Fortunately mine were fine so that saved a few quid. Saw a post recently from a forum member saying that they're very hard to get refurbished as parts are not available. Maybe worth looking at secondhand units as new are crazy money. Charles Trent seem to have a few and list the vin of the donor vehicle, so you can check history on topix (when it's back up and running). L405 SV Autobiography LWB SDV8, finished in Aston Martin China Grey by ETO division.

That was handy for yourself then. I have been looking at secondhand ones but not sure. See i have been looking at the garrett cores and thinking weather to try changing the cores and give that ago. I don’t know if anyone has done that on here?
I might have to message Charles Trent

Maybe worth giving Turbo Technics in Northampton a call about cores, used them before a few times and was impressed with their setup, very helpful guys who have been around since turbos were invented! L405 SV Autobiography LWB SDV8, finished in Aston Martin China Grey by ETO division.

Turbo Technics refurbished both of my turbos. I was lucky that mine were still in a condition where they could be rebuilt. For the primary turbo, there aren’t many parts available, so in most cases you need a new unit; the secondary turbo, however, can be fully rebuilt. Cost £714

Just to add, Turbo Technics is an official Garrett turbo repair shop.

From invoice:

Job Card: xxxxx
Cause of failure: General wear and tear – previously reconditioned – bearings and seals to be replaced.
Ancillaries on arrival: Diverter valve & oil feed adapter

Job Card: xxxxx
Cause of failure: Fine particle damage to compressor wheel. Bearings are scored and worn. Signs of hot shutdowns to shaft. VNT nozzle is stiff/sticky in its operation.
Ancillaries on arrival: Oil feed adapter L405 4.4 Vogue
L538 2.2 Prestige
Pozdrawiam
Rafal