Remove/install navigation processor - AR82.85-P-7373RT

MODEL 251.### #A up to 089019 with CODE (494) USA version with CODE (530) COMAND APS USA (with navigation system) 

Fig 1: Electronic Stability Program (ESP) - Electrical Function Schematic (2 Of 2)

Courtesy of MERCEDES-BENZ USA

	Remove/install
	Information on preventing damage to electronic components due to electrostatic discharge		AH54.00-P-0001-01A
1	Remove radio (2)	Protect trim parts of the instrument panel and center console from scratches.	AR82.60-P-7502RT
2	Remove screws (3) and remove navigation processor (1) from radio (2) by pushing back carefully	The navigation processor (1) must not be pulled upward to remove the radio (2). This would damage the electrical connectors. The electrical connectors are integrated into the radio (2) and in the navigation processor (1). They are disconnected by pushing back (direction of arrow) the navigation processor (1). Make sure that the electrical connectors of the radio (2) or navigation processor (1) are in alignment before pushing them together.
3	Install in the reverse order