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

Remove rear door trim, refer to 51 42 000 REMOVING AND INSTALLING REAR LEFT OR RIGHT DOOR TRIM PANEL .

If necessary, remove airbag module in rear door, refer to AIR BAG RESTRAINT SYSTEMS .

Unfasten plug connection (1).

Release screws (2) and remove speaker unit.

Fig 1: Releasing Screws (2) And Remove Speaker Unit

Remove inside door handle on rear door, refer to 51 22 225 REMOVING AND INSTALLING/REPLACING INSIDE DOOR OPENER OF REAR LEFT OR RIGHT DOOR .

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 Central Light Source (1), Disconnecting Plug Connection (3) And Detaching Fiber Optics Cable (4) From Central Light Source

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

Fig 3: Removing Holder For Central Light Source

Release cable ties (1) on wiring harness (2) and on cable (3).

Disconnect plug connection (4).

Fig 4: Releasing Cable Ties (1) On Wiring Harness (2) And On Cable (3) And Disconnecting Plug Connection

Release expansion rivets (1) and (2).

Release screw (3) and unhook cable (4).

Fig 5: Releasing Expansion Rivets, Screw And Unhook Cable

Release expansion rivets (1).

Fig 6: 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 7: Identifying (Trim Panel Wedge)

Installation:

In event of replacement or partial detachment, lay butylene tape on inner door plate or sound insulation.

Seal cable penetrations with butylene tape.

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

Fig 8: Positioning Of Butylene Tape On Inner Door Plate

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

Fig 9: Positioning Of Butylene Tape On Sound Insulation

E38 long version only:

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

Fig 10: Positioning Of Butylene Tape (1) On Inner Door Plate

E38 long version only:

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

Fig 11: Positioning 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.

Air drying time: 1 minute.

Lay butylene tape with a diameter of 6 mm 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 .