Bongo Fury

Hello again
About two months ago I was driving and out of nowhere the engine suddenly cut out and it turned out to be fuse 9 ( blue 15amp far left middle row on board ) had blown. Mechanic changed it over and everything has been fine since...until Friday when on the way to Latitude festival. Everything was fine..had driven over halfway ( mainly motorway for around 1 and a half hours) then stopped at services for a coffee. Got back on the A12 and after getting back up to 65mph the engine completely died on me
Luckily there was a grass verge and a massive pavement to crash land on.
I tried changing the fuse ( which had blown again ) but even though the van started again and seemed okay it cut out and blew fuse again after a minute or so,....this kept happening so I decided not to risk driving. Waited for the absolutely useless AA to recover me but gave up after 2 and a half hours and paid someone £260 to recover the van back home. While waiting the engine cooled down so I decided to try another fuse out of curiosity....van stayed running for a good 5 minutes or so but I turned it off and thought I'd either fix it when home or sell her
Would anyone have any ideas as to where I could start to find the problem?
Thank you so much in advance and apologies for the long post
Hello again
About two months ago I was driving and out of nowhere the engine suddenly cut out and it turned out to be fuse 9 ( blue 15amp far left middle row on board ) had blown. Mechanic changed it over and everything has been fine since...until Friday when on the way to Latitude festival. Everything was fine..had driven over halfway ( mainly motorway for around 1 and a half hours) then stopped at services for a coffee. Got back on the A12 and after getting back up to 65mph the engine completely died on me
Luckily there was a grass verge and a massive pavement to crash land on.
I tried changing the fuse ( which had blown again ) but even though the van started again and seemed okay it cut out and blew fuse again after a minute or so,....this kept happening so I decided not to risk driving. Waited for the absolutely useless AA to recover me but gave up after 2 and a half hours and paid someone £260 to recover the van back home. While waiting the engine cooled down so I decided to try another fuse out of curiosity....van stayed running for a good 5 minutes or so but I turned it off and thought I'd either fix it when home or sell her
Would anyone have any ideas as to where I could start to find the problem?
It's a 2.5TD P registration
Thank you so much in advance and apologies for the long post

The fuses and the names of the circuits are shown on my web pages http://www.g8dhe.net/bwm probably worth book marking!
I've highlighted those using the diesel engine WL-T;
That fuse covers;
15 Amp Mini fuse
Engine - Control System - WL-T
Engine - Control System Ignition - FE-E,J5-DE
Engine - Fuel Control System - FE-E, J5-DE
Engine - Cooling System - WL-T,FE-E, J5-DE
Exterior lighting - Reversing Light - WL-T, FE-E, J5-DE
Chassis related - EC-AT Control System - FE-E, J5-DE
Chassis related - 4 Wheel Anti Lock Brake System (4Wabs) - WL-T, FE-E, J5-DE
Body - SRS Air Bag System - WL-T, FE-E, J5-DE
Others - Diagnosis Connector - WL-T,FE-E,J5-DE

It covers a host of things so quite difficult to suggest what the specific problem is. However the rear light houses and the reversing light can be a common problem.

Hi mate
Thank you so much for your reply. It was the kind of response that I expected ( and most dreaded )
I was hoping by chance it was going to only control one circuit or be something obvious...but by the looks of things it's going to be very hard to trace. I spoke with my mechanic but he said it's going to be hard to fix it when it's not going wrong. Seeing that it is now running ( although I won't risk driving it ) without blowing the fuse again I don't know how to find the problem. Looks like that day has finally arrived when I need to buy a boring newer van as I was using my Bongo for work as well as pleasure so can't take the time to find the problem
I tried to look at the wiring diagrams but I couldn't find them for whatever reason. Honestly though thank you for your help...I'll be gutted to leave the Bongo community