Install Upper Front Longitudinal Member - Ar62.20-P-1286-03LWO

Model 238 

The following steps are shown on the left side of the vehicle and must be performed analogously on the right side in the event of damage.

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1. Install upper front longitudinal member (1), fit with welding device and fix in place.
2. Install reinforcement (3), fit and fix in place.
3. Drill rivet holes in upper front longitudinal member (1) and reinforcement (3) with Ø 6, 7 mm (areas A, B and C).

   Drill rivet holes from inside through present hole in body (area B).

4. Remove upper front longitudinal member (1), reinforcement (3) and welding device.
5. Deburr drill holes on upper front longitudinal member (1), reinforcement (3) and body on both sides.
6. Remove drilling chips.

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7. Apply 2-component adhesive to body in crosshatched areas.

   Observe pretreatment of bonding surfaces and manufacturer's specifications for drying and processing time of 2-component adhesive.

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8. Install upper front longitudinal member (1), fit with welding device and fix in place.
9. Install reinforcement (3) and fix in place.
10. Rivet upper front longitudinal member (1) with Ø 6.5x12.5 rivets (areas D₁ ).

    Clamping range 3, 76 to 4.73 mm

11. Rivet upper front longitudinal member (1) and reinforcement (3) with Ø 6.5x12.5 rivets (areas D₂ ).

    Clamping range 2.47 to 3.44 mm

12. Rivet upper front longitudinal member (1) and reinforcement (3) with Ø 6.5x14.5 rivets (areas D₃ ).

    Clamping range 4, 97 to 3.63 mm

13. Upper front longitudinal member (1) (areas E).
14. Upper front longitudinal member (1) and reinforcement (3) (areas F).

    Inert gas weld in intervals and allow welding area to cool down in between. This reduces heat distortion.

15. Remove welding device.

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16. Install strut (2) and bracket (4), fit and fix in place.
17. Drill rivet holes on strut (2) and bracket (4) with Ø 6, 7 mm (areas G and H).
18. Remove strut (2) and bracket (4).
19. Deburr rivet holes on strut (2), bracket (4) and body on both sides.
20. Remove drilling chips.
21. Coat insides of riveted joints with zinc dust paint.

    Do not coat bonding surfaces with zinc dust paint (areas G).

    Otherwise adhesion problems may occur.

22. Apply 2-component adhesive to body in crosshatched areas.

    Observe pretreatment of bonding surfaces and manufacturer's specifications for drying and processing time of 2-component adhesive.

    Courtesy of MERCEDES-BENZ USA

    Courtesy of MERCEDES-BENZ USA

23. Install strut (2) and bracket (4) and fix in place.
24. Rivet strut (2) with Ø 6.5x12.5 rivets (areas I).

    Clamping range 2, 30 to 3.71 mm

25. Rivet strut (2) and bracket (4) with Ø 6.4x12 rivets (areas J).

    Clamping range 1, 77 to 2.16 mm