turbocharger

About six months ago my Evoque indicated a Transmission Fault Error on the dash, and at the same time the turbo charger started to sound like if the manifold had a leak. I had to go in for an emergency major surgery so the car became a secondary issue I couldn't care less. In the past six months...

My engine light came on and I had the code ran, it says turbocharger has gone bad. Has anyone experienced this? Cost to have it replaced? Possibility of DIY? I'm struggling a bit with the whole idea.