AN82.70-P-0002-01APP Retrofitting Optical Waveguide Wiring Harness

AN82.70-P-0002-01APP Retrofitting Optical Waveguide Wiring Harness
- Model 203.0 with sound system
- except CODE (855) TELE AID
- with CODE (810) Sound system in combination with COMAND or radio in the Audio range






1 Prepare optical waveguide wiring harness (1) as shown in figure.

A34/4 Telephone interface
N Coupler
X39/43 Optical waveguide connector D2B
ws white insert






2 Route optical waveguide wiring harness (1) in vehicle as shown in figure.

A34/4 Telephone interface
X39/43 Optical waveguide connector D2B






3 Check optical waveguide routing on right of trunk.
In this case, only the amplifier for the sound system (N40/3) may be installed.






4 Check optical waveguide routing in vehicle.

The maximum station sequence is:
- Radio (A2)
- Amplifier for sound system (N40/3)
- CD changer (A2/6) (if installed)
- Radio (A2)

X39/43 Optical waveguide connector D2B
rt red insert
ws white insert






5 Expose the two optical waveguide connectors D2B (X39/43) in the area of the cable duct of the right rear door and check the routing direction.
The optical waveguides routed toward the front in the direction of motion lead to the radio (A2) or CD changer. The optical waveguides routed toward the rear to the trunk in the direction of motion lead to the amplifier for sound system (N40/3).

rt red insert
ws white insert






6 Check the optical waveguides leading to the front to the radio (A2) at couplers A and B.
7 Find the coupler (B) that has a red insert (rt) on the radio side (A2) (arrow) and lay aside (it is not altered).






8 Remove the white insert (ws) originating from the radio out of the production coupler (A).
9 Insert the removed white insert (ws) into the new coupler (N) for the optical waveguide wiring harness (1) and close the coupler (N). Remove the green cover cap from the white insert (ws) of the optical waveguide wiring harness (1) and insert the white insert (ws) into the old coupler (A) and close the coupler.

X39/43 Optical waveguide connector D2B






10 The nominal configuration in the vehicle now is:
- Radio (A2)
- Amplifier for sound system (N40/3)
- Telephone interface (A34/4)
- CD changer (A2/6) (if installed)
- Radio (A2)

A Production coupler (has been rerouted)
B Production coupler (unchanged)
N New coupler
rt red insert
ws white insert






11 Route optical waveguide wiring harness (1) through the rear panel into the trunk.






12 Route branch-off line to the telephone interface (A34/4) from optical waveguide wiring harness (1) on the accessories plate as shown in the figure and fasten with adhesive felt. Connect optical waveguide at the telephone interface (A34/4).