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Home >> Mercedes Benz >> 2008 >> E550 Base >> Repair and Diagnosis >> Accessories & Equipment >> Exterior Lights >> Electrical System -- Testing & Repair -- E550 (211.072) >> Testing & Repair >> Remove/install fiber optic cable for the Media Oriented System Transport (MOST) - AR82.60-P-0001TC

Remove/install fiber optic cable for the Media Oriented System Transport (MOST) - AR82.60-P-0001TC

MODEL 211.0 /2 up to 1.6.08 except CODE (809) Model year 2009 with CODE (349) E-call emergency call system with CODE (380) Preinstallation for MB telephone "Cell phone", complete with CODE (382) MB telephone "Cell phone" in armrest with CODE (384) Telephone preinstallation for USA with CODE (385) Telephone preinstallation for Canada with CODE (813) Voice control system (VCS [SBS]) between fiber optic cable connector (MOST) and hands-free system/VCS [SBS] control unit 

Shown on model 211.0 

Fig 1: Identifying Fiber Optic Cable Module, Hands-Free System Control Unit, Voice Control System Control Unit & Fiber Optic Cable Connector
G07502816Courtesy of MERCEDES-BENZ OF NORTH AMERICA.

Ring sequence of the fiber optic cable for the Media Oriented System Transport (MOST), shown for maximum equipment 

Fig 2: View Of Ring Sequence Of Fiber Optic Cable For Media Oriented System Transport
G07502817Courtesy of MERCEDES-BENZ OF NORTH AMERICA.
REMOVINGINSTALLING Remove/install     
IMPORTANT Notes on removal/installation of the fiber optic cable for the Media Oriented System Transport (MOST)   AH82.60-P-0001-06T
1 Remove cargo retainers in left rear legroom    
2 Remove left rear door sill molding    
3 Remove rear seat cushion Model 211.0 without code (287) Through-loading feature AR91.12-P-1020T
Model 211.0 with CODE (287) Through-loading feature AR91.12-P-1020TA
Model 211.2 AR91.12-P-1020TB
4.1 Remove side bolster and cover next to left rear seat backrest Model 211.0  
4.2 Remove side paneling on left side of rear compartment Model 211.2
IMPORTANT Only detach enough side paneling to allow cable duct in left rear to be fully opened.
AR68.30-P-4780T
5 Remove cover above telephone control unit in luggage compartment Model 211.0 AR82.70-P-0003T 
Model 211.2 AR82.70-P-0003TA
6 Fully open left rear cable duct    
7 Remove fiber optic cable module for Media Oriented System Transport (MOST)   AR82.60-P-0001-01TC 
NOTES Notes on avoiding damage to fiber optic cables during repair work   AH82.60-P-0001-05AK
8 Install in the reverse order    
9 Connect STAR DIAGNOSIS, read out fault memory and erase if necessary IMPORTANT Reconfigure MOST ring and perform "Restart of optical ring".  
REFER TO SELF-DIAGNOSTIC SYSTEMS Connect STAR DIAGNOSIS and read out fault memory   AD00.00-P-2000-04A
10 Carry out start-up and function test