URGENT HELP

I have a S40, the other day it came up with engine system needs servicing. I took the car to the garage and it had a diagnostic check and it said Turbo losing pressure. I am trying to save money so does anyone know what I can try.

I think it was Turbo losing pressure

 

Check the crankcase breather system. with engine running pull dipstick, if smoke comes out, issue found.