Self Study Program 970293 – The 2019 Audi A8 Electrics and Electronics

VAG SSP 970293 – The 2019 Audi A8 Electrics and Electronics: Innovative 48-Volt MHEV Technology for Improved Fuel Efficiency. Self Study Program 970293 covers the electrics and electronics of the 2019 Audi A8, a fourth-generation brand flagship that defines the Audi brand with its new design language, innovative touch concept, and introduction of mild hybrid technology (MHEV). The MHEV technology is based on the newly developed 48-volt electrical system, which supplies the 12-volt electrical subsystem and improves the fuel efficiency of the engines.

The self-study program describes the components of the 48-volt electrical system, including the belt alternator starter (BAS) connected to the engine serpentine drive and the lithium-ion battery positioned safely under the luggage compartment floor. The program also covers the functions and tasks of the Starter Generator C29 and the installation locations and new features of the control modules for the electrical system, networking, and comfort/convenience electronics.

The 48-volt MHEV technology is particularly unobtrusive and efficient, allowing the car to coast for up to 40 seconds with the engine completely disengaged when the driver takes their foot off the accelerator at speeds between 34.1 and 99.4 mph (55 and 160 km/h). The start-stop phase begins at 13.6 mph (22 km/h) when coasting at low speed.

Self Study Program 970293 provides a detailed look at the innovative 48-volt MHEV technology and advanced electronics of the 2019 Audi A8, making it a valuable resource for technicians and enthusiasts interested in understanding the performance and capabilities of this cutting-edge technology. The program covers the components of the electrical system, the functions of the Starter Generator C29, and the installation locations and new features of the control modules, providing a comprehensive overview of the car’s electrics and electronics.

With its advanced 48-volt MHEV technology and innovative electronics, the 2019 Audi A8 offers improved fuel efficiency and a powerful driving experience. Its use of advanced technology and innovative design elements ensures a reliable and efficient car, making it a top choice for any driver seeking high performance and advanced technology in a luxury car.


  • Introduction
  • Power supply
    • 12-volt car battery
    • Jump start terminal
    • 12-volt supply structure
    • Fuses and relays
    • Electrical wiring
  • 48-volt electrical system
    • General description
    • Components of the 48-volt electrical system
    • Design of the 48-volt electrical system
    • Starter Generator C29
    • 48 Volt Battery A6
    • Voltage Converter, 48V/12V A7
    • Working on the 48-volt electrical system
    • The 48-volt MHEV (Mild Hybrid Electric Vehicle)
  • Networking 
    • Topology
    • Bus systems used in the Audi A8
  • Control modules
    • Data Bus on Board Diagnostic Interface J533
    • Vehicle Electrical System Control Module J519 (BCM1)
    • Windshield wiper and washer system
    • Comfort System Central Control Module J393 (BCM2)
    • Rear Lid Control Module J605
    • Garage Door Opener Control Module J530
    • Windshield Defogger Control Module J505
    • Instrument Cluster Control Module J285
    • Windshield Projection Head Up Display Control Module J898
    • Door Control Modules J386/J387
    • Memory Seat/Steering Column Adjustment Control Module J136/J521
    • Sunroof Control Module J245/J392
    • Power Adjustable Steering Column Control Module J866
    • Electronic Steering Column Lock Control Module J764
    • Steering Column Electronics Control Module J527
  • Audi drive select 
    • Controllable systems
    • Driving modes
    • Displays and operation
  • Exterior lighting 
    • Operation
    • Headlights
    • Matrix beam
    • Laser lights (S8)
    • Tail lights
  • Interior lighting 
    • Background lighting
    • eSelf-Study Programs
  • Knowledge assessment

The eSelf-Study Program (eSSP) teaches a basic understanding of the design and mode of operation of new models, new automotive components or new technologies.

It is not a repair manual! Figures are given for explanatory purposes only and refer to the data valid at the time of preparation of the SSP.
For further information about maintenance and repair work, always refer to the current technical literature.

Language: English
Format: PDF
Pages: 113

Self Study Program 970293 – The 2019 Audi A8 Electrics and Electronics