2018 BMW X3 engine air filter: Sizes & Replacement Parts
turbo: WIX WA10889 / Purolator A31512; I4 turbo: WIX WA10889. Pick the engine tab that matches your car before ordering.
Looking for the cabin / A/C air filter instead? 2018 BMW X3 cabin air filter →
Choose your engine size
The 2018 BMW X3 uses different engine air filter part numbers by engine. Select your engine, then use the part numbers in that panel.
Not sure which engine you have?
Check the sticker on the driver's door jamb (open the door and look at the door frame) — it lists the engine displacement. You can also look at the rear of the car: a V6 badge means the larger engine; no engine badge typically indicates the base 4-cylinder (I4). When in doubt, check your owner's manual or the underhood emissions sticker.
turbo
Main catalog answer: WIX WA10889 / Purolator A31512
- Filter type
- Basic
- Sources
- WIX Filters, Purolator Now
The Direct Fit part is the primary catalog listing for this engine row. Purolator TA31512 is also listed by checked catalogs for this same engine row.
Links search this exact part number. Confirm 2018 BMW X3 and the turbo engine in the seller's vehicle selector before checkout.
I4 turbo
Main catalog answer: WIX WA10889
- Filter type
- Basic
- Sources
- WIX Filters
The Direct Fit part is the primary catalog listing for this engine row. No additional part numbers were found for this engine row.
Links search this exact part number. Confirm 2018 BMW X3 and the I4 turbo engine in the seller's vehicle selector before checkout.
Fitment scope and limits
The 2018 BMW X3 can use different engine air filters by engine size. Use the row for turbo, I4 turbo, then confirm that same engine in the seller's vehicle selector.
The checked catalogs did not provide source-backed replacement interval for this exact record, so this page does not publish those fields.
Catalogs can list more than one part number for the same vehicle. Use this page to compare the listed numbers, then use the seller's vehicle selector before ordering.
Source notes
Listed in 2 catalogs. These part numbers come from filter manufacturer catalogs. Use the source trail below to see which catalog supported this page.
| Source | Role | Supports | Checked |
|---|---|---|---|
| Purolator Now | Primary | Filter for turbo | 2026-06-26 |
| WIX Filters | Corroboration | Filters for 2 engine options | 2026-06-26 |
Checked catalogs: Purolator Now, WIX Filters. Replacement interval is not listed unless a source provides it for this exact vehicle and engine row.
2018 BMW X3 maintenance checklist
One part checked. Look up the rest while you're here.
- Cabin air filter 2018 BMW X3 cabin filter part numbers
- Engine air filter Match engine row Checked
- Wiper blade size 2018 BMW X3 driver & passenger blade sizes
- Oil type & capacity 2018 BMW X3 oil viscosity & fill amount
Questions this page answers
What engine air filter fits the 2018 BMW X3 turbo?
Checked catalogs list WIX WA10889, Purolator A31512, Purolator TA31512 for the 2018 BMW X3 turbo. The primary listing is WIX WA10889 / Purolator A31512, with Purolator TA31512 also listed. Confirm this part number in the seller's vehicle selector before ordering.
What engine air filter fits the 2018 BMW X3 I4 turbo?
Checked catalogs list WIX WA10889 for the 2018 BMW X3 I4 turbo. The primary listing is WIX WA10889. Confirm this part number in the seller's vehicle selector before ordering.
How do I know which engine my 2018 BMW X3 has?
Check the sticker on the driver's door jamb — it lists the engine displacement. A "V6" badge on the rear of the car means the larger engine. No engine badge typically means the base 4-cylinder (I4). When in doubt, check your owner's manual or the underhood emissions sticker.
Is the 2018 BMW X3 engine air filter the same across all engine options?
The 2018 BMW X3 can use different engine air filters by engine size. Use the row for turbo, I4 turbo, then confirm that same engine in the seller's vehicle selector.
Does this page confirm a replacement interval?
The checked catalogs did not provide source-backed replacement interval for this exact record, so this page does not publish those fields.
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