This document provides instructions for overhauling a Garrett VNT/GT15-25 turbocharger. It describes cleaning and replacing parts like the compressor wheel, turbine wheel, heat shield, seals, bearings, flingers, piston rings, and shaft. It emphasizes the importance of carefully removing and reinstalling parts to avoid damage. A complete rebuild kit is shown containing all necessary replacement parts. Detailed steps and photos show how to clean, install new parts, and reassemble the turbocharger.