Separate B-pillar - AR63.20-P-1350-05CW

The following operation steps are shown on model 204.0.

1. Scribe separation lines on outer B-pillar (1) (areas A, B, C, D, E, F and G).

   On vehicles with panorama roof, separation line and cut are not required in area A. Completely cut separation lines in areas B and C to roof frame connection and cut out resistance spot welds at roof frame connection.

   Transfer separation lines from new part (areas B, C, D and E).

   Fig 1: Identifying Separation Lines On Outer B-Pillar (Areas A, B, C, D, E, F And G)

   Courtesy of MERCEDES-BENZ USA

   Dimensions: 

   When removing outer B-pillar (1) without side longitudinal member (3), scribe only cutting line in areas A, B, C, D and E.

2. Cut outer B-pillar (1) at separation point (areas A, B, C, D, E, F and G).

   When removing outer B-pillar (1) without side longitudinal member (3), cut only separation points in areas A, B, C, D and E.

   Fig 2: Identifying Spot Welds On Outer B-Pillar (Areas H, I, J, K, L, M And N)

   Courtesy of MERCEDES-BENZ USA
3. Expose spot welds on outer B-pillar (1) (areas H, I, J, K, L, M and N).

   When removing outer B-pillar (1) without side longitudinal member (3), expose only (areas H, I and J)

4. Cut out spot welds (areas H, I, J, K, L, M and N).

   When removing outer B-pillar (1) without side longitudinal member (3) cut out only (areas H, I and J).

5. Heat outer B-pillar (1) in crosshatched areas.
6. Remove damaged outer B-pillar (1).
   Fig 3: Identifying Inner B-Pillar Welding Areas & Separation Lines

   Courtesy of MERCEDES-BENZ USA
7. Cut out spot welds (areas O, P, Q, R, S, T, W, X and Y).

   When removing inner B-pillar (2) without side longitudinal member (3), cut out only spot welds in areas O, P, Q, R, S and T.

   When removing inner B-pillar (2) with side longitudinal member (3) cut out only spot welds in areas O, P, Q, W, X and Y.

8. Scribe separation line on Y-embossment at side longitudinal member (3) (arrows) (areas U and V).
9. Cut side longitudinal member (3) at separation point (areas U and V).
10. Heat inner B-pillar (2) in crosshatched areas.

    Heat only when removing inner B-pillar (2) without side longitudinal member (area XX).

11. Remove damaged inner B-pillar (2).
    Fig 4: Identifying Inner B-Pillar Connection Surfaces

    Courtesy of MERCEDES-BENZ USA
12. Sand down connection surfaces on body to bare metal in crosshatched areas.

    When removing inner B-pillar (2) without side longitudinal member (3) observe pretreatment of bonding surfaces in areas Z and AA.

    When removing inner B-pillar (2) with side longitudinal member (3) observe pretreatment of bonding surfaces in areas AB, AC and AD.

    Grind spot weld flanges down to bare metal on both sides.

13. Remove shavings.
14. Coat insides of spot weld flanges with zinc dust paint.

    To prevent adhesion problems, do not coat bonding surfaces with zinc dust paint.