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Home >> Mercedes Benz >> 2021 >> GLB250 4Matic >> Repair and Diagnosis >> Electrical >> Motors, Switches, Relays >> Electrical System - Body - 247 Chassis (2 Of 3) >> Retrofitting & Conversion >> Retrofit Electrical Wiring Harness Of Illuminated Door Sill Molding With Mercedes-Benz Lettering - AZ82.20-P-0005-01MFB

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

Model 247.0/6 

Topical note  Notes on the use of paint scraping nuts on ground connections   AH00.19-P-1000-20A
Topical note  Information on preventing damage to electronic components due to electrostatic discharge   AH54.00-P-0001-01A
Topical note  Notes on retrofitting electrical/optical lines   AH82.00-P-0000-01A
GROUND POINTS

Number Designation Model 247
BA00.19-P-1019-02E Right front footwell ground point W15 M6 Nm 10
G14690437Courtesy of MERCEDES-BENZ USA
G14690438Courtesy of MERCEDES-BENZ USA

IMPORTANT The following work procedure is shown on a left-hand drive vehicle, on right-hand drive vehicles installation is identical but mirror inverted.

  1. Place electrical wiring harness for illuminated door sill molding (1) into front passenger footwell.
  2. Route black 18-pin contact socket (1.3) to transmission tunnel.

    IMPORTANT The black 18-pin contact socket (1.3) will be connected to the illuminated door sill moldings control unit at a later stage.

  3. Route brown line (BN) to front right footwell ground point (W15).
  4. Connect brown line (BN) at front right footwell ground point (W15). TORQUE SPECIFICATION
  5. Route red line (RD) to vehicle interior fuse and relay module (F152/4).
  6. Route twisted brown line (BN) and brown/red line (BN/RD) to central control unit (N10).
    G14690439Courtesy of MERCEDES-BENZ USA
  7. Route right branch-off line (1.6) to right longitudinal member.

    IMPORTANT Route right branch-off line (1.6) so that the black 2-pin plug (1.2) can be connected to the front right illuminated door sill molding at a later stage.

    Contact cavity assignment: 

    Contact cavity 1 = Brown line

    Contact cavity 2 = Yellow line

  8. Route left branch-off line (1.5) into driver footwell via the transmission tunnel.
    G14690439Courtesy of MERCEDES-BENZ USA
  9. Install red line (RD) into slot "5" (arrow) of fuse holder "M4A" of vehicle interior fuse and relay module (F152/4).

    IMPORTANT Slot "5" (arrow) and fuse holder "M4A" of the vehicle interior fuse and relay module (F152/4) are labeled.

  10. Remove white 20-pin contact socket (8) from central control unit (N10).
  11. Remove black 20-pin connector socket insert (8.1) from white 20-pin contact socket (8).
    G14690441Courtesy of MERCEDES-BENZ USA
  12. Install twisted brown line (BN) and brown/red line (BN/RD) into black 20-pin connector socket insert (8.1).

    IMPORTANTContact cavity assignment: 

    Contact cavity 8 = brown line (BN)

    Contact cavity 18 = brown/red line (BN/RD)

  13. Install black 20-pin connector socket insert (8.1) into white 20-pin contact socket (8).
  14. Attach white 20-pin contact socket (8) to central control unit (N10).
    G14690441Courtesy of MERCEDES-BENZ USA
  15. Insert a fuse with a fuse rating of 5 A into slot (arrow A) of vehicle interior fuse and relay module (F152/4).
    G14690443Courtesy of MERCEDES-BENZ USA
  16. Route left branch-off line (1.5) to left longitudinal member.

    IMPORTANT Route left branch-off line (1.5) so that the black 2-pin plug (1.1) can be connected to the front left illuminated door sill molding at a later stage.

    Contact cavity assignment: 

    Contact cavity 1 = Brown line

    Contact cavity 2 = Green line

  17. Fix wiring harness for illuminated door sill molding in place over entire length using cable ties.
    G14690444Courtesy of MERCEDES-BENZ USA