hi i have one of above it will not start up very well when cold and it is a worse when it is hot some times it will not start at all.advice if you can thank you
The most likely cause is the electronic ignition module. Try to get one from a scrap yard and substitute it. If it works - buy it. If not well you'll have to get it to a garage.
look for an independant bosch diesel pump repairer. The dealer is selling you a new pump, but yours can probably be repaired for much less. http://www.kellysearch.co.uk/gb-company-82183472.html
these guys saved me hundreds a couple of years ago.