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Home >> Mercedes Benz >> 2021 >> A220 4Matic >> Repair and Diagnosis >> Accessories & Equipment >> Wiper/Washer Systems >> Electrical System - Body - 177 Chassis (2 Of 4) >> Testing & Repair >> Remove/Install HERMES Control Unit - AR82.95-P-0019MFA

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

Model 118, 177, 243, 247 

with code 362 (HERMES communications module LTE) 

Fig 1: HERMES Control Unit Components Location - Model 177 With Code 362
G15492418REMOVINGINSTALLINGNOTESREFER TO SELF-DIAGNOSTIC SYSTEMSCourtesy of MERCEDES-BENZ USA
Topical note  Information on preventing damage to electronic components due to electrostatic discharge   AH54.00-P-0001-01A
REMOVINGINSTALLING Remove/install     
1 Switch off ignition and store transmitter key outside of transmitter range (min. 2 m).    
2 Remove light switch module.   AR54.25-P-3270MFA
3 Remove covering under instrument panel.   AR68.10-P-1501MFA
4 Remove screw/bolts (3).    
5 Remove HERMES control unit (N112/9) far enough until electrical connectors are accessible. NOTES
Do not stretch or kink lines.
This will result in damage to the lines which may impair their functional capability.
 
6 Release and disconnect electrical connectors from HERMES control unit (N112/9) and remove HERMES control unit (N112/9).    
7 Install in the reverse order.    
  Finishing activity     
8 Perform commissioning of HERMES control unit (N112/9). When replacing the HERMES control unit (N112/9).  
REFER TO SELF-DIAGNOSTIC SYSTEMS     AD00.00-P-2000-06MFA