What Oil Filter Does an Audi A4 Need?

An Audi A4 typically uses an OEM oil filter made by brands like Mann, Mahle, or Hengst, but the exact filter part number depends on the model year and engine type—so you must match the filter to your specific A4 by year, engine code, and VIN or via a trusted parts catalog.

Why There’s No Single “One-Size” Oil Filter for the Audi A4

The Audi A4 has been produced since the mid‑1990s across several generations, each offering multiple engines: turbocharged gasoline (TFSI/TSI), diesel (TDI), and different displacements. This variety means the oil filter design, size, and part number can change significantly. Choosing the wrong filter can cause leaks, poor filtration, or even engine damage, so accuracy is critical.

How to Identify the Correct Oil Filter for Your Audi A4

Key Details You Need Before Choosing a Filter

To narrow down the correct oil filter, you need a few critical pieces of information about your car. The list below explains these details and why they matter for getting the right part.

• Model year (e.g., 2010, 2016, 2022) – Audi changed engines and filter designs between generations (B6, B7, B8, B9).
• Engine type and displacement – For example, 1.8 TFSI, 2.0 TFSI, 3.2 FSI, 2.0 TDI. Each often uses a different filter.
• Engine code – Codes like EA888, CAEB, CYMC, etc., further refine compatibility.
• Fuel type – Gasoline vs. diesel engines use different filters and sometimes different housings.
• VIN (Vehicle Identification Number) – A dealer or reputable online catalog can use this to look up the exact OEM filter.
• Market/region – US, European, and other markets can have different engine options and part numbers.

Once you have these details, you can confidently cross-reference an OEM part number or use a reputable catalog to avoid ordering the wrong filter.

Typical OEM Oil Filter Brands Used by Audi

Audi uses several Tier‑1 suppliers for oil filters, even in boxes labeled with Audi or VW logos. Understanding these brands helps when choosing high-quality aftermarket equivalents.

• Mann-Filter – One of the most common OEM suppliers for VAG (VW/Audi Group) vehicles; often identical to the Audi-branded filter.
• Mahle – Another primary OEM supplier offering cartridge and spin-on filters with OEM specifications.
• Hengst – Frequently used as a factory supplier; high-quality filters that often match OEM exactly.
• Bosch – Common quality aftermarket option, sometimes used as OE on specific engines.
• Purflux and Knecht – More common in European markets; also supply filters that meet OE standards.

Selecting one of these established brands, especially with an OEM cross-reference, generally ensures correct fit and proper filtration performance for your Audi A4.

Common Oil Filter Types by Audi A4 Generation

While exact part numbers can vary, there are recurring patterns in the types of oil filters used by each Audi A4 generation and its engines. The list below outlines typical filter styles and examples to guide owners, but you should always confirm against your specific car details.

• B6/B7 (approx. 2001–2008, depending on market)

  Gasoline 1.8T and 2.0: Usually use a spin-on canister oil filter.

  3.2 FSI V6: Typically uses a cartridge filter in a housing.

  1.9 TDI / 2.0 TDI: Often cartridge filters, with specific diesel-rated designs.

• B8 (approx. 2008–2016)

  2.0 TFSI (EA888 series): Commonly uses a cartridge filter (e.g., Mann HU 719/7 x or equivalent for many variants).

  3.2 FSI / 3.0 TFSI: V6 engines typically use a larger cartridge-style filter.

  2.0 TDI / 3.0 TDI: Diesel engines use dedicated cartridge filters matched to the engine code.

• B9 (approx. 2016–present, including many 2024–2025 models)

  2.0 TFSI / 2.0 TSI (latest EA888 variants): Usually cartridge filters integrated into a plastic or aluminum housing on the engine block.

  2.0 TDI / 3.0 TDI: Diesel engines continue with cartridge filters, often with different dimensions and seals from earlier generations.

  Mild-hybrid or performance variants (S4/S5, RS models based on A4 platform): Use specific filters compatible with higher performance and, in some cases, different oiling systems.

These patterns provide a useful starting point, but they are not a substitute for checking the exact part number based on engine code and VIN, as small design revisions can alter filter compatibility.

OEM Part Numbers and Aftermarket Cross-References

Illustrative Examples (Not Universal)

The following examples illustrate how OEM oil filter part numbers and common equivalents line up for some widely sold Audi A4 engines, especially in North America and Europe. These are examples only; always verify for your specific vehicle.

• 2.0 TFSI (EA888, many B8/B9 A4 models)

  Common OEM format: 06L 115 562 or similar (Audi/VW part, may have suffix letters).

  Typical equivalents: Mann HU-series, Mahle OX-series, Hengst E-series cartridge filters that cross-reference that OEM number.

• Older 1.8T and early 2.0 gasoline engines (B6/B7)

  Often use a spin-on filter such as OEM number 06A 115 561 B (or similar, suffix varies).

  Aftermarket examples: Mann W 719/30, Mahle OC 470, or equivalents.

• 2.0 TDI diesel

  Typically use a cartridge filter with an OEM code like 03L 115 562 or related variants.

  Aftermarket equivalents: Mann, Mahle, Hengst models that specifically cross to that diesel code.

Because Audi regularly updates part numbers and suffix letters, the safest approach is to use these examples as a cross-check against a live catalog or dealer lookup rather than relying on them as final references.

How to Look Up the Correct Oil Filter in Practice

Steps to Confirm the Right Filter

Rather than guessing, it’s best to follow a straightforward process to confirm the correct oil filter for your Audi A4. The steps below outline a practical method any owner can use.

1. Locate your VIN – Found on the dashboard near the windshield, driver’s door jamb sticker, or registration documents.
2. Check your owner’s manual – Some manuals list the filter type or at least specify OEM part numbers or service intervals.
3. Use an official or reputable parts catalog – Audi’s own online parts catalog, or major parts sites that allow search by VIN or license plate, can identify the precise filter.
4. Confirm with a dealer or trusted independent shop – Provide your VIN and engine details to get the accurate OEM part number.
5. Cross-reference with aftermarket brands – Once you have the OEM number, use the manufacturer’s catalog (Mann, Mahle, Hengst, Bosch, etc.) to select an equivalent filter.
6. Verify at the time of installation – Compare the new filter’s size, sealing surfaces, and fittings to the old one to ensure a proper match before adding oil.

Following this process reduces the chance of fitment errors and ensures the filter you install meets the engine’s design requirements and warranty expectations.

Quality and Warranty Considerations

Why OEM-Grade Filters Matter

The oil filter plays a critical role in protecting the turbocharger, camshafts, timing components, and other precision parts in modern Audi A4 engines, which run tight tolerances and often use long-life synthetic oils. Using a low-quality or incorrect filter can cause premature wear, sludge buildup, oil starvation, or increased risk of leaks.

For vehicles still under factory or extended warranty, it is generally safest to use Audi-branded or clearly OEM-equivalent filters and keep detailed records of part numbers, brands, and service dates. Many aftermarket filters are fully compliant, but proper documentation and adherence to Audi’s oil specifications (typically VW 502 00/504 00 for many gasoline engines, and 507 00 for many diesels) can be important if a warranty claim arises.

Practical Advice for Owners

Owners often want to know whether they can simply walk into a store and ask for “an oil filter for an Audi A4.” While this sometimes works, the increasing variety of engines and mid‑cycle updates make that approach risky. Providing at least the model year, engine type (e.g., “2018 Audi A4 2.0 TFSI”), and ideally your VIN dramatically increases the odds you’ll leave with the correct part.

If you change your own oil, consider sticking with one or two trusted brands and always verifying each new filter against the old one before installation. If a shop performs the service, you can request OEM filters or specify a brand (like Mann or Mahle) and ask to see the box or part number for your records.

Summary

An Audi A4 does not use a single universal oil filter; the correct filter depends on the car’s model year, engine type, engine code, and market. Audi typically relies on OEM suppliers such as Mann, Mahle, and Hengst, and many high-quality aftermarket filters are direct equivalents to the Audi/VW part numbers. To choose the right filter, owners should use their VIN and engine information in an official or reputable parts catalog, confirm the OEM part number, and then select an OEM or OEM-equivalent filter. This careful matching ensures proper fit, reliable filtration, and protection for the engine and its warranty.