Hi Mad geordie. :welcome2:
Your thread seems to have attracted the TRATTER boys :hijacked:
There are several knowlegable people on this forum and some others who just take the ****.
:focus:
Have a google for "Green Oval" and download the cd's for the freelander - includes all manuals and repair and maintenance info your likely to want.
You will then be able to identify your exhaust system components and find out about the VCU and transmission system.
There have been threads on here (many) about the hill descent switch problems and VCU - use the :search: then ask again.