51 48 070 Removing and installing/replacing sound insulation on left or right rear door

WARNING: This page is about a different car, the 2010 BMW 550i, 2009 BMW 550i, and 2008 BMW 550i. However, it is still accessible from the selected car via links, so may be relevant.

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 REAR DOOR TRIM PANEL

Unclip cable holder (1).

Position of sealing bead (2).

Feed out wires in area (4) and remove sound insulation (3).

Installation:

If necessary, replace cable holders (1).

Fig 1: Feeding Wires Out Of Sound Insulation

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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: Identifying Sealing Bead Of Sound Insulation In Area

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Clean bonding area with adhesive remover.

Air drying time: 1 minute

IMPORTANT: Adhesive areas must be dry and free of dust and grease.
After cleaning, do not touch the adhesive areas with bare hands.

Lay single row of 6 mm dia. butylene tape or double row of 3 mm dia. tape 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

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

IMPORTANT: Do not damage Bowden cable (2) and lock knob control rod (3).

Fig 3: Identifying Bowden Cable And Lock Knob Control Rod

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NOTE: Position of butyl cord (1) on inner door panel.

Fig 4: Identifying Butylene Tape On Sound Insulation

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

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

Fig 5: Identifying Sound Insulation And Butylene Tape

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