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

MODEL 164.8 with CODE (863) Digital/analog TV tuner 

Fig 1: Identifying TV Tuner Remove/Install Components

Courtesy of MERCEDES-BENZ USA

	Read out data
	Notes on avoiding damage to electronic components due to electrostatic discharge		AH54.00-P-0001-01A
1	Read out coding of TV combination tuner (analog/digital) (A91/1) and temporarily store in STAR DIAGNOSIS diagnostic unit	Only if a new TV combination tuner (analog/digital) (A91/1) is to be installed and the old device can still be read out.
	Connect STAR DIAGNOSIS and read out fault memory		AD00.00-P-2000-04A
		STAR DIAGNOSIS diagnosis system	*WH58.30-Z-1048-13A
	Remove/install
2	Switch off radio and entertainment system, turn key in ignition switch to position "0"	On vehicles with Keyless Go, code 889: Press keyless go start/stop button repeatedly until ignition is switched off
3.1	Remove spare tire well panel	On vehicles with spare wheel.	AR68.30-P-4620GZ
3.2	Remove stowage compartment under the load compartment floor	On vehicles with TIREFIT.
4	Remove left styrofoam insert from spare tire well
5	Unscrew nuts (1)
6	Mark antenna plugs and jacks to match each other by color	This is to ensure that they are not mixed up during installation.
7	Detach all connectors on the TV combination tuner (analog/digital) (A91/1)	The number of connectors varies depending on the equipment and connected peripherals.
	Remove TV combination tuner (analog/digital) (A91/1) with bracket	Remove bracket if necessary.
	Install in the reverse order
	Code and test the TV combination tuner
	Code the TV combination tuner (analog/digital) (A91/1)	If a new TV combination tuner (analog/digital) (A91/1) was installed and the old device could still be read out: Transfer the coding temporarily stored in the STAR DIAGNOSIS diagnostic unit to the new device, read out fault memory. If a new TV combination tuner (analog/digital) (A91/1) was installed, but the old device could not be read out anymore: Code the TV combination tuner (analog/digital) (A91/1).
	Connect STAR DIAGNOSIS and read out fault memory		AD00.00-P-2000-04A
		STAR DIAGNOSIS diagnosis system	*WH58.30-Z-1048-13A
	Test the TV combination tuner (analog/digital) (A91/1)