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Home >> BMW >> 2018 >> 440i 2D Convertible >> Repair and Diagnosis >> Body & Frame >> Sun Roof/T-Top/Convertible Top >> Sunroof & Convertible Top - Repair (F32, F33 & F36) >> 54 37 Retractable Hardtop >> Replace rear roof shell (4' Series Convertible)

Replace rear roof shell (4' Series Convertible)

Necessary preliminary work: 

Installation note: 

Move soft top into service position.

Move soft top so that angle of the hinges is not  ≤90°.

CAUTION: Risk of damage! Pressure in hydraulic system drops and soft top loses its position.

Support rear roof shell to soft top cover with suitable auxiliary materials.

Auxiliary materials must lie over wide area and if possible over entire length.

Rear roof shell is supported by auxiliary materials on soft top cover.

Roof shells block each other.

G06181108Courtesy of BMW OF NORTH AMERICA, INC.

Unscrew left and right nuts (1).

Tightening torque 54 37 17AZ .

Remove ground strap.

G06181217Courtesy of BMW OF NORTH AMERICA, INC.

Roof shell, left side: 

Unlock plug connections (1) on aerial amplifier and disconnect.

Unclip wiring harness.

Unlock plug connection (2) on wave trap and disconnect.

G06181218Courtesy of BMW OF NORTH AMERICA, INC.

Roof shell, right side: 

Unlock plug connection (1) on wave trap and disconnect.

G06181219Courtesy of BMW OF NORTH AMERICA, INC.

Unclip wiring harness (1) from roof shell.

Installation note: 

If necessary, replace faulty clips.

G06181220Courtesy of BMW OF NORTH AMERICA, INC.
NOTE: A second person is required to help in removing the roof shell.
CAUTION: Lock barrel screws with a flat open-end spanner.

Mark screws (1) on left and right.

Release screws (1).

Tightening torque 54 37 06AZ .

Remove roof shell.

Do not  adjust barrel screws on roof shell.

G06181051Courtesy of BMW OF NORTH AMERICA, INC.
NOTE: The work scope for removing and installing the roof shell ends here.

Replacement only: 

Drill out rivets (2).

Remove clamps (1).

G06181222Courtesy of BMW OF NORTH AMERICA, INC.

Remove clamps (1) from roof shell.

G06181223Courtesy of BMW OF NORTH AMERICA, INC.

Right side: 

Unlock plug connection (1) and disconnect.

Release nut (2) and remove wave trap.

G06181224Courtesy of BMW OF NORTH AMERICA, INC.

Left side: 

Unlock plug connection (1) and disconnect.

Release nut (2) and remove aerial amplifier.

Unlock plug connection (3) and disconnect.

Release nut (4) and remove wave trap.

G06181225Courtesy of BMW OF NORTH AMERICA, INC.

Measure heights of all barrel screws (1) to roof shell with a depth gauge and note down.

Carry over adjustment to new roof shell.

Installation note: 

Insert barrel screws with Loctite.

Remove GASKET  (2).

G10206812Courtesy of BMW OF NORTH AMERICA, INC.

Check BODY GAP DIMENSION for soft top.