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Home >> Mercedes Benz >> 2021 >> GLA250 4Matic >> Repair and Diagnosis >> Accessories & Equipment >> Headlights >> Electrical System - Body -- 247 Chassis (2 Of 3) >> Retrofitting & Conversion >> Retrofit Illuminated Door Sill Molding Wiring Harness - AZ82.20-P-0001-04MFH

Retrofit Illuminated Door Sill Molding Wiring Harness - AZ82.20-P-0001-04MFH

Model 247.7 

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
G16065014Courtesy of MERCEDES-BENZ USA
G16065015Courtesy 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) is connected to the control unit (4) at a later stage.

  3. Route brown line (BN) to front right footwell ground point (W15).
  4. Connect brown line (BN) to 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 signal acquisition and actuation module (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 signal acquisition and actuation module (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).

    IMPORTANT

    Contact 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 signal acquisition and actuation module (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