Thanks all for the replies. Tested the solenoids and looks like it's definitely the 2/4 duty solenoid.
Going to order the new solenoid from DMGRS. Can anyone advise if this is the correct gasket for the gearbox?
https://www.ebay.co.uk/itm/VW-Jaguar...tdvAENoZJWXIJM
And also is this the correct oil?
https://www.ebay.co.uk/itm/234077651...Owq3bw9Otll1EY
And how much oil is needed? ? I'm seeing conflicting info on threads and posts, some say around 4l others say 7l?
Thanks