Remove/install TV tuner - AR82.85-P-7366RT

MODEL 251 with CODE (863) Digital/analog TV tuner 

Fig 1: Identifying TV Tuner Remove/Install Components

Courtesy of MERCEDES-BENZ USA

	Remove/install
	Notes on avoiding damage to electronic components due to electrostatic discharge	All models	AH54.00-P-0001-01A
1	Temporarily store basic data from TV combination tuner (analog/digital) (A90/1) in STAR DIAGNOSIS	When replacing TV combination tuner (analog/digital) (A90/1). Copy temporarily stored basic data to new TV combination tuner (analog/digital) (A90/1).
	Connect STAR DIAGNOSIS and read out fault memory		AD00.00-P-2000-04A
		STAR DIAGNOSIS system	*WH58.30-Z-1048-13A
2	Switch off ignition and remove transmitter key from EIS control unit	On vehicles with Keyless Go, code 889: Press Keyless Go start/stop button repeatedly until the ignition is switched off. Remove transmitter key from vehicle and store it in a location beyond its transmission range (at least 2 m).
3	Remove side paneling in trunk	Right side.	AR68.30-P-4800RT
4	Remove plug (1)
5	Unscrew nuts (2)
6	Remove bracket (3) and disconnect electrical connectors (4).
	Notes on avoiding damage to fiber optic cables during repair work	Model 164, 169.0/3, 211.0/2/6, 221.0/1 245.2, 251 with Media Oriented System Transport (MOST)	AH82.60-P-0001-05AK
7	Unscrew bolt (5) and bracket (6).
8	Unscrew nut (7)
9	Remove TV combination tuner (analog/digital) (A90/1)
10	Install in the reverse order