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General| Brand | Audi |
|---|---|
| Model | 243 |
| Category | Automobile |
| Language | English |
Introduces the self-study program for the Audi allroad quattro 4-level air suspension system.
Explains the system as a development of the Audi A6 self-levelling system.
Details the main components of the 4-level air suspension system and their arrangement.
Explains how to operate the self-levelling control unit E281 using raise/lower buttons.
Describes the LEDs on the operating unit and their meaning for system status.
Covers automatic switching, manual mode, and switching off the control system.
Details automatic lowering and raising based on speed for control unit 4Z7 907 553A.
Explains automatic lowering in motorway mode, parking level, and manual mode functions.
Outlines variations in control strategies for control unit 4Z7 907 553B.
Explains ESP influence deactivation at higher speeds and levels for safety.
Describes the design and installation of front and rear air springs.
Details the compressor, air dryer, and pressure accumulator for air supply.
Covers solenoid valves, sensors, and the operating unit E281.
Explains data exchange between control units via the CAN bus.
Covers door contact, terminal 50, vehicle locking, and speed signals.
Details trailer operation signal and headlamp range control signal interaction.
Provides a wiring diagram illustrating system connections.
Explains the meaning of symbols, signals, and auxiliary signals used in the diagram.
Explains the function and importance of the central control unit J197.
Details height/driving modes, run-on/run-up, sleep, lifting platform, and trailer operation.
Lists necessary tools like adapter cables and test boxes for fault finding.
Describes the process of setting the reference level for the air suspension system.
Outlines how to use diagnostic testers for system checks and fault identification.
A graphical summary of control strategies based on vehicle speed and operational modes.
