New software for the Drive Kit Plus for the iPhone 4/4S became available which integrates the audio buttons.
New software for the Drive Kit Plus was released, which the Mercedes-Benz dealer can copy into the head unit, so one can now switch between Audio 20 / COMAND and the Drive Kit Plus - and so use all the features of the audio system. With the update, the Radio, Disc, Navi, Tel, Silent, SYS buttons, as well as Ending and Accepting Calls are supported. The update is now available for purchase with part number B6 782 3800 for 28 euros.
The update is available for the following series:
A-Class W176 from 09/12
B-Class W246 from 11/11
C-Class C204 from 06/11, S204 from 03/11 W204 from 03-07
CL-Class C216 from 09/06 to 08/10
CLA C117 from 04/13
CLS SB X218 from 10/12, C218 Coupe from 01/11
E-Class Estate S212 from 11/09-03/13, W212 from 09/09 to 03/13
E-Class Cabrio A207 03/12 - 04/13, C207 Coupé 05/09-04/13
GL-Class X166 from 11/12
M-Class W166 from 11/11
S-Class W221 from 06/09 to 06/13
SL-Class R231 from 03/12
SLK R172 from 03/11
http:///2014/01/neue-software-fuer-das-drive-kit-plus-iphone-44s/