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Home >> BMW >> 2012 >> 535i GT >> Repair and Diagnosis >> Collision >> Dimensions >> COLLISION - BODY PANEL REPAIR (F07) (GT Sedan) (535i GT) >> Luggage Compartment Floor >> 41 12 557 Replacing Luggage Compartment Floor, Middle Section (Tail Panel Removed) >> Removal of luggage compartment floor

Removal of luggage compartment floor

Operation described predominantly on the left side. Right side identical.

View from below.

Open welded connections in areas (1).

Fig 1: Identifying Welded Connection Area
G08423681Courtesy of BMW OF NORTH AMERICA, INC.
Fig 2: Identifying Luggage Compartment Floor Severance Cut Dimension And Welded Connection Areas
G08423682Courtesy of BMW OF NORTH AMERICA, INC.

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

IMPORTANT: Cut outer panel only.
Measurement a = 20 mm
Mark severance cuts (2) at component edge and cut.
Open welded connections in areas (3).
Remove trunk floor.
NOTE: The new part is installed overlapping in the areas of the severance cuts.

New part preparation 

Mark new luggage compartment floor part in accordance with severance cuts on vehicle + 15 mm extra material and cut.

Flatten stampings (1) on both sides.

Fig 3: Identifying Stamping Area
G08423683Courtesy of BMW OF NORTH AMERICA, INC.

Set down new part in the areas of the overlap.

Adjust luggage compartment well in combination with cross member and tail panel to fit and secure.

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

Fig 4: Identifying N3 Blind Rivets Bore Hole Area
G08423684Courtesy of BMW OF NORTH AMERICA, INC.
Area Number
1 8
2 5
3 6

In areas (1) and (2) set 4.2 mm dia. holes for blind rivets.

Area Number
1 2
2 7
Fig 5: Identifying Blind Rivets Bore Area
G08423685Courtesy of BMW OF NORTH AMERICA, INC.

In areas (1) and (2) set holes for blind rivets.

Area (1): 2 bore holes with dia. 6.8 mm  for blind rivets N1  .

Areas (2): in each case 4 bore holes with dia. 4.2 mm  for blind rivets N3  .

Prepare new parts for MAG welding in areas (3).

Remove new parts and deburr bore holes.

Fig 6: Identifying MAG Welding Area, Blind Rivets N1 And N3 Bore Hole Areas
G08423686Courtesy of BMW OF NORTH AMERICA, INC.
IMPORTANT: Do not grind new parts and body in area of bonding surfaces.