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HomeShopFiltersAir FiltersMercedes-Benz S-Class (W221, V221) S 500 Rear-Wheel Drive (221.071, 221.171) Air Filter – A 112 094 06 04 / A 112 094 00 04 / A 273 094 04 04 / A 273 094 02 04 (2005 – 2013)
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Mercedes-Benz S-Class (W221, V221) S 500 Rear-Wheel Drive (221.071, 221.171) Air Filter – A 112 094 06 04 / A 112 094 00 04 / A 273 094 04 04 / A 273 094 02 04 (2005 – 2013)

SKU: ST1817

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Original price was: ₹1,920.00.Current price is: ₹960.00.

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Product information
Weight 1 kg
OEM Cross Reference

A 112 094 06 04 / A 112 094 00 04 / A 273 094 04 04 / A 273 094 02 04
Vehicle Brand

Model

,

Year - Range

Brand of the Product

Compatibility

Mercedes-Benz S Class (W221, V221) 2005 – 2013
HSN Code

84212300
Description
Buy Mercedes S500 Rear-Wheel Drive Air Filter A1120940604 Genuine OEM

Mercedes S500 Rear-Wheel Drive Air Filter A1120940604 is a 100% Genuine Mercedes-Benz OEM replacement air filter designed for Mercedes-Benz S-Class (W221, V221) S 500 Rear-Wheel Drive (221.071, 221.171) (2005 – 2013). Compatible with OEM part numbers A 112 094 06 04, A 112 094 00 04, A 273 094 04 04 and A 273 094 02 04, this premium air filter provides superior filtration, unrestricted airflow and maximum engine protection. It enhances combustion efficiency, throttle response, fuel economy and overall engine performance while extending the service life of the M273 V8 petrol engine. Buy genuine Mercedes-Benz air filters online from JK Automotive with fast shipping across India.

Description

Buy Mercedes S500 Rear-Wheel Drive Air Filter A1120940604 Genuine OEM

Mercedes S500 Rear-Wheel Drive Air Filter A1120940604 is a genuine Mercedes-Benz OEM replacement air filter specifically designed for Mercedes-Benz S-Class (W221, V221) S 500 Rear-Wheel Drive (221.071, 221.171) (2005 – 2013). It is compatible with OEM part numbers A 112 094 06 04, A 112 094 00 04, A 273 094 04 04 and A 273 094 02 04, ensuring precise fitment and dependable factory-level performance.

The premium multi-layer filtration media efficiently captures dust, dirt, pollen, sand and other airborne contaminants before they enter the engine intake system. It maintains unrestricted airflow for efficient combustion while protecting critical engine components from premature wear.

Mercedes S500 Rear-Wheel Drive Air Filter A1120940604 improves combustion efficiency, throttle response, fuel economy and engine performance. It delivers smoother acceleration, responsive power delivery and reliable performance while protecting the M273 V8 petrol engine with a continuous supply of clean, filtered air.

Routine replacement of the air filter safeguards the mass airflow sensor, throttle body, intake manifold, intake valves, pistons and cylinders from harmful contaminants. Clean intake air helps preserve factory performance, improve fuel efficiency and extend engine service life.

Choosing a Genuine Mercedes-Benz OEM air filter guarantees factory-quality fitment, superior durability and long-lasting filtration efficiency. It is engineered to Mercedes-Benz specifications for reliable performance and dependable operation under all driving conditions.

Buy Mercedes S500 Rear-Wheel Drive Air Filter A1120940604 from JK Automotive for 100% genuine Mercedes-Benz OEM spare parts, competitive pricing, expert technical support, secure packaging and fast shipping across India.

Compatible vehicles

ManufacturerModelYear-Range
Mercedes-BenzS-Class (W221V221)

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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 S-Class premium petrol model?
This engine air filter is precision-engineered to fit the fifth-generation Mercedes-Benz S-Class W221 standard wheelbase and V221 long wheelbase flagship sedan platforms, specifically the S 500 rear-wheel drive petrol variants carrying the 221.071 or 221.171 chassis designations built within the vehicle production window of 2005 and 2013. To guarantee absolute compatibility with your vehicle, you must cross-reference your existing factory filter with the official original equipment manufacturer part numbers, which are designated as A 112 094 06 04, A 112 094 00 04, A 273 094 04 04, or A 273 094 02 04. This component is built specifically to accommodate the structural layout and unique dual-bank airflow requirements of the 5.5-litre naturally aspirated V8 M273 engine configuration, ensuring a flawless airtight seal inside the factory air box housing. If you are currently shopping for the official Mercedes-Benz S-Class (W221, V221) S 500 Rear-Wheel Drive (221.071, 221.171) Air Filter - A 112 094 06 04 / A 112 094 00 04 / A 273 094 04 04 / A 273 094 02 04 (2005 – 2013) element, checking your vehicle’s identification number against your owner's service manual or consulting a certified Mercedes-Benz technician will confirm if your luxury flagship saloon 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. [1, 2]
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 naturally aspirated V8 S 500 power plant by maximizing clean volumetric airflow into the intake manifold system. 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 engine 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 S-Class (W221, V221) S 500 Rear-Wheel Drive (221.071, 221.171) Air Filter - A 112 094 06 04 / A 112 094 00 04 / A 273 094 04 04 / A 273 094 02 04 (2005 – 2013) prevents the vehicle's electronic control unit from adjusting fuel trims unnecessarily to compensate for a choked intake system, thereby preserving your luxury saloon's original factory performance specifications. Investing in a high-quality filter ensures that your flagship vehicle maintains its iconic mechanical refinement and structural longevity for thousands of miles to come. [1]
Can a clogged air filter affect the fuel economy and emissions output of my Mercedes S 500 flagship saloon?
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 large displacement V8 petrol 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 petrol than necessary, which rapidly decreases your miles per gallon and limits the performance optimization managed by the vehicle's highly calibrated onboard control systems. Over time, running a vehicle without a pristine Mercedes-Benz S-Class (W221, V221) S 500 Rear-Wheel Drive (221.071, 221.171) Air Filter - A 112 094 06 04 / A 112 094 00 04 / A 273 094 04 04 / A 273 094 02 04 (2005 – 2013) 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. [1]
What is the recommended service interval for changing the W221 S 500 air filter?
The standard manufacturer recommendation for replacing the air filter element on a W221 Mercedes-Benz S 500 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 premium luxury sedan in severe driving conditions, such as long-distance executive travel, stop-and-go 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 oxygen supply and reduces the vehicle's operational efficiency. A good rule of thumb for luxury vehicle care is to visually inspect the condition of your filtration system to determine if you need to install a new Mercedes-Benz S-Class (W221, V221) S 500 Rear-Wheel Drive (221.071, 221.171) Air Filter - A 112 094 06 04 / A 112 094 00 04 / A 273 094 04 04 / A 273 094 02 04 (2005 – 2013) unit to clear out excessive dark discoloration or trapped physical debris within the deep pleats. Replacing this inexpensive component proactively protects your precision-engineered 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 W221 engine air filter needs urgent replacement?
When your Mercedes-Benz S-Class 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 5.5L V8 engine 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 petrol exiting the exhaust pipe, accompanied by a noticeable drop in overall fuel economy, smooth shifting transitions, and smooth power delivery under load. For those maintaining their vehicles regularly, swapping old parts for a fresh Mercedes-Benz S-Class (W221, V221) S 500 Rear-Wheel Drive (221.071, 221.171) Air Filter - A 112 094 06 04 / A 112 094 00 04 / A 273 094 04 04 / A 273 094 02 04 (2005 – 2013) 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 a W221 Mercedes-Benz S 500 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 housing is conveniently integrated into the plastic engine cover assembly directly over the V8 intake, 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 dual plastic housings. 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 respective 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. [1, 2]
How do these OEM part numbers compare to aftermarket filtration alternatives?
The original equipment manufacturer part numbers A 112 094 06 04, A 112 094 00 04, A 273 094 04 04, and A 273 094 02 04 represent the strict engineering standards, dimensions, and material specifications established by Mercedes-Benz for the premium M273 engine configuration. Premium aftermarket filters designed to match these specific part numbers 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 these exact OEM numbers 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 these official numbers 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.
How does a premium air filter protect the sensitive Mass Air Flow sensor inside the W221 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 premium vehicle with a high-grade Mercedes-Benz S-Class (W221, V221) S 500 Rear-Wheel Drive (221.071, 221.171) Air Filter - A 112 094 06 04 / A 112 094 00 04 / A 273 094 04 04 / A 273 094 02 04 (2005 – 2013) 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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