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41 12 557 Replacing Luggage Compartment Floor, Middle Section (Tail Panel Removed) (Non-Hybrid)

WARNING: This page does not describe the selected car, but rather 50 other vehicles, including the 2016 BMW M5, 2016 BMW ActiveHybrid 5, 2016 BMW 550i xDrive, 2016 BMW 550i, and 2016 BMW 535i xDrive. However, it is still accessible from the selected car via links, so may be relevant.

Read contents of BODY, GENERAL .

Follow procedure for REPAIR STAGE 3 .

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

STRIP DOWN VEHICLE 

Following new body parts are required (refer to ELECTRONIC PARTS CATALOGUE ):

Following CONSUMABLES  are required:

Material Quantity
Adhesive K5a 2
Blind rivets N3 25
Cleaning agent R1 1
Sealant D1  
Fig 1: Identifying Luggage Compartment Floor, Rear
G09915991Courtesy of BMW OF NORTH AMERICA, INC.

Removal of luggage compartment floor 

Fig 2: Identifying Luggage Compartment Floor Severance Cutting Dimension
G09915992Courtesy of BMW OF NORTH AMERICA, INC.

Mark severance cut (1) in accordance with dimension a and cut.

IMPORTANT: Cut outer panel only.

Dimension a = 25 mm from component edge of luggage compartment floor, front.

Open welded connections in area (2).

Remove the luggage compartment floor.

NOTE: New part is installed with overlap in area of severance cut (1).

New part preparation 

Mark new luggage compartment floor in accordance with severance cut on vehicle + 20 mm extra material and cut.

Flatten stampings (1) on both sides.

Fig 3: Flattening Stampings On Both Sides
G09915993Courtesy of BMW OF NORTH AMERICA, INC.

Set down luggage compartment well and adjust in combination with cross member and tail panel to fit and secure.

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

Area Number
1 8 of
2 5
3 4
Fig 4: Identifying Bore Holes For Blind Rivets
G09915994Courtesy of BMW OF NORTH AMERICA, INC.

Remove new parts and deburr bore holes.

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

Installation of luggage compartment floor: 

Clean all  bonding surfaces with cleaning agent R1.

Apply adhesive to bonding surfaces.

Install new parts and rivet with blind rivets.

Graphic similar.

Perform MAG welding throughout to new part in area (1).

Set 20 mm MAG welds at a distance of 15 mm in area (2).

IMPORTANT: Risk of damage to adhesive area!
Avoid applying excessive heat to the neighboring adhesive areas!
Fig 5: Identifying Luggage Compartment Floor MAG Welds Areas (Middle)
G09915995Courtesy of BMW OF NORTH AMERICA, INC.