B-Pillar Install And Weld In - Ar63.20-S-1350-06E

Model 447, 448 

Fig 1: Identifying Side Portal Frame (210 589 17 23 00)

Courtesy of MERCEDES-BENZ USA

Courtesy of MERCEDES-BENZ USA

1. Install B-pillar outer section (1) and inner B-pillar (2), fit and fix in place with the side portal frame and the straightening tool.
2. Tack inner B-pillar (2) (areas A and B).
3. Inner B-pillar (2) (area C).
4. Weld in inner B-pillar (2) with (areas D and E).
5. Remove B-pillar outer section (1) and the straightening tool.
6. Bend over sheet metal lug (area F).
7. Weld in inner B-pillar (2) with (area F).
8. Grind shielding gas spot welds down flat (area C).

   Courtesy of MERCEDES-BENZ USA

9. Inner B-pillar (2) (areas G to I).
10. Inner B-pillar (2) (area K).
11. Inner B-pillar (2) (area J).

    Inert gas weld in intervals and allow to cool down in between. Reduces heat distortion.

12. Grind shielding gas weld down flat (area J).
13. Clean weld joints.
14. Remove shavings and drill chips.
15. Apply zinc dust paint to weld joints.
16. Apply sealant to bottom e°e of soundproofing (3) (area Q).

    Only when replacing right side of vehicle.

17. Install soundproofing (3) on inner B-pillar (2).

    Only when replacing right side of vehicle.

18. Apply sealant to top e°e of soundproofing (3) (area Q).

    Only when replacing right side of vehicle.

    Courtesy of MERCEDES-BENZ USA

19. Install B-pillar outer section (1) and fit.
20. Model 447, 448.8 with code CN1 (Exterior rocker panel)

    Install mounting rail (4) on longitudinal member panel.

    For this purpose fasten mounting rail (4) with bolts (5).

21. Fix B-pillar outer section (1) in place with the side portal frame and straightening tool.
22. Model 447, 448.8 with code CN1 (Exterior rocker panel)

    Tack weld B-pillar outer section (1) (area S).

23. Model 447, 448.8 with code CN1 (Exterior rocker panel)

    Remove mounting rail (4) on longitudinal member panel.

    Courtesy of MERCEDES-BENZ USA

    Courtesy of MERCEDES-BENZ USA

24. B-pillar outer section (1) (areas L to N).
25. B-pillar outer section (1) (areas O and P).

    Inert gas weld in intervals and allow to cool down in between. Reduces heat distortion.

26. Grind shielding gas welds down flat (areas O and P).
27. Clean weld joints.
28. Restore surfaces on B-pillar outer section (1) and smooth.
29. Remove shavings and drill chips.

    Courtesy of MERCEDES-BENZ USA

    Courtesy of MERCEDES-BENZ USA

    Shown on MODEL 447.811 

30. Model 447, 448.8 with code CN1 (Exterior rocker panel)

    Position mounting rail (4) and align.

31. Model 447, 448.8 with code CN1 (Exterior rocker panel)

    Transfer holes of mounting rail (4) to body.

    Then remove mounting rail (4).

32. Model 447, 448.8 with code CN1 (Exterior rocker panel)

    Drill and center punch holes (arrows).

33. Model 447, 448.8 with code CN1 (Exterior rocker panel)

Deburr holes and remove drill chips.