Would using extensions and u-joints help?

thanks for your reply, i have done all of this but can not get a "spanner" on the torqu bolt above the starter solenoid have now dropped exhaust which gives more access but struggle to get a couple of turs on it  rain has stopped play will continue tomorrow

We don't have experience with the diesel here in the US, but here is what I found:

disconnect battery
remove intake filter
remove intake duct
remove underbody protection (if necessary)
remove right wheel

unclip fuel filter
release starter screw on transmission side
release terminal 30 on starter (alternator & battery)
release terminal 50 on starter

remove vacuum reservoir
remove pressure transducer and wiring harness fastener
release upper starter fastener and hose holder
release lower starter fastener

remove starter to right above pitman arm

torque starter fastener to engine: 20 Nm
torque starter fastener to transmission:  20 Nm

Ken, from Mini Mania, will reply Monday.

r56 2007 diesel all most there but can not see how to remove the starter motor bolts to drop transmition, has anyone done this or have any tips?