2012 BMW 640i Air Filters

To achieve optimum performance, combustion engines require clean intake air. If pollutants in the air, such as soot or dust, get into the combustion chamber, pitting may occur on the cylinder heads, causing premature wear of the engine. The function of electronic parts located between the suction and the combustion chamber may also be significantly impaired. MANN-FILTER air filters are the end of the road for all dirt particles. No matter whether it’s dust, pollen, sand, soot or even water droplets – thanks to the highest degree of dirt separation and high mechanical stability, MANN-FILTER air filters filter even the smallest particles out of the intake air. This enables an optimum composition of the fuel-air ratio and ensures that the engine performance is consistent. In order to guarantee performance, air filters must be checked regularly, as a blocked filter will impede the air supply to the engine. The possible consequence of this is: the fuel may not be completely burned and may in part be discarded without being used.

Product Features:

• Highest degree of dirt separation and high mechanical stability
• Perfectly adapted in form and function to the widest possible range of installation situations
• Filter even the smallest particles out of the intake air
• Enables an optimum composition of the fuel-air ratio and ensures that the engine performance is consistent
• High dust holding capacity ensures reliability throughout the entire service interval

Constructed with 100-percent polyurethane boxed frame, this non-oiled OE replacement filter provides years of hassle free service. Three Layers of Progressive Synthetic (Dry) Media for Maximum Convenience. Washable and reusable for multiple cleaning cycles, the tall open evenly spaced pleats provide excellent dust holding capacity for longer service cycle between cleanings. Integrated urethane bump seal insures tight, no leak seal over the life of the filter.

Product Features:

• Outflows Stock Paper Filters For Improved Horsepower and Torque
• 100% Polyurethane Frame On All Sides For Extra Long Filter Life
• Washable And Reusable For Multiple Cleaning Cycles
• Progressive Bump Seal Design For A Perfect Fit

Carquest Premium engine air filters are designed to meet OE fit, form and function for optimal filtration and engine protection. High-quality paper, enhanced bonding, and reinforced metal screen backing give Carquest Premium air filters the added strength and durability that modern engines demand. Built to meet or exceed original equipment standards, Carquest Premium air filters provide exceptional engine protection and optimal performance in all driving conditions.

Product Features:

• Precision engineered to match OE fit, form and function
• Media provides 99% filtration efficiency and larger capacity
• Sealing materials are designed for each application to ensure a positive seal
• Reinforced metal screen backing with anti-rust coating on applicable applications
• Built to withstand high CFM conditions of forced induction engines

Constructed with 100-percent polyurethane boxed frame, this high flow, oiled OE replacement performance filter will outflow the stock filter for improved horsepower and torque. Five layers of progressively finer mesh cotton gauze media provide maximum airflow for best performance results. Washable and reusable for multiple cleaning cycles, the tall open evenly spaced pleats provide excellent dust holding capacity for longer service cycle between cleanings. Integrated urethane bump seal insures tight, no leak seal over the life of the filter.

Product Features:

• High Flow For Increased Performance
• Progressive 5 Layer Cotton Gauze Material
• Deep Cotton Pleats for Increased Flow
• Progressive Bump Seal For Leak-Free Seal