Audi A4 2005: Diagnostic Port & Connector

Translated on 11-08-2026, 5:54.

...can anyone tell me where I can find it? And what kind of VAG-COM (which version or higher?) would I need for that?

Sure, here's the translation:

"Thank you."

Translated on 11-08-2026, 5:55.

Hi,

You probably already have the A4 type 8EC/8ED. In that case, you need a system with CAN bus support.
http://shop.dieselschrauber.de/index.php/cPath/23

16-pin diagnostic connector: Unfortunately, I don't know the exact location offhand, but it's generally located somewhere near the steering wheel, below the driver's side hood release lever, or in the center console (ashtray area). Usually, there's a cover plate (approximately 6x2cm) over it for aesthetic reasons.

Best regards, Rainer.

Guest Free account, no CAN development support

The left driver's footwell, near the hood release lever, exactly as described above, is correct 100%.

Translated on 11-08-2026, 5:57.

A CAN interface is not necessarily required; it ultimately depends on the engine type and equipment. However, it's difficult to say for sure beforehand, as we don't have the exact specifications. Here's a small list that might be helpful.

http://www.ross-tech.com/vag-com/cars/applications/a4s4.html

At least VAG-COM 504.1 is required, but for this model, the latest beta version 506.0 is recommended!

http://www.ross-tech.com/vag-com/download/beta/current.html