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Home >> BMW >> 2011 >> 335i 2D Convertible, Standard >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 35 (Body Equipment - Repair - E90) >> Front Lid Insulation Lining >> 51 48 060 Removing and installing/replacing sound insulation in left or right front door

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

WARNING: This page is about a different variant/trim than selected.
IMPORTANT: NOTES ON 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: 

Position of sealing bead (1).

Feed cable (3) out of sound insulation (2).

Fig 1: Identifying Sealing Bead, Feed Cable And Sound Insulation
G06854193Courtesy 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: Identifying Suitable Sharp Cutting Tool And Sealing Bead
G06854194Courtesy 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 rope (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/cm2

Manual contact pressure: approx. 10 N/cm2

NOTE: Firm thumb pressure has approx. 30 N/cm2
NOTE: Position of butyl rope (1) on sound insulation (2).
Fig 3: Identifying Butyl Rope Position On Sound Insulation
G06854195Courtesy of BMW OF NORTH AMERICA, INC.
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
G04749846Courtesy of BMW OF NORTH AMERICA, INC.