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Remove/Install HERMES Control Unit - AR82.95-P-0019GW

Model 463 

up to model year 2019 

with code EK1 (HERMES communications module LTE) 

Model 463 

up to model year 2019 

with code EM2 (Communications module (UMTS) for the use of Merced) 

Fig 1: HERMES Control Unit Components Location - Model 463 Up To Model Year 2019 With Codes EK1 And EM2
G13669881Courtesy of MERCEDES-BENZ USA
  Notes on avoiding damage to optical fibers during repair work   AH82.60-P-0001-05AK
  Information on preventing damage to electronic components due to electrostatic discharge   AH54.00-P-0001-01A
REMOVINGINSTALLING Remove/install     
1 Perform initial startup of the HERMES control unit (N112/9) When replacing the HERMES control unit (N112/9).  
REFER TO SELF-DIAGNOSTIC SYSTEMS     AD00.00-P-2000-04A
2 Switch off ignition and store transmitter key outside of transmission range (min. 2 m)    
3 Unclip retaining clips (1) from cover (2) underneath the front passenger seat SPECIAL TOOL Clip remover Fig 2
4 Remove cover (2)    
5 Unscrew nuts (3) from HERMES control unit (N112/9)    
6 Remove HERMES control unit (N112/9) until the electrical connectors (4) and optical connector (5) are accessible    
7 Release and disconnect electrical connectors (4) and optical connector (5) IMPORTANT The number varies according to vehicle equipment.  
8 Remove HERMES control unit (N112/9)    
9 Install in the reverse order    
Fig 2: Identifying Clip Remover (452 589 01 63 00)
G13669882Courtesy of MERCEDES-BENZ USA