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 III (Route Navigation) (from Wk 29/99)

Radio, Telephone and Navigation System - Self-diagnosis

Self-diagnosis of navigation system III (Route Navigation) (from Wk 29/99)

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:

4B0919887A Navigation 0001 ⇒

Code 00000 WSC 06812

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