Hi, I had similar problems: The first was an oil seal on the turbo leaking when under pressure ( This gave off a james bond like smoke screen when in boost for a long time ) the seal cost about 50 pence but the labour was an hours worth. The second was the rear crank seal which was leaking onto the fly wheel and spaying the oil all over the back of the engine, expensive job - gearbox off, new clutch recommended all for another seal. :( Haydn