Delphi ES20160 Oxygen Sensor - Front, Rear, Rear Left or Rear Right

Delphi ES20160 Oxygen Sensor Overview

The Delphi ES20160 is a heated oxygen sensor built for front-position applications on select Audi and Volkswagen models. It combines OE-based engineering with a 4-wire design, flat connector shape, and 18 x 1.5 mm thread size for direct-fit replacement in supported vehicles.

Compatible With Audi A4, A4 Quattro, A6, A6 Quattro, A8 Quattro, Allroad Quattro, RS6, S4, S6, S8, and Volkswagen Passat applications listed below.

Key Features

• Heated oxygen sensor for faster operating temperature
• 4-wire configuration
• Flat connector shape
• 18 x 1.5 mm thread size
• 620.0 overall length
• Package contents: oxygen sensor and instruction sheet
• Front position fitment on listed applications

OE-Based Design and Fitment

Delphi draws on more than a century of OE experience, and that heritage is reflected in the ES20160 oxygen sensor. This part is built for vehicles that require the specified 620 mm overall length and front sensor placement, including 2000-2005 Volkswagen Passat, 2000-2004 Audi A6 Quattro, 2001-2003 Audi A8 Quattro, 2003 Audi RS6, 2002-2003 Audi S6, 2001-2003 Audi S8, 2000-2002 Audi S4, 2000-2001 Audi A4, 2000-2001 Audi A4 Quattro, 2000-2001 Audi A6, and 2001 Audi Allroad Quattro. This part number, ES20160, also cross-references Bosch 16073 for the same application.

What This Oxygen Sensor Helps Address

• Check engine light related to oxygen sensor performance
• Incorrect air-fuel mixture readings
• Reduced fuel control from a slow or aging sensor
• Emissions test failures tied to sensor output
• Driveability issues caused by inaccurate exhaust feedback

Installation Notes and Tips

Verify connector shape, wire count, thread size, and overall length before installation. Confirm the sensor position on the vehicle, since this ES20160 application is listed for front placement on supported Audi and Volkswagen models. Compare the removed sensor to the new unit and follow the included instruction sheet during installation. For fitment searches, use phrases such as Delphi ES20160 oxygen sensor for 2000-2005 Volkswagen Passat front or 2000-2004 Audi A6 Quattro front oxygen sensor.

Quality Assurance

Delphi builds aftermarket parts using OE heritage and application knowledge developed through long-term supplier experience with major automakers. The ES20160 reflects that background in its sensor design and fitment-specific construction.