Mann Filter cabin air filter CUK 6724 for select BMW models — activated charcoal odor control, direct-fit replacement

Mann-Filter CUK 6724 is a replacement cabin air filter that fits select BMW models and combines particulate filtration with activated charcoal to reduce odors and airborne contaminants inside the vehicle.

This cabin filter is engineered to match factory specifications for fit and airflow while adding a layer of activated charcoal to capture fumes and unpleasant smells. Designed as a direct replacement part, the CUK 6724 works with the HVAC system to help maintain cleaner cabin air, longer blower life, and a more comfortable driving environment. It comes as a single unit sized to the vehicle’s original equipment dimensions and ships in compact packaging for easy exchange.

Which BMW models is the CUK 6724 compatible with?

The CUK 6724 is made to fit specific BMW model years and configurations that use this exact filter size and mounting shape. Always verify compatibility by checking the vehicle’s OEM part number or using the fitment tool before purchasing.

• Designed to match OEM cabin filter dimensions and clips
• Suitable for compatible BMW sedans and SUVs that list CUK 6724
• Sold as a single replacement piece for a direct swap-out

How does the activated charcoal layer help inside the car?

The activated charcoal media adsorbs volatile compounds and common odors that a standard particulate filter can’t capture. It works alongside the pleated fiber layer to reduce smells from traffic, exhaust, and interior sources, creating a fresher-feeling cabin.

• Adsorbs fuel and exhaust fumes for a less odorous interior
• Complements particulate filtration to address both smell and dust
• Passive, maintenance-free performance while installed

How often should I replace the cabin filter and how difficult is installation?

Replacement frequency depends on driving conditions and environment, but many drivers change cabin filters every 12,000–24,000 miles or annually for typical use. Installation is usually straightforward and can be done with minimal tools by accessing the HVAC intake or glovebox area.

• Typical swap interval: every 12k–24k miles or once a year, depending on exposure
• Simple install: designed for direct fit into the factory housing
• Compact package size and single-piece configuration for easy handling

What are the filter’s size and package details?

The product ships as one HVAC air filter packaged compactly to protect the media and keep installation simple. Check dimensions and package weight to confirm fit and shipping expectations.

• Item package dimensions: 26.77 L x 5.19 W x 1.25 H inches
• Package weight: 0.55 pounds; quantity: 1 filter
• Product type listed as HVAC air filter for cabin air systems

Who is this for: The Mann-Filter CUK 6724 is aimed at BMW owners and independent technicians who want a factory-style replacement cabin filter with added odor control. It suits drivers who prioritize a fresher cabin, reduced fumes, and straightforward maintenance without modifying the vehicle’s HVAC system. Ideal for regular commuters, fleet vehicles, or anyone replacing a worn or clogged cabin filter to restore airflow and reduce interior smells.