Firewall Half Prepare For Installation - Ar62.25-P-1110-02FR

Model 257, 290 

The following operation steps are shown on the left side of the vehicle on model 257. In case of damage on the right side of the vehicle, these steps must be performed analogously.

Additional information can be found in the superordinate service document.

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

1. Grind mating surfaces on firewall (3) down to bare metal in crosshatched areas.

   Courtesy of MERCEDES-BENZ USA

2. Grind mating surfaces on firewall (3) down to bare metal in crosshatched areas.
3. Remove grinding dust.

   Observe pretreatment of bonding surfaces.

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4. Mark separating point on firewall crossmember (5) and cut (area K).

   Transfer separation point from vehicle.

   If the connection is to be crimped, observe overlap of 10 mm.

   Courtesy of MERCEDES-BENZ USA

   Courtesy of MERCEDES-BENZ USA

5. Cut off spot welds at firewall crossmember (5) (areas L, L₁ ).
6. Heat firewall crossmember (5) in crosshatched area and remove section from firewall crossmember (5).

   Cross-hatched area is bonded.

   Courtesy of MERCEDES-BENZ USA

   Courtesy of MERCEDES-BENZ USA

7. Grind mating surfaces on firewall crossmember (5) down to bare metal in crosshatched areas.

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8. Grind mating surfaces on firewall crossmember (5) down to bare metal in crosshatched areas.
9. Remove grinding dust.

   Observe pretreatment of bonding surfaces.

10. Grind mating surfaces on pedal bowl (4) down to bare metal in crosshatched areas.
11. Remove grinding dust.

    Observe pretreatment of bonding surfaces.

    Pedal assembly cup (4), inside 

    Courtesy of MERCEDES-BENZ USA