On-the-job safety

• Comply with the relevant safety regulations

Remove  remnants of adhesive from roof shell.

Clean adhesive area with Isohexane.

Air drying time: ≥ 1 minute

Use 4 mm and 7 mm dia. butylene thread (see BMW Parts Service).

Use 1.5 mm x 15 mm butylene flat tape (see BMW Parts Service).

Overview of butylene thread laying on front roof shell, side: 

1. Apply 4 mm dia. butylene thread up to middle of threaded bushes in sheet metal groove.
2. Laying on front roof shell area, see below.
3. Laying on rear roof shell area, see below.

   Butylene thread resting on threaded bushes.

   Fig 1: Identifying Butylene Thread Laying On Front Roof Shell

   Courtesy of BMW OF NORTH AMERICA, INC.

Overview of butylene flat tape application on front roof shell corner, left/right: 

1. Apply butylene flat tape approx. 3 cm in length to roof shell corner on each side.
   Fig 2: Identifying Butylene Flat Tape On Front Roof Shell Corner, Left/Right

   Courtesy of BMW OF NORTH AMERICA, INC.

Overview of butylene thread laying on front roof shell, rear left/right: 

1. Apply 7 mm dia. butylene thread from middle of threaded bush rising slightly up to elongated hole.
2. Allow butylene thread to run out thinner closed around elongated hole.
   Fig 3: Identifying Butylene Thread Laying On Front Roof Shell, Rear Left/Right

   Courtesy of BMW OF NORTH AMERICA, INC.

Overview of butylene thread laying on front roof shell, rear left/right: 

1. Apply 7 mm dia. butylene thread from middle of threaded bushes rising slightly.

Installation: 

Connect and smooth butylene thread joints with plastic wedge.

Fig 4: Identifying Butylene Thread Laying On Front Roof Shell, Rear Left/Right

Courtesy of BMW OF NORTH AMERICA, INC.

Overview of butylene thread laying on front roof shell, front left/right: 

1. Butylene flat tap on roof shell corner.
2. Apply 7 mm dia. butylene thread from middle of threaded bush rising slightly up to seal carrier.

Installation: 

Connect and smooth butylene thread joints with plastic wedge.

Fig 5: Identifying Butylene Thread Laying On Front Roof Shell, Front Left/Right

Courtesy of BMW OF NORTH AMERICA, INC.

Overview of butylene thread laying on front roof shell, front left/right: 

1. Butylene flat tap on roof shell corner.
2. Allow 7 mm dia. butylene thread to run out from middle of threaded bush rising slightly up to seal carrier.
   Fig 6: Identifying Butylene Thread Laying On Front Roof Shell, Front Left/Right

   Courtesy of BMW OF NORTH AMERICA, INC.

Installation: 

A second person will be need to help install the seal.

Position seal at front corner on left and right of roof shell.

Align seal with screw fastening point (1) to thread in roof shell.

Press seal down in front area.

Fig 7: Aligning Seal With Screw Fastening Point To Thread In Roof Shell

Courtesy of BMW OF NORTH AMERICA, INC.

Installation: 

Press seal down at side.

Carry over noted gap dimensions and screw down seal.

Tightening torque: see 1AZ in 54 37 POWER CONVERTIBLE TOP .

Fig 8: Measuring Gap Dimensions

Courtesy of BMW OF NORTH AMERICA, INC.

Press seal (1) down at rear left and right at sealing bead and pop into roof shell.

Fig 9: Identifying Seal

Courtesy of BMW OF NORTH AMERICA, INC.

Check retraction depth of windows and adjust  if necessary.

Carry out leak test  .