

The BMC FB545/20 is a washable, reusable replacement panel air filter designed for select Audi A4, A5, Cabriolet, and Q5 B8/8T/8R applications.
Designed to replace the factory air filter on compatible applications where BMC FB545/20 is specified.
This BMC filter can be cleaned and re-oiled with the proper BMC cleaning kit instead of being discarded like a standard paper filter.
BMC’s oiled cotton gauze design supports improved airflow while maintaining filtration for performance-focused applications.
Use the table below to help confirm whether this BMC air filter matches your vehicle, engine, and application.
| Year Range | Make | Model | Engine | Trim / Notes | BMC Part No. | OEM Cross Reference |
|---|---|---|---|---|---|---|
| 2007-2012 | Audi | A4 (8K/B8) | 1.8 TFSI | 160 hp; confirm engine code and airbox configuration | FB545/20 | 8K0133843E, 8K0133843M, 8R0133843C, 8R0133843D, 8R0133843K |
| 2008-2015 | Audi | A4 (8K/B8) | 1.8 TFSI | 120 hp; confirm model year and market | FB545/20 | 8K0133843E, 8K0133843M, 8R0133843C, 8R0133843D, 8R0133843K |
| 2012-2015 | Audi | A4 (8K/B8) | 1.8 TFSI | 170 hp; confirm engine code and airbox configuration | FB545/20 | 8K0133843E, 8K0133843M, 8R0133843C, 8R0133843D, 8R0133843K |
| 2007-2015 | Audi | A4 (8K/B8) | 2.0 TDI | 120/136/143/150/163/170/177 hp variants; confirm engine code and market | FB545/20 | 8K0133843E, 8K0133843M, 8R0133843C, 8R0133843D, 8R0133843K |
| 2008-2015 | Audi | A4 (8K/B8) | 2.0 TFSI | 180/211/220/224 hp variants; 2008 applications require extra airbox verification | FB545/20 | 8K0133843E, 8K0133843M, 8R0133843C, 8R0133843D, 8R0133843K |
| 2009-2016 | Audi | A5 / Cabriolet (8T/8F) | 1.8 TFSI | 144/160/170/177 hp variants; confirm engine code and market | FB545/20 | 8K0133843E, 8K0133843M, 8R0133843C, 8R0133843D, 8R0133843K |
| 2008-2016 | Audi | A5 / Cabriolet (8T/8F) | 2.0 TDI | 136/143/150/163/170/177/190 hp variants; confirm engine code and market | FB545/20 | 8K0133843E, 8K0133843M, 8R0133843C, 8R0133843D, 8R0133843K |
| 2008-2016 | Audi | A5 / Cabriolet (8T/8F) | 2.0 TFSI | 180/211/220/225/230 hp variants; confirm chassis and airbox configuration | FB545/20 | 8K0133843E, 8K0133843M, 8R0133843C, 8R0133843D, 8R0133843K |
| 2009-2017 | Audi | Q5 (8R) | 2.0 TDI | 136/143/150/163/170/177 hp variants; confirm engine code and market | FB545/20 | 8K0133843E, 8K0133843M, 8R0133843C, 8R0133843D, 8R0133843K |
| 2009-2017 | Audi | Q5 (8R) | 2.0 TFSI | 180/220/225/230 hp variants; confirm chassis and airbox configuration | FB545/20 | 8K0133843E, 8K0133843M, 8R0133843C, 8R0133843D, 8R0133843K |
| 2008-2012 | Audi | Q5 (8R) | 2.0 TFSI Hybrid | 211 hp; confirm engine code and market | FB545/20 | 8K0133843E, 8K0133843M, 8R0133843C, 8R0133843D, 8R0133843K |
| Platform | Audi B8/8T/8R A4, A5, Cabriolet, and Q5 applications |
|---|---|
| Engine Notes | Compatible applications include select Audi 1.8L TFSI, 2.0L TDI, 2.0L TFSI, and Q5 2.0 TFSI Hybrid models where BMC FB545/20 is specified. |
| BMC Part Number | FB545/20 |
| OEM Cross References | 8K0133843E, 8K0133843M, 8R0133843C, 8R0133843D, 8R0133843K |
BMC replacement filters are built for drivers and riders who want reusable performance filtration while keeping an OEM-style airbox fitment.
The FB545/20 is designed for compatible applications where this BMC part number is specified. It is a smart choice for enthusiasts, shops, and installers looking for a washable replacement filter without converting to a full intake system.
BMC filters are washable and reusable when serviced correctly. Use the proper BMC cleaning kit, allow the filter to dry fully, and avoid over-oiling before reinstalling it.
Contact European Performance Filters before ordering. We can help verify the correct BMC part number using your vehicle details, model, engine, and production information.
Yes. BMC FB545/20 is designed as an OEM-style replacement filter for compatible applications where this BMC part number is specified.
No tuning is typically required when replacing the factory air filter with a compatible BMC replacement filter in the original airbox.
Yes. BMC FB545/20 is washable and reusable when cleaned, dried, and re-oiled correctly with the proper BMC cleaning kit.
FB545/20 is designed for select Audi A4, A5, Cabriolet, and Q5 B8/8T/8R applications where this BMC part number is specified. Always confirm your vehicle details and airbox configuration before ordering.