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Pro DRY S replacement with the correct engine and housing
The aFe 31-10227 replaces the original airbox filter in the specified applications with oil-free synthetic media. The exact manufacturer identifies BMW X1 E84, 528i F10 and Z4 E89 within a combined 2012β2016 N20 2.0L family. Existing individual 528i and 528i xDrive 2012β2016, X1 sDrive28i/xDrive28i 2013β2015 and Z4 sDrive28i 2012β2016 rows retain their original bounds. The original Z4 sDrive30i 2009β2011 N52 3.0L six-cylinder row is explicitly listed by exact FCP Euro and JEGS sources, so the narrower current N20 headline is not used to delete that supported older housing application. Some European tables start the X1 and Z4 N20 family earlier; no new market-specific year range is inferred here. The primary overview contains cotton-gauze wording while its dedicated Pro DRY S paragraph specifies non-oiled synthetic media; the synthetic dry specification governs maintenance, not a retailer pre-oiled field.
Key Features
- Oil-free synthetic filtration media.
- 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.
- Rounded open pleats provide usable filter area and dust-holding capacity.
- Full polyurethane perimeter frame and progressive bump seal.
- No numerical flow-gain, filtration-efficiency, pleat-depth or pleat-count value is certified on the exact current manufacturer page. Older retailer values do not establish a current boxed-revision test result or guaranteed engine-power gain.
Fitment
| Detail | Value |
|---|---|
| BMW 528i / 528i xDrive F10 | Original 2012β2016 N20 2.0L application bounds retained |
| BMW X1 E84 | Original sDrive28i and xDrive28i 2013β2015; no extension to later F48 merely by X1 name |
| BMW Z4 E89 N20 | Original sDrive28i 2012β2016 retained |
| BMW Z4 E89 N52 | Original sDrive30i 2009β2011 explicitly supported by exact FCP Euro/JEGS entries; not certified solely from the N20 headline |
| Media source conflict | Current overview cotton wording and retailer pre-oiled field conflict with dedicated oil-free synthetic Pro DRY S specification |
31-10227: verify the exact engine, original element and housing. Model or trim names alone do not establish all-engine interchangeability.
Specifications
| Detail | Value |
|---|---|
| Manufacturer Part Number | 31-10227 |
| 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 | No numerical flow-gain, filtration-efficiency, pleat-depth or pleat-count value is certified on the exact current manufacturer page. Older retailer values do not establish a current boxed-revision test result or guaranteed engine-power gain. |
| Emissions | Exact manufacturer page states this filter does not require a CARB EO number; other modifications are not certified by that statement |
What's Included
- One Pro DRY S OE-replacement air-filter element.
- No complete airbox, intake tube, sensor, separate coupler kit or filter-service supplies are documented as included.
About aFe Power
aFe Power develops application-specific intake, filtration, exhaust, cooling, tuning, suspension, drivetrain, and truck-performance components supported by product testing and documented installation requirements.
Related Parts
- Browse aFe Power filter configurations; compare the exact original housing and engine.
- Manufacturer filter-media maintenance guidance; follow the oil-free Pro DRY S cleaning routine.
Frequently Asked Questions
What is the 31-10227?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 manufacturer identifies BMW X1 E84, 528i F10 and Z4 E89 within a combined 2012β2016 N20 2.0L family. Existing individual 528i and 528i xDrive 2012β2016, X1 sDrive28i/xDrive28i 2013β2015 and Z4 sDrive28i 2012β2016 rows retain their original bounds. The original Z4 sDrive30i 2009β2011 N52 3.0L six-cylinder row is explicitly listed by exact FCP Euro and JEGS sources, so the narrower current N20 headline is not used to delete that supported older housing application. Some European tables start the X1 and Z4 N20 family earlier; no new market-specific year range is inferred here. The primary overview contains cotton-gauze wording while its dedicated Pro DRY S paragraph specifies non-oiled synthetic media; the synthetic dry specification governs maintenance, not a retailer pre-oiled field.
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?No numerical flow-gain, filtration-efficiency, pleat-depth or pleat-count value is certified on the exact current manufacturer page. Older retailer values do not establish a current boxed-revision test result or guaranteed engine-power gain.
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.
Must the older six-cylinder Z4 row be deleted because the heading says N20?No. Exact per-part FCP Euro and JEGS entries identify the older E89 sDrive30i N52 application. Verify its original housing; a short current product heading is not proof that an independently documented older application is physically incompatible.
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.
Installation Instructions
- Read the exact manufacturer product information for 31-10227 and the original vehicle airbox service procedure.
- With the engine off and cool, compare the new filter and original element, including the sealing interface. Resolve an engine or housing mismatch before installation.
- Open the original housing according to its service procedure, remove the old element and keep debris out of the clean intake path. Clean the housing seat.
- Seat the polyurethane frame evenly without folding the bump seal or adding sealant. Close and secure the original housing and inspect all its attachments.
- 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.
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.
31-10227: verify the original filter interface before operation.
California Proposition 65 Warning
- This product can expose you to chemicals including lead and phthalates, which are known to the State of California to cause cancer and reproductive harm. For more information go to www.P65Warnings.ca.gov.
- California Proposition 65 warning: this product can expose you to chemicals known to the State of California to cause cancer and reproductive harm.
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