(Retrofit Electrical Wiring Harness Of Illuminated Door Sill Molding With Mercedes-Benz Lettering - AZ82.20-P-0005-01LF)

Model 222.0 

up to model year 2017 

Connection scheme 

Courtesy of MERCEDES-BENZ USA

1. Check whether the branch-off lines of the blue 2-pin plug (2.6) are longer than the branch-off lines of the black 2-pin plug (2.7).

   If the branch-off lines of the blue 2-pin plug (2.6) are shorter

   ↓

   Remove the blue 2-pin plug (2.6) and the black 2-pin plug (2.7) from the respective branch-off lines and mount the black 2-pin plug (2.7) to the shorter branch-off lines.

   The black 2-pin plugs (2.7) should be installed on the shorter branch-off lines for further installation.

   Observe contact cavity assignment.

2. 1. For previously-removed blue 2-pin plugs (2.6).

      Cut off, insulate and strap down the longer branch-off lines.

   2. If the blue 2-pin plugs (2.6) were not removed.

      Cut off, insulate and strap down the longer branch-off lines with the blue 2-pin plugs (2.6).

      Routing diagram 

      Courtesy of MERCEDES-BENZ USA

      The installation is shown on a left-hand drive vehicle installation on right-hand drive vehicles is the same but mirror inverted.

      Do not damage the electrical wiring harnesses by squeezing or pinching them.

      This can cause a short circuit in the electric circuit.

3. Place illuminated door sill molding wiring harness (2) into front passenger footwell.
4. Mount black 18-pin connector socket (2.3) of wiring harness for illuminated door sill moldings (2) to control unit for illuminated door sill moldings (1).
5. Route brown line (BN) to front passenger footwell frame floor assembly ground point (W85/2) and fix in place with cable ties.

   A maximum of 5 ground connections may be connected, otherwise use other ground point.

6. Connect brown line (BN) to front passenger footwell frame floor assembly ground point (W85/2) .
7. Route branch-off line with the black 2-pin plug (2.7) to installation location of the right front illuminated door sill molding.

   Route branch-off line so that the black 2-pin plug (2.7) can be clipped in at a later stage at the specified cutout.

8. Route left branch-off line (2.1) into driver footwell and fix in place with cable ties.

   Use a pull-through device.

   Courtesy of MERCEDES-BENZ USA

9. Route left branch-off line (2.1) to A-pillar and fix in place using cable ties and felt tape.
10. Route branch-off line with the black 2-pin plug (2.7) to installation location of the left front illuminated door sill molding.

    Route branch-off line so that the black 2-pin plug (2.7) can be clipped in at a later stage at the specified cutout.

11. Route twisted brown line (BN) and brown/red line (BN/RD) to the electrical connector for the potential distributor interior CAN (CAN B), cockpit (X30/34) and fix in place with cable ties.
12. Compare contact cavity assignment of the black 2-pin plug sockets installed on the vehicle on the interior CAN potential distributor electrical connector (CAN B), cockpit (X30/34) with the contact cavity assignment of the black 2-pin connector socket (2.4).

    If the contact cavity assignment of the black 2-pin connector socket (2.4) is different

    ↓

    Adapt contact cavity assignment of the black 2-pin connector socket (2.4).

13. Mount black 2-pin connector socket (2.4) to any free slot on the electrical connection for potential distributor interior CAN (CAN B), cockpit (X30/34).
14. Route red line (RD) with violet fuse holder (2.5) to fuse and relay module on driver's side (K40/6) and fix in place with cable ties.

    Courtesy of MERCEDES-BENZ USA

15. Mount violet fuse holder (2.5) to slot "S2" of fuse and relay module on driver's side (K40/6).

    The slot "S2" on the fuse and relay module on the driver's side (K40/6) is labeled.

16. Insert a fuse with a fuse rating of 5 A into the violet fuse holder (2.5).

    If there is no fuse in the violet fuse holder (2.5).

Courtesy of MERCEDES-BENZ USA