Retrofit audio 20 CD with CD changer - AN82.60-P-0012W

MODEL 172.4## (except 172.475) 1# with CODE (523) MB Audio 20 radio except CODE (527) COMAND APS with single DVD drive (with navigation) except CODE (512) COMAND APS with DVD changer except CODE (494) USA version except CODE (498) Japan version 

Fig 1: Identifying Radio

Courtesy of MERCEDES-BENZ USA

	Removing
1	Remove Audio 20 radio (A2)	The Audio 20 radio (A2) is not longer required.	AR82.60-P-7502W
	Install
2	Install new Audio 20 radio (A2) with CD changer		AR82.60-P-7502W
3	Enter special equipment in online vehicle data card via vehicle documentation system (VeDoc)	Add:  Code (510) Audio 20 with CD changer Delete:  code (523) MB Audio 20 radio.
4	Document retrofitted equipment through VeDoc	Attach "Audio 20 CD with CD changer retrofitted, as per AN82.60-P-0012W " note under the field organization texts to design group 82.
5	Connect Star Diagnosis and select vehicle via the vehicle identification number (VIN)
6	Run variant coding with XENTRY using software calibration number (SCN)
7	Disconnect Star Diagnosis
8	Perform function test	See operating instructions for Audio 20 radio (A2) with CD changer.