Self Study Program 652 – Audi 4.0L V8 TDI engine of EA898 series

Self Study Program 652 – Audi 4.0L V8 TDI engine of EA898 series PDF free online

As a source of superior driving power in the premium segment, the V8 TDI engine offers high traction and ample power reserves in any driving situation. The new V8 TDI continues to follow this course. An electric powered compressor (EPC) contributes to good driveaway
performance.

The derivatives of the new engine generation will be available with the following features:

  • Power spread from 310 kW to 320 kW
  • Maximum torque of up to 900 Nm
  • Certification to EU6 (ZG) emission standard
  • Certification to EU5 and ULEV125 emission standards for export markets

In addition to the main development targets, a key aim was to create a standard engine for all markets. The different emission standards are differentiated by the vehicle exhaust system.

The state-of-the-art technologies described in this self study programme have been implemented with the following aims:

  • High engine power output and high torque for sporty positioning in an S model
  • Low fuel consumption for high efficiency in the high-performance segment
  • Low and sustainable emissions certified to EU6, EU5 and ULEV125 exhaust emission standards for world-wide use
  • Spontaneous power delivery and optimal drive-away performance as well as a high level of comfort

Learning objectives of this self study programme:

This self study programme describes the design and function of the 4.0l V8 TDI engine of the EA908 engine series. After you have completed this self study programme you will be
able to answer the following questions:

  • What is the structure of the components located in the inner V?
  • How is the coolant pump driven and how can it be switched off?
  • What is the voltage applied to the electric powered compressor (EPC)?
  • How does the charge pressure control system work?

CONTENTS

  • Introduction
    • Brief description and special features
    • Specifications
    • Engine concept with “inner hot side”
  • Engine mechanicals
    • Engine block
    • Timing gear
    • Cylinder head
    • Audi valvelift system (AVS)
    • Crankcase ventilation system
  • Oil supply
    • System overview
    • Oil circuit
    • Oil filter
    • Oil pump
    • Oil cooling
  • Exhaust gas recirculation
    • Overview
    • EGR cooler
  • Cooling system
    • System overview
    • Coolant module
  • Air supply and turbocharging
    • Combined design cover with integrated air filter
    • Intake system
    • Intake manifold header
    • Electric powered compressor (EPC)
    • 48-volt electrical subsystem
    • Charging group
    • Charge-air pressure control
  • Fuel system
    • System overview
    • High-pressure fuel system
    • SCR system
  • Exhaust system
    • Overview
    • Exhaust gas treatment module
    • Ammonia slip catalyst (version for NAR)
  • Engine management
    • System overview
  • Service
    • Special tools and workshop equipment
  • Appendix
    • Self study programmes

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: 48

Self Study Program 652 – Audi 4.0l V8 TDI engine of EA898 series PDF free online

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