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Home >> Mercedes Benz >> 2019 >> CLA250 4Matic, Gas >> Repair and Diagnosis >> Electrical >> Body Electrical >> Electrical System - Body - 117 Chassis - 1 Of 2 >> Testing & Repair >> Remove/install HERMES control unit - AR82.95-P-0019NKC

Remove/install HERMES control unit - AR82.95-P-0019NKC

MODEL 117.3 with CODE 360 (HERMES UMTS) 

MODEL 117.3 with CODE 362 (HERMES LTE) 

Fig 1: HERMES Control Unit Remove/Install Components
G11065851NOTESREMOVINGINSTALLINGREFER TO SELF-DIAGNOSTIC SYSTEMSCourtesy of MERCEDES-BENZ USA
NOTES Information on preventing damage to electronic components due to electrostatic discharge   AH54.00-P-0001-01A
REMOVINGINSTALLING Remove/install     
1 Perform initial startup of 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 on ignition and store transmitter key outside of transmission range (min. 2 m)    
3 Remove C-pillar trim at left   AR68.30-P-4490NKC
4 Loosen rear shelf until HERMES control unit (N112/9) is accessible   AR68.30-P-4581NKC
5 Unscrew nuts (2)    
6 Remove HERMES control unit (N112/9) and position it in a way that allows for the electrical connectors (3) to be disconnected    
7 Detach electrical connections (3)    
8 Install in the reverse order