Facet 10.4001 Air Charge Temperature Sensor

Facet 10.4001 Air Charge Temperature Sensor

Facet 10.4001 is an air charge temperature sensor for select Audi, Volkswagen, and Porsche applications. It provides the intake air temperature signal used by the engine management system for accurate fuel and ignition control.

Key Features

• Air charge temperature sensor for engine management input
• Direct fit for select Audi A4, A4 Quattro, TT, TT Quattro, Allroad Quattro, A6, A6 Quattro, S4, Volkswagen Golf, Beetle, Jetta, Passat, and Porsche 911 applications
• Fits 1996-2006 vehicles listed in the fitment data
• Facet part number 10.4001 for catalog and service reference
• Compatible with intake air temperature sensing locations used on the listed vehicles

Detailed Description

This Facet 10.4001 air charge temperature sensor is used to report incoming air temperature to the engine control system. On turbocharged and naturally aspirated applications, that signal supports proper air-fuel calculation and ignition timing. It is a direct replacement choice for drivers searching for an Audi A4 air charge temperature sensor, Volkswagen Passat intake air temperature sensor, or Facet 10.4001 replacement for select Audi and Volkswagen models.

Fits 2003-2006 Audi A4, N/A; Fits 1997-2001 Audi A4, N/A; Fits 2000-2006 Audi TT, N/A; Fits 2000-2006 Audi TT Quattro, N/A; Fits 2000-2006 Volkswagen Golf, N/A; Fits 2004-2005 Audi A4 Quattro, N/A; Fits 1997-2001 Audi A4 Quattro, N/A; Fits 2001-2005 Audi Allroad Quattro, N/A; Fits 1998-2005 Volkswagen Passat, N/A; Fits 2003 Audi A4, N/A, From Chassis/VIN 8E-3-100 001; Fits 2003 Audi A4 Quattro, N/A, From Chassis/VIN 8E-3-100 001; Fits 2003 Volkswagen Beetle, N/A, To Chassis/VIN 1C-3-421 791; Fits 2003 Volkswagen Jetta, N/A, To Chassis/VIN 9M-3-069 833; Fits 2003 Volkswagen Passat, N/A, To Chassis/VIN 3B-3-347 400; To Chassis/VIN 3B-3E-318 300; Fits 1998-2002 Audi A6 Quattro, N/A; Fits 2000-2002 Audi S4, N/A; Fits 1999-2002 Volkswagen Beetle, N/A; Fits 2000-2002 Volkswagen Jetta, N/A; Fits 1998-2001 Audi A6, N/A; Fits 1996-1997 Porsche 911, N/A.

Common Issues This Sensor Can Address

• Incorrect intake air temperature readings
• Rough idle caused by inaccurate engine temperature input
• Fuel mixture errors related to air charge data
• Check engine light conditions tied to sensor faults
• Poor drivability after sensor failure or contamination

Installation Notes and Tips

Verify the connector style, chassis/VIN break, and engine application before ordering. Compare the original sensor location and connector indexing to the replacement part number 10.4001 before installation. Clear diagnostic trouble codes after replacement and confirm live data readings with a scan tool.

Quality Assurance

Facet manufactures engine management components for service replacement applications. Part number 10.4001 is cataloged for the listed Audi, Volkswagen, and Porsche fitments.