Hi Guys,
Does anyone know how to reset the transmission on the 722.6 box. I would like it to be a bit more aggressive than it is. I heard resetting it and making the first 40 shifts quicker (e.g. heavy pedal) it will re learn your driving habits?

Thanks.

 

You can perform a hard reset on the car itself which will reset the TCM. to do this remove battery ground cable, then hold said ground cable on positive battery terminal for 15 secs, re-att ground cable. Reset window limits.

If you truly want better shifts you can do as I and a few others have done and replace the shift solenoids (original brown tops) with the Blue Tops which have a larger orifice. There are a few threads on this so try a search.

 

Reset Transmission Adaptive Shifting - How to Programming Instructions DIY - Mercedes Medic

 

I read somewhere recently that Jag did not utilise the adaptive modes for the Mercedes box and the jag TCU is limited to normal and sport. Can anybody confirm if this is true.

 

I'm not sure the Link above would work on the x100, since implementation of the ECU to TCM is different than mercedes. A hard reset will reset all learned behaviour if so inclined.

 

I found the article l was looking for. Author is Paul Frere, don't know him or when it was written but he states " jaguar has also chosen not to incorporate Mercedes Benz's adaptive facility/instead, two fixed programs are provided"

 

I have blue tops, as well as other tranny/TC mods, so 722.6 is very harsh if make adaptation reset. Gear changes are like: click, click , click. After 1000km shift smootness is much better for daily driving. The linked trick has worked for me as well as adapation reset made with IDS.

 

Resurrecting this older post as I am doing a full 722.6 transmission service...

Does the XKR 722.6 have adaptation or is it just normal and sport mode? Is there any kind of reset that is necessary after a service? Anything else to be aware of?

TIA

 

Seems to be conflicting information available but l recall reading somewhere that the original MB adaptive function wad dropped by Jaguar.
This trans TCM also uses a non volatile memory and will retain all settings even if if power is disconnected.

 

Here's a snip from page 90 of the Service Training Course INTR / Introduction to Jaguar dated 10/01/2002:



I'm attaching the manual for reference.

The TCM is the same Siemens module used by Mercedes-Benz but programmed to comply with the Jaguar VCATS. Note the Mercedes-Benz and Jaguar logos on the unit. It seems unlikely that Jaguar would have opted to reduce or disable the adaptive capabilities of the transmission control system. Since this is handled by the TCM, what would be the point of limiting this functionality?



To YYC guy, like others here, I have replaced the brown-top solenoids in my XKR transmission with the faster-shifting blue-top solenoids, and it did make a noticeable difference in shift speed. I also drive with Sport Mode engaged except on wet roads.

It may be possible to clear the adaptations in your transmission, but I can't recall whether this is possible with IDS or a bidirectional scan tool or by other means. But as others have mentioned, the TCM should adapt to your driving style in only a few days of driving, so clearing the adaptions may cause the transmission to feel different briefly (usually it will feel uncertain and clunky on some shifts as it learns how to shift smoothly again), but the end result is that in a few days it will shift just like it does now.

Have you changed your fluid, filter and electrical connector sleeve? Fresh fluid set at the correct level will often help an old transmission feel "hooked up" again.

Cheers,

Don

 

clutch adapts can be reset with ids or the manual way

 

Which is... ?

 

It appears there is a link to the 'manual' procedure provided by XJR-99 earlier in the post. Can anyone confirm that this is in fact the procedure for the XKR?

 

I finally received my VCM and was hoping someone could walk me through how to reset the TCM adaptations in IDS.

TIA