2005 XJ8 Rough shift 1-2 Occasional hang-up slow shift 2-3 3-4. Mileage 127,000

I can live with. Probably cure worse than disease. Your thoughts?

 

First thing I'd do is change the transmission fluid and filter (unless you know for sure that it's been done in the last few years/ ,000 miles). For some years now ZF's official advice is to change the fluid every 50-75,000 miles, or 8 years (whichever occurs first).

I had mine changed at 78,000/9yrs and it cured some 'bumpiness' in shifts which was starting to become apparent.

 

I had the same symptoms on mine at 70,000 miles. I changed the transmission pan, fluid and all of the seals I could get to. The problem has now gone away. ZF recommended that I change the pressure regulators (Solenoids). Apparently the same solenoid handles 2nd and 6th gear. If the problem comes back, I will probably just replace the valve body with a rebuilt unit. You will tell a lot when you see the magnets inside the pan and the condition of the fluid. Post again when you know !
Steve