Performance Air Filter for Mercedes C-Class W202, ML W163, CLK C208, SLR, Opel Astra H / Zafira (1991-2013)

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High-Flow BMC Performance Intake Upgrade for Mercedes-Benz M112 and M113 Engine Families

Who It’s For: Designed specifically for Mercedes-Benz enthusiasts running the legendary M112 V6 and M113 V8 powerplants, as well as Ford Falcon owners looking to optimize their 4.0L I6 or 5.0L Windsor setups.

The Problem: Factory paper filters are designed for cost-effective manufacturing, not airflow. In engines like the Mercedes M112 V6, the stock filtration media creates significant restriction as it loads with dust, leading to sluggish throttle response and reduced efficiency. Furthermore, standard filters allow particles up to 10 microns to pass through, which is less than ideal for long-term cylinder wall protection.

The Solution: This BMC performance filter replaces the restrictive factory paper with multi-layered cotton gauze soaked in low-viscosity oil. We engineered this part to correct the factory design flaws of the M113 V8 and similar high-displacement engines, delivering a 7-micron filtration rating while significantly increasing the volume of air available during high-load pulls. Unlike the stock unit, this is a "Full Moulding" design with no welded joints, ensuring it won’t crack or leak under engine bay heat.

Why This is the Ultimate Upgrade

Enhanced Induction Efficiency: The multi-layered cotton media reduces pressure drop, allowing the engine to pull air more freely than the dense OEM paper element.
Industrial-Grade Durability: Constructed using a proprietary red rubber that is resistant to heat soak and petrol fumes, ensuring a perfect seal inside the airbox for the life of the vehicle.
Washable & Sustainable: This is the last filter you’ll buy. It is fully regenerable using a standard cleaning kit, eliminating the need for disposable filters every service interval.

Technical Specifications

Fitment	Mercedes-Benz C-Class W202, M-Class W163, CLK C208, SLR McLaren R199; Opel / Vauxhall / Chevrolet / Holden Astra H and Zafira A / B; Ford Falcon (AU)
Dimensions	224mm x 292mm panel
Part Number	BMC FB139/01

Compatibility & OEM Reference

Fits the following vehicles (BMC fitment data):

Chevrolet Astra III 1.6 Turbo (180 HP) | 2007-2009
Chevrolet Astra III 1.7 Cdti (110 HP) | 2007-2009
Chevrolet Astra III 1.7 Cdti (125 HP) | 2007-2009
Chevrolet Astra III 1.9 Cdti (100 HP) | 2005-2009
Chevrolet Astra III 1.9 Cdti (150 HP) | 2004-2009
Chevrolet Astra III 1.9 Cdti / 16V (120 HP) | 2004-2009
Chevrolet Astra III 2.2 (147 HP) | 2004-2009
Chevrolet Nabira 2.2 16V (147 HP) | 2000-2005
Chevrolet Zafira I 2.2 16V (147 HP) | 2000-2005
Chevrolet Zafira II 1.6 CNG Turbo (150 HP) | 2005-2010
Chevrolet Zafira II 1.7 Cdti (110 HP) | 2008-2010
Chevrolet Zafira II 1.7 Cdti (125 HP) | 2008-2010
Chevrolet Zafira II 1.9 Cdti (101 HP) | 2005-2010
Chevrolet Zafira II 1.9 Cdti (120 HP) | 2005-2010
Chevrolet Zafira II 1.9 Cdti (150 HP) | 2005-2010
Ford Falcon V 4.0 i XR6 | 1995-1999
Ford Falcon V 5.0 V8 | 1991-2002
Ford Falcon VI 4.0 i | 2000-2002
Holden Astra (AH) 2.2 (147 HP) | 2004-2009
Holden Zafira 2.2 16V (147 HP) | 2000-2005
Mercedes C-Class (W202/S202) AMG C 36 (280 HP) | 1994-2000
Mercedes C-Class (W202/S202) C180 (121 HP) | 1994-2000
Mercedes C-Class (W202/S202) C180 (122 HP) | 1993-2000
Mercedes C-Class (W202/S202) C180 T (130 HP) | 2000-2001
Mercedes C-Class (W202/S202) C200 (136 HP) | 1994-2000
Mercedes C-Class (W202/S202) C200 CDI (102 HP) | 1998-2001
Mercedes C-Class (W202/S202) C200 D (75 HP) | 1993-1998
Mercedes C-Class (W202/S202) C200 D (88 HP) | 1996-1998
Mercedes C-Class (W202/S202) C200 Kompressor (180 HP) | 1995-1996
Mercedes C-Class (W202/S202) C200 Kompressor (192 HP) | 1996-2000
Mercedes C-Class (W202/S202) C200 T Kompressor (164 HP) | 2000-2001
Mercedes C-Class (W202/S202) C220 (150 HP) | 1993-1996
Mercedes C-Class (W202/S202) C220 CDI (125 HP) | 1997-2001
Mercedes C-Class (W202/S202) C220 D (75 HP) | 1996-1998
Mercedes C-Class (W202/S202) C220 D (95 HP) | 1993-1998
Mercedes C-Class (W202/S202) C230 (150 HP) | 1996-1997
Mercedes C-Class (W202/S202) C230 Kompressor (193 HP) | 1995-2000
Mercedes C-Class (W202/S202) C240 V6 (170 HP) | 1997-2001
Mercedes C-Class (W202/S202) C250 D (113 HP) | 1993-1997
Mercedes C-Class (W202/S202) C250 TD (150 HP) | 1995-2001
Mercedes C-Class (W202/S202) C280 (193 HP) | 1993-1997
Mercedes C-Class (W202/S202) C280 V6 (197 HP) | 1997-2001
Mercedes M-Class (W163) AMG ML 55 (347 HP) | 2000-2005
Mercedes M-Class (W163) ML 230 (150 HP) | 1997-2001
Mercedes M-Class (W163) ML 320 (218 HP) | 1997-2002
Mercedes M-Class (W163) ML 350 (235 HP) | 2003-2005
Mercedes M-Class (W163) ML 350 (245 HP) | 2002-2005
Mercedes M-Class (W163) ML 400 CDI (250 HP) | 2001-2005
Mercedes M-Class (W163) ML 430 (271 HP) | 1998-2001
Mercedes M-Class (W163) ML 500 (292 HP) | 2001-2005
Mercedes CLK (C208) CLK 200 (136 HP) | 1997-2000
Mercedes CLK (C208) CLK 200 Kompressor (163 HP) | 2000-2003
Mercedes CLK (C208) CLK 200 Kompressor (192 HP) | 1997-2000
Mercedes CLK (C208) CLK 230 Kompressor (193 HP) | 1997-2000
Mercedes CLK (C208) CLK 230 Kompressor (197 HP) | 2000-2003
Mercedes CLK (C208) CLK 320 (218 HP) | 1997-2003
Mercedes SLR McLaren (R199) 5.4 V8 722 Edition S Roadster [2 Filters Required] (650 HP) | 2009-2010
Mercedes SLR McLaren (R199) 5.4 V8 722 EditionCoupe [2 Filters Required] (650 HP) | 2006-2010
Mercedes SLR McLaren (R199) 5.4 V8 McLaren Edition [2 Filters Required] (650 HP) | 2011-2013
Mercedes SLR McLaren (R199) 5.4 V8 Roadster [2 Filters Required] (626 HP) | 2007-2010
Mercedes SLR McLaren (R199) 5.4 V8 Stirling Moss [2 Filters Required] (660 HP) | 2009
Mercedes SLR McLaren (R199) 5.4 V8Coupe [2 Filters Required] (626 HP) | 2003-2009
Opel Astra H / Astra H GTC / Twintop 1.6 Turbo (180 HP) | 2007-2009
Opel Astra H / Astra H GTC / Twintop 1.7 Cdti (110 HP) | 2007-2009
Opel Astra H / Astra H GTC / Twintop 1.7 Cdti (125 HP) | 2007-2009
Opel Astra H / Astra H GTC / Twintop 1.9 Cdti (100 HP) | 2005-2009
Opel Astra H / Astra H GTC / Twintop 1.9 Cdti (150 HP) | 2004-2009
Opel Astra H / Astra H GTC / Twintop 1.9 Cdti / 16V (120 HP) | 2004-2009
Opel Astra H / Astra H GTC / Twintop 2.2 (147 HP) | 2004-2009
Opel Zafira A 2.2 16V (147 HP) | 2000-2005
Opel Zafira B 1.6 CNG Turbo (150 HP) | 2005-2010
Opel Zafira B 1.7 Cdti (110 HP) | 2008-2010
Opel Zafira B 1.7 Cdti (125 HP) | 2008-2010
Opel Zafira B 1.9 Cdti (101 HP) | 2005-2010
Opel Zafira B 1.9 Cdti (120 HP) | 2005-2010
Opel Zafira B 1.9 Cdti (150 HP) | 2005-2010
Opel Zafira B 2.2 (150 HP) | 2005-2010
Vauxhall Astra MK V 1.6 Turbo (180 HP) | 2007-2009
Vauxhall Astra MK V 1.7 Cdti (110 HP) | 2007-2009
Vauxhall Astra MK V 1.7 Cdti (125 HP) | 2007-2009
Vauxhall Astra MK V 1.9 Cdti (100 HP) | 2005-2009
Vauxhall Astra MK V 1.9 Cdti (150 HP) | 2004-2009
Vauxhall Astra MK V 1.9 Cdti / 16V (120 HP) | 2004-2009
Vauxhall Astra MK V 2.2 (147 HP) | 2004-2009
Vauxhall Zafira MK I 2.2 16V (147 HP) | 2000-2005
Vauxhall Zafira MK II 1.6 CNG Turbo (150 HP) | 2005-2010
Vauxhall Zafira MK II 1.7 Cdti (110 HP) | 2008-2010
Vauxhall Zafira MK II 1.7 Cdti (125 HP) | 2008-2010
Vauxhall Zafira MK II 1.9 Cdti (101 HP) | 2005-2010
Vauxhall Zafira MK II 1.9 Cdti (120 HP) | 2005-2010
Vauxhall Zafira MK II 1.9 Cdti (150 HP) | 2005-2010

SLR McLaren models marked [2 Filters Required] use two FB139/01 filters.

OEM Cross Reference (BMC): FORD 5H2Z9601AA; MERCEDES-BENZ 6040940104, 6040940404, 6040941304, 6040941404, A6040940104, A6040940404, A6040941304, A6040941404

The Performance Promise

Buy with confidence. As specialists in European and high-performance induction systems, we ensure every filter meets or exceeds the demands of high-heat environments. Backed by real automotive experts and fast shipping.

Common Questions

Which vehicles does this filter fit?
BMC lists the Mercedes C-Class W202, ML W163, CLK C208 and SLR McLaren, the Opel / Vauxhall / Chevrolet / Holden Astra H and Zafira, and the Ford Falcon 4.0 / 5.0.

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	Mercedes BenzOpelVauxhallChevroletHoldenFord
Engine Size	1.6L 1.7L 1.8L 1.9L 2.0L 2.1L 2.2L 2.3L 2.4L 2.5L 2.8L 3.2L 3.6L 3.7L 4.0L 4.3L 5.0L 5.4L
Year	1991 1992 1993 1994 1995 1996 1997 1998 1999 2000 2001 2002 2003 2004 2005 2006 2007 2008 2009 2010 2011 2012 2013

Installation & Tools

The Wrench Time

Estimated Time: 25-35 Minutes
Difficulty: 2/10 - Simple hand-tool job, but demands patience with brittle Mercedes plastic tabs and vacuum seals.

Tools You Will Need

10mm wrench or socket (battery negative terminal)
T25 Torx driver (air cleaner housing case screws)
Flathead screwdriver or nylon panel popper (MAF wire bail release and duct clips)
Lint-free microfiber towel (airbox tray degreasing & debris removal)
Silicone spray / rubber conditioner (optional, for airbox mounting grommets)

Mechanic’s Pro Tip (The "Gotcha"):
On the Mercedes Benz CLK-Class (W208/W209 platform), the integrated engine cover/air cleaner housing locks directly onto the Mass Airflow (MAF) sensor neck via a brittle rear retaining bail clip and four rubber mounting grommets. DO NOT yank the cover upward by force. If you muscle it, you will snap the aging rear latch tabs or shear off the front valve cover mounting posts, resulting in a false-air vacuum leak and immediate P0171/P0174 lean codes. Unlatch the rear clip first and lift straight up with even, gentle pressure.

Phase 1: Removing the Factory Part

Disconnect the Battery: Always start by disconnecting the negative battery terminal using a 10mm wrench to prevent the ECU from registering open-circuit sensor faults during disassembly.
Remove the Front Engine Cover: Carefully pull straight up on the front decorative engine trim piece of your Mercedes Benz CLK-Class using your hands or a nylon panel popper to release it from its forward ball studs.
Detach Intake Snorkels: Compress and disconnect the left and right flexible fabric intake ducts from the front radiator core support and the main airbox inlets. Inspect the accordion fabric for dry rot.
Release the MAF Retaining Clip: Locate the metal or plastic spring bail clip securing the rear of the intake housing to the Mass Airflow Sensor elbow near the firewall. Gently pry the latch backward using a flathead screwdriver to release tension.
Extract Air Cleaner Assembly: Lift the entire dual-channel air cleaner assembly straight up off the four engine valve cover mounting posts and remove it from the engine bay.
Open the Filter Chambers: Place the housing on a clean workbench upside down. Using a T25 Torx driver, remove the perimeter screws securing the lower filter access plates and lift the old paper filters out.

Phase 2: Installing the Performance Air Filter

Clean Housing & Inspect MAF Seal: Wipe clean the interior channels of the Mercedes Benz CLK-Class airbox using a lint-free microfiber towel to remove ingested sand and road debris. Inspect the green/black rubber MAF sealing ring on the engine elbow; ensure it is fully seated and tear-free.
Drop in the Performance Filters: Seat the new high-flow performance air filters into each side of the air cleaner housing. Ensure the thick urethane perimeter gasket seats 100% flush inside the housing groove without pinching or folding.
Fasten Access Covers: Reinstall the lower access plates and hand-thread the screws. Tighten snugly with your T25 Torx driver in a criss-cross pattern. Do not overtighten, or you will strip the plastic threads in the factory housing.
Reinstall Airbox Assembly: Apply a light dab of silicone lubricant to the underside rubber grommets. Align the rear collar over the MAF housing, press firmly downward until the grommets pop onto the engine studs, and lock the rear retaining bail clip securely over the MAF neck.
Reattach Ducts & Front Trim: Snap both intake snorkels back onto the airbox and radiator inlet ports. Realign the front silver-star engine beauty cover and press down firmly until the locking clips click.
Reconnect Battery & Perform Throttle Trim: Reattach the negative battery terminal using your 10mm wrench. Turn the ignition key to Position II (ON, do not crank) for 30 seconds to allow the throttle actuator to recalibrate. Start the engine and do not touch the gas pedal for 20 seconds while the ECU trims idle air-fuel ratios to the increased airflow volume.

Disclaimer: This is a general guide provided for the Mercedes Benz CLK-Class. Always refer to your factory service manual for exact torque specifications and safety procedures.