Prepare rear inner wheelhouse for installation - AR63.10-P-0670-03SX

COMMERCIALLY AVAILABLE TOOLS

Number	Designation
WH58.30-Z-1001-03A	Round wire brush, braided, dia. 70 mm
WH58.30-Z-1024-04A	Abrasive disk, dia. 115 mm, 80 m/s (max. 13, 250 RPM)

WORKSHOP EQUIPMENT

WE58.40-Z-1001-03A	Drill (electric/pneumatic)
WE58.40-Z-1003-03A	Angle grinder (electric/pneumatic)
WE58.40-Z-1004-03A	Body saw (electric/pneumatic)

REPAIR MATERIALS

Number	Designation	Order number
BR00.45-Z-1001-07A	Zinc dust paint suitable for spot welding	A 000 986 34 42

The following operation steps are shown on the left component for model 221 and must be performed analogously on the right side in the event of damage.

Mark separation line on inner rear wheelhouse (1) (area A).
Transfer separation line from vehicle (area A).
Cut inner rear wheelhouse (1) on separation point with body saw (area A).
Remove inner rear wheelhouse section (1).

Fig 1: Identifying Inner Rear Wheelhouse Separation Point
Courtesy of MERCEDES-BENZ USA
Grind connection surfaces on inner rear wheelhouse (1) down to bare metal in cross-hatched areas with round wire brush.
Grind spot weld flanges down to bare metal on both sides.

Fig 2: Identifying Inner Rear Wheelhouse Connection Surfaces (1 Of 2)
Courtesy of MERCEDES-BENZ USA
Grind connection surfaces on inner rear wheelhouse (1) down to bare metal in cross-hatched areas with round wire brush.
Grind spot weld flanges down to bare metal on both sides.

Fig 3: Identifying Inner Rear Wheelhouse Connection Surfaces (2 Of 2)
Courtesy of MERCEDES-BENZ USA
Using zinc dust paint, coat insides of spot weld flanges that were not additionally bonded.
Do not coat bonding surfaces with zinc dust paint (areas B, C, D, E and F).

Observe pretreatment of bonding surfaces.