51 plate Alhambra 1.9tdi 115, Loss of power, lot of blue/grey smoke (especially under load or revving), and slight noise under the bonnet. Had the RAC out to tow the car home, roadside diagnosis being turbo f*cked, how is best to confirm this? Just before pulling over, the car struggled to pull over 40 in 3rd, smoke when revved stinks of oil.