51 48 060 Removing and installing/replacing sound insulation in left or right front door

IMPORTANT: INSTRUCTIONS FOR SOUND INSULATION are an essential part of these repair instructions and must be followed without fail.
Do not detach sound insulation in jerks (risk of damage).
It is essential to ensure the sound insulation is watertight (water intrusion) every time any repair work has been carried out.

Necessary preliminary tasks

Remove DOOR TRIM PANEL

If necessary, disconnect plug connection (1).

Position of sealing bead (2).

Feed cable (3) out of sound insulation (4) and remove sound insulation (4).

Fig 1: Identifying Sound Insulation, Cable, Plug Connection And Sealing Bead

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IMPORTANT: When cutting through sealing bead (1), do not damage sound insulation (2) and if necessary cable.

With a suitable sharp cutting tool (3) cut through sealing bead (1) of sound insulation (2) in the area to be detached.

Fig 2: Cutting Sound Insulation Sealing Bead

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Clean bonding area with adhesive remover (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.

NOTE: Replacement:

Lay 6 mm dia. butyl rope (sourcing reference: BMW Parts Department) 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. 20 N/cm ²

Manual contact pressure: approx. 10 N/cm ²

NOTE: Firm thumb pressure has approx. 30 N/cm ²

NOTE: Position of butyl rope (1) on sound insulation (2).

Fig 3: Identifying Sound Insulation And Butyl Rope

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NOTE: A marking (2) is provided all round on the sound insulation (1).

Butyl rope (3) rests on or inside the marking (2).

Fig 4: Identifying Sound Insulation, Butyl Rope, And Marking

Courtesy of BMW OF NORTH AMERICA, INC.