This is a very common problem mentioned on this forum and there have been various solutions and fixes proposed on here. You don`t say what the fault codes were and just deleting them is not a long term fix and more than likely to re appear. The garage must have had good reason to renew your turbo but if the light is on again then there must be fault codes to work on. It is no good guessing and telling you to renew this, that and the other as it could cost you a small fortune, personally I do not think it is a coincidence the light appeared just after you bought the motor and if I was you would want a full refund. If you do a lot of town driving/short journeys then think very carefully if that motor is fit for purpose and going from past experience stay away from any French motors, especially Renaults. I would type in your fault in the search box and see what solutions pop up or try google for a Peugeot owners forum,often very helpful people will try and sort your problem out. Good luck.
cdc, February 2015
