This shop manual covers the proper disassembly, inspection, rework, assembly, and installation of the turbocharger (including the variable vane system) found on the AUDI A4 TDI - 115HP diesel cars. Written by an industry professional, this book contains full-color photos, diagrams, torque specs, and best practices. Repairing your vehicle's turbocharger is easy and cost effective-if you know how Covers Turbocharger Part Numbers 454231-0010, 454231-5010, 454231-9010, 454231-10, 038145702L