Home >> Audi >> 2017 >> TT Quattro Base, 2D Convertible >> Repair and Diagnosis (Single Page) >> Accessories & Equipment >> Drivers Assistance Systems - ADAS >> Communication (1 Of 2) [Roadster] >> 91 Communication >> MULTIFUNCTION Steering Wheel >> Tiptronic Downshift Button On Steering Wheel -E439- /Tiptronic Upshift Button On Steering Wheel -E438-, REMOVING AND INSTALLING >> Tightening Specifications