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Home >> Mercedes Benz >> 2019 >> GLC300 Base >> Repair and Diagnosis >> General Information >> OEM General Information >> Overall Vehicle - 253 Chassis - 2 Of 6 >> Testing & Repair >> Repairing Wiring Harness Using Solder Connectors - AR00.19-P-0100-09A

Repairing Wiring Harness Using Solder Connectors - AR00.19-P-0100-09A

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Fig 1: Identifying New Passenger Vehicle Wiring Harness Repair Kit (220 589 04 99 00)
G12618299Courtesy of MERCEDES-BENZ USA
Fig 2: Identifying Wiring Harness Repair Kit, Basic (000 589 13 99 00)
G12618300Courtesy of MERCEDES-BENZ USA
Fig 3: Identifying Welding Bead Catcher (129 589 01 98 00)
G12619001Courtesy of MERCEDES-BENZ USA
Fig 4: Identifying Wire Stripper (220 589 01 99 40)
G12618937Courtesy of MERCEDES-BENZ USA
Fig 5: Identifying Reflector (220 589 01 99 41)
G12618303Courtesy of MERCEDES-BENZ USA
Fig 6: Identifying Adapter (220 589 01 99 42)
G07470445Courtesy of MERCEDES-BENZ USA
  1. Expose damaged line or connector/coupling and separate.

    IMPORTANT Separate line in wiring harness offset approx. 45 mm (B).

    G12923549Courtesy of MERCEDES-BENZ USA
  2. Cut new section of cable to match old cable.

    IMPORTANT When cutting the line, add an allowance of approx. 50 mm (C) for loop formation (strain-relief).

  3. Remove approx. 15 mm (D) of insulation at line ends.
  4. Select solder connector according to table below.
    G12923550Courtesy of MERCEDES-BENZ USA
    Selection table for solder connector
    Entire copper cross section Overall diameter with insulation Length stripped of insulation Color code
    0.7 to 2.4 mm2 3.3 mm 15 mm green
    2.0 to 4.0 mm2 4.5 mm 15 mm red
    3.5 to 8.0 mm2 7.0 mm 15 mm blue
    7.5 to 12 mm2 9.0 mm 15 mm Yellow
  5. Insert the cables into the corresponding solder connections (Z) according to the total cable cross-section.

    IMPORTANT maximum of seven individual cables may be inserted into each solder connection (Z).

  6. Ensure that solder connection (Z) is fully rotated onto cables.

    IMPORTANT Approx. 5 mm (A) of the stripped line ends should be visible.

    G12923551Courtesy of MERCEDES-BENZ USA
  7. Heat solder connector with hot air gun (approx. 400°C) on the Hot air blower.

    IMPORTANT Start at tapered end until soldering ring dissolves and covering has completely wrapped itself around the lines.

    G10035753Courtesy of MERCEDES-BENZ USA
  8. Check soldered point.

    IMPORTANT The soldering ring (1) of the solder connection (Z) must no longer be visible. The jacketing (2) must make contact with the lines as shown.

    G12923553Courtesy of MERCEDES-BENZ USA
  9. Position solder connector on line and attach heat-shrinkable tube or corrugated hose in repair area or wrap with fabric tape.

    IMPORTANT solder connections must not be positioned directly one above the other.

    Primarily fabric tape is used for the visual adaptation of the repair point and to protect against chafing. In vehicle areas with higher loads (e.g. engine compartment), fabric tape should only be used in combination with other (watertight) safety measures.

G12923554Courtesy of MERCEDES-BENZ USA