Hello,
Eventually decided on an OM605 from a C250TD. The kit is gathered but have not been fitted due to other issues (tangled with a OM606 install in a W208 320 CLK Cabriolet........DONT DO IT!!!!). One of them is bound to go on the road soon, standby.

I am sorry, I cannot help you with the real world driving habits right now, due to the above. I am not the one fitting it...just the idiot with the stupid ideas!