2014 Audi S7FACTORY OEM SERVICE PROCEDURE

Instrument Cluster Multi-Pin Connector Assignment

Gray 32-pin Connector -A-

Fig 1: Identifying MOST Bus Connection
GWWA90-10145Courtesy of AUDI OF AMERICA, LLC
  1. MOST Bus ring break diagnosis
  2. Not assigned
  3. CAN Bus instrument cluster Low
  4. CAN Bus instrument cluster High
  5. Fuel tank sensor ground
  6. Fuel Level Sensor -G-
  7. Fuel Level Sensor -G-
  8. Display unit button -E506- (reset button)
  9. Fuel Level Sensor 2 -G169-
  10. Fuel Level Sensor 2 -G169-
  11. Not assigned
  12. Not assigned
  13. Not assigned
  14. Not assigned
  15. Not assigned
  16. Not assigned
  17. Not assigned
  18. Not assigned
  19. Night vision system control module -J853- "-"
  20. Night vision system control module -J853- "+"
  21. Not assigned
  22. Not assigned
  23. Not assigned
  24. Not assigned
  25. Not assigned
  26. Not assigned
  27. Not assigned
  28. Not assigned
  29. Terminal 31
  30. Terminal 31
  31. Terminal 30
  32. Terminal 30

Optical MOST-Bus Connection (Fiber Optic) -B-

Fig 2: Identifying MOST Bus Connection
GWWA90-10145Courtesy of AUDI OF AMERICA, LLC
  1. MOST Bus input
  2. MOST Bus output
Factory Service Tools

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When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

  • • You smell fuel, burning insulation, or see smoke.
  • • Brakes feel soft, pull hard to one side, or make grinding noises.
  • • The engine overheats, stalls repeatedly, or misfires under load.
  • • You are missing required tools, torque specs, or safe lifting equipment.
  • • You are not confident in the next step or safety outcome.