Audi Workshop Service and Repair Manuals > A4 Mk1 > Vehicle electrics | Radio, Telephone and Navigation System - Self-diagnosis | Self diagnosis, V.A.G Inspection Service | Self-diagnosis of navigation system II-D (Navigation System Plus) (from week 48/99)

Radio, Telephone and Navigation System - Self-diagnosis

Self-diagnosis of navigation system II-D (Navigation System Plus) (from week 48/99)

Interrogating control unit version

→ Indicated on display:

Rapid data transfer HELP

Select function XX

→ Indicated on display:

Rapid data transfer Q

01 - Interrogate control unit version

→ Adjacent display appears after approx. 5 s:

4B0035192F Navigation BNO 0004 ⇒

Code 00000 WSC 06812

‒ 4B0035192F: Part number of operating electronics control unit for navigation system (refer also to Parts List)
‒ Navigation: Component designation
‒ BNO: Manufacturer
‒ 0004: Software version of operating electronics control unit for navigation system with CD drive
‒ Code 00000: Code not used
‒ WSC 06812: Workshop code

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