Replace The Left Side Frame Completely (Rear Side Panel Removed) (M4 Convertible)

Observe procedure for REPAIR STAGE 3 .

Read contents of BODY, GENERAL .

Spot-weld bonding is used on this vehicle. Observe specific PROCEDURE .

Use only approved Spot-Welding Apparatus for repairs; See WORKSHOP EQUIPMENT (BMW AND MINI VEHICLES) .

For stripping and rigging operations, refer to texts on KSD CD (job number 41 21 685).

Place vehicle on straightening bench.

Following new body parts are required (see applicable BMW Parts Catalog):

• (1) Side frame, outer

Following CONSUMABLES  are required:

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Material	Quantity
Adhesive K1	1
Blind rivets N3	1
Blind rivets N6	3
Cleaning agent R1	1
Sealant D1
Cavity wax remover

Removal: 

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Open welded connections in areas (1).

LOOSEN  spot-welded adhesive joints in areas (2).

Open brazed joint in area (3).

(4) = Position of cavity sealing.

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Open welded connections in areas (1).

Open spot-welded adhesive joints in area (2)

View of A-pillar vehicle interior.

Undo metal active gas welded connections in areas (1).

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Courtesy of BMW OF NORTH AMERICA, INC.

Open welded connections in areas (1).

Open spot-welded adhesive joints in area (2) Remove side frame.

Preparation of new part: 

Fit new parts using an alignment bracket or universal fixture and fit together with the side wall.

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Rear wheel arch area:

Drill 4 bore holes (2) and (3) of diameter 4.2 mm in area (1) for blind rivet.

Attachment in this area (1) is effected using adhesive riveting technology.

In all other areas, prepare new part for joining by welding.

OBSERVE  preparation of bonding surfaces.

Installation: 

Clean all bonding surfaces on vehicle and on new part with cleaning agent R1.

Apply adhesive K1 to bonding surface (1).

Apply sealant to cavity sealing.

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Courtesy of BMW OF NORTH AMERICA, INC.

Install new part with alignment bracket or universal fixture and secure using gripping pliers.

Install blind rivet N6 (2) and blind rivet N3 (3) in area (1).

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In areas (1), weld new parts in the same way as in series standard.

(2) = Cavity sealing

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Weld new part in the areas (1).

MAG weld new parts in areas (1).

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Courtesy of BMW OF NORTH AMERICA, INC.

Weld new part in the areas (1).