The aFe 31-10226 replaces the original airbox filter in the specified applications with oil-free synthetic media. The exact current manufacturer identifies 335i F30 2012–2015 and base M2 F87 2016–2018 with the N55. Exact per-part BMW specialists additionally document the retained N55 335i GT/xDrive, 435i coupe/Gran Coupe/xDrive and M235i/xDrive rows at their existing individual bounds. Missing ActiveHybrid 3 2013–2015 and M135i 2013–2016 rows are restored from exact retailer application lists within this N55 housing family, without creating engine or drivetrain pseudo-trims. The M135i year start is conservatively bounded to the corroborated 2013 table rather than a different retailer’s 2012 start; no separate unqualified xDrive row is created. Some retailer aggregate tables extend base M2 into 2019, but the current exact manufacturer and N55-specific specialist entry end at 2018. No extension to the S55 M2 Competition, newer B58 cars or an unspecified replacement airbox is inferred.
| Detail | Value |
|---|---|
| BMW 335i / M2 N55 | Manufacturer F30 2012–2015 / F87 2016–2018; retain original individual xDrive bounds |
| BMW 335i GT / 435i / M235i families | Existing N55 body and xDrive model scopes retained individually; no common blanket year range |
| ActiveHybrid 3 | Restored 2013–2015 exact specialist application, original N55 housing required |
| M135i | Restored 2013–2016 exact specialist application; earlier market-specific start held |
| Generation boundary | No retailer 2019 base-M2 extension or S55 Competition / B58 housing interchange inferred |
31-10226: verify the exact engine, original element and housing. Model or trim names alone do not establish all-engine interchangeability.
| Detail | Value |
|---|---|
| Manufacturer Part Number | 31-10226 |
| Media | Pro DRY S; oil-free synthetic media |
| Configuration | One OE-replacement air-filter element; original housing retained |
| Pleat description | Rounded open pleats; no verified numeric pleat depth on the exact current primary |
| Frame / seal | Polyurethane perimeter frame; progressive bump seal |
| Service | Washable oil-free synthetic media. Use the specified aFe POWER CLEANER, rinse appropriately and dry fully; do not apply air-filter oil. The current exact manufacturer specifies three layers of oil-free synthetic media. |
| Flow statement | The current exact manufacturer publishes no numerical airflow-gain or efficiency figure for this dry element. Retailer 66 percent/99.2 percent fields and another oiled filter’s 46 percent claim are not manufacturer-certified current dry-element results or a power guarantee. |
| Emissions | Exact manufacturer page states this filter does not require a CARB EO number; other modifications are not certified by that statement |
aFe Power develops application-specific intake, filtration, exhaust, cooling, tuning, suspension, drivetrain, and truck-performance components supported by product testing and documented installation requirements.
One Pro DRY S OE-replacement air-filter element for the verified housing and engine application described here; this is not a complete intake system.
Which application should I verify?The exact current manufacturer identifies 335i F30 2012–2015 and base M2 F87 2016–2018 with the N55. Exact per-part BMW specialists additionally document the retained N55 335i GT/xDrive, 435i coupe/Gran Coupe/xDrive and M235i/xDrive rows at their existing individual bounds. Missing ActiveHybrid 3 2013–2015 and M135i 2013–2016 rows are restored from exact retailer application lists within this N55 housing family, without creating engine or drivetrain pseudo-trims. The M135i year start is conservatively bounded to the corroborated 2013 table rather than a different retailer’s 2012 start; no separate unqualified xDrive row is created. Some retailer aggregate tables extend base M2 into 2019, but the current exact manufacturer and N55-specific specialist entry end at 2018. No extension to the S55 M2 Competition, newer B58 cars or an unspecified replacement airbox is inferred.
Is the Pro DRY S media oiled?Washable oil-free synthetic media. Use the specified aFe POWER CLEANER, rinse appropriately and dry fully; do not apply air-filter oil. The current exact manufacturer specifies three layers of oil-free synthetic media.
Does the flow percentage guarantee more engine power?The current exact manufacturer publishes no numerical airflow-gain or efficiency figure for this dry element. Retailer 66 percent/99.2 percent fields and another oiled filter’s 46 percent claim are not manufacturer-certified current dry-element results or a power guarantee.
How does this filter seal?Its progressive bump seal and full polyurethane perimeter frame conform to the original housing. The manufacturer says separate filter gaskets or sealants are not required; the existing housing must still close and secure correctly.
Are a hose coupler and cleaning kit supplied?The exact listing identifies an OE-replacement filter. A generic Coupler Included field does not establish a separate hose package; no airbox, tube, sensor, cleaner or oil bottle is documented as supplied.
Does this fit every M2 or later BMW turbo engine?No. The documented base M2 is the N55 F87 application through 2018. A retailer aggregate 2019 row does not approve S55 Competition, S58 or B58 housings, and the restored hybrid/M135i rows retain their own exact source bounds.
When should I clean it?Inspect according to actual dust exposure and restriction. Washable oil-free synthetic media. Use the specified aFe POWER CLEANER, rinse appropriately and dry fully; do not apply air-filter oil. The current exact manufacturer specifies three layers of oil-free synthetic media. Use low-pressure rinse from the clean side toward the dirty side, let the element dry naturally before reinstalling. Do not use heat, compressed air or any filter oil. Do not treat an older general-care mileage example as a guaranteed interval for every vehicle or environment.
No vehicle-specific installation PDF or numeric airbox torque is linked on this exact manufacturer page. Follow the original housing service procedure and the correct oil-free Pro DRY S maintenance directions. Read the manufacturer media maintenance guidance.
31-10226: verify the original filter interface before operation.
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