Hello All!
So I know there is an adaptation clearing procedure in our sdd , but I could not find a procedure for adaptation procedure. Or maybe it just relearns on its own?
Any info apriciated!

 

I've done this procedure twice, once after changing the transmission fluid and valve gaskets,
and again after changing my differential fluid (downshifts felt a little rough prior to changing).

After a short number of miles driving you will notice that it does indeed re-learn once the adaptation values
are cleared, and clearing these values is a MUST for ZF transmissions. Must be done in SDD after servicing.

You will notice a difference right away after clearing.

 

The Jaguar Transmission Technical Manual published in 2005 says for the ZF 6HP26:

Service Procedures

Adaptive Drive Cycle
After TCM reprogramming, it is advisable to perform
an adaptive drive cycle.

General Conditions:
• Make sure that the A/C is switched off and that Sport
mode is not selected.
• The transmission oil temperature must be warmer
than 60°C (140°F). The vehicle should be warmed
up by driving with various speeds and loads in
normal mode.
• The cycle must be performed at least five times.

Normally Aspirated Vehicles
1. Light throttle upshifts up to 80 km/h (50 mph) with
all shifts occurring between 1300 and 1800 rpm
2. Coast down with light brake to standstill
3. Wait at standstill in drive with the footbrake applied
for at least 15 seconds

Supercharged Vehicles
1. Light throttle upshifts up to 80 km/h (50 mph) with
all shifts occurring between 1000 and 1500 rpm
2. Coast down with light brake to standstill
3. Wait at standstill in drive with the footbrake applied
for at least 15 seconds

 

Thank you! Might be just what I need , hope it applies to 08 car as well. After clearing adaptation , transmission behaves weird , like doesn't rev match downshifts and harsh shifts down during slow downs. Will try adaptation procedures tomorrow

 

These are symptoms of what some might describe as the ZF lurch, especially harsh downshift when rolling to a stop. When completely stopped Can you feel it down shift into first? In some cases can feel as if you got bumped from behind.

 

Yes, but I never had this issue until I went and cleared adaptations through SDD , so I'm sure it has to be readapted again

 

Agree, it's a software issue. I believe they recommend a reflash of both the PCM and the TCM and then the driving instructions listed above.
When I bought my 08 XK earlier this year I had a four hour drive home from Maryland and the car drove perfect until about an hour and a half or two hours in to the drive when I hit traffic and had to constantly break and Excel. It started Shifting the same way as you described to the point that when I got the bump in the back feeling.
After researching this for hours I read people try to drive very gingerly to eliminate it but that didn't work. What I found was that breaking a little firmer and actually taking off a little bit more aggressively Smooths out the shifting tremendously. Been 5000 miles now and still shifting much smoother. Can sometimes feel a slight two to one downshift but nothing like before.
Also, just as a side note, I think I've read every post on this issue and oddly a high percentage of XK complaints are from model year 2008.
But this is not a jaguar issue, it's a ZF 6 hp and adaptive learning transmission issue... BMW, Jaguar, Maserati, Etc.
Please post back with your experience.
Thanks

 

just an update ! Did I adaptions as per instructions above , thanks for those u102768 ! it worked flawlessly! transmission is back to normal shifts are smooth and crisp when pushed hard downshifts are matching perfectly! No hard shift from 2nd to 1st anymore !!

 

Great to hear!

 

Hello: Hey guys just drop a transmission in my jag XF supercharged v8 6hp26 RWD . Like to know do I need it to be programmed, or will it relearn own it's self. Need help. Let me know.

 

You would have better luck if you posted this in the XF forum, this is the XK forum.
You state "a transmission". What was it out of, or was it new?

 

First; old adaptation clearing not a bad idea and adaptation relearn procedure I would say is a must. Should be the same procedure as for the XK above with zf6