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Home >> BMW >> 2018 >> M4 2D Convertible, Automatic DCT Trans >> Repair and Diagnosis >> Body & Frame >> Sun Roof/T-Top/Convertible Top >> Sunroof & Convertible Top - Repair -- M4 (F82 & F83) >> 54 37 Retractable Hardtop (M4 Convertible) >> Hardtop emergency opening (M4 Convertible)

Hardtop emergency opening (M4 Convertible)

Special tools required: 

Necessary preliminary tasks: 

IMPORTANT: Always perform the emergency opening procedure with the aid of an assistant.

Manual soft top movement only with ignition off!

Danger of damage to hydraulic valves.

The applied force must always be even on the left and right otherwise the linkage will bend.

Always execute all movements of the roof module with the assistance of a second person.

Danger of injury by trapping!

Unclip the protective cap.

Fit the special tool 54 0 163 in conjunction with 13 5 250.

Drive out pin.

G06181341Courtesy of BMW OF NORTH AMERICA, INC.

Turn the bolts counterclockwise to open the locks.

IMPORTANT: Risk of damage!

Lower the bolts again after completing the opening process.

Turn back the bolts a few degrees as required.

G10206502Courtesy of BMW OF NORTH AMERICA, INC.

Open tailgate.

Take out luggage compartment floor trim panel (1).

Fold the cover for luggage compartment upwards.

G10206434Courtesy of BMW OF NORTH AMERICA, INC.

Feed out control unit (1).

Open the shutoff valve on the hydraulic unit by three turns using a hexagon socket (SW4).

NOTE: Shutoff valve is located under a plastic funnel.

System is now de-pressurized and can be moved manually.

Fold the luggage compartment cover downwards.

Close tailgate.

G10206435Courtesy of BMW OF NORTH AMERICA, INC.

Unlocking the coupling lock: 

Turn the hydraulic cylinder (1) toward the passenger compartment.

Mount the special tool 54 0 161 onto the piston rod.

G06181346Courtesy of BMW OF NORTH AMERICA, INC.

Tip the special tool 54 0 161 upward.

This causes the coupling lock (1) to jump over the dead center.

Then slide on the coupling lock (1).

G06181347Courtesy of BMW OF NORTH AMERICA, INC.

To fold up the roof shells, position one person on the left and one on the right side.

It is imperative that you hold the front and rear roof shells at the same time.

Move the roof shells carefully and evenly.

G06181348Courtesy of BMW OF NORTH AMERICA, INC.

Join the roof shells evenly and without tilting.

G06181349Courtesy of BMW OF NORTH AMERICA, INC.
NOTE: Have the special tool 54 0 240 ready.

Manually open the rear module.

G06181350Courtesy of BMW OF NORTH AMERICA, INC.

Clip the special tool 54 0 240 onto hydraulic cylinder (1) on left and right.

IMPORTANT: The openings on the assembly supports must be pointed in the direction of travel.
G09862774Courtesy of BMW OF NORTH AMERICA, INC.
NOTE: Any additional luggage in the trunk must be removed.
IMPORTANT: Note the weight of the roof shells!

It is imperative that you only grasp the front roof shell when lowering the roof shells.

G06181352Courtesy of BMW OF NORTH AMERICA, INC.

Carefully set down the roof shells.

NOTE: Remove special tool 54 0 240.

Use appropriate force to close the rear module.

G06181353Courtesy of BMW OF NORTH AMERICA, INC.
IMPORTANT: The soft top must not  be moved any further after emergency opening.

The vehicle should no longer be moved to avoid vibrations.

Roof shells which are not  locked may cause irreparable damage.