Install and weld in B-pillar - AR63.20-P-1350-06EW

MODEL 212 

Fig 1: Inner B-Pillar Rivet Holes (Areas A And B)

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1. Set up side portal frame.

   Observe setup plans.

2. Install inner B-pillar (2) and side longitudinal member (3), fit and fix in place with portal bracket.

   Use spacer panel from portal straightening set on inner B-pillar (2). See setup plans.

3. Drill Ø 6.7 mm rivet holes in inner B-pillar (2) with BTR-Usibor drill bit (areas A and B).

   Rivet holes in area B are only required when installing inner B-pillar (2) without side longitudinal member (3).

4. Countersink rivet holes on inner B-pillar (2) (arrows).

   Only when installing inner B-pillar (2) without side longitudinal member (3).

The following operation steps 5, 6, 7 and 8 are only performed when installing the inner B-pillar without side longitudinal member.

Fig 2: Inner B-Pillar Rivet Holes (Areas B1 and B2)
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5. Scribe rivet holes on inner B-pillar (areas B₁ and B₂ ).
6. Center punch rivet holes on inner B-pillar (areas B₁ and B₂ ).
7. Drill Ø 6.7 mm rivet holes in inner B-pillar with BTR-Usibor drill bit (areas B₁ and B₂ ).
8. Countersink rivet holes on inner B-pillar (areas B₁ and B₂ ).
9. Remove portal bracket, inner B-pillar and side longitudinal member.

   When installing inner B-pillar without longitudinal member, remove only inner B-pillar.

10. Deburr rivet holes on both sides.
Fig 3: Applying 2-Component Adhesive In Cross-Hatched Areas
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11. Apply 2-component adhesive in cross-hatched areas.

    When installing inner B-pillar with side longitudinal member, additionally apply 2-component adhesive in area B₃ .

    Observe pretreatment of bonding surfaces. Refer to the manufacturer's information for the curing and working times of 2-component adhesive.

Fig 4: Installing Inner B-Pillar With Side Longitudinal Member
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12. Install inner B-pillar (2) with side longitudinal member, fit and fix in place with portal bracket.

    Use spacer panel from portal straightening set on inner B-pillar (2). See setup plans.

13. Rivet inner B-pillar (2) with Ø 6.5 X 12.5 steel/steel blind rivets (area H).
14. Rivet inner B-pillar (2) with Ø 6.4 X 14 Polygrip countersunk-head rivets (areas I and J).

Only when installing inner B-pillar (2) without side longitudinal member.

15. Rivet inner B-pillar (2) with Ø 6.4 X 14.5 steel/steel bind rivet (area K).

Only when installing inner B-pillar (2) without side longitudinal member.

16. Remove portal bracket.
Fig 5:
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17. Inner B-pillar (2) with side longitudinal member (3) (areas C, C₁ , G, G₁ and E).

    The new resistance must be positioned at exactly the same position as the previous resistance spot welds, because the area below was glued previously (areas C₁ and G₁ ).

    Otherwise the required minimum strength of the weld joint is not ensured.

    Resistance spot weld areas C, G and E only when installing inner B-pillar (2) with side longitudinal member (3).

18. Inner B-pillar (2) with side longitudinal member (3) _{SG ««««} (areas D and F).

    Insert gas weld only when installing inner B-pillar (2) with side longitudinal member (3) (areas D and F).

Fig 6: Outer B-Pillar Rivet Holes Area
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19. Install outer B-pillar (1), fit and fix in place with portal bracket.
20. Drill rivet holes on outer B-pillar (1) (area O).
21. Remove portal bracket and outer B-pillar (1).
22. Deburr rivet holes on outer B-pillar (1) on both sides.
Fig 7: Applying 2-Component Adhesive In Cross-Hatched Areas
Courtesy of MERCEDES-BENZ USA
23. Apply 2-component adhesive in cross-hatched areas.

    Observe pretreatment of bonding surfaces. Refer to the manufacturer's information for the curing and working times of 2-component adhesive.

24. Install outer B-pillar (1), fit and fix in place with portal bracket.
25. Rivet outer B-pillar (1) with Ø 6.4 X 14 Polygrip countersunk-head rivets (area O).
26. Outer B-pillar (1) (areas M, M₁ , N and N₁ ).

    The new resistance B must be positioned at exactly the same position as the previous resistance spot welds, because the area was glued previously (areas M₁ and N₁ ). Otherwise the required minimum strength of the weld joint is not ensured.

Fig 8: Soldering Surface On Outer B-Pillar
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27. Remove portal bracket.
28. Outer B-pillar (1) _{SG ««««} (areas P, Q and R).

    Perform inert gas welding in intervals, allow to cool down in between to reduce heat distortion.

29. Grind insert gas welds on outer B-pillar (1) down flat.
30. Clean weld joints.
31. Solder surface on outer B-pillar (1) in areas P, Q and R with body solder and smooth.
32. Remove grinding and drilling chips with wet/dry vacuum cleaner.
33. Foam area of previously removed foam part (arrow) with filler foam.

    Use hole for upper trim strip.