Problems when opening or closing the convertible top may be fixed by flushing the hydraulic fluid and replacing it with an improved Jaguar fluid.Google+
Car Problem Reports
Jaguar XK8 Flush Hydraulic Fluid to Fix Problems Opening/Closing Convertible Top
Jaguar XK8 Problem
Average Mileage: 74,456 mi (41,700 mi - 148,000 mi)
Visitor, 2000 Jaguar XK8, 91,000 mi
Convertible top and rear windows will not close
Visitor, 2000 Jaguar XK8
where do you add the HYD fluid
Visitor, 2000 Jaguar XK8, 67,000 mi
The top is really slow, and the back 2 windows remain down
Visitor, 1999 Jaguar XK8, 56,500 mi
the convertible top will not go down when switch is pressed. Fluids were changed in May. You can hear it click when the button is pressed to go up, but when pressed, the rear windows do not go down and nothing happens.
Visitor, 1999 Jaguar XK8, 60,000 mi
top stop working
Convertible top is not insink with lach. Top opens and close and lach is still closed or opens too slow to lock down top..
Visitor, 1997 Jaguar XK8, 97,000 mi
slow ope & clsoe
Noise when opening the top
Visitor, 2002 Jaguar XK8, 65,000 mi
top won't go up
Visitor, 2000 Jaguar XK8, 62,000 mi
Top is real slow, and rear windows won't close!