Prepare Rear Longitudinal Member For Installation - Ar64.20-P-1200-23LWO

	Risk of injury caused by scraping or cutting body parts on sharp vehicle parts	Always wear protective gloves when working on or near sharp and non-deburred vehicle parts. Deburr repair panels.	AS00.00-Z-0017-01A
Notice	General information on body repair		AH60.00-P-0001-01KOA
Notice	Pretreatment of bonding surfaces		AH60.00-P-0008-01SX
	General information on repair of vehicles with ultra-strength steels.		AH60.00-P-0024-01N

Model 238.3

REPAIR MATERIALS

Number	Designation	Order number
BR00.45-Z-1056-07A	1K-zinc dust paint	A 000 986 28 00

The following operation steps are shown on the left side of the vehicle. This must be similarly performed for damage to the right side of the vehicle.

Use following repair materials:

Zinc dust paint

Remove screws (8) at rear longitudinal member (1).

Courtesy of MERCEDES-BENZ USA

Courtesy of MERCEDES-BENZ USA
Remove fixing rivets at rear longitudinal member (1) (area H).
Mark separating point on rear longitudinal member (1) and cut (area A).
Take over separating point from vehicle and take into account an overlap of approx. 20 mm.
Grind mating surfaces on rear longitudinal member (1) down to bare metal in cross-hatched areas.
Remove grinding dust.
Observe pretreatment of bonding surfaces.

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Grind mating surfaces on rear longitudinal member (1) down to bare metal in cross-hatched areas.
Grind mating surface on inside down to bare metal (area B).

Grind spot weld flanges down to bare metal on both sides.
Remove grinding dust.
Observe pretreatment of bonding surfaces.

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Grind mating surfaces on rear longitudinal member (1) down to bare metal in cross-hatched areas.
Grind spot weld flanges down to bare metal on both sides.
Remove grinding dust.
Apply zinc dust paint to insides of spot weld flanges.
Do not coat bonding surfaces with zinc dust paint (area C).

Otherwise adhesion problems can occur.

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Observe pretreatment of bonding surfaces.
Mark separating point on lower crossmember (2) and cut (area E).
Take over separating point from vehicle.

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Grind mating surfaces on lower crossmember (2) down to bare metal in cross-hatched areas.
Remove grinding dust.
Observe pretreatment of bonding surfaces.

Courtesy of MERCEDES-BENZ USA

Courtesy of MERCEDES-BENZ USA
Grind mating surfaces on upper crossmember (3) down to bare metal in cross-hatched areas.
Grind spot weld flanges down to bare metal on both sides.
Remove grinding dust.
Apply zinc dust paint to insides of spot weld flanges.
Do not coat bonding surfaces with zinc dust paint (area D).

Otherwise adhesion problems can occur.

Observe pretreatment of bonding surfaces.

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Grind mating surfaces on cover plate (4) down to bare metal in cross-hatched areas.
Grind spot weld flanges down to bare metal on both sides.
Remove grinding dust.
Apply zinc dust paint to insides of spot weld flanges.
Do not coat bonding surfaces with zinc dust paint (area G).

Otherwise adhesion problems can occur.

Observe pretreatment of bonding surfaces.

Courtesy of MERCEDES-BENZ USA
Grind mating surfaces on center support (6) down to bare metal in cross-hatched areas.
Grind spot weld flanges down to bare metal on both sides.
Remove grinding dust.
Apply zinc dust paint to insides of spot weld flanges.
The following operation steps 23 to 25 are shown on the left side of the vehicle. The operation steps must be similarly performed on the left side of the vehicle.
Grind mating surfaces at support (7) down to bare metal in cross-hatched areas.
Grind spot weld flanges down to bare metal on both sides.
Remove grinding dust.
Apply zinc dust paint to insides of spot weld flanges.

Courtesy of MERCEDES-BENZ USA

Courtesy of MERCEDES-BENZ USA
Grind mating surfaces at support (5) down to bare metal in cross-hatched areas.
Remove grinding dust.