jaguar xk 8 2004

[allan russell]

I had slip in the automatic gearbox, especially under load. I had the oil (supplied by jaguar) and the sump/filter replaced by my local garage. The problem has not gone away. The old oil was black and smelled burnt.
Am I looking at a new gearbox, a rebuild or what?
Any idea how much any of these options might cost?
Thanks in hope

[allan russell]

Thanks to anyone who replied
Backed up what I thought
Regards