How Much Is an Air Filter for an Audi A4?

An engine air filter for an Audi A4 typically costs between $20 and $60 for a quality aftermarket part, while an OEM (genuine Audi) filter usually runs $40 to $90; if you have it replaced at a dealership or shop, the total bill with labor often lands between $80 and $180 depending on model year, engine, and location. Those headline numbers only tell part of the story, though, as filter type, brand, and where you buy or install it can change the final price significantly.

What Type of Air Filter Are We Talking About?

When drivers ask about “the air filter” for an Audi A4, they usually mean the engine air filter that cleans the air going into the engine. It’s important not to confuse this with the cabin air filter (also called a pollen or HVAC filter) that cleans the air entering the interior of the car, which has a different price range and maintenance schedule.

Engine Air Filter vs. Cabin Air Filter

Understanding the difference between these two filters helps you interpret price quotes and make sure you’re buying (or approving) the correct part.

• Engine air filter: Protects the engine by filtering dust, sand, and debris from the intake air. A clogged engine filter can affect performance and fuel efficiency.
• Cabin air filter: Cleans air that you breathe inside the car, filtering pollen, dust, and often exhaust odors. It has no direct effect on the engine.
• Location: The engine filter is typically in a plastic airbox under the hood; the cabin filter is often behind the glove box or under the cowl near the windshield.
• Service line items: Workshops sometimes list “air filter” (engine) and “dust & pollen filter” or “cabin filter” separately on invoices, which can cause confusion about cost.

Knowing whether you need the engine air filter, the cabin filter, or both ensures you compare the right prices and avoid paying for unnecessary parts or labor.

Typical Price Range for an Audi A4 Engine Air Filter

The cost of an Audi A4 engine air filter depends heavily on your vehicle’s generation and engine, plus whether you choose OEM or aftermarket. Still, most owners will fall into a fairly predictable price band.

Parts Cost: OEM vs. Aftermarket

The choice between an original Audi filter and an aftermarket equivalent is the biggest factor in parts cost.

• Aftermarket (quality brands): Around $20–$60 in the U.S., €20–€60 in Europe, or £15–£45 in the U.K. Brands like Mann, Mahle, Bosch, Hengst, and Wix are commonly used and often supply OEM-grade filters.
• OEM / Genuine Audi: Typically $40–$90 (or similar in local currency) when purchased at an Audi dealership or official parts outlet, with some performance or specialty engines at the upper end.
• Online discounts: Major online retailers and specialist parts sites frequently undercut dealership parts counters by 20–40%, especially if you’re willing to use a reputable aftermarket brand.
• Performance or reusable filters: High-flow or oiled cotton filters (e.g., K&N) often range from $60 to $120 but are marketed as long-life or reusable with periodic cleaning.

For most Audi A4 owners driving mainstream engines, a quality aftermarket filter in the $25–$50 range offers a good balance of cost and reliability, with OEM commanding a premium mainly for brand consistency and warranty peace of mind.

Labor and Installed Cost at Shops and Dealerships

If you have the filter replaced professionally instead of doing it yourself, labor and shop markups can more than double the total cost.

• Independent workshops: Installed prices often fall between $80 and $140 for an engine air filter on an Audi A4, depending on local labor rates.
• Dealerships: Dealer-installed replacement commonly ranges from $120 to $180, particularly in higher-cost urban areas, because of higher hourly rates and use of OEM filters.
• Labor time: The job is typically billed as 0.2–0.5 labor hours; on many A4 models, it’s a straightforward 10–20 minute procedure.
• Bundling with other service: The filter is often replaced during scheduled maintenance (like an annual service), which can obscure the individual labor cost on the invoice, but the parts markup still applies.

While professional replacement offers convenience and documentation for service history, the actual hands-on task is simple enough that many owners save substantially by purchasing the part themselves and performing the swap at home.

How Model Year and Engine Affect Price

Not all Audi A4 filters are interchangeable; differences in platforms, engine layouts, and airbox designs across generations mean prices can vary slightly. However, the overall range stays broadly similar.

Common Generations and What to Expect

Across recent Audi A4 generations, there are modest differences in filter size and part number, but the market has standardized around them, keeping prices relatively stable.

• B7 (approx. 2005–2008): Older models often use simpler panel filters. Aftermarket: typically $20–$40, OEM: around $40–$70.
• B8/B8.5 (approx. 2009–2016): Very common in the used market, widely supported by parts suppliers. Aftermarket: about $25–$50, OEM: about $45–$80.
• B9/B9.5 (approx. 2017–present): Newer platforms and sometimes more complex airbox designs, but similar price trends. Aftermarket: around $30–$60, OEM: roughly $50–$90.
• Engine variants (TFSI, TDI, performance trims): Higher-output engines or diesels may use a distinct filter shape or size, but cost differences are usually within $10–$20 of mainstream petrol engines.

The most important step is matching the filter to your car’s exact year, engine code, and VIN rather than assuming that “any A4 filter” will fit, as even minor design changes between facelifts can matter.

Where You Buy the Filter Can Change the Price

Retail channel is another key factor. The same manufacturer’s filter can cost noticeably more or less depending on whether it’s bought at a dealer, high-street retailer, or online warehouse.

Dealerships, Parts Stores, and Online Retailers

Shopping around for an Audi A4 air filter often produces a wide spread of prices for essentially the same product.

• Audi dealerships: Highest likelihood of getting a genuine OEM filter, but also the highest price. Expect full retail pricing, especially if not bundled with service.
• Brick-and-mortar parts stores: Offer convenience and same-day availability. Prices often sit mid-range, and you’ll typically find at least one or two reputable aftermarket options.
• Online retailers: Frequently the lowest cost, with the largest brand choice. Customer reviews and compatibility checkers help ensure correct fit, but you must verify you’re not buying counterfeit parts from unverified sellers.
• Specialist European parts sites: Cater specifically to Audi/VW platforms; they often list exact OEM equivalents (same manufacturer, different branding) at a discount.

In many cases, buying a name-brand aftermarket filter online and installing it yourself yields the best value, while dealerships trade a higher price for convenience, warranty alignment, and a single point of responsibility.

Other Costs and Considerations

Beyond the sticker price of the filter itself, a few practical factors influence the true cost of replacement, from installation difficulty to potential savings on fuel and engine wear.

DIY vs. Professional Replacement

Replacing an engine air filter on most Audi A4 models is a manageable task for a careful owner with basic tools.

• Tools required: Usually a screwdriver or Torx driver to open the airbox, plus patience to avoid damaging clips or seals.
• Time investment: Typically 10–30 minutes for a first-timer; much quicker once you know the layout.
• Cost savings: You may cut the total bill in half (or more) by skipping shop labor and dealer markups.
• Risks: Incorrect installation—such as pinched seals or leaving debris in the airbox—can allow unfiltered air into the engine, so thorough cleaning and careful seating of the new filter are important.

For owners comfortable under the hood, DIY replacement is one of the most cost-effective maintenance tasks on an Audi A4, but those unsure of their skills may prefer professional service to avoid mistakes.

How Often to Replace and What That Means for Cost

The service interval affects your long-term spending and can vary by driving environment more than by brand.

• Typical interval: Many Audi maintenance schedules recommend engine air filter replacement roughly every 30,000–45,000 miles (about 50,000–70,000 km) or every 3–4 years, whichever comes first.
• Harsh conditions: Frequent driving on dusty, unpaved, or heavily polluted roads can justify more frequent changes, perhaps every 15,000–20,000 miles.
• Symptoms of a clogged filter: Reduced acceleration, slightly poorer fuel economy, and sometimes a visibly dirty or darkened filter element when inspected.
• Long-term cost: Even replacing a $40 filter every 30,000 miles adds only a small amount to the cost per mile, especially compared with the value of protecting a high-priced engine.

Spread over several years of driving, the cost of regular air filter changes is modest insurance against increased engine wear, compromised performance, and marginally higher fuel consumption.

Cabin Air Filter: A Commonly Confused Extra

Many invoices and online parts listings mention both engine and cabin filters, which can confuse owners trying to understand total cost. While your question focuses on the engine air filter, it’s useful to know the separate cost profile of the cabin filter.

Typical Cabin Filter Costs for an Audi A4

Cabin air filters are usually slightly cheaper than engine filters, though pricing trends are broadly similar.

• Aftermarket cabin filters: Typically $15–$40 depending on whether it is a simple particulate filter or an activated carbon/charcoal filter that also targets odors and some pollutants.
• OEM cabin filters: Commonly $30–$70 from a dealership, again with regional variation.
• Installed at a shop: Total cost is often $70–$140 when labor and markup are included, especially at dealerships or premium workshops.
• Replacement interval: Frequently recommended every 15,000–20,000 miles (or annually in some climates), which makes the cabin filter a more recurring expense than the engine filter.

Because the cabin filter is less critical to engine health but important for comfort and air quality, some owners choose cheaper aftermarket options or charcoal variants for better odor control, while still maintaining a reasonable replacement schedule.

How to Get an Accurate Price for Your Specific Audi A4

While averages are helpful, the best figure is always the one tailored to your exact car and location. A few steps can narrow down the cost for your specific Audi A4 very quickly.

Practical Steps to Pinpoint Your Cost

Taking a few minutes to gather key details before shopping or booking service can prevent surprises at the counter.

• Identify your exact model and engine: Note the model year, engine size (e.g., 2.0 TFSI, 3.0 TDI), and if possible the engine code or VIN. This ensures correct part matching.
• Check part numbers: Use Audi’s parts catalog, online VIN-based lookups, or trusted parts sites to find the correct OEM part number and compatible aftermarket equivalents.
• Compare at least three sources: Look at a dealer, an independent parts retailer, and a reputable online store for the same or equivalent filter.
• Ask for a line-item quote: When booking service, request a breakdown of parts and labor so you know how much of the cost comes from the filter itself.

With this information, you can quickly see whether you’re paying a reasonable market rate or whether a simple change of supplier or approach—like going DIY—could save a meaningful amount of money.

Summary

For an Audi A4, a standard engine air filter generally costs $20–$60 for a good aftermarket part and $40–$90 for a genuine Audi filter, with dealer or shop replacement pushing the total into the $80–$180 range once labor and markups are included. Model year, engine type, brand choice, and where you buy or install the filter all influence the final price, but for most owners, the filter itself is a relatively inexpensive component changed only every 30,000–45,000 miles. By confirming the exact part number, comparing a few sources, and considering a straightforward DIY installation, many Audi A4 drivers can keep this routine maintenance item both affordable and effective in protecting their engine over the long term.

How often should I change the air filter on my Audi A4?

between 15,000 and 45,000 miles
In general, air filters should be replaced between 15,000 and 45,000 miles. There are, however, several factors that can affect this range. It is recommended to replace your Audi air filter more frequently if you drive in conditions such as heavy traffic, hot temperatures, or dusty roads.

What year Audi A4 to stay away from?

You should be cautious with Audi A4 years 2009-2012 (2.0 TFSI) due to excessive oil consumption, and 2005-2014 (Multitronic CVT) due to potential transmission issues. Other years to approach with caution include models with the early B9 diesels (2016-2018) which can have problems with the AdBlue system. Also, be aware of issues like oil consumption, carbon buildup, and electrical problems in other 2.0T engines and direct-injection engines in general, particularly before the 2014 model year.
 
Years and specific issues to avoid

• 2009–2012 (2.0 TFSI petrol models): High risk of excessive oil consumption, often requiring engine rebuilds or updated parts.
• 2005–2014 (B7/B8 with Multitronic CVT gearbox): Prone to juddering and failures, especially if transmission fluid was not changed on schedule.
• 2016–2018 (early B9 diesel models): Reports of problems with the AdBlue tank and heater, and NOx sensors, which can cause limp mode. 

This video explains the common issues in Audi A4 B8: 1mReDrivenYouTube · Jan 28, 2022
Other years and engines to be cautious about

• Models with 2.0L turbocharged four-cylinder engines (especially pre-2014): Can experience excessive oil consumption, timing chain issues, oil leaks, and carbon buildup. 
• 2006–2017 models (with 2.0FSI, 2.0TFSI, and 3.2FSI engines): Direct-injection engines are susceptible to carbon buildup, which can decrease power and fuel economy. 
• 1997–2007, 2009, and 2011 models: Some may experience engine misfires, which can lead to engines stalling after idling. 

What to look for when buying

• Service history: A complete service history is crucial, particularly for the Multitronic transmission fluid changes and oil consumption issues. 
• Professional inspection: Have a qualified mechanic thoroughly inspect any pre-2014 A4 with a 2.0T engine. 
• Maintenance: Even for models without known major issues, be prepared for potentially higher maintenance costs compared to non-luxury brands, as these vehicles may require premium fuel and specific, high-quality fluids. 

Can I drive my car with a bad air filter?

Yes, you can drive with a dirty air filter, but it’s not recommended as it can negatively impact your car’s performance and lead to engine damage over time. Driving with a clogged filter can cause reduced acceleration, lower fuel efficiency, and an engine that runs roughly or misfires. In severe cases, a completely blocked filter could lead to engine overheating or a shutdown.
 
This video explains the dangers of driving with a dirty air filter: 1mproclaimliberty2000YouTube · Aug 26, 2017
Performance and efficiency issues

• Reduced power and acceleration: A clogged filter restricts the amount of air that can enter the engine, which is essential for combustion. This can make your car feel sluggish and hesitant to accelerate. 
• Decreased fuel economy: Your engine has to work harder to pull in the necessary air, leading to a noticeable drop in gas mileage. 
• Engine misfires and strange noises: A dirty filter can disrupt the air-fuel mixture, potentially causing misfires and other unusual sounds from the engine. 
• “Check Engine” light: Modern cars may trigger the “Check Engine” light as a warning that there’s an issue with the air-fuel ratio or air flow. 

Long-term engine damage 

• Increased wear and tear: By forcing the engine to work harder, a dirty air filter can cause increased wear on internal engine components. 
• Contamination: If the filter is severely damaged or not seated correctly, dirt and debris can bypass it and get into the engine, leading to premature wear on parts like piston rings and cylinder walls. 
• Exhaust and catalytic converter issues: The engine may burn excess fuel, leading to more black smoke and soot. This can strain the catalytic converter, causing potential damage. 

Recommendation

• It is best to replace your air filter according to your manufacturer’s recommendation, which is often every 12,000 to 15,000 miles or once a year. 
• If you frequently drive in dusty or dirty conditions, you may need to check and replace your filter more often. 

You can watch this video to learn about the symptoms of a dirty air filter: 36sAuto EducateYouTube · Mar 28, 2025

How much does it cost to replace an Audi air filter?

The average cost for an Audi A4 Air Filter Replacement is between $83 and $134. Labor costs are estimated between $53 and $77 while parts are priced between $30 and $57. This range does not include taxes and fees, and does not factor in your unique location.