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Home >> Mercedes Benz >> 1996 >> E320 >> Repair and Diagnosis >> Brakes >> Mechanical - Hydraulic >> Overall Vehicle -- Testing & Repair -- 210 Chassis >> Testing & Repair >> Remove contacts from micro quadlock system coupling - AR00.19-P-0120-04A

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)
G04605335Courtesy of MERCEDES-BENZ OF NORTH AMERICA.
Fig 2: Identifying Wiring Harness Repair Kit, Basic (000 589 13 99 00)
G04605336Courtesy of MERCEDES-BENZ OF NORTH AMERICA.
Fig 3: Identifying Wiring Harness Repair Kit (220 589 02 99 00)
G04605337Courtesy of MERCEDES-BENZ OF NORTH AMERICA.
Fig 4: Identifying Blade Holder With Clamping Pliers (220 589 01 99 50)
G04605338Courtesy of MERCEDES-BENZ OF NORTH AMERICA.
Fig 5: Identifying MQS Blade (220 589 01 99 60)
G04605339Courtesy of MERCEDES-BENZ OF NORTH AMERICA.

Secondary unlocking for version with retaining cap (MQS) 

  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.

Shown on 3/3-pin MQS coupling 

Fig 6: Retaining Cap From Coupling Housing - Shown On 3/3-Pin MQS Coupling
G04605340Courtesy of MERCEDES-BENZ OF NORTH AMERICA.

Secondary unlocking for version with retaining housing (MQS) 

  1. Lift locking catch (2) of retaining cap (4) using a suitable tool (1).
  2. Pull coupling housing (3) from retaining cap (4) in direction shown by arrow.

Shown on a 3/3-pin MQS/MCP coupling 

Fig 7: Pulling Coupling Housing From Retaining Cap - Shown On A 3/3-Pin MQS/MCP Coupling
G04605341Courtesy of MERCEDES-BENZ OF NORTH AMERICA.

Secondary unlocking for version with cap (MQS) 

  1. Detach cover (1) from cap (2) in direction of arrow over the catch mechanism.
  2. Remove connector housing (3) from cap (2) in direction of arrow.

Shown on 14-pin MQS coupling with a connector housing 

Fig 8: Connector Housing From Cap - Shown On 14-Pin MQS Coupling With A Connector Housing
G04605342Courtesy of MERCEDES-BENZ OF NORTH AMERICA.

Secondary unlocking for version with 2nd contact retainer (MQS) 

  1. Using a suitable tool, open the contact retainer (1).
  2. Pry up the contact retainer (1) in direction shown by arrow.

Shown on 6-pin MQS coupling 

Fig 9: Prying Up Contact Retainer - Shown On 6-Pin MQS Coupling
G04605343Courtesy of MERCEDES-BENZ OF NORTH AMERICA.

Secondary unlocking for version with lock tab (MQS) 

  1. Push suitable tool underneath locking catches (1).
  2. Pry up the lock tabs (1) in direction shown by arrow.

Shown on 8-pin MQS coupling 

Fig 10: Prying Up Lock Tabs - Shown On 8-Pin MQS Coupling
G04605344Courtesy of MERCEDES-BENZ OF NORTH AMERICA.

Secondary unlocking for version with retaining housing (MQS) 

  1. Using a suitable tool, pry up the lock tab on the retaining cap (5).
  2. Pull coupling housing (6) from retaining cap (5) in direction shown by arrow.

Shown on 12-pin MQS coupling 

Fig 11: Pulling Coupling Housing From Retaining Cap - Shown On 12-Pin MQS Coupling
G04605345Courtesy of MERCEDES-BENZ OF NORTH AMERICA.

Unpin female contacts from coupling (MQS) 

  1. Mount blade holder with clamping pliers SPECIAL TOOL and MQS blade SPECIAL TOOL from above through the opening in the exposed connector housing (1) at the spring of the female contact (2).
  2. 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.

Illustrated on an 18-pin MQS coupling with a connector housing (circular conductor) 

Fig 12: Pinning/Unpining Female Contacts From Coupling (18-Pin MQS Coupling)
G04605346Courtesy of MERCEDES-BENZ OF NORTH AMERICA.

Illustrated on a 2-pin MQS coupling (circular conductor) 

Fig 13: Pinning/Unpining Female Contacts From Coupling (2-pin MQS Coupling)
G04605347Courtesy of MERCEDES-BENZ OF NORTH AMERICA.

Unpin female contacts from coupling with 2nd contact retainer (MQS) 

  1. Mount blade holder with clamping pliers SPECIAL TOOL and MQS blade SPECIAL TOOL from above through the opening (3) of the connector housing (1), press down spring shackle of female contact (2), and pull female contact (2) out of contact cavity of connector housing (1) up to the stop.
  2. Mount blade holder with clamping pliers SPECIAL TOOL and MQS blade SPECIAL TOOL from above through the opening (4), press down spring shackle of female contact (2), and pull female contact (2) out of contact cavity of connector housing (1).

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

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