SSP 920163 - Audi Third Generation 2.0l Engines.pdf

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eSelf Study Program 920163

Audi Third Generation 2.0l Engines

Audi

Academy

Audi of America, LLC

Service Training

Created in the U.S.A.

Created 5/2016

Course Number 920163

the latest information available at the time of printing and is subject to

the copyright and other intellectual property rights of Audi of America,

LLC., its affiliated companies and its licensors. All rights are reserved to

make changes at any time without notice. No part of this document

may be reproduced, stored in a retrieval system, or transmitted in any

form or by any means, electronic, mechanical, photocopying, recording

or otherwise, nor may these materials be modified or reposted to other

sites without the prior expressed written permission of the publisher.

All requests for permission to copy and redistribute information should

be referred to Audi of America, LLC.

Always check Technical Bulletins and the latest electronic service repair

literature for information that may supersede any information included

in this booklet.

This eSSP contains video Links which you

can use to access interactive media.

Revision: 1 (5/2016)

Introduction

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Development of the engine series ........................................................................................................................... 2

Design objectives for the new engines ................................................................................................................... 3

Features/ specifications ..................................................................... 4

Performance class 1 engine .................................................................................................................................... 6

Performance class 2 engine .................................................................................................................................... 8

Engine mechanicals ......................................................................... 10

Crankshaft ............................................................................................................................................................... 10

Engine block ............................................................................................................................................................ 12

Engine oil 0W-20 ..........

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Cylinder head .......................................................................................................................................................... 14

Chain drive .....................

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Engine management ....................................................................... 18

Mass airflow sensor ................................................................................................................................................ 18

Combustion process .....

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Miller cycle ............................................................................................................................................................... 19

The new Audi B cycle combustion process ..........

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Service

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Three-piece oil control rings .................................................................................................................................. 25

Maintenance ......................................

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Appendix

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Glossary ...................................................................................................................................................................26

Self-Study Programs ........................................................................ 2 7

Knowledge assessment ................................................................... 28

This eSelf Study Program teaches a basic knowledge of the design and functions of new models,

new automotive components or technologies.

is not a Repair Manual! All values given are intended as a guideline only.

For maintenance and repair work, always refer to the current technical literature.

Note

Reference

iii

Introduction

Two new 2.0l engines - representing the next evolutionary

step forward - are being introduced by Audi. They derive

from the third generation EA888 engine family and are

categorized as Generation 3 MLBevo engines.

The 2.0l engines are members of separate performance

classes (a European rating system). The main difference

between the two engines is in the charge cycle and combus-

tion process.

The Performance class 1 engine is capable of operating on

the Miller cycle. The Miller cycle was first patented in 1947.

Audi premiered an engine based on the Miller cycle operat-

ing principles at the Vienna Motor Symposium in May of

2015.

was hailed as the most fuel efficient gasoline

engine in its class.

You may also hear the performance class 1 2.0l engine

referred to as the 2.0l Generation 3 BC engine. BC stands

for B cycle. B cycle is the Audi term for its technological

refinement to the Miller combustion cycle principles. The

marketing term for this engine is the 2.0 T ultra engine.

The Performance class 2 is similar in operating principle to

the current 2.0l TFSI engine used in the North American

market on the 2016 Audi A4. This engine is not a B cycle

engine.

Learning objectives of this eSelf-Study Program:

After completion, you will be able to answer the following

questions:

What are the differences in terms of the engine

mechanicals compared with the third-generation

engines?

What are the new features of the lubrication,

charging, fuel and injection systems?

How does the Performance class 1 engine differ from

the Performance class 2 engine?

How does the Miller cycle work?

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