41 12 590 Replacing Luggage Compartment Floor (Complete With Left Or Right Inner Wheel Arch Section, Tail Panel Removed)

WARNING: This page is about a different variant/trim than selected.

Read contents of Body, General . Refer to 41 0 Contents Of Body, General .

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

Use only approved spot-welding apparatus for repairs. Refer to 41 00... Workshop Equipment .

Place vehicle on straightening bench.

Following new body parts are required (refer to Electronic Parts Catalogue ETK):

(1) Luggage compartment floor, upper section
(2) Rear axle carrier
(3) Wheel arch, rear, inner half, left

Fig 1: Identifying Wheel Arch, Rear, Inner Half & Left
Courtesy of BMW OF NORTH AMERICA, INC.

Mark severance cut in accordance with measurement a and cut.

Measurement a = 40 mm behind support, frame side member (1).

Installation:

Weld in reinforcement plates at severance cuts. Refer to 41 00... Welding In Reinforcement Plate (Steel Plate) .

Fig 2: Marking Severance Cut In Accordance With Measurement

Courtesy of BMW OF NORTH AMERICA, INC.

Mark severance cut (1) and cut.

IMPORTANT: Cut outer metal sheet only.

Open weld joints in areas (2).

Installation:

Weld new components in areas (3) additionally.

Fig 3: Identifying Weld Joints Areas

Courtesy of BMW OF NORTH AMERICA, INC.

Mark severance cut (1) in accordance with measurement a and cut rear axle carrier.

IMPORTANT: Cut outer metal sheet only.

Measurement a = 70 mm from rear axle bushing mounting.

Open weld joints in area (2).

Installation:

Weld in reinforcement plates at severance cuts. Refer to 41 00... Welding In Reinforcement Plate (Steel Plate) .

Fig 4: Identifying Weld Joints Area

Courtesy of BMW OF NORTH AMERICA, INC.

Open weld joints in area (1).

Installation:

Weld new components in areas (2) additionally.

Fig 5: Identifying Weld Joints Area

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Coupe only:

Open weld joints in area (1).

Installation:

Weld new components in area (2) additionally.

Fig 6: Identifying Weld Joints Area

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NOTE: Rear parcel shelf is shown removed for purposes of clarity.

Open weld joints in areas (1) and (2).

Fig 7: Identifying Weld Joints Areas

Courtesy of BMW OF NORTH AMERICA, INC.

NOTE: Rear parcel shelf is shown removed for purposes of clarity.

Open weld joints in area (1).

Installation:

Weld new component in areas (2) additionally.

Fig 8: Identifying Weld Joints Area

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NOTE: Rear parcel shelf is shown removed for purposes of clarity.

Mark severance cut (1) centrally and cut.

Cut floor pan and cross-member underneath.

Open weld joints in area (2).

Fig 9: Identifying Weld Joints Area

Courtesy of BMW OF NORTH AMERICA, INC.

Preparation of new part:

Mark severance cut (1) in accordance with measurement and cut.

IMPORTANT: Cut outer metal sheet only.

Measurement a = 170 mm

Measurement b = 110 mm

Installation:

Weld in reinforcement plates at severance cuts. Refer to 41 00... Welding In Reinforcement Plate (Steel Plate) .

Fig 10: Marking Severance Cut In Accordance With Measurement

Courtesy of BMW OF NORTH AMERICA, INC.

Preparation of new part:

Open weld joints in area (2).

Installation:

The cut part is not needed.

Fig 11: Identifying Weld Joints Area

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Preparation of new part:

Open weld joints in area (1).

Mark severance cut (2) in accordance with vehicle and cut.

Fig 12: Identifying Weld Joints Area

Courtesy of BMW OF NORTH AMERICA, INC.

Preparation of new part:

Open weld joints in area (1).

Installation:

The cut part (2) is not needed.

Fig 13: Identifying Weld Joints Area

Courtesy of BMW OF NORTH AMERICA, INC.

Preparation of new part:

Open weld joints in area (1).

Mark severance cut (2) in accordance with vehicle and cut.

Fig 14: Identifying Weld Joints Area

Courtesy of BMW OF NORTH AMERICA, INC.

Installation:

Adjust new parts to fit with straightening attachment or universal mount.

Before welding in, also adjust tail panel, rear lid and rear lights to fit.

Weld new components in following order:

(1) Rear axle carrier
(2) Luggage compartment floor, upper section
(3) Support, frame side member
(4) Wheel arch, rear, inner half

Fig 15: Identifying Wheel Arch, Rear & Inner Half
Courtesy of BMW OF NORTH AMERICA, INC.

Installation:

For reasons of accessibility, the repair joining sequence differs from the standard joining sequence.

Fit new component from above in area (1), adjust to fit and weld.

Fig 16: Identifying Weld Joints Area

Courtesy of BMW OF NORTH AMERICA, INC.