Performance Air Filter for Mercedes A, B, CLA & GLA-Class 160-250 (2011-2020)

Optimized Airflow for the Mercedes-Benz M270 Engine Platform

Who It’s For: Engineered for Mercedes-Benz owners running the M270.910 and M270.920 turbocharged powerplants who are tired of the sluggish throttle response found in the stock configuration.

The Symptom: The factory intake on the M270 engine is designed primarily for silence and cost-efficiency, not peak performance. It utilizes a dense, restrictive paper filter that creates significant air resistance as the turbocharger tries to pull volume. This restriction causes a noticeable delay in boost threshold and can make your CLA or A-Class feel breathless during heavy acceleration or highway merging.

Over time, these paper filters clog, further increasing the vacuum effect in the intake tract and forcing the engine to work harder just to breathe.

The Engineering Fix: This BMC performance filter replaces the restrictive factory paper with a multi-layered cotton gauze media soaked in low-viscosity oil. By using a "Full Moulding" system, the filter is created from a single mould with no welded joints, ensuring a perfect seal within the OEM airbox.

This design allows for a significantly higher air-to-filter surface ratio, trapping impurities as small as 7 microns while straightening the airflow path. The result is increased air density entering the turbocharger, leading to sharper throttle snap and a more efficient combustion cycle.

Why Mechanics Choose This Kit

• Enhanced Volumetric Efficiency: By reducing the pressure drop across the intake, the M270 turbocharger reaches target boost levels with less effort, improving torque delivery across the RPM range.
• Superior Filtration Technology: Unlike the standard 10-micron paper filters, this cotton gauze system traps particles down to 7 microns, providing better protection for the sensitive internals of your engine.
• Italian Engineering: Built using an epoxy-coated alloy mesh to prevent oxidation from humidity and fuel fumes, ensuring the filter structure remains rigid under high-velocity airflow.

Technical Specifications

Compatibility & OEM Reference

Fits the following vehicles (BMC fitment data):

• Mercedes CLA (C117/X117) CLA 180 (122 HP) | 2013-2018
• Mercedes CLA (C117/X117) CLA 200 (150 HP) | 2018-2019
• Mercedes CLA (C117/X117) CLA 200 (156 HP) | 2013-2018
• Mercedes CLA (C117/X117) CLA 220 4MATIC (184 HP) | 2016-2018
• Mercedes CLA (C117/X117) CLA 250 (211 HP) | 2013-2018
• Mercedes CLA (C117/X117) CLA 250 Sport (218 HP) | 2015-2018
• Mercedes A-Class (W176) A 160 (102 HP) | 2015-2018
• Mercedes A-Class (W176) A 180 Blue Efficiency (122 HP) | 2012-2018
• Mercedes A-Class (W176) A 200 Blue Efficiency (156 HP) | 2012-2018
• Mercedes A-Class (W176) A 220 (184 HP) | 2014-2018
• Mercedes A-Class (W176) A 250 Blue Efficiency (211 HP) | 2012-2018
• Mercedes A-Class (W176) A 250 Sport (211 HP) | 2012-2015
• Mercedes A-Class (W176) A 250 Sport (218 HP) | 2012-2018
• Mercedes B-Class (W246+W242) B 160 (102 HP) | 2015-2018
• Mercedes B-Class (W246+W242) B 180 Blue Efficiency (122 HP) | 2011-2018
• Mercedes B-Class (W246+W242) B 200 Blue Efficiency (156 HP) | 2011-2018
• Mercedes B-Class (W246+W242) B 200 Natural Gas Drive (156 HP) | 2012-2017
• Mercedes B-Class (W246+W242) B 220 4MATIC (184 HP) | 2013-2018
• Mercedes B-Class (W246+W242) B 250 Blue Efficiency (211 HP) | 2012-2018
• Mercedes GLA (X156) GLA 180 (122 HP) | 2015-2020
• Mercedes GLA (X156) GLA 200 (116 HP) | 2014-2020
• Mercedes GLA (X156) GLA 200 (150 HP) | 2018+
• Mercedes GLA (X156) GLA 200 (156 HP) | 2013-2020
• Mercedes GLA (X156) GLA 220 (184 HP) | 2017-2020
• Mercedes GLA (X156) GLA 250 (211 HP) | 2014-2020
• Mercedes GLA (X156) GLA 250 (224 HP) | 2020+

OEM Cross Reference (BMC): MERCEDES-BENZ 2700940004, A2700940004, INFINITI 165465DD0A

The Performance Promise

Buy with confidence. This is a lifetime component. Unlike disposable filters, this unit is fully washable and regenerable using a standard BMC cleaning kit. Backed by real automotive experts and fast shipping.

Common Questions

Which Mercedes models does it fit?
BMC lists the A-Class W176, B-Class W246, CLA C117 / X117 and GLA X156 160-250 petrol models, 2011-2020.

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.