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Home >> Mercedes Benz >> 2021 >> GLA250 Base >> Repair and Diagnosis >> Electrical >> Motors, Switches, Relays >> Electrical System, Equipment & Instruments -- 247 Chassis (2 Of 3) >> Retrofitting & Conversion >> Retrofit Mercedes-Benz Dashcam Wiring Harness >> Retrofit Mercedes-Benz Dashcam Wiring Harness - AZ54.71-P-0001-01MFY

Retrofit Mercedes-Benz Dashcam Wiring Harness - AZ54.71-P-0001-01MFY

Model 247.7 

Except Code 409 (Left and right front multicontour seat) 

Except Code U22 (Lumbar support adjustment) 

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

Number Designation Model 247
BA00.19-P-1019-02E Right front footwell ground point W15 M6 Nm 10
Fig 1: Identifying New Passenger Car Wiring Harness Repair Kit (220 589 04 99 00)
G16050602Courtesy of MERCEDES-BENZ USA
Fig 2: Identifying Wiring Harness Repair Kit, Basic (000 589 13 99 00)
G16050603Courtesy of MERCEDES-BENZ USA
REPAIR MATERIALS

Number Designation Order number
BR00.45-Z-1133-06A Silikonspray Silikon-Fluid, 0.4 l art. no. 0893 221 000 Adolf Wurth GmbH & Co. KG
Reinhold-Wurth-Str. 12-17
74653 Kunzelsau-Gaisbach Germany
Tel. +49 7940 15-0
Fax +49 7940 15-1000
http://www.wuerth.de
BR00.45-Z-1144-02A Adhesive tape roll, non-woven Tesa tape, 50 meters, 50 mm wide A 008 989 50 85 09
G16050604Courtesy of MERCEDES-BENZ USA

Connection scheme 

"Retail" routing diagram 

G16050605Courtesy of MERCEDES-BENZ USA

"Vehicle Preparation Center" routing diagram 

G16050606Courtesy of MERCEDES-BENZ USA

IMPORTANT

The following work procedure is described using the "Retail" routing diagram.

  1. Route dashcam wiring harness (8) from front dashcam mount (8.15) under roof lining to the right to the A-pillar.
    G16050607Courtesy of MERCEDES-BENZ USA
  2. Use felt adhesive tape to fasten ferrite cores (8.2) of dashcam wiring harness (8) to roof lining.
    G16050608Courtesy of MERCEDES-BENZ USA
  3. Route the three individual lines (8.3, GN, RD) of the dashcam wiring harness (8) above the window airbag (30) and into the footwell.

    IMPORTANT

    Route the three individual lines (8.3, GN, RD) of the dashcam wiring harness (8) through the cable duct behind the crossmember for the instrument panel.

    IMPORTANT

    Use a pull-through device.

    G16050609Courtesy of MERCEDES-BENZ USA
  4. Route ground line (8.3) of dashcam wiring harness (8) to front right footwell ground point (W15) and connect.

    TORQUE SPECIFICATION

  5. Route the two individual lines (GN, RD) of the dashcam wiring harness (8) to the vehicle interior fuse and relay module (F152/4) at the right.
    G16050610Courtesy of MERCEDES-BENZ USA
  6. Remove electrical fuse (29) from slot 124 (arrow) of vehicle interior fuse and relay module (F152/4).

    IMPORTANT

    The electrical fuse (29) is reused.

    The fuse rating of the electrical fuse (29) is 20 A.

    G16050611Courtesy of MERCEDES-BENZ USA
  7. Release fuse holder (30) of vehicle interior fuse and relay module (F152/4) (arrows) and remove.
    G16050612Courtesy of MERCEDES-BENZ USA
  8. Remove red/yellow line (20) from contact cavity "5" (arrow) of fuse holder (30).

    IMPORTANT

    Take appropriate tool from the SPECIAL TOOL basic wiring harness repair kit or the SPECIAL TOOL supplementary passenger car wiring harness repair kit.

    G16050613Courtesy of MERCEDES-BENZ USA
  9. Install blue/white line (BU/WH) of dashcam wiring harness (8) into fuse holder (10).
    G16050614Courtesy of MERCEDES-BENZ USA
  10. Install removed red/yellow line (20) into free contact cavity of fuse holder (10).
  11. Install green line (GN) into contact cavity "5" (arrow) of fuse holder (30).
    G16050615Courtesy of MERCEDES-BENZ USA
  12. Install electrical fuse (11) included in parts kit into fuse holder (10).

    IMPORTANT

    The fuse rating of the electrical fuse (11) is 25 A.

    G16050616Courtesy of MERCEDES-BENZ USA
  13. On vehicle except code 457 (Comfort suspension with adjustable damping), except code 459 (Steel suspension with adjustable damping), except code U67 (230 V socket in rear), except code U80 (115 V socket)

    Install fuse holder (26) in empty space "M3D" (arrow F) in vehicle interior fuse and relay module (F152/4).

  14. Install red line (RD) of dashcam wiring harness (8) into contact cavity "4" (arrow G) of fuse holder (26).
  15. Lock fuse holder (30) on vehicle interior fuse and relay module (F152/4) again.

    Shown on vehicle without code 457 (Comfort suspension with adjustable damping), without code 459 (Steel suspension with adjustable damping), without code U67 (230 V socket in rear), without code U80 (115 V socket) 

    G16050617Courtesy of MERCEDES-BENZ USA
  16. Fasten fuse holder (10) using a cable tie.
  17. Fasten red line (RD) of dashcam wiring harness (8) using a cable tie.
    G16050618Courtesy of MERCEDES-BENZ USA
  18. Install electrical fuse (29) into slot 124 (arrow A) of vehicle interior fuse and relay module (F152/4).

    IMPORTANT

    The electrical fuse (29) was removed beforehand.

    The fuse rating of the electrical fuse (29) is 20 A.

  19. Install electrical fuse (12) included in parts kit into slot 116 (arrow B) of vehicle interior fuse and relay module (F152/4).

    IMPORTANT

    The fuse rating of the electrical fuse (12) is 5 A.

    G16050619Courtesy of MERCEDES-BENZ USA

    Shown with removed roof lining 

  20. Route branch-off line for rear dashcam of dashcam wiring harness (8) on roof lining towards rear up to center of roof lining.

    IMPORTANT

    Route branch-off line for rear dashcam behind mounts for front and rear grab handles (arrows).

  21. Strap down excess lengths of dashcam wiring harness (8) in area of their routing.
  22. Fasten dashcam wiring harness (8) on roof lining using felt adhesive tape.
    G16050620Courtesy of MERCEDES-BENZ USA
  23. Remove cable duct (33) from liftgate and from rear roof frame.
    G16050621Courtesy of MERCEDES-BENZ USA
  24. Route dashcam wiring harness (8) through the opening in the rear roof frame up to the opening for the cable duct (33) on the rear roof frame.
    G16050622Courtesy of MERCEDES-BENZ USA
  25. Route dashcam wiring harness (8) through cable duct (33) into liftgate.
  26. Route dashcam wiring harness (8) by dimension (a) beyond center of liftgate (b) to the left.

    IMPORTANT

    Dimensions: 

    a = 170 mm

    Apply silicon spray to inside of cable duct (33) before routing it.

    IMPORTANT

    Use a pull-through device.

  27. Fix dashcam wiring harness (8) in place using cable ties (arrows).
  28. Attach cable duct (33).
    G16050623Courtesy of MERCEDES-BENZ USA