Retrofit comfort telephony wiring harness - AN82.70-P-0008-01EWB

MODEL 212.0## 1# up to 5/31/10 up to model year 2010 in vehicle 

Connection scheme 

Fig 1: Comfort Telephony Wiring Harness Connection Circuit Diagram

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Routing diagram 

Fig 2: Comfort Telephony Wiring Harness Routing Diagram

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1. Route blue line (BU) of comfort telephony wiring harness, as shown, to the left next to the selector lever module in the slot of the removed audio component.
2. Release lock (11) at black 44- pin connector (9) and insert blue line (BU) into contact cavity "13" at black 44-pin connector (9).
3. Lock lock (11) at black 44-pin coupling (9).
   Fig 3: Black 44- Pin Connector Lock And Coupling

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4. Fix blue line (BU) of comfort telephony wiring harness in place with felt tape (arrow A) at center console (2).
5. Fix blue line (BU) of comfort telephony wiring harness in place at vehicle wiring harness using cable tie (arrow B).
6. Open cover (12) of cable duct (13).
7. Route comfort telephony wiring harness (1) from center console (2) to cable duct (13) of left frame floor assembly, as shown.

   Ensure sufficient clearance of comfort telephony wiring harness (1) below rear floor covering (14).

   Fig 4: Routing Comfort Telephony Wiring Harness From Center Console To Cable Duct

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8. Feed red/yellow line (RD/YE) and brown line (BN) of comfort telephony wiring harness (1) forward into cable duct (13), as shown.
9. Feed antenna line (15) of comfort telephony wiring harness (1) toward rear into cable duct (13), as shown.
10. Route antenna line (15) toward rear through cable duct (16) using pull-through device.
11. Install brown line (BN) of comfort telephony wiring harness at left front seat crossmember ground point (W18).
12. Form loops with excess length of brown line (BN) next to left front seat crossmember ground point (W18) and fix in place with felt tape (17).
13. Close cover (12) of cable duct.
14. Route red/yellow line (RD/YE) forward in cable duct (18).
    Fig 5: Cable Duct, Cover And Comfort Telephony Wiring Harness

    Courtesy of MERCEDES-BENZ USA
15. Route red/yellow line (RD/YE) through opening in firewall to front SAM control unit with fuse and relay module using a pull-through device.
16. Route red/yellow line (RD/YE) along vehicle wiring harness (19) and fix in place using cable ties (20).
17. Disconnect yellow 12-pin connector (22) from front SAM control unit with fuse and relay module (N10/1).
18. Insert red/yellow line (RD/YE) into contact cavity "5" of yellow 12-pin connector (22) (arrow C).
19. Connect yellow 12-pin connector (22) to front SAM control unit with fuse and relay module (N10/1).
    Fig 6: Connecting Yellow 12-Pin Connector To Front SAM Control Unit

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20. Open cover of cable duct (23) in rear and route antenna line (15) into this.
    Fig 7: Cable Duct And Antenna Line

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21. Route antenna line (15), as shown, along vehicle wiring harness (24) o black multifunction antenna coupling (26).
22. Connect black antenna line plug (10) to black multifunction antenna connector (26) and make multifunction antenna electrical connection (A2811x3).
23. Fix antenna line (15) in place using cable ties (25) at vehicle wiring harness (24).
    Fig 8: Antenna Line, Vehicle Wiring Harness And Black Multifunction Antenna Connector

    Courtesy of MERCEDES-BENZ USA
24. Wind the excess length of antenna line (15) in loops, place in cable duct (23) in rear and fix in place using felt tape.
25. Close cable duct (23) in rear.
    Fig 9: Cable Duct And Antenna Line

    Courtesy of MERCEDES-BENZ USA