I don't think I have posted this site because I wanted to keep it a secret so you all think I am amazing but I have had a long talk with myself and decided to share.
It lists all Mercedes cars and what hands free options are available.
Broken down from the last 3 years of the r170 when bt was available up to
2014
2009-2014 R171 & R172
Integrated Bluetooth
2005-2008 R171
Bluetooth Interface Module Option
Telephone Handset Cradle Option
2001-2004 R170
Bluetooth Cradle Adapter
Vehicle Selector
It lists all Mercedes cars and what hands free options are available.
Broken down from the last 3 years of the r170 when bt was available up to
2014
2009-2014 R171 & R172
Integrated Bluetooth
2005-2008 R171
Bluetooth Interface Module Option
Telephone Handset Cradle Option
2001-2004 R170
Bluetooth Cradle Adapter
Vehicle Selector