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Home >> Mercedes Benz >> 2017 >> C300 Base, 2D Convertible >> Repair and Diagnosis >> Electrical >> Motors, Switches, Relays >> Electrical System - Body - 205 Chassis - 3 Of 5 >> Testing & Repair >> Remove/Install Telematics Services Communications Module Control Unit - AR82.85-P-0020LWH

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

Model 205.047/247 

up to model year 2019 

with code 06U (Mercedes connect me standard services) 

Model 205.047/247 

up to model year 2019 

with code 350 (Ecall emergency call system, Europe) 

Model 205.047/247 

up to model year 2019 

with code B54 (Live Traffic Information) 

Model 205.047/247 

up to model year 2019 

with code B57 (KOM Module battery charging) 

Shown on model 205.2 except code 550 (Trailer hitch) 

Fig 1: Telematics Services Communications Module Control Unit Components Location - Model 205.047 Up To Model Year 2019 With Code 06U, 350, B54 And B57
G13023923WARNINGREMOVINGINSTALLINGREFER TO SELF-DIAGNOSTIC SYSTEMSIMPORTANTIMPORTANTCourtesy of MERCEDES-BENZ USA
WARNING Risk of injury  caused by fingers being jammed or pinched when removing, installing or aligning hoods, doors, trunk lid/rear-end door or sliding roof. No parts of the body or limbs should be within the operating area when the components are moving. AS00.00-Z-0011-01A
  Risk of death  when working on component parts and systems with U >= 30 V alternating voltage (AC) or U >= 60 V direct voltage (DC) Do not touch damaged or defective live component parts and lines or non-insulated electrical connections and lines. AS00.00-Z-0035-01A
  General information on handling vehicles with high-voltage on-board electrical system and/or lithium-ion battery and/or gaseous-fuel drive system   AH00.00-Z-0300-01A
  Information on preventing damage to electronic components due to electrostatic discharge   AH54.00-P-0001-01A
  Notes on HANDS-FREE ACCESS   AH80.61-P-0001-01A
REMOVINGINSTALLING Remove/install     
1 Commission telematics services communication module (N112/1). When replacing telematics services communications module (N112/1).  
REFER TO SELF-DIAGNOSTIC SYSTEMS     AD00.00-P-2000-04B
2 Switch off ignition and store transmitter key outside of transmission range (min. 2 m).    
3.1 Remove trunk floor rear section. Model 205.047
up to model year 2019
with code 06U (Mercedes connect me standard services)
Model 205.047
up to model year 2019
with code 350 (Ecall emergency call system, Europe)
Model 205.047
up to model year 2019
with code B54 (Live Traffic Information)
Model 205.047
up to model year 2019
with code B57 (KOM Module battery charging)
 
3.2 Fold over load compartment floor rear section (1). Model 205.247
up to model year 2019
with code 06U (Mercedes connect me standard services)
Model 205.247
up to model year 2019
with code 350 (Ecall emergency call system, Europe)
Model 205.247
up to model year 2019
with code B54 (Live Traffic Information)
Model 205.247
up to model year 2019
with code B57 (KOM Module battery charging)
 
4 Remove trim (2).    
5 Remove rear fuse and relay module (3) from holder (4) and place to one side with attached electric lines.   AR54.15-P-0001LW
6 Remove trailer recognition control unit from holder (4) and place to one side with attached electric lines. Model 205.047/247 up to model year 2019
with code 06U (Mercedes connect me standard services)
with code 550 (Trailer coupling)
Model 205.047/247
up to model year 2019
with code 350 (Ecall emergency call system, Europe)
with code 550 (Trailer coupling)
Model 205.047/247
up to model year 2019
with code 550 (Trailer coupling)
with code B54 (Live Traffic Information)
Model 205.047/247
up to model year 2019
with code 550 (Trailer coupling)
with code B57 (KOM Module battery charging)
 
7 Remove holder (4) and place to one side, as shown. IMPORTANT The rear SAM control unit does not have to be detached from the bracket (4).  
8 Release electrical connections (5) and disconnect. IMPORTANT The number of electrical connectors (5) can vary depending on the equipment installed.  
9 Unscrew nuts (6).    
10 Remove telematics services communication module (N112/1).    
11 Install in the reverse order