Audi Workshop Service and Repair Manuals > A2 > Vehicle electrics | Radio, Telephone and Navigation System, Self-diagnosis | Self diagnosis, V.A.G Inspection Service | Self-diagnosis of Navigation System III

Interrogating control unit version

Procedure

–	Start Nav III self-diagnosis → Chapter.

Indicated on display:

–	Press keys 0 and 1 (“Interrogating control unit version”).

Rapid data transfer                HELP

Select function XX

Indicated on display:

–	Confirm entry by pressing Q key.

Rapid data transfer                    Q

01 - Interrogating control unit version

Following display appears after approx. 5 seconds:

4B0919887B     Navigation     0001    ->

Code 00000                WSC XXXXX

Navigation system control unit version
4B0919887B	Part number
Navigation	Control unit designation
0001	Software version
Code 00000	Control unit encoding
WSC XXXXX	Workshop code

–	Press → key.

Indicated on display:

Rapid data transfer                HELP

Select function XX

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