Rear End Center Assembly Cut Off - Ar64.20-P-1000-02MFA

Model 177.0 

Model 247.0/6/7 

The superordinate service document as well as the safety information in the service document must be observed.

Courtesy of MERCEDES-BENZ USA

Shown on model 177.0 

1. Remove all 6 threaded pins for the mount of the crossmember.

   Install new threaded pins.

2. Expose spot welds on the rear-end center section (1) and cut out (areas A₁ , A₂ , A₃ , A₅ , A₆ , A₇ , A₈ , and A₉ ).
3. Expose spot welds on the rear-end center section (1) and drill through with a diameter of 6.5 mm (area B₁ , B₂ , and A₄ ).
4. Expose spot welds on the rear-end center section (1) and drill through with a diameter of 6.5 mm (area C₁ 1 and C₂ ).

   Shown on model 177.0 

   Courtesy of MERCEDES-BENZ USA

   Courtesy of MERCEDES-BENZ USA

   Shown on model 177.0 

5. Heat rear-end center section (1) in cross-hatched areas.

   Cross-hatched area is bonded.

6. Remove rear-end center section (1).

   Courtesy of MERCEDES-BENZ USA

   Shown on model 177.0 

7. Grind mating surfaces down to bare metal in cross-hatched areas.

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

8. Grind off mating surface in the cross-hatched area on the inside (area E).
9. Remove grinding dust and drill chips.
10. Apply zinc dust paint to insides of spot weld flanges. parts kit.

    Do not coat bonding surfaces with zinc dust paint (area D₁ , D₂ , D₃ and D₄ ).

    Otherwise adhesion problems can occur.

11. Apply zinc dust paint to the insides of the mating surfaces in the cross-hatched area (area E).
12. Grind mating surfaces in the cross-hatched area down to bare metal on the inside.
13. Remove grinding dust.
14. Apply zinc dust paint to the insides of the mating surfaces in the cross-hatched area parts kit.

    Shown on model 177.0 

    Courtesy of MERCEDES-BENZ USA