Engine Acoustic Cover Removal – BMW N52 6 Cylinder Engine

November 11, 2023

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Engine Acoustic Cover Removal – BMW N52 6 Cylinder Engine

The acoustic cover, also referred to as the ignition coil cover, is the plastic shield located on the top of the engine. It's job is to keep dirt and debris from entering the cylinder head cover and ignition coils. It also serves as an aesthetically pleasing trim cover that finishes off the engine compartment. Removing the acoustic cover on the N52 6-cylinder is required for just about every engine repair.

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Possible Symptoms: Not applicable for this repair.

This repair can be used on the following BMW models:

2004

325i Sedan, 325i Touring, 325xi Sedan, 328i Touring, 330i Sedan, 330i Touring, 330xi Touring, 523i Sedan, 523i Touring, 525i Sedan, 525i Touring, 525xi Sedan, 525xi Touring, 530i Sedan, 530i Touring, 530xi Sedan, 530xi Touring, 630i Convertible, 630i Coupe, 730Li Sedan, 730i Sedan, Z4 2.5si Roadster, Z4 3.0i Roadster, Z4 3.0si Roadster,

2005

130i 5 doors, 323i Sedan, 323i Touring, 325i Coupe, 325i Sedan, 325i Touring, 325xi Coupe, 325xi Sedan, 325xi Touring, 328i Convertible, 328i Coupe, 330i Convertible, 330i Coupe, 330i Sedan, 330i Touring, 330xi Coupe, 330xi Sedan, 330xi Touring, 523i Sedan, 523i Touring, 525i Sedan, 525i Touring, 525xi Sedan, 525xi Touring, 528i Sedan, 528xi Sedan, 530i Sedan, 530i Touring, 530xi Sedan, 530xi Touring, 630i Convertible, 630i Coupe, 730Li Sedan, 730i Sedan, Z4 2.5si Roadster, Z4 3.0i Roadster, Z4 3.0si Coupe, Z4 3.0si Roadster,

2006

128i Convertible, 128i Coupe, 130i 3 doors, 130i 5 doors, 323i Coupe, 323i Sedan, 323i Touring, 325i Convertible, 325i Coupe, 325i Sedan, 325i Touring, 325xi Coupe, 325xi Sedan, 325xi Touring, 328i Convertible, 328i Coupe, 328i Sedan, 328i Touring, 328xi Coupe, 328xi Sedan, 328xi Touring, 330i Convertible, 330i Coupe, 330i Sedan, 330i Touring, 330xi Coupe, 330xi Sedan, 330xi Touring, 523Li Sedan, 523i Sedan, 523i Touring, 525Li Sedan, 525i Sedan, 525i Touring, 525xi Sedan, 525xi Touring, 528i Sedan, 528xi Sedan, 530Li Sedan, 530i Sedan, 530i Touring, 530xi Sedan, 530xi Touring, 630i Convertible, 630i Coupe, 730Li Sedan, 730i Sedan, X3 2.5si SUV, X3 3.0i SUV, X3 3.0si SUV, X5 3.0si SUV, Z4 2.5si Roadster, Z4 3.0i Roadster, Z4 3.0si Coupe, Z4 3.0si Roadster,

2007

125i Convertible, 125i Coupe, 128i Convertible, 128i Coupe, 130i 3 doors, 130i 5 doors, 323i Convertible, 323i Coupe, 323i Sedan, 323i Touring, 325i Convertible, 325i Coupe, 325i Sedan, 325i Touring, 325xi Coupe, 328i Convertible, 328i Coupe, 328i Sedan, 328i Touring, 328xi Coupe, 328xi Sedan, 328xi Touring, 330i Convertible, 330i Coupe, 330i Sedan, 330i Touring, 330xi Coupe, 330xi Touring, 523Li Sedan, 523i Sedan, 523i Touring, 525Li Sedan, 525i Sedan, 525i Touring, 525xi Sedan, 525xi Touring, 528i Sedan, 528xi Sedan, 530Li Sedan, 530i Sedan, 530i Touring, 530xi Sedan, 530xi Touring, 630i Convertible, 630i Coupe, 730Li Sedan, 730i Sedan, X3 2.5si SUV, X3 3.0i SUV, X3 3.0si SUV, X5 3.0si SUV, Z4 2.5si Roadster, Z4 3.0i Roadster, Z4 3.0si Coupe, Z4 3.0si Roadster,

2008

125i Convertible, 125i Coupe, 128i Convertible, 128i Coupe, 130i 3 doors, 130i 5 doors, 323i Convertible, 323i Coupe, 323i Sedan, 323i Touring, 325i Convertible, 325i Coupe, 325i Sedan, 325i Touring, 325xi Coupe, 325xi Sedan, 325xi Touring, 328i Convertible, 328i Coupe, 328i Sedan, 328i Touring, 328xi Coupe, 328xi Sedan, 328xi Touring, 330i Convertible, 330i Coupe, 330i Sedan, 330i Touring, 523Li Sedan, 523i Sedan, 523i Touring, 525Li Sedan, 525i Sedan, 525i Touring, 528i Sedan, 528xi Sedan, 530Li Sedan, 530i Sedan, 530i Touring, 530xi Sedan, 530xi Touring, 630i Convertible, 630i Coupe, 730Li Sedan, 730i Sedan, X1 25iX SUV, X3 2.5si SUV, X3 3.0i SUV, X3 3.0si SUV, X5 3.0si SUV, Z4 2.5si Roadster, Z4 23i Roadster, Z4 3.0i Roadster, Z4 3.0si Coupe, Z4 3.0si Roadster, Z4 30i Roadster,

2009

125i Convertible, 125i Coupe, 128i Convertible, 128i Coupe, 130i 3 doors, 130i 5 doors, 323i Convertible, 323i Coupe, 323i Sedan, 323i Touring, 325i Convertible, 325i Coupe, 325i Sedan, 325i Touring, 325xi Coupe, 325xi Sedan, 325xi Touring, 328i Convertible, 328i Coupe, 328i Sedan, 328i Touring, 328xi Coupe, 328xi Sedan, 328xi Touring, 330i Convertible, 330i Coupe, 330i Sedan, 330i Touring, 520Li Sedan, 523Li Sedan, 523i Sedan, 523i Touring, 525Li Sedan, 525i Sedan, 525i Touring, 528Li Sedan, 528i Sedan, 528xi Sedan, 530Li Sedan, 530i Sedan, 530i Touring, 530xi Sedan, 530xi Touring, 630i Convertible, 630i Coupe, 730Li Sedan, 730i Sedan, X1 25iX SUV, X3 2.5si SUV, X3 28iX SUV, X3 3.0i SUV, X3 3.0si SUV, X5 3.0si SUV, Z4 23i Roadster, Z4 30i Roadster,

2010

125i Convertible, 125i Coupe, 128i Convertible, 128i Coupe, 130i 3 doors, 130i 5 doors, 323i Convertible, 323i Coupe, 323i Sedan, 323i Touring, 325i Convertible, 325i Coupe, 325i Sedan, 325i Touring, 325xi Coupe, 325xi Sedan, 325xi Touring, 328i Convertible, 328i Coupe, 328i Sedan, 328i Touring, 328xi Coupe, 328xi Sedan, 328xi Touring, 330i Convertible, 330i Coupe, 330i Sedan, 520Li Sedan, 523Li Sedan, 523i Sedan, 523i Touring, 525Li Sedan, 525i Touring, 528Li Sedan, 528i Sedan, 530Li Sedan, 530i Sedan, 530i Touring, 530xi Touring, 630i Convertible, 630i Coupe, 730Li Sedan, 730i Sedan, X1 25iX SUV, X3 2.5si SUV, X3 28iX SUV, X3 3.0i SUV, X3 3.0si SUV, X5 3.0si SUV, Z4 23i Roadster, Z4 30i Roadster,

2011

125i Convertible, 125i Coupe, 128i Convertible, 128i Coupe, 130i 3 doors, 130i 5 doors, 323i Convertible, 323i Coupe, 323i Sedan, 323i Touring, 325i Convertible, 325i Coupe, 325i Sedan, 325xi Coupe, 325xi Sedan, 325xi Touring, 328i Convertible, 328i Coupe, 328i Sedan, 328i Touring, 328xi Coupe, 328xi Sedan, 328xi Touring, 330i Convertible, 330i Coupe, 330i Sedan, 520Li Sedan, 523Li Sedan, 523i Sedan, 523i Touring, 528Li Sedan, 528i Sedan, 530Li Sedan, 530i Sedan, 530i Touring, 730Li Sedan, 730i Sedan, X1 25iX SUV, X3 28iX SUV, Z4 23i Roadster, Z4 30i Roadster,

2012

125i Convertible, 125i Coupe, 128i Convertible, 128i Coupe, 323i Convertible, 323i Coupe, 323i Touring, 325i Convertible, 325i Coupe, 325i Sedan, 325xi Coupe, 328i Convertible, 328i Coupe, 328i Touring, 328xi Coupe, 328xi Touring, 330i Convertible, 330i Coupe, 330i Touring, 520Li Sedan, 523Li Sedan, 530Li Sedan, 530i Sedan, 530i Touring, 730Li Sedan, 730i Sedan, X3 28iX SUV,

2013

125i Convertible, 125i Coupe, 128i Convertible, 128i Coupe, 325i Convertible, 325i Coupe, 325xi Coupe, 328i Convertible, 328i Coupe, 328xi Coupe, 330i Convertible, 530Li Sedan, 530i Sedan, 530i Touring, 730Li Sedan, 730i Sedan,

2014

530Li Sedan, 730Li Sedan, 730i Sedan,

2015

730Li Sedan, 730i Sedan,

Intermediate level repair.

Step 1 - Purchase Parts

You will need the following parts and supplies to perform this repair.

Cabin Filter

Cabin filters are something that is often overlooked in vehicle maintenance, but these filters are actually very important to both your comfort and health. Traditional cabin filters prevent pollen, dust, and other allergens from entering your vehicle's cabin, keeping your air as clean as possible. Cabin filters that feature an activated charcoal filter layer take it a step further to help eliminate unpleasant smells, especially useful in large cities or when passing smelly areas such as farms.

Step 2 - Repair Procedure

Unless otherwise noted, all vehicle repair step images in this article are copyrighted, and used courtesy of BMW of North America, Inc. .

The N52 six-cylinder engine was found in many different BMW vehicles. The following instructions may differ slightly depending on year and model.

Remove the left and right microfilter covers

Click to enlarge image

- In order to access the rear mounting screws on the acoustical cover, the filter housing covers must first be removed. Begin by turning the plastic locking clip (1) approximately 90 degrees counterclockwise until it releases from lower assembly.

- Use a flat blase screwdriver to release the metal locking clamp (2). Grasp the filter cover and remove from the vehicle.

View part diagram for this step

Pro Tip

Now is a great time to change out your cabin microfilters! See our parts list above for replacement microfilters for the N52 engine.

Release the locking clips on both air inlet assemblies and remove from the vehicle

Click to enlarge image

- Turn the plastic locking clips on both the left and right air inlet assemblies 90 degrees counterclockwise until they release.

- Remove the torx screw (2) on both assemblies. Grasp the assemblies and remove from the vehicle.

View part diagram for this step

Unfasten the screws anchoring the acoustic cover. Remove the oil filler cap.

Click to enlarge image

- Unfasten the mounting screws (1) and (3).

- Remove the oil filler cap (2).

- Grasp the acoustic cover and remove from the vehicle.

View part diagram for this step