Retrofit comfort telephony - AN82.70-P-0008CW

MODEL 204.0## /2## (except 204.077 /277) 1# up to 28.2.11 up to model year 2011 with CODE (523) MB Audio 20 radio with CODE (510) Audio 20 with CD changer with CODE (525) MB Audio 50 APS radio with CODE (511) Audio 50 APS with DVD changer with CODE (527) COMAND APS with single DVD drive (with navigation) with CODE (512) COMAND APS with DVD changer except CODE (386) Comfort telephony except CODE (494) USA version except CODE (498) Japan version 

Shown on model 204.2 

Fig 1: Identifying Retrofit Comfort Telephony Components (1 Of 2)

Courtesy of MERCEDES-BENZ USA

Fig 2: Identifying Retrofit Comfort Telephony Components (2 Of 2)

Courtesy of MERCEDES-BENZ USA

	Remove
1	Remove right paneling next to rear seat		AR68.30-P-1451CW
2	Remove cover below right dashboard		AR68.10-P-1520CW
3	Remove cover below left of instrument panel
4	Remove front left and right floor covering
5	Remove radio (A2), radio with auto pilot system (A2/56) or COMAND controller unit (A40/3)		AR82.60-P-7502CW
6	Set selector lever in position "N" or gearshift lever to neutral position
7	Open cover of stowage box/tray (6) or ashtray	On vehicles with code (301) Ashtray package/smoker package, an ashtray is installed instead of the stowage box/tray (6).
8	Unclip cover (7) upward in front area and remove	Installation:  Check mechanism for stowage box/tray (6) and ashtray for proper function, if necessary loosen threaded connection from center console (5) and tighten center console (5) without tension.
9	Remove stowage box (6) or ashtray.
10	Remove center console (5)	On vehicles with code (581) Comfort automatic air conditioning	AR68.20-P-2000CW
11	Remove front SAM control unit with fuse and relay module (N10/1) and place to one side with electrical connectors attached		AR54.21-P-1260CW
12	Remove guide rail for load compartment cover	Model 204.2	AR68.30-P-1100CX
13	Remove dummy roof antenna (1) or multifunction antenna (A28/11)	The dummy roof antenna (1) or multifunction antenna (A28/11) is no longer required.
		Model 204.0	AR82.70-P-8951CW
		Model 204.2	AR82.70-P-8951CX
	Install
14	Install new multifunction antenna (A28/11) for comfort telephony	Model 204.0	AR82.70-P-8951CW
		Model 204.2	AR82.70-P-8951CX
15	Retrofit antenna line (3)	Model 204.0	AN82.70-P-0008-02CW
		Model 204.2	AN82.70-P-0008-02CX
16	Install right paneling next to rear seat		AR68.30-P-1451CW
17	Install guide rail for load compartment cover	Model 204.2	AR68.30-P-1100CX
18	Retrofit power supply wiring harness (2)		AN82.70-P-0008-01CW
19	Retrofit phone bracket		AN82.70-P-0001-02CW
20	Install remaining parts	Operation steps 11 to 2.
21	Enter special equipment in online vehicle data card via vehicle documentation system (VeDoc)	Add:  Enter code (386) Comfort telephony.
22	Document retrofitted equipment through VeDoc	Attach the note "Comfort telephony retrofitted as per AN82.70-P-0008CW " under field organization texts to design group 82.
23	Connect Star Diagnosis and select vehicle via the vehicle identification number (VIN)
24	Run variant coding with XENTRY using software calibration number (SCN)	Variant coding with XENTRY using the software calibration number (SCN) must be carried out for the following control units. Instrument cluster "Radio" (with code (523) MB Audio 20 radio or code (510) Audio 20 with CD changer) "Radio" with auto pilot system (with code (525) MB Audio 50 APS radio or code (511) Audio 50 APS with DVD changer) "COMAND controller unit" (with code (527) COMAND APS with single DVD drive (with navigation) or code (512) COMAND APS with DVD changer)
25	Disconnect Star Diagnosis
26	Perform function test of comfort telephony