What Is the Cabin Air Filter Part Number for the Audi Q5?

The cabin air filter part number for an Audi Q5 depends on the exact model year, engine, and market, but for many recent Q5 models a commonly used OEM cabin filter is 8K0 819 439 or its updated variant 8K0 819 439 B for standard dust/pollen filters, with 4M0 820 367 and 4M0 819 439 series numbers appearing on newer Q5 (FY) models. Because Audi has changed platforms and part numbering over time, drivers should confirm the exact number via VIN lookup or parts catalog for complete accuracy.

Why the Exact Part Number for an Audi Q5 Cabin Air Filter Is Not Universal

The Audi Q5 has been in production since 2008 and has gone through platform changes, facelifts, engine updates, and regional variations. As a result, there is no single cabin air filter part number that applies to every Q5 ever built. Instead, several genuine Audi/VW part numbers cover different generations, trim levels, and filter types (standard dust/pollen vs. activated carbon/charcoal). Without a VIN or at least a model year and engine, any answer must be framed as “most commonly used” rather than “one-size-fits-all.”

Key OEM Cabin Air Filter Part Numbers by Q5 Generation

Although exact compatibility must be confirmed for each individual vehicle, several part numbers appear repeatedly in Audi’s parts ecosystem for the Q5. Below is an overview of widely referenced genuine Audi/VW numbers, organized by generation and typical usage. This provides a practical reference point for owners checking or cross-referencing their filters.

First Generation Audi Q5 (Typ 8R, Approx. 2009–2017)

For the first-generation Q5 (platform code 8R), Audi commonly used a family of cabin air filter part numbers that are shared with other VW/Audi models of the same era. The filter sits behind the glovebox and is relatively easy to replace, but the part number differs slightly depending on whether the filter is a standard dust/pollen version or an activated carbon version that better absorbs odors and certain pollutants.

Commonly encountered OEM cabin air filter part numbers for Q5 8R include:

• 8K0 819 439 – Standard dust/pollen cabin air filter; widely used across many Q5 8R model years.
• 8K0 819 439 B – Updated or superseded variant of the standard filter, often listed as the replacement part.
• 8K0 819 439 A / C / D – Alternative or superseding codes depending on revision and market; some correspond to activated carbon versions.
• 8K0 819 367 – Seen in parts catalogs in some regions as a related or earlier cabin filter reference.

Across most 2009–2017 Q5 8R models, 8K0 819 439 or its lettered updates (especially 8K0 819 439 B) will be the primary part number you encounter, with charcoal variants using the same base number but a different suffix.

Second Generation Audi Q5 (Typ FY, Approx. 2018–Present)

The second-generation Q5 (platform code FY) introduced new part families as Audi migrated many components to updated platforms. The cabin air filter remains in a similar location in the passenger footwell or behind the glovebox but adopts new numbering patterns common to the MLB Evo platform shared with other modern Audi SUVs.

For FY-generation Q5 models, the following part numbers are commonly referenced:

• 4M0 819 439 – Frequently cited for the second-generation Q5 as a standard cabin air filter in some markets and trims.
• 4M0 820 367 – Another widely used cabin filter number for newer Q5 models, often associated with specific engine/option packages or revised designs.
• 4M0 819 439 A / B – Lettered revisions and variants, sometimes marking activated carbon/charcoal versions or updated fitment.

While 4M0 819 439 and 4M0 820 367 are among the most common references for current Q5 models, Audi’s incremental revisions mean the exact suffix can change over time, especially when new filtration standards or suppliers are adopted.

Why Cabin Filter Part Numbers Change

Automakers like Audi routinely revise part numbers for reasons that go well beyond simple fitment. Understanding why there are multiple numbers attached to what looks like one rectangular filter helps explain the variety Q5 owners may see when searching online or at the dealer parts counter.

Design Revisions and Supplier Changes

Cabin filters can be updated to improve air flow, filtration efficiency, construction quality, or compatibility with updated HVAC components. When Audi adopts a different supplier or modifies the filter’s materials or geometry, the part number typically gets a new suffix letter (for example, from 8K0 819 439 to 8K0 819 439 B).

Different Filter Media: Standard vs. Activated Carbon

Many Q5 models can use either a standard dust/pollen filter or an upgraded activated carbon (charcoal) version that traps certain gases and odors. These versions often share the same base number but differ by suffix, so two nearly identical part numbers may represent visibly different filter media.

Regional and Regulatory Factors

Some markets with higher pollution levels or specific regulations around cabin air quality may get different specification filters, again leading to additional part number variants. Left-hand-drive vs. right-hand-drive configurations can also affect the physical shape and therefore the number assigned.

How to Accurately Identify the Correct Cabin Filter for Your Q5

Because of the generational changes, regional variations, and incremental revisions, relying solely on a generic model name like “Audi Q5” is not enough to guarantee the correct cabin air filter. Owners should take a few simple steps to avoid ordering the wrong part.

Use the Vehicle Identification Number (VIN)

The most reliable method is to use your Q5’s VIN to query an official parts catalog or dealer system. The VIN encodes the exact model year, production plant, drivetrain, and equipment level, letting the system return the specific part number Audi associates with your car’s build.

Typical ways to use the VIN for parts lookup include:

• Contacting an authorized Audi dealer and asking for the cabin air filter part number for your VIN.
• Using official or reputable online parts catalogs that allow VIN-based searches.
• Checking service invoices if the filter was recently replaced at a dealer, where the part number is often printed.

With a VIN-based search, you eliminate most of the guesswork created by generational overlap and regional differences, ensuring the filter will match the housing in your specific Q5.

Cross-Referencing with Aftermarket Brands

Many owners choose aftermarket filters from brands like Mann, Mahle, Bosch, or Hengst. These manufacturers publish cross-reference tables that map their part numbers to Audi’s OEM numbers.

When using cross-reference information, keep in mind:

• Start from the confirmed OEM part number (for example, 8K0 819 439 B) and then look up the aftermarket equivalent.
• Check whether the aftermarket filter is a standard or activated carbon version; product names often use “C” or “Carbon” to indicate charcoal filters.
• Always verify the application list includes your exact model year and generation (e.g., “Q5 8R 2013–2017” or “Q5 FY 2018–on”).

Used correctly, these cross-references can save money while still delivering a high-quality replacement that matches Audi’s specifications.

Practical Advice for Audi Q5 Owners

While the OEM part number is crucial for ordering the exact cabin filter, maintenance habits and replacement intervals are just as important for ensuring good air quality and HVAC performance inside the Q5’s cabin.

Typical Replacement Intervals

Most Audi service schedules recommend changing the cabin air filter approximately every 15,000–20,000 km (about 10,000–12,000 miles) or once a year, though this interval can be shorter in dusty, urban, or high-pollution environments. Audi dealers sometimes bundle cabin filter replacement into “minor” or “inspection” services.

Signs the Cabin Filter May Need Replacement

Drivers who aren’t following the mileage-based interval can still look for everyday signs that the filter is overdue. These symptoms are generally consistent across both Q5 generations.

Common indicators include:

• Noticeably reduced airflow from vents at a given fan speed.
• Persistent musty or stale odors when the HVAC system is running.
• Fogging of windows that clears slowly, especially in humid conditions.
• Visible dirt, leaves, or discoloration when the filter is removed for inspection.

Replacing the filter promptly when these symptoms appear can restore HVAC performance and help protect occupants from pollutants and allergens.

Summary

The cabin air filter part number for an Audi Q5 is not a single universal code. For many first-generation Q5 (8R) models, the commonly used OEM number is 8K0 819 439 (often in revised form as 8K0 819 439 B), while second-generation Q5 (FY) models frequently use part numbers from the 4M0 819 439 and 4M0 820 367 families. Because Audi adjusts these components across years and markets—and offers both standard and activated carbon versions—the only fully reliable way to identify the correct filter is to check the part number against your vehicle’s VIN or consult an official Audi parts catalog.