Install new parts, left side rear damage - AR64.20-P-1200-33GZ

Measures for preventing damage to vehicles or components when performing arc welding work

All models

COMMERCIALLY AVAILABLE TOOLS

Number	Designation
WH58.30-Z-1003-02A	Clamping pliers
WH58.30-Z-1001-03A	Round wire brush, braided, dia. 70 mm
WH58.30-Z-1023-04A	Abrasive disk, dia. 50 mm, 80 m/s (max. 23,000 rpm)
WH58.30-Z-1024-04A	Abrasive disk, dia. 115 mm, 80 m/s (max. 13,250 rpm)

WORKSHOP EQUIPMENT

WE58.40-Z-1001-02A	Inert gas welder
WE58.40-Z-1002-02A	Spot welder
WE58.40-Z-1001-03A	Drill (electric/pneumatic)
WE58.40-Z-1002-03A	Straight grinder (electric/pneumatic)
WE58.40-Z-1003-03A	Angle grinder (electric/pneumatic)
WE58.40-Z-1005-03A	Wet/dry vacuum cleaner

REPAIR MATERIALS

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

Fig 1: Identifying Weld In Rear Inner Crossmember Section In Areas K, N And O

Courtesy of MERCEDES-BENZ OF NORTH AMERICA.

Install rear inner crossmember section (4) and fasten with clamping pliers.
Weld in rear inner crossmember section in areas K, N and O with .
Weld in rear inner crossmember section in area L with .

Fig 2: Identifying Weld In Rear Inner Crossmember Section In Area R
Courtesy of MERCEDES-BENZ OF NORTH AMERICA.
Weld in rear inner crossmember section in area R with .
Insert D-ring section (3) together with reinforcement (2) and fasten with clamping pliers.
Align D-ring section in four holes (arrows) Align reinforcement on contours of D-ring section
Weld in D-ring section and reinforcement in area S with .
Weld in D-ring section in area B with .

Fig 3: Identifying D-Ring Section In Areas HA And U
Courtesy of MERCEDES-BENZ OF NORTH AMERICA.
Weld in D-ring section in areas HA and U with .
Weld in D-ring section in area HB with .
Weld in D-ring section in area A with .
Grind continuous welds for D-ring section down flat
Clean welds.

Fig 4: Identifying Weld In D-Ring Section In Areas HA And U
Courtesy of MERCEDES-BENZ OF NORTH AMERICA.
Insert lock carrier reinforcement (6) and fasten with clamping pliers
Weld in lock carrier reinforcement in areas I and J with .
Clean welds.
Apply primer to areas no longer accessible during further work
Do not apply primer to flanges still to be welded!

Fig 5: Identifying Weld In Lock Carrier Reinforcement In Areas I And J
Courtesy of MERCEDES-BENZ OF NORTH AMERICA.

Fig 6: Identifying Weld In Lock Carrier In Areas V And W
Courtesy of MERCEDES-BENZ OF NORTH AMERICA.
Insert lock carrier (5) and fasten with clamping pliers.
Weld in lock carrier in areas V and W with .
Weld in lock carrier in area T with .
Install side trunk floor (9) and fasten with clamping pliers.
Weld in side trunk floor in areas QA and QC with .
Weld in side trunk floor in area QB with .
Insert rear wheelhouse extension (10) and fasten with clamping pliers .
Weld in rear wheelhouse extension in area P with .

Fig 7: Identifying Weld In Side Trunk Floor In Areas QA And QC
Courtesy of MERCEDES-BENZ OF NORTH AMERICA.
Clean welds.
Apply primer to areas no longer accessible during further work
Do not apply primer to flanges still to be welded!
Install rear crossmember outer section (8) and fasten with clamping pliers.

Fig 8: Identifying Rear Crossmember Outer Section And Fasten With Clamping Pliers
Courtesy of MERCEDES-BENZ OF NORTH AMERICA.
Weld in rear crossmember outer section in areas DB and DC with .
The spot welds in area DB are illustrated only symbolically. Reweld with same number of spot welds as made at factory (according to old parts).
Clean welds.

Fig 9: Identifying Weld In Rear Crossmember Outer Section In Areas DB And DC
Courtesy of MERCEDES-BENZ OF NORTH AMERICA.