Remove contacts from micro quadlock system coupling - AR00.19-P-0120-04A

Fig 1: Identifying New Passenger Vehicle Wiring Harness Repair Kit (220 589 04 99 00)

Courtesy of MERCEDES-BENZ USA

Fig 2: Identifying Wiring Harness Repair Kit, Basic (000 589 13 99 00)

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Fig 3: Identifying Blade Holder With Clamping Pliers (220 589 01 99 50)

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Fig 4: Identifying MQS Blade (220 589 01 99 60)

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Unfasten secondary release on version with retaining cap 

1. Guide suitable tool (1) all the way into groove (4) from the side.
2. Remove retaining cap (2) from coupling housing (3) in direction of arrow.
   Fig 5: Removing Retaining Cap From Coupling Housing

   Courtesy of MERCEDES-BENZ USA
3. Lift locking catch (2) of retaining cap (4) using a suitable tool (1).
4. Pull coupling housing (3) from retaining cap (4) in direction shown by arrow.
   Fig 6: Pulling Coupling Housing From Retaining Cap

   Courtesy of MERCEDES-BENZ USA

   Unfasten secondary release on version with cap 

5. Detach cover (1) from cap (2) in direction of arrow over the catch mechanism.
6. Remove connector housing (3) from cap (2) in direction of arrow.
   Fig 7: Removing Connector Housing From Cap

   Courtesy of MERCEDES-BENZ USA

   Unfasten secondary release on version with 2nd contact retainer 

7. Using a suitable tool, open the contact retainer (1).
8. Pry up the contact retainer (1) in direction shown by arrow.
   Fig 8: Prying Up Contact Retainer

   Courtesy of MERCEDES-BENZ USA

   Unfasten secondary release on version with lock tab 

9. Push suitable tool underneath locking catches (1).
10. Pry up the lock tabs (1) in direction shown by arrow.
    Fig 9: Prying Up Lock Tabs

    Courtesy of MERCEDES-BENZ USA

    Unfasten secondary release on version with retainer housing 

11. Using a suitable tool, pry up the locking tab on the retaining cap (5).
12. Pull coupling housing (6) from retaining cap (5) in direction of arrow.
    Fig 10: Pulling Coupling Housing From Retaining Cap

    Courtesy of MERCEDES-BENZ USA

    Unpin female contacts from coupling 

13. Attach blade holder with clamping pliers and MQS blade from above through opening in exposed connector housing (1) at spring shackle of female contact (2).
14. Press the spring shackle of the female contact (2) downward and push the female contact (2) out of the contact cavity of the connector housing (1). Tug the corresponding cable at the same time to assist the unpinning procedure.
    Fig 11: Pushing Female Contact Out Of Connector Housing

    Courtesy of MERCEDES-BENZ USA

    Unpin female contacts from coupling with 2nd contact retainer 

15. Attach blade holder with clamping pliers and MQS blade from above through opening (3) of connector housing (1), press down spring shackle of female contact (2), and pull female contact (2) out of contact cavity of connector housing (1) to end stop.
16. Attach blade holder with clamping pliers and MQS blade from above through opening (4), press down spring shackle of female contact (2), and pull female contact (2) out of contact cavity of connector housing (1).
    Fig 12: Pulling Female Contact Out Of Contact Cavity Of Connector Housing

    Courtesy of MERCEDES-BENZ USA

Tug the corresponding cable at the same time to help unpinning procedure.