51 24 004 Adjusting Rear Lid Lock (Lower Section Of Rear Lid Lock)

WARNING: This page is about a different car, the 2005 BMW 760Li, 2004 BMW 760i, 2004 BMW 760Li, and 2003 BMW 760Li. However, it is still accessible from the selected car via links, so may be relevant.

NOTE: Rear lid must be correctly adjusted before adjustment of Soft Close Automatic.

If necessary, adjust rear lid to fit.

IMPORTANT: Once plug connection to servomotor has been disconnected, rear lid can only be opened with central key (1). Button (2) then does not function.

Insert central key (1) in lock cylinder.

Fig 1: Identifying Central Key And Button

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NOTE: This illustration, see Fig 2, displays the side view of the eccentric pin in the lower section of the trunk lid lock.

Fig 2: Identifying Eccentric Pin In Lower Section Of Trunk Lid Lock

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Lock rear lid lock upper section with a screwdriver.

Eccentric pin of rear lid lock lower section must now be at bottom dead center.

Fig 3: Locking Rear Lid Lock Upper Section With Screwdriver

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Open flap in luggage compartment panel on right. Refer to 51 47 172 REMOVING AND INSTALLING/REPLACING FLAP IN LUGGAGE COMPARTMENT TRIM, LEFT OR RIGHT .

Unfasten plug connection (1) and disconnect.

The eccentric pin now remains at bottom dead center even after the rear lid lock upper section has been unlocked.

Fig 4: Locating Plug Connection

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Turn central key in lock cylinder to right, thereby unlocking rear lid lock upper section.

IMPORTANT: Rear lid lock upper section must be unlocked before each closing of rear lid (risk of damage).

Fig 5: View Of Lock Cylinder (Locked/Unlocked)

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Adjustment Of Soft Close Automatic:

Check fulcrum pads on lower section of rear lid lock for damage and replace if necessary.
Close rear lid.
Check height of rear lid to side panels.

Fig 6: Locating Fulcrum Pads

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Open rear lid.

Screw in rubber buffers (1) on left/right completely.

Fig 7: Installing Rubber Buffers

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Lever out caps (1) from trim (2).

Fig 8: Identifying Caps In Trim

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Height Adjustment Of Trunk Lid:

NOTE: For purposes of clarity, shown here without trim for "tail panel at top".

Slacken screws (1 to 3).
Move rear lid lock lower section fully upwards.
Tighten down screws (1 to 3) again.
Close rear lid.
Measure and note down gap dimensions.
Open rear lid.
Slacken screws (1 to 3) and lower rear lid lock lower section by difference from desired dimensions.
Tighten down screws (1 to 3).
Check adjustment and repeat if necessary.
Note down adjusted gap dimensions.

Tightening torque, refer to 51 24 6AZ in BODY EQUIPMENT - TIGHTENING TORQUES .

Fig 9: Moving Rear Lid Lock Lower Section

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Contact Pattern Test:

Coat rear lid lock upper section with grease.

Fig 10: Coating Rear Lid Lock Upper Section

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IMPORTANT: Observe screw length, use longer screws if necessary.

Correcting Contact Pattern:

Correction is performed by fitting or removing shims underneath screws (1 to 3).

Remove trim for tail panel at top. Refer to 51 46 050 REMOVING AND INSTALLING/REPLACING TRIM FOR REAR PANEL AT TOP .
Release screws (1 to 3).
Tilt rear lid lock lower section forwards.
Carry out correction.
Check contact pattern again, repeat adjustment if necessary.

Tightening torque, refer to 51 24 6AZ in BODY EQUIPMENT - TIGHTENING TORQUES .

Fig 11: Identifying Shims And Screws

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Open rear lid.

Turn rubber buffers (1) until closed rear lid rests on buffers (1) on left/right.

IMPORTANT: Rear lid must not be higher than set gap dimensions as otherwise there will be a distortion of height adjustment!

Re-establish plug connection for rear lid lock lower section.

Fig 12: View Of Rubber Buffers

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Remove central key (1) from lock cylinder.

Press button (2).

Eccentric pin of rear lid lock lower section turns to top dead center.

Close rear lid and check function of Soft Close Automatic, repeat if necessary.

Add final details to vehicle.

Fig 13: Locating Central Key And Button

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