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Audi Cabin Air Filter – Bosch
Audi Cabin Air Filter – Bosch
Audi Cabin Air Filter – Bosch
Audi Cabin Air Filter – Bosch
Audi Cabin Air Filter – Bosch
Audi Cabin Air Filter – Bosch

Audi Cabin Air Filter – Bosch

BOSCH
Availability:
Out of stock
SKU 6025C
Sold out
$40.83 - $40.83
$40.83
$40.83 - $40.83
$40.83
CALIFORNIA WARNING

Handling passenger or off-highway motor vehicle parts can expose you to chemicals such as phthalates and lead, which can cause cancer and reproductive harm. To minimize exposure, service the vehicle in a well-ventilated area, wear gloves, and wash your hands. For more information see www.P65Warnings.ca.gov/motor-vehicle-parts.

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This Bosch cabin air filter features HEPA-grade filtration with a foam pre-filter, capturing fine particles and odors. It is designed as a direct OE replacement for many Audi A4, S4, and RS4 models. The high-efficiency particulate media helps reduce allergens and pollutants entering the cabin.

Key Features & Benefits

  • HEPA Filtration: Captures 99.97% of airborne particles down to 0.3 microns.
  • Foam Pre-Filter: Removes larger debris and extends filter life.
  • OEM Reference: Replaces Audi part 4B0 819 439 C / 4B0819439C.
  • Durable Construction: Spunbound polyester and synthetic meltblown fibers.

Vehicle Fitment

Make Model Years Engine
Audi S4 2004–2005 4.2V8
Audi S4 2005–2009 4.2V8
Audi A4 Quattro 2005–2009 3.2V6
Audi A4 2005–2009 2.0L4
Audi RS4 2007–2008 4.2V8
Audi A4 2006–2008 3.2V6
Audi A4 Quattro 2002–2006 3.0V6
Audi A4 2002–2006 1.8L4
Audi A4 Quattro 2002–2005 1.8L4
Audi A4 2002–2005 3.0V6

Technical Specifications

Part Number 4B0819439C
Filter Type HEPA with Foam Pre-Filter
Material Spunbound Polyester, Meltblown Fibers, Foam
Brand Bosch

Installation Notes

Replace every 12,000 miles or as needed; accessible behind glovebox on most Audi models.

About Bosch

Bosch is a premier automotive component manufacturer, known for OE-quality parts and rigorous testing.

This part also goes by the following cross reference.

Cross Reference Part Number: 4B0819439C

Fits These Vehicles 11 applications
B6 A4
Make Model Engine Years
Audi S4 4.2V8 2004–2005
Audi A4 Quattro 3.0V6 2002–2006
Audi A4 1.8L4 2002–2006
Audi A4 Quattro 1.8L4 2002–2005
Audi A4 3.0V6 2002–2005
B7 A4
Make Model Engine Years
Audi S4 4.2V8 2005–2009
Audi A4 Quattro 3.2V6 2005–2009
Audi A4 Quattro 2.0L4 2005–2009
Audi A4 2.0L4 2005–2009
Audi A4 3.2V6 2006–2008
B7 RS4
Make Model Engine Years
Audi RS4 4.2V8 2007–2008
Fits 11 vehicle applications Check vehicle fitment before ordering View fitment

About this Cabin Air Filter

The BOSCH 6025C cabin air filter cleans the air coming into the car through the heating and A/C system, trapping dust, pollen and, in activated-charcoal versions, odors. A clogged filter reduces airflow and can cause musty smells.

Frequently asked questions

How often should I replace the cabin air filter?

Follow your car's maintenance schedule, and replace it more often if you drive in dusty or high-pollen areas or notice reduced airflow or odors.

What are the signs of a dirty cabin air filter?

Weak airflow from the vents even on high fan speed, windows that are slow to demist, a musty smell when the fan runs, or a filter that looks dark and clogged.

What is the difference between standard and charcoal filters?

Standard filters trap particles such as dust and pollen. Activated-charcoal filters also absorb odors and some exhaust fumes, which helps in heavy traffic.

Can I replace the cabin air filter myself?

On most cars, yes. It is usually behind the glovebox, under the cowl at the base of the windshield, or under the dashboard. Note the airflow arrow on the filter and fit it the right way round.

How do I make sure this cabin air filter fits my car?

Compare the part numbers listed on this page with the number on your old part or in your vehicle's parts catalog, and check the fitment information. If you are unsure, contact us with your VIN before ordering.

Euromotiv is an independent retailer of OEM, Genuine, and aftermarket automotive parts. We are not affiliated with, endorsed by, or authorized by Audi AG, Volkswagen AG, BMW AG, Mercedes-Benz Group AG, Dr. Ing. h.c. F. Porsche AG, MINI, or any other vehicle manufacturer. All trademarks, logos, and brand names are the property of their respective owners and are used solely for identification and compatibility purposes.