BMW 525i Cabin Air Filter by Year
The BMW 525i (2005–2007) uses a consistent filter part number across all 3 checked model years. Select a year below to open the exact page with source notes before ordering.
| Year | Filter | Source coverage | Page |
|---|---|---|---|
| 2007 | WIX 49374 / Bosch C3900WS | Verified fit | Open record → |
| 2006 | WIX 49374 / Bosch C3900WS | Verified fit | Open record → |
| 2005 | WIX 49374 / Bosch C3900WS | Verified fit | Open record → |
Filter part number
WIX 49374 / Bosch C3900WS
Same across all 3 listed years
BMW 525i cabin air filter — frequently asked questions
- What cabin air filter fits the BMW 525i?
- Checked catalogs list WIX 49374 / Bosch C3900WS as a compatible cabin air filter for the BMW 525i (2005–2007). Confirm this part number in the seller's vehicle selector before ordering.
- How many years of BMW 525i cabin air filter data do you have?
- Our checked records cover 3 model years for the BMW 525i (2005–2007). Select a year in the table above to open the exact fitment record.
- How often should I replace the BMW 525i cabin air filter?
- Most manufacturers recommend replacing the cabin air filter every 15,000–25,000 miles or once a year, whichever comes first. Check your BMW 525i owner's manual for the exact interval and inspect it at every oil change.
Look up a specific BMW 525i year
Select a model year to open the exact checked cabin air filter fitment record before ordering.