Remove, install fiber optic cable module - AR82.70-P-0004-01A

Detach connection couplings at the corresponding control modules.
Unclock retainer clip (1) on the straight coupling (arrow).
Pull out fiber optical cable module.

Fig 1: Identifying Retainer Clip
Courtesy of MERCEDES-BENZ OF NORTH AMERICA.
Unclip coupling housing cover (arrows) and lift up cover (2)
Remove fiber optical cable module.
Cut off the defective fiber optical cable module at the ends
No longer required.

Fig 2: Identifying Coupling Housing Cover
Courtesy of MERCEDES-BENZ OF NORTH AMERICA.
Route new fiber optical module carefully in the vehicle.
When routing, the inserts must always have cover caps (3).
Insert the new fiber optical cable module into the corresponding coupling.
The connection pieces (inserts) are provided with coding lugs (arrow).

Fig 3: Identifying Cover Caps
Courtesy of MERCEDES-BENZ OF NORTH AMERICA.

The information flows from white to red. The ray must always enter the white insert (ws) in the optical fiber (coupling, chamber 1) and exit at the red insert (rt) (coupling, chamber 2). The inserts cannot be separately changed! As soon as an insert is removed from a fiber optic module, the module should be exchanged.

Fig 4: Identifying Cover Caps
Courtesy of MERCEDES-BENZ OF NORTH AMERICA.