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Remove/install media interface control unit - AR82.60-P-1030CY

MODEL 204.0/2/3/9, 207, 212 with CODE 518 (Media interface) 

MODEL 218.3 as of model year 2013 up to model year 2015 with CODE 518 (Media interface) 

MODEL 218.9 up to model year 2015 with CODE 518 (Media interface) 

Fig 1: Identifying Media Interface Control Unit Remove/Install Components - Shown On Model 204.9
G09977611Courtesy of MERCEDES-BENZ USA

Illustrated on model 204.9 

NOTES Notes on avoiding damage to optical fibers during repair work   AH82.60-P-0001-05AK
NOTES Information on preventing damage to electronic components due to electrostatic discharge   AH54.00-P-0001-01A
REMOVINGINSTALLING Remove/install     
1 Connect diagnostic system and perform initial startup of media interface control unit (N125/1) When replacing the media interface control unit (N125/1).  
REFER TO SELF-DIAGNOSTIC SYSTEMS     AD00.00-P-2000-04A
2 Remove glove compartment (1) MODEL 204.0/2/3 AR68.10-P-1200CW
    MODEL 204.9 AR68.10-P-1200CY
    MODEL 207 AR68.10-P-1400EC
    MODEL 212 AR68.10-P-1200EW
    MODEL 218 AR68.10-P-1400EL
3 Unclip media interface control unit (N125/1) from bracket (2) and pull out until optical fiber connector (3) and electrical connectors (4, 5) are accessible    
4 Disconnect optical fiber connector (3)    
5 Cover equipment connector at media interface control unit (N125/1) and optical fiber connector (3)    
6 Disconnect electrical connectors (4, 5) and remove media interface control unit (N125/1)    
7 Install in the reverse order