54 34 340 Removing and installing/replacing cowl panel gasket

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Necessary preliminary tasks:

Remove COWL PANEL TRIM .

WARNING: Soft top becomes pressureless without a warning signal.
For all repair work, secure soft top with a suitable support tool against collapsing.
Ensure soft top is supported in the middle.
Ignition must remain switched off during the repair work.
Failure to comply with this instruction may result in the hydraulic valves incurring preliminary damage.

Unbutton cowl panel gasket left and right out of roof frame.

Fig 1: Removing Cowl Panel Trim

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Installation note:

Make sure seal (2) is correctly seated on seal carrier (1).

Spray sealing carrier (1) with assembly fluid.

Fig 2: Identifying Seal Seated On Seal Carrier

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Release screws.

Installation note:

Observe tightening sequence (1-5).

Tightening torque 54 34 12AZ .

Insert screws with Loctite.

Remove cowl panel gasket with clamping strip.

Detach cowl panel gasket from clamping strip.

Fig 3: Cowl Panel Gasket Screws Tightening/Loosening Sequence

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Installation note:

Adjust clamping strip (1) to the soft top latch lock striker (2).

Prepare a spacer or use a drill with a corresponding diameter.

A. = 9 mm

Fig 4: Identifying Clamping Strip To Soft Top Latch Lock Striker

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Installation note:

Check the transition and offset of the gaskets at the sealing points (1 and 2).

Run a function check.

Check and adjust (if applicable) the setting of the side windows. See 51 32 154 ADJUSTING LEFT OR RIGHT FRONT SIDE WINDOW and 51 37 154 ADJUSTING REAR LEFT OR RIGHT SIDE WINDOW .

Fig 5: Identifying Sealing Points

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Installation note:

The cowl panel gasket (1) must be aligned with the roof frame gasket (2) in the retraction area of the side window.

Distance between gaskets = 0.5 mm.

Side window must run into cowl panel gasket correctly and rest in cowl panel gasket over entire width.

Adjust gasket over spacer plates .

Fig 6: Locating Cowl Panel Gasket

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Installation note:

Adjusting in y-direction:

IMPORTANT: Do not release both nuts (1, 2) at the same time.

Loosen the corresponding nut (1, 2) at the rail of the gasket of the center roof frame. Remove or add the spacer and tighten the nut (1, 2).

Tightening torque 54 34 29AZ .

Adjusting in z-direction:

IMPORTANT: Do not release both nuts (1, 2) at the same time.

Loosen the corresponding nut (1, 2) at the rail of the gasket of the center roof frame. Position the rail for the center roof frame gasket and tighten the nut (1, 2).

Tightening torque 54 34 29AZ .

Fig 7: Identifying Center Roof Frame Nuts

Courtesy of BMW OF NORTH AMERICA, INC.