BMW 645Ci Cabin Air Filter by Year
Compare BMW 645Ci cabin air filter part numbers by model year. Select a year to open the checked fitment record with source notes before ordering.
| Year | Filter | Source coverage | Page |
|---|---|---|---|
| 2005 | WIX 49374 / Bosch C3900WS | Verified fit | Open record → |
BMW 645Ci cabin air filter — frequently asked questions
- What cabin air filter fits the BMW 645Ci?
- Checked catalogs list WIX 49374 / Bosch C3900WS as a compatible cabin air filter for the BMW 645Ci (2005). Confirm this part number in the seller's vehicle selector before ordering.
- How many years of BMW 645Ci cabin air filter data do you have?
- Our checked records cover 1 model year for the BMW 645Ci (2005). Select a year in the table above to open the exact fitment record.
- How often should I replace the BMW 645Ci 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 645Ci owner's manual for the exact interval and inspect it at every oil change.
Look up a specific BMW 645Ci year
Select a model year to open the exact checked cabin air filter fitment record before ordering.