41 00... Installing A Cavity Acoustic Baffle (Not Expanded)

2013 BMW 128i 2D Convertible, Eng CD N52, Standard TransSECTION 41 00... Installing A Cavity Acoustic Baffle (Not Expanded)
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The following repair represents replacement of a cavity acoustic baffle.

Before these work steps, prepare the new part so that it is ready to install (adapting, cutting to size, applying welding primer etc.).

Sand contact surface of cavity acoustic baffle (1) with coarse-grained abrasive paper (grain 50 - 100).

Clean contact surface (1) with spirit.

Apply a bead approx. 15 mm high of window glass adhesiveΒ  to contact surface (1). Refer to 41 00... Overview Of Expendable MaterialsΒ .

Attach cavity acoustic baffle in specified position (see old part).

Fit, secure and weld up new part.

Fig 1: Identifying Contact Surface Of Cavity Acoustic Baffle
G04726778Courtesy of BMW OF NORTH AMERICA, INC.
RENDER: 1.0x

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When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

  • β€’ You smell fuel, burning insulation, or see smoke.
  • β€’ Brakes feel soft, pull hard to one side, or make grinding noises.
  • β€’ The engine overheats, stalls repeatedly, or misfires under load.
  • β€’ You are missing required tools, torque specs, or safe lifting equipment.
  • β€’ You are not confident in the next step or safety outcome.