K&N Performance Panel Air Filter for BMW X4 F26 30d/35d xDrive 2014-2018 - High-Flow Washable Reusable Cotton Gauze Drop-In OEM Replacement Sports Intake Filter N57 3.0d Diesel, Direct-Fit Stock Airbox, Lifetime Serviceable

K&N Cotton Performance Filter Upgrade for BMW X4 F26 30d xDrive and 35d xDrive 2014 to 2018

Give your BMW X4 diesel the breathing it deserves with this premium K&N cotton gauze intake filter. It is a straight swap for the factory paper element, designed to deliver improved throttle response and stronger mid-range pull while maintaining excellent engine protection. Serviceable and reusable, it offers outstanding long-term value for everyday driving and spirited road use.

• Enhanced airflow compared to a standard paper element for sharper response
• Premium oiled cotton media engineered for dependable filtration
• Direct fit into the factory airbox with no modification required
• Reusable design helps reduce waste and replacement costs over the life of the vehicle
• Service intervals up to 50,000 miles depending on driving conditions
• Compatible with stock ECU and sensors, no remap needed
• Backed by K&N’s renowned Million Mile Limited Warranty

Fitment

BMW X4 F26 2014 to 2018

• xDrive 30d
• xDrive 35d

Exact-size insert for the original air box. Simple DIY installation with basic tools.

Why enthusiasts choose this upgrade

We have installed these filters on customer X4 30d and 35d models and run them on our own builds. Feedback has been consistently positive, highlighting easy fitment, quality construction and a noticeable improvement in responsiveness. The serviceable design means you buy once and maintain, rather than repeatedly replacing disposable filters.

Installation and care

Remove the factory element and position the K&N filter in the standard airbox. For maintenance, clean and re-oil following K&N’s guidance to keep filtration efficiency and airflow at their best.

Professional fitting

Prefer a hassle-free install? MJ Modifications in Warwickshire can fit this item for you. Request a fitting quote at info@mjmodifications.co.uk.

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