audi Workshop Repair Guides

Audi Workshop Service and Repair Manuals

ABOUT US
Function - Basic audio playback > < Repairing wiring harnesses and electrical connectors

A5

  • Vehicle electrics
  • System description - infotainment and audio output (MOST)
  • Self diagnosis, V.A.G Inspection Service
  • General information on audio output (MOST)

Definition of terms
   
Definition of terms
TermDefinition
MMI basic system (MMI2G only)The system combines various infotainment control units. In contrast to the MMI high system, not all infotainment control units can be installed in an MMI basic system (e.g. TV tuner).
MMI high system (MMI2G only)The system combines various infotainment control units. In an MMI high system all control units can be installed.
Bus versionsMOST bus
t  MOST stands for »Media-Oriented Systems Transport«
t  Optical data transfer via fibre-optic cables
t  High-speed data transfer
CAN bus
t  CAN stands for »Controller Area Network«
t  Two-wire bus
LIN bus
t  LIN stands for »Local Interconnect«
t  Single-wire bus
t  Master/slave principle
MMIThe Multi Media Interface (MMI) is an integrated operating concept used by Audi for easy, logical and intuitive operation of on-board car systems and infotainment components.
t  2G stands for 2nd generation
t  3G stands for 3rd generation

   

  • Vehicle electrics
  • System description - infotainment and audio output (MOST)
  • Self diagnosis, V.A.G Inspection Service
  • General information on audio output (MOST)

Function - Basic audio playback > < Repairing wiring harnesses and electrical connectors