What kind of turbo on my?

I have a 2009 Octavia BKD 2.0TDI PD 140BHP. I was curious about what turbo it has on it. Garrett GT1749V? Well my turbo has failed two days ago, white smoke out of the exhaust, the engine it was running on it self with key out, I have to put in 5th gear to stall the engine, it was towed to my home, the mechical said he is well know of VAG cars, the Octavia have weaken turbo. He said it's better to upgrade the turbo rather than buy the same turbo in the next 60,000 miles, as it will happen again.

The turbo had massive oil leaking in the turbine. My mechanic is waiting for my decision on whether to put a reconditioned or an upgraded turbo.

Strangely, I had many VAG engine 1.9 PD and some had remapped, never had turbo issue. The Octaiva is standard, no tuning, but it had a turbo failure.