Engine service now message comes on now and again, taken to garage they said new turbocharger, dealership fitted new turbocharger. Problem was fixed but now the message has returned. Car goes into limp mode,

Take it back to the garage to be fault scanned again.

Nothing else come up on the scanner it was only turbo

1 hour ago, Hazza381 said:

Nothing else come up on the scanner it was only turbo

There are several fault codes relating to the turbo.  Do you know exactly what it was?

If there are no codes showing on a generic OBD scanner now then you will need Ford specific diags on it to see the hidden codes.

Without a fault code we'll just be guessing and you may end up wasting a lot of money on parts it didn't need.

 

2 hours ago, Hazza381 said:

Problem was fixed but now the message has returned. Car goes into limp mode,

Did the garage offer a warranty on their work? If so it should be their responsibility to fix it again.

27 minutes ago, mjt said:

Did the garage offer a warranty on their work?...

Irrespective of a 'warranty', the work should be covered under the,  "Supply of Goods and Services Act 1982 or the Consumer Rights Act (CRA) 2015" However, that should be a last resort, I'm sure some polite negotiation should instigate a further diagnosis of the continuing fault...