Installing The Roof Outer Skin

• Apply sealant in areas (1).
  CONSUMABLE SPECIFICATION
  
  

  Sealant D2

  290 ml

  83425A547B9

  Courtesy of BMW OF NORTH AMERICA, INC.

• Apply adhesive to bonding surfaces (1).

  Courtesy of BMW OF NORTH AMERICA, INC.

  NOTE: Perform the steps on the left and right side.
• Apply adhesive to bonding surface (1).

  Courtesy of BMW OF NORTH AMERICA, INC.

• Place roof outer skin with helpers evenly and centrally on vehicle and adjust to fit.
  NOTE: Perform the steps on the left and right side.
• Rivet the new part in area (1) with blind rivet (2).
  CONSUMABLE SPECIFICATION
  
  

  Blind rivet N3  Ø 4 mm; clamping area 1-3 mm

  83190301421

  Courtesy of BMW OF NORTH AMERICA, INC.

• Fix roof outer skin with the securing tools 2 469 797  .
  NOTE: TECHNICAL INFORMATION 
  Hardening times for adhesive K5 (nonstructural bonded connection):
  The fixing tools must remain in the vehicle for at least 4 h.
  Do not shift the vehicle during this period. Only then is it permitted to proceed with subsequent installation work.
  The strength for driving is reached after 48 hours hardening time at (15°C) object temperature.
  After 10 h hardening time at (23°C) object temperature.
  After 1 h hardening time at (60°C) object temperature.

  Courtesy of BMW OF NORTH AMERICA, INC.

• Observe the hardening time of the adhesive.
• Remove securing tools only after adhesive has hardened.
• In area (1), rivet the roof outer skin with 7 punch rivets.
  CONSUMABLE SPECIFICATION
  
  

  Punch rivet N5  Ø 5 mm; 5 mm long

  83192158079

• Weld the roof outer skin in area (2).

  Courtesy of BMW OF NORTH AMERICA, INC.

• Level out leaked adhesive in the area (1) at all 4 corners of the roof outer skin (2) by spreading.

  No sharp edges should be left behind, otherwise the subsequent bonding of the front and rear windows could show a leakage.

• Spread excess adhesive in roof trim strip channel. The mounting surfaces of the mounting elements of the roof trim strips must not be coated with adhesive.
• Remove excess adhesive. For that do not use any cleaning agent or solvent!

Courtesy of BMW OF NORTH AMERICA, INC.

Installing the EMC screw 

• Drill the hole with a diameter of 4.2 mm after the adhesive completely hardens.
• Screw in the EMC screw.
  CONSUMABLE SPECIFICATION
  
  

  screw  EMC screw, SF Plus, M5x15

  83190301639

• Seal the EMC screw with the sealant.

• After the adhesive has hardened, insert an EMC screw (arrow) according to dimension a.

  Dimension a = 30 mm from the corner of the roof outer skin (measured directly).

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Sealing the roof outer skin 

• Seal the roof outer skin with sealant (1) on both side frames in a similar way to series production.

Courtesy of BMW OF NORTH AMERICA, INC.

Follow-up work