My van (1.6 2008 Peugeot Expert Diesel) lost power when driving last week, oil light came on (although full), slight rattle, and RAC diagnosed turbo. Took to a main dealer who also diagnosed turbo. Upon replacing the turbo they found a bolt was missing which they were concerned was in the engine and they would need two hours labour (£192!) to investigate. Owing to a miscommunication the investigation was not done, the turbo was fitted and I have been informed that the engine now needs replacing! There are metal shards in the sump apparently. I am doubtful that the turbo was the correct diagnosis initially but knowing extremely little about vans I would really appreciate your comments. Thank you.