51 48 070 Removing And Installing/Replacing Sound Insulation On Left Or Right Rear Door

Necessary preliminary tasks:

Remove rear door trim panel . See 51 41 017 REMOVING AND INSTALLING/REPLACING COVER ON DOOR HANDLE AT FRONT (PASSENGER SIDE) LEFT OR RIGHT .

If necessary, disconnect plug connection (1).

Using a scalpel, cut through sealing bead (3) of sound insulation (4) completely or if necessary partially.

Feed wires (2) out of sound insulation (4).

Installation:

Ensure clean bonding and that there are no leaks at sealing bead.

Fig 1: Identifying Plug Connection And Sound Insulation

Courtesy of BMW OF NORTH AMERICA, INC.

Installation:

In case of replacement or partial detachments, lay butylene tape (sourcing reference: BMW Parts Service) depending on the conditions on inner door panel or sound insulation.

Seal cable penetrations with butylene tape.

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

Fig 2: Identifying Butylene Tape On Sound Insulation

Courtesy of BMW OF NORTH AMERICA, INC.

NOTE: A marking (2) is provided all round on the sound insulation (1).
Butylene tape (3) rests on or inside the marking (2).

Fig 3: Identifying Sound Insulation

Courtesy of BMW OF NORTH AMERICA, INC.

Clean adhesive area on inner door panel with adhesive cleaner (sourcing reference: BMW Parts Service).

Air drying time: 1 minute

IMPORTANT: Adhesive areas must be dry and free of dust and grease.
Once it has been cleaned, do not touch the adhesive area with bare hands.

Lay 6 mm dia. butylene tape in a single row (sourcing reference: BMW Parts Service) in specified adhesive area on acoustic insulation.

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