i've been offered a 06 peugeot 206 van , it has a 1.4hdi engine , blows a lot of smoke when it passes 2000rev's , took it to 2 garages , one said it's injector one that engine is gone , car starts fine at cold/hot , oil seems to go missing if gets driven , could it be the turbo ? took the inlet pipe out and seems to be dry , but the turbo has a bit of oil dripping from the exhaust side ???

what do you's think??? it's cheap enough but not too keen to buy it if it needs a new engine