Busy day today... put the starter motor back after the correct contacts arrived for the solenoid - works well now. Removed the EGR and replaced with a cheapy blanking job from e-bay. Cheap and roughly made but does the job. Replaced the VCU with a recon job from Bell, took ages to separate the front driveshaft from the old one as it was stuck on but got there in the end - otherwise was straight forward. AND - replaced the thermostat using the method on the forum without removing any belts or the pump! Horrible job, but now surprising how quickly the TD4 engine warms up - much quicker than my 300 Tdi disco!