Hengst AS354M02 Engine Crankcase Breather Element

Engine Crankcase Breather Element for Audi Applications

The Hengst HEZ Engine Crankcase Breather Element, part number AS354M02, is an emission control filter component for select Audi models. It is listed with seal fitment notes and covers multiple Audi A4, A5, A6, A6 Quattro, A4 Quattro, A5 Quattro, and Q5 applications.

Key Features

• Brand: Hengst
• Brand line: HEZ Engine Crankcase Breather Element
• Part number: AS354M02
• Category: Emission Control > Filters
• Engine crankcase breather element for select Audi vehicles
• Fitment notes include seal requirement and VIN/date break details where listed

Detailed Description

Hengst AS354M02 is an HEZ Engine Crankcase Breather Element used in crankcase ventilation and emission control service. It fits 2006-2012 Audi A6, 2006-2012 Audi A6 Quattro, 2007-2012 Audi A4 Quattro, 2008-2012 Audi A5 Quattro, 2009-2012 Audi Q5, and 2007-2011 Audi A6, with the exact year coverage varying by model. This part number, AS354M02, is also listed for 2008-2010 Audi A5 Quattro and 2007-2009 Audi A4 Quattro applications.

The HEZ product line identifies Hengst crankcase breather service parts for emission system maintenance. For Audi A6 and Audi A6 Quattro applications, fitment includes a note for vehicles from VIN 4F-6-192 001 and from 05/2006 on the 2006 model year listings.

Common Issues This Part May Address

• Crankcase ventilation restriction
• Oil vapor separation service needs
• Emission control filter replacement
• Seal-related breather service on listed Audi applications
• Maintenance for vehicles with crankcase breather wear or contamination

Installation Notes and Tips

Verify the vehicle year, model, and VIN break before ordering. This listing includes “With Seal” notes for the covered applications, so confirm the existing housing and seal arrangement on the vehicle. Match the part number AS354M02 to the application shown for your Audi A4, A4 Quattro, A5 Quattro, A6, A6 Quattro, or Q5.

Quality Assurance

Hengst is an established filtration brand, and the HEZ Engine Crankcase Breather Element line is cataloged for direct application matching on the vehicles listed above. This part cross-references no additional part numbers in the provided data.

• Fits 2009-2012 Audi Q5, N/A; With Seal
• Fits 2007-2011 Audi A6, N/A; With Seal
• Fits 2008-2010 Audi A5 Quattro, N/A; With Seal
• Fits 2007-2009 Audi A4 Quattro, N/A; With Seal
• Fits 2007-2008 Audi A6 Quattro, N/A; With Seal
• Fits 2006 Audi A6, N/A; With Seal; From VIN 4F-6-192 001; From 05/2006
• Fits 2006 Audi A6 Quattro, N/A; With Seal; From VIN 4F-6-192 001; From 05/2006