Self Study Program 626 – Audi Basics of Engine Technology

VAG SSP 626. In this self-study programme, you will learn the fundamental basics of Audi engine technology. It forms the basis for Training Module ATA 201 P.2. This self-study programme follows an approach that supplements the previous objectives. On the pages of this self-study programme you will find information on the fundamental design and function of Audi engines and associated technologies. Numerous engine subsystems are also presented and explained.

Audi engine technology is distinguished by continual advancement and development with the aim of improving efficiency. That is part and parcel of the customer’s continuing and growing enthusiasm for the vehicle. That alone produces a broad range of engines for a wide diversity of demands and vehicle types. Added to that there are market-specific variations.

New engine technologies have been presented in the Audi selfstudy programmes for many years. The chief objective of doing so is to equip service organisation staff with an understanding of the numerous innovations and processes to a level beyond the information given in the worksop manual repair instructions.

Learning objectives of this self-study programme

When you have worked through this Self Study Programme, you will be able to answer the following questions:

  • What types of engine are used at Audi?
  • How are the components of the engine’s mechanical and control systems constructed?
  • How do the components of the engine’s mechanical and control systems operate?
  • What engine subsystems are there and how do they work?


  • Introduction
    • Principle of operation of a four-stroke petrol engine
    • Engine technology at Audi
  • Engine code
    • Introduction
    • Engine code on the vehicle
  • Engine types
    • The in-line and the V engine
    • The VR and the W engine
  • Engine components
    • Cylinder block
    • Crankshaft
    • Piston
    • Piston rings
    • Gudgeon pin
    • Connecting rod
    • Timing belt drive system
    • Chain drive system
    • Balancer shafts
    • Cylinder head
    • Gaskets and seals on the engine
    • Camshafts
  • Engine timing
    • Valve gear
    • Camshaft timing adjuster
    • Engine lubrication
  • Subsystems
    • Crankcase breather
    • Engine cooling system
    • Coolant thermostat as 3/2-way valve
    • Air supply system
    • Intake manifold
    • 3-stage variable intake manifold
    • Forced induction systems
    • Intercooler
    • Exhaust gas recirculation
    • Exhaust system
    • Ignition system
    • Glow plug system
    • Fuel system
  • Annex
    • Information on QR codes

The Self Study Programme teaches a basic knowledge of the design and mode of operation of new models, new automotive components or new technologies.
It is not a Repair Manual! Figures are given for explanatory purposes only and refer to the data valid at the time of preparation of the SSP. This content is not updated.
For further information on maintenance and repair work, always refer to the current technical literature.

Language: English
Format: PDF
Pages: 124

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