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

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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).

After every repair, check that the sound insulation is water-tight (water ingress).

Necessary preliminary tasks

Remove DOOR TRIM PANEL

Release speaker cable (1).

Guide speaker cable (1) through sound insulation (2).

Position of sealing bead (3).

Fig 1: Identifying Speaker Cable With Sound Insulation And Sealing Bead

Courtesy of BMW OF NORTH AMERICA, INC.

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 Sealing Bead Of Sound Insulation Using Sharp Cutting Tool

Courtesy of BMW OF NORTH AMERICA, INC.

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 cord (sourcing reference: BMW Parts Department) in specified adhesive area.

Heat butyl cord (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 cord (1) on sound insulation (2).

Fig 3: Identifying Butyl Cord On Sound Insulation

Courtesy of BMW OF NORTH AMERICA, INC.

NOTE: There is a 2 cm wide edge (2) all round on sound insulation (1).

Stick on butyl cord (3) centrally in this area.

Fig 4: Identifying 2 cm Wide Edge On Sound Insulation And Butyl Cord

Courtesy of BMW OF NORTH AMERICA, INC.