51 48... Removing and installing/replacing sound insulation in front door, left or right

Remove rear door trim panel,

refer to 51 41 000 REMOVING AND INSTALLING LEFT OR RIGHT FRONT DOOR TRIM PANEL .

If necessary, remove airbag module in front door,

refer to SIDE AIR BAG MODULE .

Unfasten plug connection (1).

Release screws (2) and remove speaker unit.

Remove inside door handle on front door,

refer to 51 21 225 REMOVING AND INSTALLING OR REPLACING INSIDE DOOR OPENER IN LEFT OR RIGHT FRONT DOOR .

Fig 1: Unfastening Plug Connection & Releasing Screws

CAUTION: Do not kink fiber optics cable. The bending radius of the fiber optics cable must not be less than 20 mm.

Detach central light source (1) from retainer (2).

Disconnect plug connection (3) and detach fiber optics cable (4) from central light source.

Fig 2: Detaching Fiber Optics Cable From Central Light Source

Release screws (1) and remove holder for central light source (2).

Fig 3: Removing Central Light Source Holder

Release cable tie (1) on wiring harness (2).

Disconnect plug connections (4).

Fig 4: Releasing Cable Tie On Wiring Harness

Release expansion rivets (1).

Fig 5: Releasing Expansion Rivets

Using special tool 00 9 317 (trim panel wedge), lever out sealing bead (1) of sound insulation (2) completely or if necessary partially.

Fig 6: Removing Sealing Bead Of Sound Insulation

Installation:

In event of replacement or partial detachment, lay butylene tape (sourcing reference: BMW Parts Service) on inner door plate or sound insulation.
Seal cable penetrations with butylene tape.

NOTE: Position of butylene tape (1) on inner door plate.

Fig 7: Identifying Position Of Butylene Tape On Inner Door Plate

NOTE: Position of butylene tape (1) on sound insulation (2).

Fig 8: Identifying Position Of Butylene Tape On Sound Insulation

CAUTION: When working with adhesive cleaners in enclosed rooms:
Ensure room is well ventilated.
The adhesive areas must be dry and free from dust and grease.
After cleaning, do not touch the adhesive areas with bare hands.

If necessary, clean the specified adhesive area with adhesive cleaner (sourcing reference: BMW Parts Service).

Air drying time: 1 minute

Lay butylene tape with a diameter of 6 mm (sourcing reference: BMW Parts Service) in specified adhesive area.

Heat butylene tape (hot air blower) and press down firmly on sound insulation all round.

Contact pressure with hand roller: approx. 30 N/cm²

Manual contact pressure: approx. 10 N/cm²

NOTE: Firm thumb pressure has approx. 50 N/cm²