If you need to hook up a diagnostic code reader or scanner to your Audi you will need to know where the diagnostic port is located. Here we have all Audi diagnostic port pictures which should tell you straight away where to look. A diagnostic port is also known as an OBD2 port or EOBD port which is used for the purpose of communicating with a vehicle to diagnose faults or reprogram modules within the vehicle. The diagnostic port is a direct link to the Audi ECU.

Audi A1
Audi A1 Mk1 diagnostic port location (2010 -

Audi A2
Audi A2 Mk1 diagnostic port location (1999 - 2005)

Audi A3
Audi A3 8L Mk1 diagnostic port location (1996 - 2003)
Audi A3 8P Mk2 diagnostic port location (2003 - 2013)
Audi A3 8V Mk3 diagnostic port location (2012 -

Audi A4
Audi A4 Mk1 B5 diagnostic port location (1994 - 2001)
Audi A4 Mk2 B6 diagnostic port location (2001 - 2005)
Audi A4 Mk3 B7 diagnostic port location (2005 - 2008)
Audi A4 Mk4 B8 diagnostic port location (2008 -

Audi A5
Audi A5 Mk1 diagnostic port location (2007 -

Audi A6
Audi A6 Mk2 C5 diagnostic port location (1997 - 2004)
Audi A6 Mk3 C6 diagnostic port location (2004 - 2011)
Audi A6 Mk4 C7 diagnostic port location (2011 -

Audi A7
Audi A7 Mk1 diagnostic port location (2010 -

Audi A8
Audi A8 Mk1 D2 diagnostic port location (1994 - 2002)
Audi A8 Mk2 D3 diagnostic port location (2003 - 2009)
Audi A8 Mk3 D4 diagnostic port location (2010 -

Audi TT
Audi TT Mk1 diagnostic port location (1998 - 2006)
Audi TT Mk2 diagnostic port location (2006 - 2014)
Audi TT Mk2 diagnostic port location (2014 - 

Audi R8
Audi R8 Mk1 diagnostic port location (2006 -

Audi Q3
Audi Q3 diagnostic port location (2012 -

Audi Q5
Audi Q5 diagnostic port location (2009 -

Audi Q7
Audi Q7 diagnostic port location (2007 -