This comprehensive 176-page PDF file contains the official VAG Self-Study Program 675 (SSP 675), focused entirely on the development, structural design, and mechanical function of the Audi e-tron (Type GE). As Audi’s first fully electric SUV, the e-tron introduces a host of new technologies and materials to the VAG lineup. This technical training manual is an invaluable resource for EV technicians, body shop specialists, and diagnostic mechanics looking to understand the advanced engineering behind the vehicle’s composite construction and high-voltage systems.
Please note: As a Self-Study Program, this document focuses heavily on structural design, material usage, and the basic knowledge of new vehicle components. It is not a step-by-step physical repair or Workshop Manual, though the theoretical knowledge it provides is foundational for any significant repair work or technical diagnosis.
This detailed technical training manual covers the following key automotive engineering topics:
- Body Construction and Materials: A primary focus of the manual. It meticulously details the e-tron’s modern composite body structure, mapping out where different materials are used to maximize strength while minimizing weight. This includes the use of sheet aluminum in the rear underbody, die-cast aluminum for the front suspension turrets, and extruded aluminum profiles for critical structural components like bumper carriers, crash boxes, and suspension strut cross members.
- High-Voltage and Electrical Systems: An introduction to the mechanics and electronics that power the e-tron. It outlines the layout of the high-voltage battery system, the vehicle’s electrical network, and how the power is distributed to the electric motors.
- Drivetrain and Electric All-Wheel Drive: Exploring Audi’s new generation of electric “quattro”. The guide covers the design and operation of the front and rear electric motors, explaining how they provide superlative traction and handling across various terrains.
- Thermal Management System: Essential reading for understanding EV efficiency. The manual explains the cooling and heating circuits designed to maintain the optimal operating temperature for the high-voltage battery, power electronics, and the cabin interior, ensuring consistent performance and range.
Whether you need to study the specific locations of the extruded aluminum reinforcement struts, map the vehicle’s high-voltage electrical network, or understand the thermal management principles of Audi’s electric SUV, SSP 675 provides the definitive technical overview.
CONTENTS
- Introduction
- Distinguishing features of the vehicle
- Dimensions
- Body
- Overview
- Underbody structure
- Body assembly
- Audi e-tron driving strategy
- Drive
- quattro with e-tron technology
- Recuperation (energy recovery)
- Power units
- Electric drive motor for front axle
- Electric drive motor for rear axle
- Electric drive motor
- Torque/speed generation
- Drive dynamics
- Electric drive cooling system
- Electric drive control unit
- Power transmission
- Overview
- Selector mechanism
- Park-by-wire parking lock
- Parking lock mechanism
- Single-speed transmission – 0MA
- Lightweight planetary gear differential
- Single-speed transmission – 0MB
- Service information
- Running gear
- Overview
- Axles
- Adaptive air suspension
- Steering system
- Brake system
- Brake regulation system MK C1
- Wheels, tyres and tyre pressure monitoring
- Electrics and electronics
- Power supply
- Networking
- FlexRay
- Terminal management
- Data bus diagnostic interface J533
- Onboard supply control unit J519 (BCM1)
- Convenience electronics
- Convenience system central control unit J393
- Virtual exterior mirrors
- Control unit in dash panel insert J285
- Motor control unit J623
- Exterior lighting
- High-voltage system
- Overview of the high-voltage components
- Safety regulations
- Warning labels
- High-voltage battery 1 AX2
- Charging sockets on the vehicle
- Vehicle communication with the power source
- External sound
- Audi e-tron charging system (compact)
- Air conditioning and thermal management
- Thermal management
- Refrigerant circuit
- Refrigerant circuit and heating circuit
- Refrigerant circuit, heating circuit and coolant circuit for high-voltage battery
- Refrigerant circuit, heating circuit, coolant circuit for high-voltage battery and coolant circuit for electric powertrain
- Thermal management system scenarios
- Thermal management control unit J1024
- Assembly group – heat exchanger for heat pump operation and for high-voltage battery, refrigerant circuit valves
- Coolant expansion tank
- Overview and position of refrigerant circuit, heating circuit and coolant circuits
- Fitting locations of coolant changeover valves and coolant pumps
- Safety and driver assist systems
- Driver assist systems
- Passive safety
- Airbag control unit J234
- Sensors
- Active safety
- Infotainment and Audi connect
- Introduction and overview of versions
- Sound
- Aerials
- Servicing, inspection & roadside/breakdown assistance
- Service interval display
- Roadside/breakdown assistance
- Self-study programmes
This self-study programme teaches a basic knowledge of the design and functions of new models, new vehicle components or new technologies.
It is not a Workshop Manual. Any figures given here are for explanatory purposes only and refer to the data valid at the time of writing. Content is not updated.
It is essential that you refer to the latest technical literature when carrying out maintenance and repair work.
Language: English
Format: PDF
Pages: 176
