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)

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

Fig 3: Identifying Wiring Harness Repair Kit (220 589 02 99 00)

Fig 4: Identifying Blade Holder With Clamping Pliers (220 589 01 99 50)

Fig 5: Identifying MQS Blade (220 589 01 99 60)

Secondary unlocking for version with retaining cap (MQS)

Guide suitable tool (1) all the way into groove (4) from the side.
Remove retaining cap (2) from coupling housing (3) in direction of arrow.

Shown on 3/3-pin MQS coupling

Fig 6: Identifying 3/3-Pin MQS Coupling

Secondary unlocking for version with retaining housing (MQS)

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

Shown on a 3/3-pin MQS/MCP coupling

Fig 7: Identifying Secondary Unlocking For Version With Retaining Housing (MQS)

Secondary unlocking for version with cap (MQS)

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

Shown on 14-pin MQS coupling with a connector housing

Fig 8: Identifying 14-Pin MQS Coupling With Connector Housing

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

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

Shown on 6-pin MQS coupling

Fig 9: Prying Up Contact Retainer

Secondary unlocking for version with lock tab (MQS)

Push suitable tool underneath locking catches (1).
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

Secondary unlocking for version with retaining housing (MQS)

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

Shown on 12-pin MQS coupling

Fig 11: Identifying Retaining Cap And Coupling Housing - Shown On 12-Pin MQS Coupling

Unpin female contacts from coupling (MQS)

Mount blade holder with clamping pliers and MQS blade from above through the opening in the exposed connector housing (1) at the spring of the female contact (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: Pressing Spring Shackle Of Female Contact Downward And Pushing Female Contact Out Of Contact Cavity Of Connector Housing - Illustrated On An 18-Pin MQS Coupling With A Connector Housing (Circular Conductor)

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

Fig 13: Locating Female Contacts From Coupling With 2nd Contact Retainer (MQS) - Illustrated On A 2-Pin MQS Coupling (Circular Conductor)

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

Mount blade holder with clamping pliers and MQS blade 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.
Mount blade holder with clamping pliers and MQS blade 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).

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