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Audi A6 242 User Manual

Audi A6 242
64 pages
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Service.
For internal use only
All rights reserved, including
the right to make technical
changes.
AUDI AG
Dept. I/VK-5
D-85045 Ingolstadt
Fax 0841/89-36367
940.2810.47.20
Technical status 11/00
Printed in Germany
Pneumatic suspension system
Part 1
Selflevelling suspension
in the Audi A6
Design and Function
Self-study programme 242
242
242
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Audi A6 242 Specifications

General IconGeneral
BrandAudi
ModelA6 242
CategoryAutomobile
LanguageEnglish

Summary

Principles of Vehicle Suspension

Vehicle Suspension Functions

Explains suspension purpose: driving safety, comfort, and component protection.

Suspension System Types

Discusses steel springs, air suspension, and the role of sprung/unsprung masses.

Vibration and Natural Frequency

Details vibration phenomena, bodywork natural frequency, and its influencing factors.

Spring Characteristics and Matching

Covers spring rates, characteristic curves, and matching natural frequencies to axle loads.

Conventional Steel Spring Systems

Describes conventional running gear without self-levelling and its spring travel limits.

Principles of Air Suspension

Self-Levelling Air Suspension

Introduces air suspension as a controllable system with self-levelling advantages.

Air Spring Design and Parameters

Explains air spring parameters, characteristic curves, and their influence on vehicle dynamics.

Vibration Damping Systems

Details the function of vibration dampers (shock absorbers) and their types.

Damping Force and Control

Discusses damping force, matching, degree of damping, and characteristic curves.

PDC Pneumatic Damping Control

Explains the PDC damper's role in maintaining constant damping characteristics.

Audi A6 Self-Levelling Air Suspension System

System Overview and Components

Provides an overview of the A6 self-levelling system and its main components.

Air Springs and Struts

Covers air spring installation, design, and strut construction for different drive types.

Air Supply Unit and Pneumatics

Details the air supply unit, compressor, dryer, and pneumatic system diagram.

Pneumatic System Operation

Explains compressor operation, air drying, and pneumatic system discharge.

Air Spring Valves and Level Sensing

Describes valves for air springs and the vehicle level sensor.

Control Unit and System Management

Details control unit, self-diagnosis, interfaces, and control concept.

System Protection and Safety Features

Covers warning lamp, overheating protection, battery protection, and system modes.

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