This comprehensive 48-page PDF file contains the official VAG Self-Study Program 429 (SSP 429), focused entirely on the new engine architectures and power transmission systems introduced with the first-generation Audi Q5. While it provides a thorough overview of the Q5’s initial engine lineup, the centerpiece of this manual is the introduction of the highly advanced 7-speed dual-clutch gearbox, the 0B5 (also known as the S tronic). Designed specifically for longitudinally mounted engines and the Quattro all-wheel-drive system, the 0B5 represents a major milestone in Audi’s transmission engineering. This technical training manual is an indispensable resource for VAG technicians, diagnostic specialists, and Audi enthusiasts.
Please note: As a Self-Study Program, this document focuses on engineering design, structural layouts, and operational theory. It is not a step-by-step rebuild or workshop manual. Additionally, while this manual introduces the 0B5 gearbox, a highly detailed breakdown of the 0B5’s internal Mechatronics and electrohydraulics is covered in a subsequent, dedicated SSP.
This detailed technical training manual covers the following key engineering topics:
- The Petrol Engine Lineup: A technical overview of the initial gasoline engines offered in the Q5. It covers the specifications, valvetrain design, and fuel management of the 2.0L turbo FSI (EA888 generation) and the 3.2L V6 FSI (which features the Audi Valvelift System).
- The Diesel Engine Lineup: A detailed look at the TDI offerings. It explains the transition to Common Rail injection for the 2.0L TDI and covers the specific modifications made to the 3.0L V6 TDI, including its new volume-flow controlled oil pump.
- The 0B2 Manual Gearbox: A brief overview of the 6-speed manual transmission available in certain markets, highlighting its integration with the Quattro system.
- The 7-Speed Dual-Clutch Gearbox (0B5 / S tronic): The core of the transmission section. It provides a comprehensive introduction to this new longitudinal gearbox, featuring detailed sectional views to identify internal components. It explains the mechanics of the dual-clutch assembly, the layout of the dual input shafts, and the specific advantages of its 7 gear ratios (which balance rapid acceleration with a highly efficient top-gear overdrive).
Whether you are comparing the mechanical layouts of the 2.0L TFSI and 3.2L FSI, needing a primer on the 3.0L TDI’s variable oil pump, or studying the fundamental architecture of the 0B5 S tronic transmission, SSP 429 is the definitive technical resource.
CONTENTS
- Engine
- 2.0l turbo FSI
- 3.2l V6 FSI
- 2.0l TDI with common rail injection
- 3.0l V6 TDI with common rail injection
- The volume-flow controlled oil pump of the 3.0l V6 TDI engine
- Exhaust gas recirculation in the 3.0l V6 TDI engine
- Fuel tank and feed
- Exhaust system
- Power transmission
- Drive concept – powertrain – power transmission
- 0B2 gearbox
- Six-speed manual gearbox 0B2
- Self-locking centre differential with asymmetric torque split
- 0B5 gearbox/S tronic
- Seven-speed dual-clutch gearbox 0B5/S tronic
- Sectional view of gearbox – overview of the component parts
- Advantages of the 7 gear ratios
- Design and function of the gearbox mechanism
- Design features of the dual clutch
- Gearshift sequence
- Synchronisation
- Gearbox oil system
- ATF supply – lubrication
- ATF cooling
- Lubrication of the manual gearbox
- Parking lock
- Gearbox control
- Mechatronics J743
- Hydraulics/overview
- Electronics
- Gearbox protection functions
- Control unit temperature monitoring
- Clutch protection
- All you need to know
- Gearshift mechanism – ignition key withdrawal lock – Audi drive select
- Limp-home programs
- Displays/warnings
Language: English
Format: PDF
Pages: 48
