41 21 201 Replace B-Pillar With Reinforcement On Left

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Procedure OBSERVE repair stage 3!

Read contents of BODY, GENERAL .

Use only approved SPOT-WELDING APPARATUS for repairs!

Place vehicle on straightening bench.

Following new body parts are required (see OVERVIEW OF CONSUMABLES ):

(1) Side frame, outer
(2) Middle side frame
Shaped part, B-pillar bottom outside
Shaped part, B-pillar bottom inside

Fig 1: Identifying Side Frame And Outer Middle Side Frame
Courtesy of BMW OF NORTH AMERICA, INC.

Removal:

Fig 2: Identifying A-Pillar From Cavity Sealing

Courtesy of BMW OF NORTH AMERICA, INC.

Mark severance cuts in accordance with specified dimensions and cut.

IMPORTANT: Cut outer panel only for following severance cuts.

Dimension a = approx. 180 mm after center point of Ø 8 mm hole.

Dimension b = approx. 175 mm from edge of roof frame.

Dimension c = approx. 105 mm from Ø 20 mm hole.

Open welded connections in areas (1).

Release A-pillar from cavity sealing (2) and remove.

View, B-pillar passenger compartment.

Open welded connections in area (1).

Fig 3: Identifying B-Pillar Reinforcement Welded Area

Courtesy of BMW OF NORTH AMERICA, INC.

Fig 4: Identifying B-Pillar Passenger Compartment Welded Connections Area (2 Of 2)

Courtesy of BMW OF NORTH AMERICA, INC.

Mark severance cut in accordance with dimension and cut.

IMPORTANT: Cut outer panel only.

Dimension a = approx. 50 mm below previous severance cut.

Open welded connections in areas (1).

Release B-pillar reinforcement from cavity sealing (2) and remove.

Preparation of new part:

Mark severance cuts on new parts in accordance with severance cuts on vehicle and cut.

Prepare REINFORCEMENT PLATES at severance cuts.

Adjust new parts and reinforcements plates with alignment bracket or universal mount.

Installation:

Fig 5: Identifying B-Pillar Reinforcement From Cavity Sealing Welded Connections Areas

Courtesy of BMW OF NORTH AMERICA, INC.

Apply sealing compound to cavity sealing . See 41 00... INSTALLING CAVITY SEALING (EXPANDED) or 41 00... INSTALLING CAVITY SEALING (NOT EXPANDED) (1).

Install new part and reinforcement plate with alignment bracket or universal fixture and weld in designated areas (2).

NOTE: When installing the B-pillar reinforcement new part, the panel thickness of the missing B-pillar outer skin must be taken into consideration depending on the straightening system manufacturer.

Weld new part in area (1).

Fig 6: Identifying B-Pillar Reinforcement Welded Area

Courtesy of BMW OF NORTH AMERICA, INC.

Fig 7: Identifying Sealant Applying Area On Cavity Sealing

Courtesy of BMW OF NORTH AMERICA, INC.

Apply sealant to cavity sealing . See 41 00... INSTALLING CAVITY SEALING (EXPANDED) or 41 00... INSTALLING CAVITY SEALING (NOT EXPANDED) (1).

Install new part and reinforcement plate and weld in area (2).