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Home >> Mercedes Benz >> 2021 >> GLC300 Base >> Repair and Diagnosis >> Accessories & Equipment >> Headlights >> Electrical System - Body - 253 Chassis 5 Of 8 >> Retrofitting & Conversion >> Retrofit SD Card Slot Power Supply Wiring Harness - AN82.85-P-0010-04LWI

Retrofit SD Card Slot Power Supply Wiring Harness - AN82.85-P-0010-04LWI

Model 253.3 

GROUND POINTS

Number Designation Model 253 (except 253.99)
BA00.19-P-1021-01E Additional battery ground point W15/17 Nm 10
FUSE AND RELAY BOX

Number Designation Model 253
BA54.15-P-1004-01K Nut, positive line to vehicle interior prefuse box M6 Nm 8
M8 Nm 16
Fig 1: Identifying New Passenger Car Wiring Harness Repair Kit (220 589 04 99 00)
G13743246Courtesy of MERCEDES-BENZ USA
Fig 2: Identifying Wiring Harness Repair Kit, Basic (000 589 13 99 00)
G12618300Courtesy of MERCEDES-BENZ USA

Connection scheme 

G14470433Courtesy of MERCEDES-BENZ USA

Routing diagram, shown on left-hand drive vehicle 

G14470434Courtesy of MERCEDES-BENZ USA
  1. Remove red line (6) and black line (7) from fuse box on A-pillar at right (F1/3).
  2. Remove black fuse holder (14) together with other fuse holders from fuse box on A-pillar at right (F1/3).
    G12824602Courtesy of MERCEDES-BENZ USA
  3. Remove blue 6-pin connector (8) from black fuse holder (14).

    IMPORTANT The slot for the blue 6-pin connector (8) in the black fuse holder (14) is marked with MF2  .

    G12824562Courtesy of MERCEDES-BENZ USA
  4. Install contact spring (2) of red line (RD) of the fabricated wiring harness (1), into contact cavity 5 of the blue, 6-pin connector (8).
  5. Connect round cable lug (3) of brown line (BN) to additional battery ground point (W15/17) in front passenger footwell TORQUE SPECIFICATION .
    G12824604Courtesy of MERCEDES-BENZ USA
  6. Install blue 6-pin connector (8) into black fuse holder (14).

    IMPORTANT The slot for the blue 6-pin connector (8) in the black fuse holder (14) is marked with MF2  .

  7. Install black fuse holder (14) together with other fuse holders into fuse box on A-pillar at right (F1/3).

    NOTES Ensure correct seating and proper engagement of fuse holders in right A-pillar fuse box (F1/3).

    Otherwise, the fuses may work themselves loose and connected systems may then malfunction.

  8. Connect red line (6) and black line (7) to right A-pillar fuse box (F1/3) TORQUE SPECIFICATION .
    G12824605Courtesy of MERCEDES-BENZ USA
  9. Route wiring harness (1) along the vehicle wiring harnesses below the device installation frame of the audio component up to the center console.

    NOTES Ensure wiring harness is routed correctly and free of chafing points.

    Otherwise, the wiring harness (1) may be damaged.

  10. Fasten wiring harness (1) using cable ties (arrows) onto vehicle wiring harness and fix in place using felt tape (f) in area of transmission tunnel.
    G12824606Courtesy of MERCEDES-BENZ USA

    IMPORTANT The following operation steps 11 to 15 are only valid for model 253.3 with blue connector on multimedia connection unit.

  11. Remove black 8-pin connector (9) from blue carrier element (10).
  12. Connect the brown line (BN) in the black 8-pin connector (9) to the SPECIAL TOOL wiring harness repair kit or the SPECIAL TOOL wiring harness repair kit supplement for passenger cars.

    IMPORTANT Insulate removed brown line (BN) and strap down.

  13. Install contact spring (5) of brown line (BN) for prepared wiring harness (1) into contact cavity 6 of black 8-pin connector (9).
  14. Install contact spring (4) of red line (RD) for prepared wiring harness (1) into contact cavity 5 of black 8-pin connector (9).
  15. Install black 8-pin connector (9) into blue carrier element (10) again.

    IMPORTANT The blue carrier element (10) is connected to the multimedia connection unit at a later point.

    G12824607Courtesy of MERCEDES-BENZ USA

    IMPORTANT The next steps 16 and 17 only apply for model 253.3 with white 6-pin coupling to multimedia connection unit.

  16. Install contact spring of brown line (BN) into white 6-pin connector (20).

    IMPORTANT The contact cavities of white 6-pin connector (20) are not labeled, install brown line (BN) as shown.

  17. Install contact spring of red line (rt) into white 6-pin connector (20).

    IMPORTANT The contact cavities of the white 6-pin connector (20) are not labeled, install red line (RD) as shown. The white 6-pin connector (20) is connected to the multimedia connection unit at a later point.

    G12824608Courtesy of MERCEDES-BENZ USA