Remove B-Pillar With Reinforcement

Mark and perform the separating cut (1) in accordance with the dimension.
Dimension (a) = 70 mm from the center of the hinge mount
Cut through B-pillar completely. Do not damage the inner side member in doing so.

Courtesy of BMW OF NORTH AMERICA, INC.
NOTE:
RISK OF DAMAGE
Carbon Fiber Reinforced Plastic body parts damages.
Carbon Fiber Reinforced Plastic body parts may not be damaged under any circumstance.
- Carry out separation cut only on outer component. Do not tap the underlying component.
- While removing the adhesive, do not tap the underlying component.
Courtesy of BMW OF NORTH AMERICA, INC.
Mark and perform the separating cuts in accordance with the specified dimensions.
Thereby disconnect only the outer panel.

Dimension (a) = 80 mm from the center of the mounting.

Dimension (b) = 400 mm from dimension a

Dimension (c) = 15 mm from the component edge to the roof frame
Mark and perform the separating cut (1) in accordance with the schematic diagram.
Cut through the B-pillar completely.
Release welded connections in areas (2).
Release and remove the section (3) from the cavity sealings.

Courtesy of BMW OF NORTH AMERICA, INC.
Remove the cavity sealing (1).
NOTE: TECHNICAL INFORMATION
The cavity sealing is replaced by HS3 cavity foam upon installation.
Check the areas (2) for visible damages on the CFRP pipe (3), replace CFRP pipe if necessary.

Courtesy of BMW OF NORTH AMERICA, INC.
Completely remove the cavity sealing in the area (1). In the area (1), joining is done on the inside via welding.

Courtesy of BMW OF NORTH AMERICA, INC.
Gradually release the blind rivet connections (1) with a belt sander.
Ensure that temperatures on the CFRP pipe will not be too high; cool the blind rivets with compressed air, if necessary.
Push the rest of the blind rivets through the CFRP pipe.
Use the rivet holes to fill the CFRP pipe with cavity foam HS3 to prevent the remaining parts of the blind rivets from rattling.

Courtesy of BMW OF NORTH AMERICA, INC.
Release welded connections in areas (1).

Courtesy of BMW OF NORTH AMERICA, INC.
Tape off the CFRP pipe (1) with aluminum adhesive tape.
Mark and perform the separating cuts (2) in accordance with the schematic diagram.
While carrying out the separating cuts, ensure that the CFRP pipe does not get damaged.

Courtesy of BMW OF NORTH AMERICA, INC.
Apply aluminum foil (1) to the reinforcement of the B-pillar (2) according to the schematic diagram.
Apply the aluminum foil in such a way that there is clearance (4) between the CFRP pipe (3) and the aluminum foil itself.

Courtesy of BMW OF NORTH AMERICA, INC.
NOTE:
RISK OF DAMAGE
CFRP body part damage.
The influence of excessive heat may lead to CFRP body part damage.
- Avoid the application of heat on CFRP body parts. Do not exceed the maximum permitted temperature of 120°C for a period of 5 minutes.
Heat up the bonded connections (1) until the adhesive can be removed.

Courtesy of BMW OF NORTH AMERICA, INC.

Do not heat up the CFRP pipe in this process.

Heating by means of flame of butane gas: approx. 1 to 2 min

Heating by means of hot air blower with 500 to 600°C: Approx. 4 min
Remove the reinforcement of the B-pillar (2) from the CFRP pipe using locking pliers and applying heat at the same time.
Keep the locking pliers under slight tension only in order to prevent damaging the CFRP pipe.
Open the welded connections in the area (1) and remove the B-pillar section (2).

Courtesy of BMW OF NORTH AMERICA, INC.

Mark and perform the separating cut (1) in accordance with the dimension.
Dimension (a) = 125 mm from the recess in the side member
Open welded connections in area (2).
Release the spot-welded adhesive joints in area (3).
Observe the position of the cavity sealings (4).

Courtesy of BMW OF NORTH AMERICA, INC.
Mark and perform the separating cut (1) in accordance with the dimension.
Dimension (a) = 95 mm from the recess in the side member
Open welded connections in area (2).
Release the spot-welded adhesive joints in area (4).
Release and remove the side member from the cavity sealings (3) and the bonded connection (5).

Courtesy of BMW OF NORTH AMERICA, INC.
Front door sill: Mark separating cut for sill reinforcement plate (2) according to dimension.
Dimension (a) = 125 mm from the separating edge of the outer side sill
Carry out the marking for the separating cut in a way inner surface (3) of the inner side sill (4).

Courtesy of BMW OF NORTH AMERICA, INC.

NOTE: TECHNICAL INFORMATION
For additional accessibility, an aperture needs to be cut out for this separating cut.
The removed aperture is reused upon installation.
Mark and perform the separating cut (1) in accordance with the specified dimensions.
Dimension (a) = 10 mm from the component edge of the inner side sill

Courtesy of BMW OF NORTH AMERICA, INC.

Select dimension (b) depending on the cutting tool.
Remove aperture (2).
(3) = mark for the separating cut on the sill reinforcement plate
Mark and perform the separating cut (1) in accordance with the specified dimensions.
Dimension (a) = 15 mm from the component edge of the inner side sill

Select dimension (b) depending on the cutting tool.
Remove aperture (2).
(3) = mark for the separating cut on the sill reinforcement plate

Courtesy of BMW OF NORTH AMERICA, INC.
Perform separating cut (1) on the sill reinforcement plate (2) in accordance with the previous marking.
Do not damage the inner side sill (3) during this process.

Courtesy of BMW OF NORTH AMERICA, INC.
If appropriate, make the separating cut with a pneumatic angle grinder.

Courtesy of BMW OF NORTH AMERICA, INC.
Rear sill: Mark the separating cut (1) on the sill reinforcement plate (2) according to dimension.
Dimension (a) = 55 mm from the recess (3)
Carry out the marking for the separating cut in a way that the separating cut is on the same level as the inner surface (4) of the inner side sill (5).

Courtesy of BMW OF NORTH AMERICA, INC.

NOTE: TECHNICAL INFORMATION
For additional accessibility, an aperture needs to be cut out for this separating cut.
The removed aperture is reused upon installation.
Mark and perform the separating cut (1) in accordance with the specified dimensions.
Dimension (a) = 10 mm from the component edge of the inner side sill

Dimension (b) = depending on the cutting tool
Remove aperture (2).
(3) = mark for the separating cut on the sill reinforcement plate.

Courtesy of BMW OF NORTH AMERICA, INC.
Mark and perform the separating cut (1) in accordance with the specified dimensions.
Dimension (a) = 15 mm from the component edge of the inner side sill

Select dimension (b) depending on the cutting tool.
Remove aperture (2).
(3) = mark for the separating cut on the sill reinforcement plate

Courtesy of BMW OF NORTH AMERICA, INC.
Perform separating cut (1) on the sill reinforcement plate (2) in accordance with the previous marking.
Do not damage the inner side sill (3) during this process.

Courtesy of BMW OF NORTH AMERICA, INC.
Release the welded connections in the areas (1) to (3) using the belt sander.

Courtesy of BMW OF NORTH AMERICA, INC.

NOTE: TECHNICAL INFORMATION
The tension must be maintained on the bonded component to be able to loosen bonded connection.
Weld the tensioning panel (1) onto the sill reinforcement plate (2).
Fasten the tensioning clamp to the tensioning panel (1).
Keep the tension in direction of arrow on the sill reinforcement plate (2) using a straightening tool.

Courtesy of BMW OF NORTH AMERICA, INC.

NOTE: TECHNICAL INFORMATION
For additional information see: 41 00... Releasing bonded connections
Open bonded connections in areas (1) to (4) and remove the sill reinforcement plate.

Courtesy of BMW OF NORTH AMERICA, INC.
Loosen welded connections in areas (1).
Remove the remaining section of the inner part of the B-pillar (2).

Courtesy of BMW OF NORTH AMERICA, INC.