Air Filters
The Total Air Refresh: Why Your BMW Needs Two Types of Protection
Your BMW breathes just like you do.
In fact, your vehicle has two separate respiratory systems. One feeds the engine to create horsepower, and the other feeds the cabin to keep you and your family safe.
At OEMBMWPartsUSA.com, we often hear the question: "Which filter do I need?"
The answer is often both. These filters tend to age at the same rate. If your engine is choking on dust, chances are you are breathing it in, too.
Here is the breakdown of your BMW’s filtration system and why Genuine OEM parts are critical for both the machine and the driver.
1. The Engine Air Filter: The Muscle
Located under the hood, this filter is the gatekeeper for your engine.
Protecting the Heart of the Car: Your BMW likely has a high-precision turbocharger. It sucks in massive amounts of air to generate power.
The Turbo Shield: If dirt, sand, or road grit gets past a cheap filter, it hits your turbo fins like a sandblaster. This causes permanent damage and power loss.
Fuel Efficiency: A clogged engine filter is like trying to run a sprint while breathing through a straw.
Engine Timing Chain Guide
Engine Balance Shaft Gear
Engine Crankcase Vent Valve
Engine Crankcase Vent Valve
Engine Crankshaft Thrust Washer
Engine Crankshaft Main Bearing
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