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Audi 4.2-liter V8 FSI User Manual

Audi 4.2-liter V8 FSI
48 pages
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Self-Study Program 921603
All rights reserved.
Technical specifications
subject to change without
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Audi of America, Inc.
3800 Hamlin Road
Auburn Hills, Michigan 48326
Audi 4.2-liter V8 FSI Engine
Service Training
Leading through Technology www.audiusa.com
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Audi 4.2-liter V8 FSI Specifications

General IconGeneral
BrandAudi
Model4.2-liter V8 FSI
CategoryEngine
LanguageEnglish

Summary

Introduction to the Audi V8 FSI Engine

RS4 High-revving Engine Features

Highlights the high-revving version of the 4.2L V8 FSI engine for the RS4.

Audi Q7 Engine Objectives

Covers the 4.2L V8 FSI engine used in the Audi Q7 and its development objectives.

Technical Specifications and Curves

Details technical features, differences, and performance specifications.

Engine Mechanical Components

Cylinder Block Design

Details the closed-deck design, materials, and machining of the cylinder block.

Crankshaft, Connecting Rods, and Pistons

Explains the construction and modifications of the crankshaft, connecting rods, and pistons.

Crankcase Ventilation System

Describes the blow-by gas management and oil separation process.

Chain Drives and Accessory Drive

Covers the timing chain concept, drives, and accessory drive module.

Cylinder Head Features

Details specifications and differences in cylinder head design.

Oil Circulation System

Oil Circulation System Design

Explains the wet sump concept, oil flow rate, and heat exchangers.

Oil Pump and Filter Module

Details the oil pump location and the full-flow oil filter module.

Audi RS4 Sump System

Covers the specialized flap system in the RS4 sump for oil supply.

Cooling System

Audi Q7 Cooling System Overview

Details the longitudinal-flow cooling system for the Audi Q7.

Audi RS4 Cooling System and Components

Covers the RS4 cooling system, including additional coolers, pump, and thermostat.

Radiator Fan Control

Explains how the Engine Control Module manages radiator fan operation.

Air Circulation System

Audi Q7 Air Intake System

Details the Q7's double-chamber intake, variable manifold, and flaps.

Audi RS4 Air Intake and Vacuum System

Covers the RS4's intake design, power flap, and vacuum hose routing.

Vacuum System Operation

Explains vacuum generation via suction jet and electrical pumps for brake assist.

Fuel System

Fuel System Overview and Low-Pressure Systems

Details the Q7/RS4 fuel system, including low-pressure components and differences.

High-Pressure Fuel Delivery

Explains the fuel rails, injectors, pressure limiting valve, and sensors.

Exhaust System

Exhaust System Design and Flow Optimization

Discusses exhaust system layout, catalytic converters, and silencers for flow resistance.

Audi RS4 Exhaust Flap Control

Explains the function of exhaust flaps for sporty sound and noise limits.

Secondary Air System Function

Explains the secondary air system's role in catalytic converter warm-up.

Engine Management

Audi Q7 Engine Management Components

Details the Q7's single ECM, sensors, actuators, and system overview.

Audi RS4 Engine Management Components

Covers the RS4's dual ECM, sensors, actuators, and system overview.

System Differences, Communication, and Operation

Highlights differences, control modules, CAN bus, diagrams, and Sport mode.

Knowledge Assessment

Online Knowledge Assessment Information

Provides details on accessing and completing the online knowledge assessment.

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