Sorry for not thanking everyone for their input back in the day, that was very wrong of me as I was very grateful for the input.
Yes the issue was solved, took it to a local garage who said it could be a break in circuit in the fuse board. At the time a replacement fuse board was a cheaper option if it worked, than a CPU and at the end of the day if it didn't work I would have a new fuse board at least..
To my relief the new fuse board fixed all the problems.
Still have the TD4 but are suffering more issues with individual door buttons not working, and key fob and window winders........... She is now 22 years old but only has 140k on the clock so only just run in
but it may be time to move it on?
Nobody seems to want to give me a price to repair all the issues?
I would like to keep it if the cost was reasonable and cheaper than a new car.