[Compatible Models] for 2018-2019 BMW X3 (XDrive30i/SDrive30/M40i); 2019 BMW X4 (XDrive30i/SDrive30/M40i); 2020-2021 BMW X3 (XDrive30i/SDrive30 Only)); 2020-2022 BMW X4 (XDrive30i Only)). [ NOT for X3 X4 M40i Models from 2020 and Later ! ! ] [Filter Replace Nos.] Cabin: 64119382885 / 64119382886 / CAF15031C / WP10427 / 87139-WAA01 / E4980LC / PC99458C / C31485C. Engine: 13718577171 / 13718577170 / 13718691835 / XA11535 / 106096 / WA10889 / CA12072 [Replace & Fit Check] Replace every 12 months or 12,000 miles. If the AC emits bad smell or the engine power drops, replace immediately. Before purchase, use Amazon’s ‘My Garage’ tool above to confirm compatibility with your vehicle. [2 - in - 1 Convenience] Get 2 filters in 1 kit: 1 cabin air filter & 1 engine air filter. One purchase, no separate orders or waiting. Save time and money. It installs easily in just 10 minutes for easy car maintenance. [After - sales service] If any of the kit doesn't fit your vehicle, contact us. We're dedicated to offering quality products and great service. [AFTER SERVICE]:Make sure the parts on pictures match your car before ordering to avoid wrong purchases. We promise that each one undergoes a strict quality test before shipping. If it fails,please contact us to handle it, we will reply you with in 24 working hours.