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Discussion summary
YOUR RESEARCHHow to Reflash Tiptronic TCU?
Leading reported evidence
Disconnect battery
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Suggestion
I'm not sure where the TCU is on your car....but if you just disconnect it for a period of time (or disconnect the battery which will also reset the ECM) it will have to re-learn.
Leading evidence: 'Disconnect battery' (no explicit attributable resolution; this is a reported action or suggestion). Across 1 matching discussions, The most frequently discussed action is 'Disconnect battery' (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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Suggestion
The OP is talking about resetting adaptation values which durametric can perform
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Suggestion · Original poster
I know my BMW can be reset by turning on ignition, then stomping on gas for 30 seconds, turning off ignition for 30 seconds, then starting the car...
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Disconnect battery
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Suggestion
I'm not sure where the TCU is on your car....but if you just disconnect it for a period of time (or disconnect the battery which will also reset the ECM) it will have to re-learn.
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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.
Suggestion
I'm not sure where the TCU is on your car....but if you just disconnect it for a period of time (or disconnect the battery which will also reset the ECM) it will have to re-learn.
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Suggestion
Reset should be fairly trivial with piwis (maybe a minute once they have it plugged in?) and it sounds like a durametric can do it as well, means removing any adaptive behavior.
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8 eligible posts · 0 unverified posts · 1 discussions match the subject in their title or opening post.
Rennlist: 1 discussions
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Generation: 20261026T212127Z · outcome-qualification-6. Deterministic extraction; no AI model inference. How we use sources
So I went on a bit of a spirited drive today, and going into 3rd around a sharp corner I heard a grinding noise. looking though another forum I found this....
There was a technical Bulleting TSB 3701 regarding this
"The reason for this is the adaptation of the torque converter lockup clutch in the Tiptronic control unit. If the car is driven in a restrained manner or is frequently driven in stop-and-go traffic, the Tiptronic control module adapts itself to unfavourable values that cause the grinding/rattling noises.
The "fix" is to install a new Tiptronic control unit with modified software. The newer control module has the part number 996.618.180.04 (or greater). The latest part number 996.618.180.07 or newer. This TCU ensures that it never learns this 'bad behaviour'. The other cheaper route is to reflash TCU and drive more aggressively..."
So, how do I go about reflashing the TCU? will a durametric do it (I was thinking of getting one anyways), or do I need to go to a Porsche Dealer/Indy? I know my BMW can be reset by turning on ignition, then stomping on gas for 30 seconds, turning off ignition for 30 seconds, then starting the car... anything like this for Porsche?
I'm not sure where the TCU is on your car....but if you just disconnect it for a period of time (or disconnect the battery which will also reset the ECM) it will have to re-learn.
Here is more info from an early thread.
https://rennlist.com/forums/996-foru...re-change.html
Apparently this TSB only applies to 996.2 models and 996.1 turbos.
Maybe I'm totally off base here (used to working with Audis and Vagcom), but how would durametic help him?
He needs the software to flash, that's something he'd have to get from Porsche, no? Even if durametric can do the flashing, I don't see how he'd be able to get the firmware from anyone except a dealership and they obviously won't give you the file.
Fair question. The OP is talking about resetting adaptation values which durametric can perform
I had the same symptoms - dealer reset using piwis at the time because I had not yet bought a durametric
http://www.renntech.org/forums/topic...-higher-gears/
Our tiptronic was hesitating slightly in 2nd, whether in auto or automanual mode. Two different indies told me they didn't have the software to reset TCU. Dealer did it for a reasonable 1 hr labor charge. No problems since. (18 mos) GL
Just to be clear, a 'reflash' is very different than a reset of learned memory or clearing adaptations...
Reflash typically means loading on newer or modified programming in to the module, and obviously you would need to have the actual software to load in addition to the equipment for loading it. Not sure if 996 generation TCU's are even capable of a reflash which may be why they were suggesting replacement of the module in the TSB.
Reset should be fairly trivial with piwis (maybe a minute once they have it plugged in?) and it sounds like a durametric can do it as well, means removing any adaptive behavior.
If it is an adaptation issue from overly mellow driving, you can probably just drive it very aggressively and it will gradually learn the new behavior, but it won't be as quick as resetting.
This is a source reference. Confirm exact model applicability in the original material.
