41 21 930 Inside Left Side Frame Replacement (B-Pillar Reinforcement) (Coupe)

Read contents of BODY, GENERAL   .

Use only approved Spot-Welding Apparatus   for repairs.

Remove or cover those vehicle components in the repair area which are susceptible to heat or dust.

Following new body parts are required:

1. Inner side frame
2. Shaped part, B-pillar, inner (not shown)
3. Shaped part, B-pillar, outer (not shown)
   Fig 1: Inner Side Frame Components

   Courtesy of BMW OF NORTH AMERICA, INC.

Mark severance cut in radius along line (1) and cut.

Open weld joints in areas (2).

Fig 2: Severance Cut Line And Open Weld Joints Areas

Courtesy of BMW OF NORTH AMERICA, INC.

Cut reinforcement plate along line (1).

Measurement a = approx. 58 mm from bottom edge In areas (2), the tube is welded from the rear.

In areas (2), mill holes each to approx. 13 mm and cut MAG weld seams.

Installation: 

Holes (2) are no longer welded.

Fig 3: Reinforcement Plate Line And Weld Hole Areas

Courtesy of BMW OF NORTH AMERICA, INC.

Open weld joints in areas (1).

Installation information: 

• Apply window glass adhesive to Cavity Acoustic Baffle   (2).

Fig 4: Weld Joints Areas And Cavity Acoustic Baffles

Courtesy of BMW OF NORTH AMERICA, INC.

Open weld joints in area (1).

Installation: 

Apply Adhesive   in area (2).

Fig 5: Weld Joint And Adhesive Areas

Courtesy of BMW OF NORTH AMERICA, INC.

Preparation of new part: 

Open weld joints in areas (1) from rear side.

Fig 6: Weld Joints Areas

Courtesy of BMW OF NORTH AMERICA, INC.

Preparation of new part: 

Open weld joints in area (1).

Fig 7: Weld Joints Areas

Courtesy of BMW OF NORTH AMERICA, INC.

Preparation of new part: 

Cut reinforcement plate similar to severance cut on vehicle along line (1).

In areas (2), the tube is welded from the rear.

Fig 8: Welded Tube From Rear

Courtesy of BMW OF NORTH AMERICA, INC.