As it turns out, I have an AISIN tranny on my 05 Cooper S Vert, with paddle shifters. I have been experiencing hard up/down shifting. I am now determined to drain the tranny, change out the filter and refilling it by using this guide: http://www.pelicanparts.com/techarticles/MINI/28-TRANS-Automatic_Transmission_Fluid_Change/28-TRANS-Automatic_Transmission_Fluid_Change.htm

Now, I need to re-adapt the tranny. Can it be done without software help? Disconnect the battery posts and short out the wires to drain any residual voltage from capacitors?

 

From post #481 in this thread:

https://www.northamericanmotoring.co...at-80k-13.html

The correct way to reset adaptions for your tranny is to use a programer. You can use the BMW GT1 or the NCS expert. There is a tranny adaption reset. That is the only way to reset it.

Same poster, post #471

there is adjustments for your valve body, Here is a cut and paste from sonnax. The adjustments were spot on for my sons car.

There are several reasons why you may need to adjust a clutch control valve:

Clutch pack clearance may be different than OE. Always check thickness of replacement steels and frictions.
Bonded pistons may be worn, allowing clutch pressure to leak.
Sealing rings may not be sealing correctly.
Slight wear in the valve body.
The most common shift/engagement complaints are:

Delay/bump into Reverse
2-3 Flare/bump and 4-5 flare
3-4 Flare bump or 3-4 Neutral
Harsh 1-2 and sometimes 5-6
The adjustment depends on how severe the problem is:

Delay into Reverse with a small flare on the 2-3 = K3/C3 turn adjuster counterclockwise 3/4 turn.
Delay/bump into Reverse, 2-3 flare & 4-5 flare = K3/C3 turn adjuster counterclockwise 1 1/2 turns.
3-4 Slight flare = K2/C2 counterclockwise 1 turn.
3-4 Flare/bump = K2/C2 counterclockwise 1 1/4 - 1 1/2 turns.
3-4 Neutral = K2/C2 counterclockwise 2-2 1/4 turns.
Firm 1-2 with no flare = B1 clockwise 3/4 - 1 turn.

TF-60SN

 

I have access to NCSEXPERT. I am hesitant on using it because I am not to familiar with it. Is there a link for the NCSEXPERT step-by-step process?

Also, is there a re-learning process much like for the CVT that is exhibited in this forum: https://www.northamericanmotoring.com/forums/how-to/220525-drivetrain-resetting-the-cvt-clutch-and-ratio-adaptations.html