Audi A4 Quattro Replacement Air Filters

Buy now from K&N's Online Store and get a 100% money back guarantee on any Audi A4 Quattro air filter!

  • Designed to Increase Horsepower and Acceleration
  • High Air Flow with Excellent Filtration
  • Top Performance Accessory for Audi A4 Quattro Models
  • K&N Million Mile Limited Warranty®

Order your K&N replacement air filter Factory Direct today! Help your Audi A4 Quattro run better. Fast and FREE SHIPPING with any Audi A4 Quattro air filter

  1. 2025 Audi A4 Quattro 2.0L L4 Gas air filter
    Regular Price 48 633,69 Ft Special Price 36 476,49 Ft
    E-0646
    K&N
  2. 2024 Audi A4 Quattro 2.0L L4 Gas air filter
    Regular Price 48 633,69 Ft Special Price 36 476,49 Ft
    E-0646
    K&N
  3. 2023 Audi A4 Quattro 2.0L L4 Gas air filter
    Regular Price 48 633,69 Ft Special Price 36 476,49 Ft
    E-0646
    K&N
  4. 2022 Audi A4 Quattro 2.0L L4 Gas air filter
    Regular Price 48 633,69 Ft Special Price 36 476,49 Ft
    E-0646
    K&N
  5. 2021 Audi A4 Quattro 2.0L L4 Gas air filter
    Regular Price 48 633,69 Ft Special Price 36 476,49 Ft
    E-0646
    K&N
  6. 2020 Audi A4 Quattro 2.0L L4 Gas air filter
    Regular Price 48 633,69 Ft Special Price 36 476,49 Ft
    E-0646
    K&N
  7. 2019 Audi A4 Quattro 2.0L L4 Gas air filter
    Regular Price 48 633,69 Ft Special Price 36 476,49 Ft
    E-0646
    K&N
  8. 2018 Audi A4 Quattro 2.0L L4 Diesel air filter
    Regular Price 54 709,79 Ft Special Price 41 032,39 Ft
    E-0648
    K&N
  9. 2018 Audi A4 Quattro 2.0L L4 Gas air filter
    Regular Price 48 633,69 Ft Special Price 36 476,49 Ft
    E-0646
    K&N
  10. 2017 Audi A4 Quattro 2.0L L4 Diesel air filter
    Regular Price 54 709,79 Ft Special Price 41 032,39 Ft
    E-0648
    K&N
  11. 2017 Audi A4 Quattro 2.0L L4 Gas air filter
    Regular Price 48 633,69 Ft Special Price 36 476,49 Ft
    E-0646
    K&N
  12. 2016 Audi A4 Quattro 2.0L L4 Diesel air filter
    Regular Price 54 709,79 Ft Special Price 41 032,39 Ft
    E-0648
    K&N
  13. 2016 Audi A4 Quattro 2.0L L4 Gas air filter
    Regular Price 25 530,59 Ft Special Price 19 150,39 Ft
    AEM-28-20945
    K&N
  14. 2016 Audi A4 Quattro 2.0L L4 Gas air filter
    Regular Price 48 633,69 Ft Special Price 36 476,49 Ft
    E-0646
    K&N
  15. 2016 Audi A4 Quattro 2.0L L4 Gas air filter
    Regular Price 38 094,79 Ft Special Price 28 571,09 Ft
    33-2945
    K&N
  16. 2015 Audi A4 Quattro 2.0L L4 Gas air filter
    Regular Price 38 094,79 Ft Special Price 28 571,09 Ft
    33-2945
    K&N
  17. 2015 Audi A4 Quattro 3.0L V6 Gas air filter
    Regular Price 48 633,69 Ft Special Price 36 476,49 Ft
    E-1987
    K&N
  18. 2015 Audi A4 Quattro 2.0L L4 Gas air filter
    Regular Price 25 530,59 Ft Special Price 19 150,39 Ft
    AEM-28-20945
    K&N
  19. 2015 Audi A4 Quattro 2.0L L4 Diesel air filter
    Regular Price 54 709,79 Ft Special Price 41 032,39 Ft
    E-0653
    K&N
  20. 2015 Audi A4 Quattro 2.0L L4 Diesel air filter
    Regular Price 54 709,79 Ft Special Price 41 032,39 Ft
    E-0648
    K&N
  21. 2015 Audi A4 Quattro 2.0L L4 Gas air filter
    Regular Price 48 633,69 Ft Special Price 36 476,49 Ft
    E-0646
    K&N
  22. 2014 Audi A4 Quattro 3.0L V6 Gas air filter
    Regular Price 48 633,69 Ft Special Price 36 476,49 Ft
    E-1987
    K&N
  23. 2014 Audi A4 Quattro 2.0L L4 Gas air filter
    Regular Price 25 530,59 Ft Special Price 19 150,39 Ft
    AEM-28-20945
    K&N
  24. 2014 Audi A4 Quattro 2.0L L4 Gas air filter
    Regular Price 38 094,79 Ft Special Price 28 571,09 Ft
    33-2945
    K&N
  25. 2013 Audi A4 Quattro 3.0L V6 Gas air filter
    Regular Price 48 633,69 Ft Special Price 36 476,49 Ft
    E-1987
    K&N
  26. 2013 Audi A4 Quattro 2.0L L4 Gas air filter
    Regular Price 25 530,59 Ft Special Price 19 150,39 Ft
    AEM-28-20945
    K&N
  27. 2013 Audi A4 Quattro 2.0L L4 Gas air filter
    Regular Price 38 094,79 Ft Special Price 28 571,09 Ft
    33-2945
    K&N
  28. 2012 Audi A4 Quattro 3.0L V6 Diesel air filter
    Regular Price 48 633,69 Ft Special Price 36 476,49 Ft
    E-1987
    K&N
  29. 2012 Audi A4 Quattro 2.0L L4 Gas air filter
    Regular Price 38 094,79 Ft Special Price 28 571,09 Ft
    33-2945
    K&N
  30. 2012 Audi A4 Quattro 2.0L L4 Gas air filter
    Regular Price 25 530,59 Ft Special Price 19 150,39 Ft
    AEM-28-20945
    K&N
  31. 2011 Audi A4 Quattro 2.0L L4 Gas air filter
    Regular Price 25 530,59 Ft Special Price 19 150,39 Ft
    AEM-28-20945
    K&N
  32. 2011 Audi A4 Quattro 2.0L L4 Gas air filter
    Regular Price 38 094,79 Ft Special Price 28 571,09 Ft
    33-2945
    K&N
  33. 2010 Audi A4 Quattro 2.0L L4 Gas air filter
    Regular Price 25 530,59 Ft Special Price 19 150,39 Ft
    AEM-28-20945
    K&N
  34. 2010 Audi A4 Quattro 2.0L L4 Gas air filter
    Regular Price 38 094,79 Ft Special Price 28 571,09 Ft
    33-2945
    K&N
  35. 2009 Audi A4 Quattro 3.2L V6 Gas air filter
    Regular Price 48 633,69 Ft Special Price 36 476,49 Ft
    E-1987
    K&N
  36. 2009 Audi A4 Quattro 2.0L L4 Gas air filter
    Regular Price 25 530,59 Ft Special Price 19 150,39 Ft
    AEM-28-20945
    K&N
  37. 2009 Audi A4 Quattro 2.0L L4 Gas air filter
    Regular Price 38 094,79 Ft Special Price 28 571,09 Ft
    33-2945
    K&N
  38. 2008 Audi A4 Quattro 3.2L V6 Gas air filter
    Regular Price 38 094,79 Ft Special Price 28 571,09 Ft
    33-2209
    K&N
  39. 2008 Audi A4 Quattro 3.2L V6 Gas air filter
    Regular Price 48 633,69 Ft Special Price 36 476,49 Ft
    E-1987
    K&N
  40. 2008 Audi A4 Quattro 3.2L V6 Gas air filter
    10 293,59 Ft
    KNA-2209
    K&N LONG LIFE 18,000 MILE ENGINE AIR FILTER - AUDI A4/RS4/S4/ SEAT EXEO
  41. 2008 Audi A4 Quattro 2.0L L4 Gas air filter
    Regular Price 38 094,79 Ft Special Price 28 571,09 Ft
    33-2209
    K&N
  42. 2008 Audi A4 Quattro 2.0L L4 Gas air filter
    10 293,59 Ft
    KNA-2209
    K&N LONG LIFE 18,000 MILE ENGINE AIR FILTER - AUDI A4/RS4/S4/ SEAT EXEO
  43. 2007 Audi A4 Quattro 3.2L V6 Gas air filter
    10 293,59 Ft
    KNA-2209
    K&N LONG LIFE 18,000 MILE ENGINE AIR FILTER - AUDI A4/RS4/S4/ SEAT EXEO
  44. 2007 Audi A4 Quattro 3.2L V6 Gas air filter
    Regular Price 38 094,79 Ft Special Price 28 571,09 Ft
    33-2209
    K&N
  45. 2007 Audi A4 Quattro 2.0L L4 Gas air filter
    10 293,59 Ft
    KNA-2209
    K&N LONG LIFE 18,000 MILE ENGINE AIR FILTER - AUDI A4/RS4/S4/ SEAT EXEO
  46. 2007 Audi A4 Quattro 2.0L L4 Gas air filter
    Regular Price 38 094,79 Ft Special Price 28 571,09 Ft
    33-2209
    K&N
  47. 2006 Audi A4 Quattro 3.0L V6 Gas air filter
    10 293,59 Ft
    KNA-2209
    K&N LONG LIFE 18,000 MILE ENGINE AIR FILTER - AUDI A4/RS4/S4/ SEAT EXEO
  48. 2006 Audi A4 Quattro 3.0L V6 Gas air filter
    Regular Price 38 094,79 Ft Special Price 28 571,09 Ft
    33-2209
    K&N
  49. 2006 Audi A4 Quattro 3.2L V6 Gas air filter
    10 293,59 Ft
    KNA-2209
    K&N LONG LIFE 18,000 MILE ENGINE AIR FILTER - AUDI A4/RS4/S4/ SEAT EXEO
  50. 2006 Audi A4 Quattro 3.2L V6 Gas air filter
    Regular Price 38 094,79 Ft Special Price 28 571,09 Ft
    33-2209
    K&N
  51. 2006 Audi A4 Quattro 2.0L L4 Gas air filter
    10 293,59 Ft
    KNA-2209
    K&N LONG LIFE 18,000 MILE ENGINE AIR FILTER - AUDI A4/RS4/S4/ SEAT EXEO
  52. 2006 Audi A4 Quattro 2.0L L4 Gas air filter
    Regular Price 38 094,79 Ft Special Price 28 571,09 Ft
    33-2209
    K&N
  53. 2005 Audi A4 Quattro 1.8L L4 Gas air filter
    10 293,59 Ft
    KNA-2209
    K&N LONG LIFE 18,000 MILE ENGINE AIR FILTER - AUDI A4/RS4/S4/ SEAT EXEO
  54. 2005 Audi A4 Quattro 3.0L V6 Gas air filter
    Regular Price 38 094,79 Ft Special Price 28 571,09 Ft
    33-2209
    K&N
  55. 2005 Audi A4 Quattro 3.0L V6 Gas air filter
    10 293,59 Ft
    KNA-2209
    K&N LONG LIFE 18,000 MILE ENGINE AIR FILTER - AUDI A4/RS4/S4/ SEAT EXEO
  56. 2005 Audi A4 Quattro 1.8L L4 Gas air filter
    Regular Price 38 094,79 Ft Special Price 28 571,09 Ft
    33-2209
    K&N
  57. 2005 Audi A4 Quattro 3.2L V6 Gas air filter
    Regular Price 38 094,79 Ft Special Price 28 571,09 Ft
    33-2209
    K&N
  58. 2005 Audi A4 Quattro 3.2L V6 Gas air filter
    10 293,59 Ft
    KNA-2209
    K&N LONG LIFE 18,000 MILE ENGINE AIR FILTER - AUDI A4/RS4/S4/ SEAT EXEO
  59. 2005 Audi A4 Quattro 2.0L L4 Gas air filter
    Regular Price 38 094,79 Ft Special Price 28 571,09 Ft
    33-2209
    K&N
  60. 2005 Audi A4 Quattro 2.0L L4 Gas air filter
    10 293,59 Ft
    KNA-2209
    K&N LONG LIFE 18,000 MILE ENGINE AIR FILTER - AUDI A4/RS4/S4/ SEAT EXEO
  61. 2004 Audi A4 Quattro 1.8L L4 Gas air filter
    Regular Price 38 094,79 Ft Special Price 28 571,09 Ft
    33-2209
    K&N
  62. 2004 Audi A4 Quattro 1.8L L4 Gas air filter
    10 293,59 Ft
    KNA-2209
    K&N LONG LIFE 18,000 MILE ENGINE AIR FILTER - AUDI A4/RS4/S4/ SEAT EXEO
  63. 2004 Audi A4 Quattro 3.0L V6 Gas air filter
    Regular Price 38 094,79 Ft Special Price 28 571,09 Ft
    33-2209
    K&N
  64. 2004 Audi A4 Quattro 3.0L V6 Gas air filter
    10 293,59 Ft
    KNA-2209
    K&N LONG LIFE 18,000 MILE ENGINE AIR FILTER - AUDI A4/RS4/S4/ SEAT EXEO
  65. 2003 Audi A4 Quattro 1.8L L4 Gas air filter
    10 293,59 Ft
    KNA-2209
    K&N LONG LIFE 18,000 MILE ENGINE AIR FILTER - AUDI A4/RS4/S4/ SEAT EXEO
  66. 2003 Audi A4 Quattro 1.8L L4 Gas air filter
    Regular Price 38 094,79 Ft Special Price 28 571,09 Ft
    33-2209
    K&N
  67. 2003 Audi A4 Quattro 3.0L V6 Gas air filter
    Regular Price 38 094,79 Ft Special Price 28 571,09 Ft
    33-2209
    K&N
  68. 2003 Audi A4 Quattro 3.0L V6 Gas air filter
    10 293,59 Ft
    KNA-2209
    K&N LONG LIFE 18,000 MILE ENGINE AIR FILTER - AUDI A4/RS4/S4/ SEAT EXEO
  69. 2002 Audi A4 Quattro 1.8L L4 Gas air filter
    Regular Price 38 094,79 Ft Special Price 28 571,09 Ft
    33-2209
    K&N
  70. 2002 Audi A4 Quattro 1.8L L4 Gas air filter
    10 293,59 Ft
    KNA-2209
    K&N LONG LIFE 18,000 MILE ENGINE AIR FILTER - AUDI A4/RS4/S4/ SEAT EXEO
  71. 2002 Audi A4 Quattro 3.0L V6 Gas air filter
    Regular Price 38 094,79 Ft Special Price 28 571,09 Ft
    33-2209
    K&N
  72. 2002 Audi A4 Quattro 3.0L V6 Gas air filter
    10 293,59 Ft
    KNA-2209
    K&N LONG LIFE 18,000 MILE ENGINE AIR FILTER - AUDI A4/RS4/S4/ SEAT EXEO
  73. 2001 Audi A4 Quattro 1.8L L4 Gas air filter
    10 293,59 Ft
    KNA-2125
    K&N LONG LIFE 18,000 MILE ENGINE AIR FILTER - AUDI / SKODA / VW
  74. 2001 Audi A4 Quattro 2.8L V6 Gas air filter
    Regular Price 38 094,79 Ft Special Price 28 571,09 Ft
    33-2125
    K&N
  75. 2001 Audi A4 Quattro 2.8L V6 Gas air filter
    10 293,59 Ft
    KNA-2125
    K&N LONG LIFE 18,000 MILE ENGINE AIR FILTER - AUDI / SKODA / VW
  76. 2001 Audi A4 Quattro 1.8L L4 Gas air filter
    Regular Price 38 094,79 Ft Special Price 28 571,09 Ft
    33-2125
    K&N
  77. 2000 Audi A4 Quattro 1.8L L4 Gas air filter
    Regular Price 38 094,79 Ft Special Price 28 571,09 Ft
    33-2125
    K&N
  78. 2000 Audi A4 Quattro 2.8L V6 Gas air filter
    10 293,59 Ft
    KNA-2125
    K&N LONG LIFE 18,000 MILE ENGINE AIR FILTER - AUDI / SKODA / VW
  79. 2000 Audi A4 Quattro 2.8L V6 Gas air filter
    Regular Price 38 094,79 Ft Special Price 28 571,09 Ft
    33-2125
    K&N
  80. 2000 Audi A4 Quattro 1.8L L4 Gas air filter
    10 293,59 Ft
    KNA-2125
    K&N LONG LIFE 18,000 MILE ENGINE AIR FILTER - AUDI / SKODA / VW
  81. 1999 Audi A4 Quattro 2.8L V6 Gas air filter
    10 293,59 Ft
    KNA-2125
    K&N LONG LIFE 18,000 MILE ENGINE AIR FILTER - AUDI / SKODA / VW
  82. 1999 Audi A4 Quattro 2.8L V6 Gas air filter
    Regular Price 38 094,79 Ft Special Price 28 571,09 Ft
    33-2125
    K&N
  83. 1999 Audi A4 Quattro 1.8L L4 Gas air filter
    Regular Price 38 094,79 Ft Special Price 28 571,09 Ft
    33-2125
    K&N
  84. 1999 Audi A4 Quattro 1.8L L4 Gas air filter
    10 293,59 Ft
    KNA-2125
    K&N LONG LIFE 18,000 MILE ENGINE AIR FILTER - AUDI / SKODA / VW
  85. 1998 Audi A4 Quattro 2.8L V6 Gas air filter
    Regular Price 38 094,79 Ft Special Price 28 571,09 Ft
    33-2125
    K&N
  86. 1998 Audi A4 Quattro 1.8L L4 Gas air filter
    10 293,59 Ft
    KNA-2125
    K&N LONG LIFE 18,000 MILE ENGINE AIR FILTER - AUDI / SKODA / VW
  87. 1998 Audi A4 Quattro 1.8L L4 Gas air filter
    Regular Price 38 094,79 Ft Special Price 28 571,09 Ft
    33-2125
    K&N
  88. 1998 Audi A4 Quattro 2.8L V6 Gas air filter
    10 293,59 Ft
    KNA-2125
    K&N LONG LIFE 18,000 MILE ENGINE AIR FILTER - AUDI / SKODA / VW
  89. 1997 Audi A4 Quattro 2.8L V6 Gas air filter
    10 293,59 Ft
    KNA-2125
    K&N LONG LIFE 18,000 MILE ENGINE AIR FILTER - AUDI / SKODA / VW
  90. 1997 Audi A4 Quattro 1.8L L4 Gas air filter
    Regular Price 38 094,79 Ft Special Price 28 571,09 Ft
    33-2125
    K&N
  91. 1997 Audi A4 Quattro 2.8L V6 Gas air filter
    Regular Price 38 094,79 Ft Special Price 28 571,09 Ft
    33-2125
    K&N
  92. 1997 Audi A4 Quattro 1.8L L4 Gas air filter
    10 293,59 Ft
    KNA-2125
    K&N LONG LIFE 18,000 MILE ENGINE AIR FILTER - AUDI / SKODA / VW
  93. 1996 Audi A4 Quattro 2.8L V6 Gas air filter
    Regular Price 38 094,79 Ft Special Price 28 571,09 Ft
    33-2125
    K&N
  94. 1996 Audi A4 Quattro 2.8L V6 Gas air filter
    10 293,59 Ft
    KNA-2125
    K&N LONG LIFE 18,000 MILE ENGINE AIR FILTER - AUDI / SKODA / VW
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