Performance Air Filter for BMW X5 E70 35d / 30sd & X6 E71 35dX (2007-2013)

High-Flow Induction for the BMW M57 Twin-Turbo Diesel Engine

Who It’s For: Engineered for BMW X5 and X6 owners running the M57D30TÜ2 powerplant who want to optimize their twin-turbo diesel’s breathing and efficiency.

The Symptom: The factory intake system on the M57 diesel is designed with a thick, restrictive paper element that prioritizes long service intervals over actual performance. For a heavy chassis like the E70 or E71, this creates a bottleneck. When you bury the throttle, the twin-turbochargers have to work harder to pull air through that dense paper barrier, leading to increased pumping losses, slower boost recovery between shifts, and a muted engine note that feels more like a tractor than a precision German machine.

The Engineering Fix: This BMC High-Performance Air Filter replaces the OEM "choke point" with a multi-layered cotton gauze media. By utilizing a "Full Moulding" process, BMC creates a single-piece filter frame that eliminates weak welded joints and ensures a perfect airtight seal within your factory airbox.

The physics are simple: less resistance equals higher air velocity. By allowing the turbos to reach target boost with less effort, you improve throttle snap and maintain better air-to-fuel ratios, which is critical for keeping Exhaust Gas Temperatures (EGTs) in check on a diesel platform.

Why Mechanics Choose This Kit

• Enhanced Filtration Density: While factory paper filters struggle with fine particulate, this multi-layer cotton media captures impurities as small as 7 microns, protecting your turbo compressors from micro-abrasion.
• Reduced Pressure Drop: By straightening the airflow path and increasing the surface area of the intake media, we reduce the vacuum stress on the M57’s induction tract.
• Lifetime Durability: Unlike disposable paper filters that end up in a landfill, this epoxy-coated alloy mesh design is fully washable and regenerable, making it the last filter your BMW will ever need.

Technical Specifications

Compatibility & OEM Reference

Fits the following vehicles (BMC fitment data):

• BMW X5 (E70) 35d (286 HP) | 2008-2010
• BMW X5 (E70) 35dX (286 HP) | 2010-2013
• BMW X5 (E70) 30Sd (286 HP) | 2007-2010
• BMW X6 (E71,E72) 35dX (286 HP) | 2008-2010

OEM Cross Reference (BMC): BMW 13717798342

The Performance Promise

Buy with confidence. At our shop, we know the M57 engine inside and out. This isn’t just a filter; it’s a tool to help your BMW breathe the way the engineers intended before the bean-counters got involved with service intervals. Backed by real automotive experts and fast shipping.

Common Questions

Which BMW models does it fit?
BMC lists the X5 E70 30sd / 35d / 35dX and X6 E71 35dX diesels (286 HP), 2007-2013.

Is it a direct fit?
Yes. It replaces the factory element in the stock airbox with no modifications.

Can I clean and reuse it?
Yes. Wash and re-oil it with a BMC regeneration kit.

How fine is the filtration?
The multi-layer oiled cotton traps particles down to 7 microns.

What will I notice after installing it?
Sharper throttle response and a stronger intake sound.