The Audi 0B5 (DL501) 7-speed DSG transmission is a longitudinal dual-clutch transmission that first produced for Audi vehicles in 2008. The 0B5 transmission design uses 7 gear ratios with a wide spread to achieve a better fuel efficiency than the previous 6-speed DSG design. See the full Raybestos Powertrain 0B5 transmission parts listing and tech tip video below.