Performance Air Filter for Audi A3 8L, TT 8N, VW Golf IV, Jetta IV, Seat Leon, Skoda Octavia (1996-2012)

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High-Flow Air Filtration for Audi A3/TT & VW Golf IV EA113 1.8T and VR6 Engines

Who It’s For: Designed specifically for owners of the Volkswagen Group PQ34 chassis platform running the legendary EA113 (1.8T 20V) and the VR6 engine families. Whether you are daily driving a TDI or tuning a 20-valve turbo, this is the hardware required to let your intake breathe.

The Problem: The factory paper filter is a major restriction point in the EA113 intake tract. Stock filters are designed for service intervals, not flow efficiency. As you increase boost or RPM, the OEM paper element creates a pressure drop that forces your turbo to work harder and run hotter, leading to premature heat soak and softened throttle response.

The Solution: We engineered this BMC replacement filter to eliminate the intake bottleneck. By utilizing multi-layered cotton gauze treated with low-viscosity oil, we significantly increase the surface area and air velocity. This allows your engine to reach target boost faster while maintaining filtration down to 7 microns, ensuring your MAF sensor and compressor wheel stay protected from debris.

Why This is the Ultimate Upgrade

Optimized Airflow: Increased CFM allows the turbocharger to spool earlier in the RPM range, reducing lag in the 1.8T 20V powerband.
Full Molding Construction: Unlike cheap aftermarket filters with glued seams, this uses a "Full Molding" process. This creates a single-piece rubber frame that won’t crack or leak under the high heat of a cramped Audi TT or S3 engine bay.
Lifetime Efficiency: This is the last filter you’ll buy. It is fully washable and reusable, designed to maintain its structural integrity even after multiple cleaning cycles using a regeneration kit.

Technical Specifications

Fitment	Audi A3 (8L), TT (8N); VW Golf IV, Jetta IV / Bora, New Beetle, Polo IV 2.0 Total Flex; Seat Leon I, Toledo II; Skoda Octavia I
Dimensions	184mm x 359mm panel
Part Number	BMC FB159/01

Compatibility & OEM Reference

Fits the following vehicles (BMC fitment data):

Audi A3 (8L) 1.6 (101 HP) | 1996-2000
Audi A3 (8L) 1.6 (102 HP) | 2000-2003
Audi A3 (8L) 1.8 (125 HP) | 1996-2003
Audi A3 (8L) 1.8 T (150 HP) | 1996-2003
Audi A3 (8L) 1.9 TDI (90 HP) | 1996-2001
Audi TT I (8N) 1.8 T (150 HP) | 2000-2005
Audi TT I (8N) 1.8 T (163 HP) | 2005-2006
Audi TT I (8N) 1.8 T (180 HP) | 1998-2005
Audi TT I (8N) 1.8 T (190 HP) | 2005-2006
Audi TT I (8N) 1.8 T (224 HP) | 1998-2006
Audi TT I (8N) 1.8 T Sport (240 HP) | 2005-2006
Audi TT I (8N) 3.2 (250 HP) | 2003-2006
Audi A3 (8L) 1.8 S3 (210 HP) | 1999-2001
Audi A3 (8L) 1.8 S3 (225 HP) | 2001-2003
Audi A3 (8L) 1.8 T (180 HP) | 1998-2003
Audi A3 (8L) 1.9 TDI (100 HP) | 2000-2003
Audi A3 (8L) 1.9 TDI (110 HP) | 1997-2001
Audi A3 (8L) 1.9 TDI (115 HP) | 2000-2001
Audi A3 (8L) 1.9 TDI (130 HP) | 2000-2003
Seat Leon I 1.6 (100 HP) | 1999-2005
Seat Leon I 1.6 (102 HP) | 2005-2006
Seat Leon I 1.8 20V (125 HP) | 1999-2005
Seat Leon I 1.8 20V T Cupra (180 HP) | 1999-2005
Seat Leon I 1.8 T 20V Cupra R (210 HP) | 2002-2005
Seat Leon I 1.8 T 20V Cupra R (225 HP) | 2003-2006
Seat Leon I 1.9 SDI (68 HP) | 2000-2003
Seat Leon I 1.9 TDI (90 HP) | 1999-2005
Seat Leon I 1.9 TDI (101 HP) | 2005-2006
Seat Leon I 1.9 TDI (110 HP) | 1999-2005
Seat Leon I 1.9 TDI (130 HP) | 2003-2006
Seat Leon I 1.9 TDI TS/FR (150 HP) | 2000-2005
Seat Leon I 2.8 VR6 24V Cupra 4 (204 HP) | 2000-2004
Seat Toledo II 1.6 16V (100 HP) | 1999-2000
Seat Toledo II 1.8 20V (125 HP) | 1999-2006
Seat Toledo II 1.8 20V Turbo (180 HP) | 2001-2006
Seat Toledo II 1.9 SDI (68 HP) | 1999-2004
Seat Toledo II 1.9 TDI (90 HP) | 1999-2006
Seat Toledo II 1.9 TDI (110 HP) | 1999-2006
Seat Toledo II 1.9 TDI (130 HP) | 2003-2006
Seat Toledo II 1.9 TDI (150 HP) | 2000-2006
Seat Toledo II 2.3 (150 HP) | 1999-2001
Seat Toledo II 2.3 20V (170 HP) | 2001-2006
Skoda Octavia I 1.4 (60 HP) | 1999-2010
Skoda Octavia I 1.4 (68 HP) | 2000-2004
Skoda Octavia I 1.6 (101 HP) | 1997-2010
Skoda Octavia I 1.6 (102 HP) | 1997-2004
Skoda Octavia I 1.8 (125 HP) | 1996-2010
Skoda Octavia I 1.8 Turbo ,4x4 (150 HP) | 1996-2010
Skoda Octavia I 1.8 Turbo RS (180 HP) | 2001-2010
Skoda Octavia I 1.9 SDI (64 HP) | 1996-2004
Skoda Octavia I 1.9 SDI (68 HP) | 1997-2010
Skoda Octavia I 1.9 TDI (110 HP) | 1997-2010
Skoda Octavia I 1.9 TDI (130 HP) | 2003-2010
Skoda Octavia I 1.9 TDI,4x4 (90 HP) | 1996-2010
Skoda Octavia I 1.9 TDI,4x4 (100 HP) | 2005-2010
Skoda Octavia I 2.0 4x4 (120 HP) | 2000-2010
Skoda Octavia I 2.0,4x4 (116 HP) | 1999-2010
Volkswagen Bora 1.6 (101 HP) | 1997-2000
Volkswagen Bora 1.6 (102 HP) | 2000-2005
Volkswagen Bora 1.6 FSI (110 HP) | 2002-2005
Volkswagen Bora 1.8 / 4-motion (125 HP) | 1997-2005
Volkswagen Bora 1.8 GTI (180 HP) | 2001-2005
Volkswagen Bora 1.8 T (150 HP) | 1997-2005
Volkswagen Bora 1.9 SDi (68 HP) | 1997-2005
Volkswagen Bora 1.9 TDI (110 HP) | 1997-2004
Volkswagen Bora 1.9 TDI / 4-motion (90 HP) | 1997-2004
Volkswagen Bora 1.9 TDI / 4-motion (101 HP) | 2000-2005
Volkswagen Bora 1.9 TDI / 4-motion (115 HP) | 1998-2001
Volkswagen Bora 1.9 TDI / 4-motion (130 HP) | 2000-2005
Volkswagen Bora 1.9 TDI / 4-motion (150 HP) | 2000-2005
Volkswagen Bora 1.9 TDI Cabrio (90 HP) | 1998-2002
Volkswagen Bora 2.0 / 4-motion (115 HP) | 1998-2005
Volkswagen Bora 2.0 i Bifuel (116 HP) | 2002-2006
Volkswagen Bora 2.3 V5 / 4-motion (150 HP) | 1997-2000
Volkswagen Bora 2.3 V5 / 4-motion (170 HP) | 2000-2005
Volkswagen Bora 2.8 i V6 (204 HP) | 1999-2005
Volkswagen Bora 3.2 R32 (241 HP) | 2002-2005
Volkswagen Clasico (A4) 1.6 (101 HP) | 1997-2000
Volkswagen Clasico (A4) 1.6 (102 HP) | 2000-2005
Volkswagen Clasico (A4) 1.6 FSI (110 HP) | 2002-2005
Volkswagen Clasico (A4) 1.8 / 4-motion (125 HP) | 1997-2005
Volkswagen Clasico (A4) 1.8 GTI (180 HP) | 2001-2005
Volkswagen Clasico (A4) 1.8 T (150 HP) | 1997-2005
Volkswagen Clasico (A4) 1.9 SDi (68 HP) | 1997-2005
Volkswagen Clasico (A4) 1.9 TDI (110 HP) | 1997-2004
Volkswagen Clasico (A4) 1.9 TDI / 4-motion (90 HP) | 1997-2004
Volkswagen Clasico (A4) 1.9 TDI / 4-motion (101 HP) | 2000-2005
Volkswagen Clasico (A4) 1.9 TDI / 4-motion (115 HP) | 1998-2001
Volkswagen Clasico (A4) 1.9 TDI / 4-motion (130 HP) | 2000-2005
Volkswagen Clasico (A4) 1.9 TDI / 4-motion (150 HP) | 2000-2005
Volkswagen Clasico (A4) 2.0 / 4-motion (115 HP) | 1998-2005
Volkswagen Clasico (A4) 2.0 i Bifuel (116 HP) | 2002-2006
Volkswagen Clasico (A4) 2.3 V5 / 4-motion (150 HP) | 1997-2000
Volkswagen Clasico (A4) 2.3 V5 / 4-motion (170 HP) | 2000-2005
Volkswagen Clasico (A4) 2.8 i V6 (204 HP) | 1999-2005
Volkswagen Clasico (A4) R32 (241 HP) | 2002-2005
Volkswagen Golf IV (1J1,1J5) 1.6 (101 HP) | 1997-2000
Volkswagen Golf IV (1J1,1J5) 1.6 (102 HP) | 2000-2005
Volkswagen Golf IV (1J1,1J5) 1.6 FSI (110 HP) | 2002-2005
Volkswagen Golf IV (1J1,1J5) 1.8 / 4-motion (125 HP) | 1997-2005
Volkswagen Golf IV (1J1,1J5) 1.8 GTI (180 HP) | 2001-2005
Volkswagen Golf IV (1J1,1J5) 1.8 T (150 HP) | 1997-2005
Volkswagen Golf IV (1J1,1J5) 1.9 SDi (68 HP) | 1997-2005
Volkswagen Golf IV (1J1,1J5) 1.9 TDI (110 HP) | 1997-2004
Volkswagen Golf IV (1J1,1J5) 1.9 TDI / 4-motion (90 HP) | 1997-2004
Volkswagen Golf IV (1J1,1J5) 1.9 TDI / 4-motion (101 HP) | 2000-2005
Volkswagen Golf IV (1J1,1J5) 1.9 TDI / 4-motion (115 HP) | 1998-2001
Volkswagen Golf IV (1J1,1J5) 1.9 TDI / 4-motion (130 HP) | 2000-2005
Volkswagen Golf IV (1J1,1J5) 1.9 TDI / 4-motion (150 HP) | 2000-2005
Volkswagen Golf IV (1J1,1J5) 2.0 / 4-motion (115 HP) | 1998-2005
Volkswagen Golf IV (1J1,1J5) 2.0 i Bifuel (116 HP) | 2002-2006
Volkswagen Golf IV (1J1,1J5) 2.3 V5 / 4-motion (150 HP) | 1997-2000
Volkswagen Golf IV (1J1,1J5) 2.3 V5 / 4-motion (170 HP) | 2000-2005
Volkswagen Golf IV (1J1,1J5) 2.8 i V6 (204 HP) | 1999-2005
Volkswagen Golf IV (1J1,1J5) 3.2 R32 (241 HP) | 2002-2005
Volkswagen Jetta IV (162) 1.6 (101 HP) | 1997-2000
Volkswagen Jetta IV (162) 1.6 (102 HP) | 2000-2005
Volkswagen Jetta IV (162) 1.6 FSI (110 HP) | 2002-2005
Volkswagen Jetta IV (162) 1.8 / 4-motion (125 HP) | 1997-2005
Volkswagen Jetta IV (162) 1.8 GTI (180 HP) | 2001-2005
Volkswagen Jetta IV (162) 1.8 T (150 HP) | 1997-2005
Volkswagen Jetta IV (162) 1.9 SDi (68 HP) | 1997-2005
Volkswagen Jetta IV (162) 1.9 TDI (110 HP) | 1997-2004
Volkswagen Jetta IV (162) 1.9 TDI / 4-motion (90 HP) | 1997-2004
Volkswagen Jetta IV (162) 1.9 TDI / 4-motion (101 HP) | 2000-2005
Volkswagen Jetta IV (162) 1.9 TDI / 4-motion (115 HP) | 1998-2001
Volkswagen Jetta IV (162) 1.9 TDI / 4-motion (130 HP) | 2000-2005
Volkswagen Jetta IV (162) 1.9 TDI / 4-motion (150 HP) | 2000-2005
Volkswagen Jetta IV (162) 2.0 i Bifuel (116 HP) | 2002-2006
Volkswagen Jetta IV (162) 2.3 V5 / 4-motion (150 HP) | 1997-2000
Volkswagen Jetta IV (162) 2.3 V5 / 4-motion (170 HP) | 2000-2005
Volkswagen Jetta IV (162) 2.8 i V6 (204 HP) | 1999-2005
Volkswagen Jetta IV (162) 3.2 R32 (241 HP) | 2002-2005
Volkswagen New Beetle / New Beetle Cabrio (9C) 2.0 (115 HP) | 1998-2006
Volkswagen New Beetle / New Beetle Cabrio (9C) 2.0 (115 HP) | 2007-2010
Volkswagen New Beetle / New Beetle Cabrio (9C) 1.6 (100 HP) | 1999-2000
Volkswagen New Beetle / New Beetle Cabrio (9C) 1.6 (102 HP) | 2000-2010
Volkswagen New Beetle / New Beetle Cabrio (9C) 1.8 Turbo (150 HP) | 1998-2010
Volkswagen New Beetle / New Beetle Cabrio (9C) 1.8 Turbo (180 HP) | 2001-2004
Volkswagen New Beetle / New Beetle Cabrio (9C) 1.9 TDI (90 HP) | 1998-2001
Volkswagen New Beetle / New Beetle Cabrio (9C) 1.9 TDI (100 HP) | 2000-2010
Volkswagen New Beetle / New Beetle Cabrio (9C) 1.9 TDI (105 HP) | 2005-2010
Volkswagen New Beetle / New Beetle Cabrio (9C) 2.3 V5 (170 HP) | 1999-2005
Volkswagen New Beetle / New Beetle Cabrio (9C) 2.3 V5 (150 HP) | 1999-2000
Volkswagen New Beetle / New Beetle Cabrio (9C) 2.5 V5 (150 HP) | 2005-2010
Volkswagen New Beetle / New Beetle Cabrio (9C) 3.2 RSi (225 HP) | 2000-2001
Volkswagen Polo IV (9N) 2.0 Total Flex (120 HP) | 2008-2012

OEM Cross Reference (BMC): CUPRA 10005004, 8L0133837B; VW GROUP 1J0129607AE, 1J0129620A, 1J0129620, 1JO129620

The Performance Promise

Buy with confidence. This filter is a direct-fit, drop-in replacement that requires no trimming or airbox modification. Backed by real automotive experts who understand the nuances of the 20V turbo and VR6 platforms. Optimized for those who demand championship-proven filtration.

Common Questions

Which vehicles does this filter fit?
BMC lists the Audi A3 8L and TT 8N, VW Golf IV, Jetta IV / Bora, New Beetle and Polo IV 2.0, Seat Leon I and Toledo II, and Skoda Octavia I.

Is it a direct fit?
Yes. It replaces the factory element in the stock airbox with no modifications.

Can I clean and reuse it?
Yes. Wash and re-oil it with a BMC regeneration kit.

How fine is the filtration?
The multi-layer oiled cotton traps particles down to 7 microns.

What will I notice after installing it?
Sharper throttle response and a stronger intake sound.

Fitment

Make	AudiVolkswagenSeatSkoda
Engine Size	1.4L 1.6L 1.8L 1.9L 2.0L 2.3L 2.5L 2.8L 3.2L
Year	1996 1997 1998 1999 2000 2001 2002 2003 2004 2005 2006 2007 2008 2009 2010 2011 2012

Installation & Tools

1996-2006 Audi Volkswagen A3 TT Golf Jetta 1.8L 3.2L Installation Guide

Wrench Time: 15-30 Minutes Difficulty: 3/10

Required Tools

Flathead screwdriver (or appropriate hose clamp driver)
Needle-nose pliers (optional, for stubborn clips)

Mechanic’s Pro Tip (The Gotcha):
The plastic clips on the factory airbox housing can become brittle with age and heat cycles. Exercise caution when unclipping them to prevent breakage. Also, ensure the Mass Air Flow (MAF) sensor harness is disconnected carefully to avoid damage to the connector or sensor.

Phase 1: Factory Component Removal

Locate the airbox housing. For most 1.8L and 3.2L models, it’s on the passenger side of the engine bay.
Carefully disconnect the electrical connector from the Mass Air Flow (MAF) sensor, typically located on the air intake tube between the airbox and throttle body. Push down on the tab and pull the connector straight off.
Loosen the hose clamp securing the intake tube to the throttle body or turbo inlet pipe using a flathead screwdriver or appropriate socket.
Unclip the two or three metal clips securing the top half of the airbox housing. Gently separate the top half from the bottom half and lift it, along with the intake tube, away from the vehicle.
Remove the old paper filter from the bottom half of the airbox.

Visual Reference: Disconnecting the MAF sensor and unlatching airbox clips

Phase 2: Aftermarket Installation

Ensure the bottom half of the airbox is clean and free of debris.
Place your new performance air filter into the lower airbox housing, ensuring it seats correctly around the edges.
Carefully align the top half of the airbox housing (with the intake tube and MAF sensor) over the new filter and the bottom housing. Engage the clips until they securely snap into place.
Reconnect the intake tube to the throttle body or turbo inlet pipe. Tighten the hose clamp firmly, ensuring a secure, airtight seal.
Re-connect the MAF sensor’s electrical connector until it clicks into place. Double-check all connections and clips before closing the hood.
Start the engine and listen for any unusual noises or air leaks. The engine may take a moment to adapt to the increased airflow.

Visual Reference: New performance air filter installed in the lower airbox housing

Disclaimer: This is a general guide provided for the 1996-2006 Audi Volkswagen A3 TT Golf Jetta 1.8L 3.2L. Always refer to your factory service manual for exact torque specifications and safety procedures.