HI,
Sorry for taking so long to reply but I had an accident....
I have managed to repair the doors and this leads me to conclude the most effective method.
1. Save up and send to you local B&o agent
2. Live with the problem if possible (only use in the dark!)
3. Read all information and remember that the excellent updated service manuals are viewed 'front-on'
From this experience I realised that, 'what looks complex is often just a clever solution!'
I will now use this as my quote!
Thanks again for your help.
Phil