Hi there just joined forum just don't where to turn with this car . I bought this car other week a4 2.5 tdi auto Quattro 95000 miles full Audi sh when idleing smokes like a chimney also limp mode . Been in garage for a week now changed airflow mass meter blanked egr valve changed turbo still the same cant be certain turbo is good what I changed oil leaking from manifold side of turbo . Anybody can help I would be more than grateful . On the verge of buying recon turbo ????