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HomeShopFiltersAir FiltersMercedes-Benz GLS (X166) GLS AMG 63 4-Matic (166.875) Air Filter – A 278 094 00 04 (2012 – 2019)
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Mercedes S63 AMG Coupe Air Filter

Mercedes-Benz GLS (X166) GLS AMG 63 4-Matic (166.875) Air Filter – A 278 094 00 04 (2012 – 2019)

SKU: ST1687

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Original price was: ₹3,200.00.Current price is: ₹1,600.00.

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Product information
Weight 1 kg
OEM Cross Reference

A 278 094 00 04
Vehicle Brand

Model

Year - Range

Brand of the Product

Compatibility

Mercedes-Benz GLS X166 2012 – 2019
HSN Code

84212300
Description
Buy Mercedes GLS AMG 63 4-Matic Air Filter A2780940004 Genuine OEM Mercedes GLS AMG 63 4-Matic Air Filter A2780940004 is a 100% Genuine Mercedes-Benz OEM replacement air filter designed for Mercedes-Benz GLS (X166) GLS AMG 63 4-Matic (166.875) (2012 – 2019). Compatible with OEM part number A 278 094 00 04, this premium air filter provides superior filtration, unrestricted airflow and maximum engine protection. It improves combustion efficiency, twin-turbocharger response, throttle response, horsepower and overall engine performance while extending the service life of the M157 AMG V8 Bi-Turbo petrol engine. Buy genuine Mercedes-Benz air filters online from JK Automotive with fast shipping across India.

Description

Buy Mercedes GLS AMG 63 4-Matic Air Filter A2780940004 Genuine OEM.

Mercedes GLS AMG 63 4-Matic Air Filter A2780940004 is a Genuine Mercedes-Benz OEM replacement air filter specifically engineered for Mercedes-Benz GLS (X166) GLS AMG 63 4-Matic (166.875) (2012 – 2019). It is fully compatible with OEM part number A 278 094 00 04 and is manufactured according to Mercedes-Benz factory specifications for precise fitment, superior sealing and long-lasting durability.

The premium multi-layer filtration media efficiently removes dust, dirt, pollen, sand, soot and other harmful airborne contaminants before they enter the engine intake system. It maintains unrestricted airflow while delivering exceptional filtration efficiency, ensuring the M157 AMG V8 Bi-Turbo petrol engine receives a continuous supply of clean air.

A clean air filter improves combustion efficiency, twin-turbocharger response, throttle response, horsepower and engine performance. It also helps provide smoother acceleration, improved fuel economy and reduced exhaust emissions while preserving the factory AMG driving dynamics.

Replacing the air filter at the recommended Mercedes-Benz service interval protects critical engine components including the twin turbochargers, mass airflow sensors, intake manifold, intake valves, pistons and cylinder walls from premature wear. Routine replacement helps extend engine life, reduce maintenance costs and maintain maximum engine efficiency.

Using a Genuine Mercedes-Benz OEM air filter guarantees factory-quality fitment, dependable filtration performance and long service life. It helps preserve the power, refinement and reliability expected from your Mercedes-Benz GLS AMG 63 4-Matic.

Purchase Mercedes GLS AMG 63 4-Matic Air Filter A2780940004 from JK Automotive for 100% Genuine Mercedes-Benz OEM spare parts, guaranteed compatibility, expert technical support, secure packaging, competitive pricing and fast shipping across India.

Compatible vehicles

ManufacturerModelYear-Range
Mercedes-BenzGLS (X166)2012 – 2019

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Questions and Answers

How do I know if this air filter is the exact correct fit for my specific Mercedes-Benz GLS AMG high-performance SUV model?
This engine air filter is precision-engineered to fit the face-lifted first-generation Mercedes-Benz GLS-Class X166 platform, specifically the high-performance GLS AMG 63 4-Matic petrol twin-turbocharged variants carrying the 166.875 chassis designation built between the production calendar years of 2012 and 2019. To guarantee absolute compatibility with your vehicle, you must cross-reference your existing factory filter with the official original equipment manufacturer part number, which is designated as A 278 094 00 04. This component is built specifically to accommodate the structural layout and extreme volumetric airflow requirements of the 5.5-litre biturbo V8 M157 engine configuration, ensuring a flawless airtight seal inside the specialized factory AMG air box housing. If you are currently shopping for the official Mercedes-Benz GLS (X166) GLS AMG 63 4-Matic (166.875) Air Filter - A 278 094 00 04 (2012 – 2019) element, checking your vehicle’s identification number against your owner's service manual or consulting a certified Mercedes-Benz technician will confirm if your premium full-size vehicle uses this exact rectangular media configuration. Avoid ordering based solely on the model year, as mid-cycle refreshes or regional engine variations can alter the filtration system dimensions significantly across different markets globally.
What are the primary performance benefits of upgrading to this premium engine air filter replacement?
Installing this premium replacement air filter directly restores and optimizes the internal combustion efficiency of your hand-assembled biturbo V8 GLS AMG 63 power plant by maximizing clean volumetric airflow into the twin-turbocharger induction tract. The highly specialized synthetic or cellulose fiber blend media is structured with precise pleating density to capture micro-particles, road debris, soot, and pollen before they can compromise sensitive internal engine components or scratch cylinder walls. By minimizing airflow restriction while maintaining exceptional filtration efficiency, this component allows the heavy-duty turbochargers to compress clean air more effortlessly, which directly translates to crisper throttle response and smoother overall acceleration across the power band. Upgrading your vehicle to a fresh Mercedes-Benz GLS (X166) GLS AMG 63 4-Matic (166.875) Air Filter - A 278 094 00 04 (2012 – 2019) prevents the vehicle's electronic control unit from adjusting fuel trims unnecessarily to compensate for a choked intake system, thereby preserving your luxury SUV's original factory performance specifications. Investing in a high-quality filter ensures that your performance vehicle maintains its iconic mechanical refinement and structural longevity for thousands of miles to come.
Can a clogged air filter affect the fuel economy and emissions output of my Mercedes GLS AMG 63 4-Matic?
Yes, a severely clogged or heavily contaminated engine air filter will drastically degrade your vehicle's fuel economy while simultaneously increasing harmful tailpipe emissions due to altered air-to-fuel ratios inside the combustion chamber. When air intake flow is constricted by trapped dirt and debris, the massive high-performance V8 engine is forced to work substantially harder to draw in the necessary volume of oxygen required for clean, complete fuel combustion cycles. This restriction induces a richer fuel mixture, meaning the engine burns more premium petrol than necessary, which rapidly decreases your miles per gallon and limits the performance optimization managed by the 4-Matic all-wheel-drive system electronics. Over time, running a vehicle without a pristine Mercedes-Benz GLS (X166) GLS AMG 63 4-Matic (166.875) Air Filter - A 278 094 00 04 (2012 – 2019) setup places excessive strain on the oxygen sensors and can prematurely foul or overheat your expensive catalytic converter system due to excessive exhaust temperatures. Regularly replacing your filtration element ensures a crisp, clean burn that lowers environmental emissions, maximizes fuel efficiency, protects auxiliary exhaust electronics, and prevents unexpected diagnostic trouble codes or check engine lights from illuminating on your dashboard.
What is the recommended service interval for changing the X166 GLS AMG 63 air filter?
The standard manufacturer recommendation for replacing the air filter element on an X166 Mercedes-Benz GLS AMG 63 generally falls between every fifteen thousand to thirty thousand miles, or approximately every two years under ordinary highway driving environments. However, if you frequently operate your luxury performance SUV in severe driving conditions, such as track-day environments, heavy towing, heavily congested urban commuter traffic, or dusty regional roads, you should inspect and replace the filter much sooner, potentially every ten thousand miles. Neglecting this simple preventative maintenance task causes the filter media to become saturated with fine atmospheric dust particles, which slowly chokes off the engine's massive oxygen supply and reduces the vehicle's operational efficiency. A good rule of thumb for premium automotive care is to visually inspect the condition of your filtration system to determine if you need to install a new Mercedes-Benz GLS (X166) GLS AMG 63 4-Matic (166.875) Air Filter - A 278 094 00 04 (2012 – 2019) unit to clear out excessive dark discoloration or trapped physical debris within the deep pleats. Replacing this inexpensive component proactively protects your precision-engineered twin-turbocharged powertrain from accelerated internal wear and guarantees that the engine always operates under optimal thermodynamic and mechanical conditions. [1]
What are the common symptoms that indicate my Mercedes-Benz X166 engine air filter needs urgent replacement?
When your Mercedes-Benz GLS air filter becomes overly saturated with contaminants, your vehicle will exhibit several distinct physical warning signs that indicate an immediate replacement is required to prevent further mechanical degradation. You will likely notice a sluggish or delayed throttle response when pressing the gas pedal, as the biturbo setup struggles to pull enough fresh atmospheric oxygen through the blocked filtration media to accelerate efficiently. The engine may also exhibit a rough, unstable idle or produce unusual muffled coughing sounds from the intake tract when starting the car up cold in the morning. In more severe cases of air starvation, you might notice a strong smell of unburnt fuel exiting the exhaust pipe, accompanied by a noticeable drop in overall boost pressure, acceleration performance, fuel economy, and all-wheel-drive launch capability. For those maintaining their vehicles regularly, swapping old parts for a fresh Mercedes-Benz GLS (X166) GLS AMG 63 4-Matic (166.875) Air Filter - A 278 094 00 04 (2012 – 2019) avoids triggering the mass airflow sensor to send error signals to the primary engine control module, ultimately illuminating the check engine light on your dashboard. [1]
Is it possible for a car owner to install this air filter at home without specialized mechanical tools?
Replacing the engine air filter on an X166 Mercedes-Benz GLS AMG 63 is a relatively straightforward do-it-yourself task that can easily be completed in your home garage or driveway within approximately fifteen to twenty minutes using standard hand tools. The air filter housings are located symmetrically within the hand-crafted V8 engine bay, and gaining access to the internal filter elements typically requires only a standard Torx screwdriver or screwdriver set to safely loosen the retaining clips or fastening screws securing the plastic air box covers. Once you carefully undo the fasteners and lift the housing lids, you can slide out the old, dirty air filters while taking note of their exact directional orientation inside the twin trays. It is highly recommended to use a vacuum cleaner or a clean microfiber cloth to thoroughly wipe out any loose leaves, sand, or debris sitting at the bottom of the empty air box before dropping in the new filter. Ensure the new filter sits completely flush within the rubber sealing track around the perimeter of the box before lowering the lid back down and securely retightening all the factory fasteners.
How does the OEM part number A 278 094 00 04 compare to aftermarket alternatives?
The original equipment manufacturer part number A 278 094 00 04 represents the strict engineering standards, high-flow tolerances, and material specifications established by Mercedes-Benz for the twin-turbocharged M157 AMG engine configuration. Premium aftermarket filters designed to match this specific part number utilize identical physical dimensions and high-grade filtration paper to provide a structural fit that is totally indistinguishable from the original dealership part. Opting for a certified replacement filter that explicitly references this exact OEM number guarantees that the rubber sealing gasket will perfectly fit the perimeter of your factory air box, preventing unfiltered air from bypassing the media. While generic, non-branded filters might appear cheaper at first glance, they often cut corners on pleat count, structural integrity, and gasket quality, which can lead to air leaks or rapid clogging that harms engine performance. Choosing a replacement unit that respects this official number ensures your car receives factory-level engine protection, optimized airflow, and long-lasting durability without paying the inflated prices often found at franchise dealership parts counters. [1]
How does a premium air filter protect the sensitive Mass Air Flow sensor inside the X166 engine bay?
The Mass Air Flow sensor is a highly precise electronic component situated directly downstream from your air filter housing, and it relies on a clean environment to accurately measure the volume and temperature of air entering the engine. Fitting your luxury full-size SUV with a high-grade Mercedes-Benz GLS (X166) GLS AMG 63 4-Matic (166.875) Air Filter - A 278 094 00 04 (2012 – 2019) prevents microscopic dust particles, moisture droplets, and loose fibers from breaking away from the filter media and contaminating the delicate hot wire element inside the sensor housing. If a low-quality or degraded filter allows debris to pass through, these particles will bake onto the sensor's measuring wire, causing it to send incorrect data to the engine computer regarding the incoming air volume. This contamination results in poor engine driveability, frequent misfires, rough shifting patterns from the automatic transmission, and expensive diagnostic repair bills for a replacement sensor. By investing in a high-efficiency filter with durable, non-shedding media fibers and a secure rubber seal, you effectively isolate this sensitive electronic sensor from atmospheric hazards, ensuring stable engine management performance.

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