · Source accounts, not a confirmed diagnosis
THIS DISCUSSION / SOURCE-DERIVED OVERVIEW
Discussion summary
YOUR RESEARCHHelp with Oil leak. Update
Leading reported evidence
Replace i removed the sump
Performed · outcome unconfirmed
No successful repair reported for this finding.
0
Reported fixes
0
Unsuccessful attempts
1
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Read evidence and context
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Performed · outcome unconfirmed · Original poster
I removed the sump to replace the selector input shaft oil seal, the sump was replaced as it was warped, it is not painted and new from OPC, a new gasket was fitted and the oil filled as instructions.
Leading evidence: 'Replace i removed the sump' (no explicit attributable resolution; this is a reported action or suggestion). Across 1 matching discussions, The most frequently discussed action is 'Check lvl afterwards' (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.
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1
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Suggestion
i very much doubt it will drain the box but catch what comes out and reuse it when you check the lvl afterwards .
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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Suggestion · Original poster
I did indeed fill through B in the image and use an IR thermometer to check the temperature.
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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Suggestion
The oil is so dam clean i new it had to be fresh oil !
Discussions that performed work without a confirmed outcome
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Performed · outcome unconfirmed · Original poster
I removed the sump to replace the selector input shaft oil seal, the sump was replaced as it was warped, it is not painted and new from OPC, a new gasket was fitted and the oil filled as instructions.
Replace selector input shaft oil seal, the sump was
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
I removed the sump to replace the selector input shaft oil seal, the sump was replaced as it was warped, it is not painted and new from OPC, a new gasket was fitted and the oil filled as instructions.
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.
911uk: 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: 20261027T042512Z · outcome-qualification-6. Deterministic extraction; no AI model inference. How we use sources
You have recently had work done on the tip box .. the sump has been painted .
The fluid has also been changed and probably in the last 2 weeks .
This may be residue from that work .. it may be slightly over filled or the nut isn't tight ..
If my memory is correct its also a ZF box .
Hi DeMort. I removed the sump to replace the selector input shaft oil seal, the sump was replaced as it was warped, it is not painted and new from OPC, a new gasket was fitted and the oil filled as instructions.
This was done about 5 months ago but only done about 500 miles since.
The nut is tight and the oil is not running down to it as the top of it going into the case is dry. The sump gasket is dry and I cant see any sign of oil any where else. The box is a Mercedes 722.6 not ZF.
I am guessing the nut seal is leaking, can this nut be removed to reseal it or will it drain the box? or am I barking up the wrong tree?
Regards. Mike.
The oil is so dam clean i new it had to be fresh oil !
I'm afraid i don't know everything and this is something i'm unsure of ..
i believe its the fill tube or a check tube .. there is a seal under that nut and you will get some fluid out when you remove it.
i very much doubt it will drain the box but catch what comes out and reuse it when you check the lvl afterwards .
seal i believe is no. 10 here ...
https://www.deroure.com/diagrams.asp?MAK=3&MDL=25&TBL=2573&SMA=&SMO=0&ST=&SC=0
EDIT ..
Instructions are here and scroll down .. its a the fill tube but i think most of us just use B in the image .. the hex on the side of the sump .
https://www.renntech.org/topic/31074-atf-filling-procedure-on-my02-tiptronic/
Thanks deMort, you are a gem. I did indeed fill through B in the image and use an IR thermometer to check the temperature. I will order the seals and report back.
Thanks again. Mike.
Update
deMort, You were spot on with this issue. The leak was indeed coming from the fill tube and when I removed the cap their was no washer fitted also the valve inside was leaking so I replaced the valve, cap and the two crush washers and refilled the oil.
Thanks deMort.
Mike
