This comprehensive 64-page PDF file contains the official VAG Self-Study Program 359 (SSP 359), focused entirely on the design and function of the world’s first direct-injected, dual-charged petrol engine: the Volkswagen 1.4L TSI. To achieve the goal of “downsizing” (getting large-displacement power from a small, fuel-efficient block), VW engineers utilized both a belt-driven mechanical supercharger for instant low-end torque and an exhaust-driven turbocharger for high-end power. This technical training manual is an absolute must-have for mechanics, tuners, and VAG enthusiasts who need to understand the incredibly complex interactions between the forced induction systems and engine management.
Please note: As a Self-Study Program, this document focuses on engineering design, mechanical layouts, and operational theory. It is not a step-by-step repair or workshop manual, though the theoretical knowledge it provides is invaluable for complex diagnostics on these intricate engines.
The manual covers the following key engineering topics in detail:
- Engine Mechanics and Architecture: A detailed overview of the robust internal components required to handle dual forced induction. It details the specific design of the cylinder block, the timing chain layout, the cylinder head, and the specialized oil and crankcase ventilation systems.
- The Dual-Charging System (Twin-Charging): The core of the engine’s unique performance. It provides a complete, step-by-step breakdown of how the mechanical supercharger and the turbocharger work together. Crucially, it explains the complex regulating flap that dictates when the supercharger is engaged (via a magnetic clutch) and when the turbocharger takes over completely.
- Cooling and Fuel Delivery: Essential details on managing the heat and fueling needs of a twin-charged engine. It meticulously explains the dual-circuit cooling system (which includes a separate low-temperature circuit for the charge air intercooler) and the demand-regulated, high-pressure direct fuel injection system.
- Engine Management (Motronic MED 9.5.1): A comprehensive overview of the electronic “brain” required to coordinate the supercharger clutch, the regulating flap, and the turbo wastegate. It details the CAN networking, the specific functions of the various sensors (like the crucial intake manifold pressure sensors), and all system actuators.
- System Diagnostics: The manual includes a full electronic functional diagram mapping out the entire engine management system, making it easier to trace faults.
Whether you are trying to diagnose a magnetic supercharger clutch failure, map out the complex vacuum and boost piping, or simply want to understand the theory behind seamless twin-charging, SSP 359 is a vital technical resource.
CONTENTS
- Introduction
- Engine mechanics
- Poly-V-belt drive
- Timing chain
- Cylinder block
- Cylinder head and valve train
- Dual-charging with supercharger and turbocharger
- Crankcase breather and ventilation
- Oil system
- Dual-circuit cooling system
- Demand-regulated fuel system
- Exhaust system
- Engine Management
- System Overview
- CAN networking
- Engine Control Unit
- Sensors
- Actuators
- Functional Diagram
- Service
- Test Yourself
Language: English
Format: PDF
Pages: 64
Self Study Program 359 – 1.4l TSI Engine with Dual-charging Design and Function PDF free online
