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post #1 of 15 Old 10th April 2019, 08:33 PM Thread Starter
gpeterson
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clutch adaptation - risk?

I have a 2007 M5 with 106k miles. I get the clutch position deviation code (can't remember the number, will post an update) and feel like things don't work as smoothly as they should. Sounds like it could be the release bearing sticking but I don't feel like dropping the transmission and buying a new clutch yet if I don't have to. I'm thinking about replacing the SMG CHF11S and read (from @jcolley ?) that adaptation should be performed afterwards. I believe I also read adaptation could fail if there are issues with the clutch/flywheel/release bearing/pivot pin/etc.

Is adaptation necessary when changing the fluid? Should I risk it? Isn't bleeding a separate procedure?

Could a 2nd SMG ECU be a backup plan? (install ECU, adapt, put old ECU back if adaptation fails)
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post #2 of 15 Old 10th April 2019, 11:20 PM
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Bleeding is separate procidure, you can run as many time as you need without any risk. Clutch adaptation is risky cause you can find yourself in situation when have to change clutch components in order to complete adaptation.

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post #3 of 15 Old 10th April 2019, 11:26 PM
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What @Pav said

If you're having issues and codes it's better to fix the problem before running the adaption. If it fails you'll be forced to fix it, rerun and pray till it works, or tow it to a shop.

No need to adapter after changing fluid, but then I also don't think changing the fluid would do anything other than make a mess and introduce the possibility of debris.

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post #4 of 15 Old 11th April 2019, 12:22 AM Thread Starter
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Anyone have thoughts on running adaptation with a spare SMG ECU installed? Seems like that may be a safe way to try adaptation without the worry of making the car inoperable.
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post #5 of 15 Old 11th April 2019, 01:25 AM
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Minus the cost nothing wrong with that approach.

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post #6 of 15 Old 11th April 2019, 03:52 AM
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Quote:
Originally Posted by Ferris View Post
No need to adapter after changing fluid, but then I also don't think changing the fluid would do anything other than make a mess and introduce the possibility of debris.
This ^

Quote:
Originally Posted by Ferris View Post
Minus the cost nothing wrong with that approach.
And this ^
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post #7 of 15 Old 12th April 2019, 06:35 PM
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Interested in this as well. I would like to replace the fluid..Need more confirmation if that can be done with no ill effects and no adaptation needed.
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post #8 of 15 Old 13th April 2019, 02:51 PM
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post #9 of 15 Old 18th April 2019, 04:41 AM
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Wait, so running an adaptation can brick my ECU if something doesn't check out? Surely there's a way around this, like spoofing inputs from sensors, or SOMETHING?

EDIT: Maybe I'm overreacting. If something is far enough out of spec that the TCM is throwing a code, it probably needs to be resolved to prevent a more serious problem later on (dependent upon how conservative the "acceptable" ranges for the respective measurements are, I suppose).

Last edited by Crimson1; 18th April 2019 at 05:07 AM.
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post #10 of 15 Old 18th April 2019, 05:37 AM Thread Starter
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Quote:
Originally Posted by Crimson1 View Post
Wait, so running an adaptation can brick my ECU if something doesn't check out? Surely there's a way around this, like spoofing inputs from sensors, or SOMETHING?

EDIT: Maybe I'm overreacting. If something is far enough out of spec that the TCM is throwing a code, it probably needs to be resolved to prevent a more serious problem later on (dependent upon how conservative the "acceptable" ranges for the respective measurements are, I suppose).
Temporarily "brick" your car due to exposing underlying mechanical issues/wear that must be fixed, not brick (int the traditional sense) the TCU.
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