How Do I know if my car is a can-bus vehicle or not?

[Marc1]

Sorry, might be a daft question, but I don't know how to find out, could someone point me in the right direction please?

 

[bearthebruce]

Here you go: http://www.ross-tech.com/vag-com/canbus.html

 

[Marc1]

Brilliant, thanks Bruce. My A4 is a non can-bus.