Retrofit D-net portable CTEL - AZ82.70-P-0001VV

Model 171 

with CODE (527) COMAND APS (with navigation) 

with CODE (525) MB Audio 50 APS radio 

with CODE (273) Portable CTEL preinstallation (non-networked), VDA wiring 

Shown in version with radio 

Fig 1: Identifying D-Net Portable CTEL - Shown In Version With Radio

Courtesy of MERCEDES-BENZ USA

	Remove
1	Connect no load current retention unit		*WH58.30-Z-1012-09A
	Risk of explosion  caused by oxyhydrogen gas. Risk of poisoning and caustic burns  caused by swallowing battery acid. Risk of injury  caused by burns to skin and eyes from battery acid or when handling damaged lead-acid batteries	No fire, sparks, open flames or smoking. Wear acid-resistant gloves, clothing and glasses. Pour battery acid only into suitable and appropriately marked containers.
2	Disconnect ground cable of battery
		Model 171.4	AR54.10-P-0003V
	Notes on battery	All models
3	Remove the front passenger footrest
	Install
4.1	Retrofit telephone antenna	CTEL antenna On vehicles without antenna for CTEL (D and E network), code 354.	AZ82.70-P-0110V
5	Retrofit the CTEL mounting bracket with PSC adapter plug	Refer to installation instructions for accessories.
6	Retrofit control unit and interface		AZ82.70-P-0008-01V
7	Retrofit hands-free system wiring harness		AZ82.70-P-0005-02VV
8	Enable using Star diagnosis	Control units Information and communication ICM Control unit adaptations Variant coding Special equipment Enable telephone.
9	Carry out startup and function test	Check telephone for proper functioning according to operating instructions.
10	Install remaining parts onto vehicle	3 up to 1