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Home >> Mercedes Benz >> 2017 >> GLS63 AMG >> Repair and Diagnosis >> Electrical >> Motors, Switches, Relays >> Electrical System - Body - 166 Chassis 5 Of 8 >> Testing & Repair >> Remove/Install Telematics Services Communications Module Control Unit - AR82.85-P-0020GQA

Remove/Install Telematics Services Communications Module Control Unit - AR82.85-P-0020GQA

Model 166.8 

with code 350 (Ecall emergency call system, Europe) 

Model 166.8 

with code B54 (Live Traffic Information) 

Fig 1: Telematics Services Communications Module Control Unit Components Location - Model 166.8 With Code 350, B54
G14137132NOTESREMOVINGINSTALLINGREFER 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 telematics services communications module (N112/2) When replacing telematics services communications module (N112/2).  
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 Remove side paneling in left side of luggage compartment   AR68.30-P-4800GQX
4 Release and disconnect electrical connectors at telematics services communications module (N112/2)    
5 Unscrew nut (1)    
6 Lift up and remove telematics services communications module (N112/2) (arrow)    
7 Install in the reverse order