My 600 diesel was fine this morning but after 40 miles on the A1(M) it lost power and is now pretty hopeless around town. It doesn't want to rev or accelerate and minor inclines need gear changes. The engine sounds fine at tickover and there is no whining from the turbo (as far as I can tell).
Does anyone have any ideas? Grateful for any help.
Does anyone have any ideas? Grateful for any help.