41 11 751 Replacing side member and luggage compartment floor on left (left side wall and tail panel removed)

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

Read contents of BODY, GENERAL .

STRIP DOWN vehicle

Place vehicle on straightening bench.

Observe procedure of REPAIR STAGE 3 .

Following new body parts are required:

(1) Frame side member
(2) Luggage compartment floor
(3) Rear axle support
(4) Rear axle support cover
(5) Floor panel reinforcement
(6) Closing plate, wheel arch

Fig 1: Identifying Side Member And Luggage Compartment Floor Components

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Following CONSUMABLES are required:

Material	Quantity
Adhesive K5a	2
Blind rivets N3	34
EMC screws	6
Cleaning agent R1	1
Sealant D1

Removing side members and luggage compartment floor

View from below.

Open welded connections in area (1).

Fig 2: Identifying Welded Connections Area

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Open welded connections in area (1).

Open spot-welded adhesive joints in area (2) and remove luggage compartment floor (3).

Fig 3: Identifying Luggage Compartment Floor And Spot-Welded Adhesive Joints Area

Courtesy of BMW OF NORTH AMERICA, INC.

Mark severance cut in accordance with Dimension a and cut.

Dimension a = approx. 140 mm from the rear screw point of the support bearing.

Open welded connections in area (1).

Fig 4: Identifying Welded Connections Area

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Mark severance cut in accordance with Dimension a and cut.

Dimension a = approx. 200 mm from luggage compartment floor cross member.

Open spot-welded adhesive joints in areas (1) and remove side member.

Fig 5: Identifying Side Member Spot-Welded Adhesive Joints Areas

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New part preparation

Mark new parts rear axle support and rear axle support cover on vehicle in accordance with severance cuts and cut.

For all severance cuts on side members, prepare REINFORCEMENT PLATES .

Adjust new parts with alignment bracket or universal mount and in conjunction with side wall and tail panel and secure.

In areas (1) to (3), set 4.2 mm dia. bore holes for blind rivets N3:

Area	Number
1	3
2	4
3	2

Fig 6: Identifying Areas For Drilling Bore Holes

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In areas (1) and (2), set bore holes Ø 4.2 mm for blind rivets N3.

Area	Number
1	6
2	4

Fig 7: Identifying Areas For Drilling Bore Holes

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In areas (1) to (3), set 4.2 mm dia. bore holes for blind rivets N3:

Area	Number
1	6
2	6
3	3

Remove new parts and deburr bore holes.

Fig 8: Identifying Areas For Drilling Bore Holes

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IMPORTANT: Do not grind new parts and body in area of bonding surfaces.

Installing rear axle support and cover for rear axle support:

Install new parts and reinforcement plates with alignment bracket or universal mount and weld:

NOTE: In area (1), replace the series spot-welded adhesive joints with double the number of welding spots.

Fig 9: Identifying Spot-Welded Adhesive Joints Area

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Adjust new part (1) and weld in area (2).

Fig 10: Identifying Weld Area And New Part

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Installing side members, luggage compartment floor and wheel arch end plate:

Clean all bonding surfaces with cleaning agent R1.

Apply adhesive to bonding surfaces.

Install new part and rivet with blind rivets.

When installing the new parts, make sure that all bonding surfaces have sufficient adhesive.

When the adhesive has hardened, fit 2 EMC screws each in areas (1) and (2).

Fig 11: Identifying Areas For Drilling Bore Holes

Courtesy of BMW OF NORTH AMERICA, INC.

Fit 2 EMC screws in area (1).

Fig 12: Identifying EMC Screws Installation Area

Courtesy of BMW OF NORTH AMERICA, INC.