Audi Workshop Service and Repair Manuals > A3 Mk1 > Vehicle electrics | Radio, Telephone and Navigation System, Self-diagnosis | Self diagnosis, V.A.G Inspection Service | Multi-function steering wheel self-diagnosis

Interrogating control unit version

Indicated on display:

–	Press keys 0 and 1 (01 is used to select “Interrogating control unit version” function).

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:

t	4B0907487 E: Control unit (radio operation only)

t	4B0907487 C, G, H or J: Control unit (radio and telephone operation)

t	Steering wheel electronics: Component designation

t	D01: Software version

t	Code 00001: Encoding

–	Press → key.

4B0907487E Steering wheel electronics   D01 ->

Code 00001

Indicated on display:

Rapid data transfer                HELP

Select function XX

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