Description
The BMW OEM Cabin Filter 64115A1BDB7 represents the genuine original equipment standard for climate control filtration, engineered precisely by BMW AG to ensure a premium cabin environment. Constructed using a dense electrostatic microfiber web embedded with high-grade premium activated carbon, this factory filter set acts as a highly efficient molecular sieve. The specialized charcoal layers dynamically absorb volatile organic compounds (VOCs), harsh traffic fumes, and commercial city odors, while the outer pleated media blocks fine particulate matter like brake dust, tire soot, and pollen. By preventing the accumulation of dirt within the heating, ventilation, and air conditioning (HVAC) core, it safeguards the blower motor, eliminates windshield fogging, and preserves the optimal cooling efficiency of your luxury vehicle’s climate matrix.
Vehicle Application Compatibility:
This genuine charcoal-activated interior cabin filter (supplied as a matching 2-piece set for full housing replacement) is designed for BMW’s modern rear-wheel-drive and all-wheel-drive platforms. It fits seamlessly across premium models driven in Bangladesh:
- BMW 3 Series Sedan / Touring (G20 / G21 / G28 Chassis): 320i, 330i, 330e Hybrid, M340i (2019 – Present)
- BMW 4 Series Coupe / Convertible / Gran Coupe (G22 / G23 / G26 Chassis): 420i, 430i, M440i (2021 – Present)
- BMW Z4 Roadster (G29 Chassis): sDrive20i, sDrive30i, M40i (2019 – Present)
- BMW M3 / M4 High-Performance Models (G80 / G82 / G83 Chassis): (2021 – Present)
(Note: Due to shared sports car platform development with BMW, this exact genuine filter set is also the factory-specified cabin replacement for the modern Toyota GR Supra A90/A91 generation models).
Cross Reference
This filter serves as a direct replacement for the following original manufacturer (OEM) part numbers:
- BMW: 64 11 5 A1B DB7
- BMW: 64115A1BDB7
- TOYOTA: 87139-WAA01
Maintenance Tip from Oil House Bangladesh:
The cabin air filter acts as your vehicle’s defensive lung against harsh urban environments. In Bangladesh, where vehicles constantly idle through thick construction dust, industrial air pollution, and severe traffic gridlock, an air conditioning filter degrades quickly. A clogged or lower-grade generic cabin filter chokes your blower motor, resulting in weak AC airflow, musty or sour cabin smells, and rapid dust accumulation on your premium dashboard and leather upholstery. When replacing this filter, ensure the technician checks the interior housing slot for any residual debris and installs the filter matching the correct directional airflow arrows printed on the frame. For maximum climate comfort and to keep your Audi’s AC cooling performing optimally in local humidity, we strongly advise inspecting the cabin filter every 5,000 km and replacing it entirely every 10,000 km.

