O2 Oxygen Sensor for Audi A4/A6 Porsche Cayenne VW Passat Touareg (2000-2006)

Turn off that glowing Check Engine Light and restore the fuel efficiency of your German machine without the nightmare of splicing universal wires.

Direct-Fit Oxygen Sensor Set (4-Pack) for Audi, VW & Porsche (1470mm Wire Length)

If you own an Audi, VW, or Porsche from the early 2000s—whether it's the B5/B6 Passat, the MK4 Beetle, or the powerhouse Cayenne—you are likely familiar with the dreaded Check Engine Light (CEL). Often triggered by codes like P0171 (System Too Lean) or P0420 (Catalyst Efficiency), a failing O2 sensor can ruin your fuel economy and cause your vehicle to fail emissions testing. VAG (Volkswagen Audi Group) engines are notoriously sensitive to electrical resistance, and using generic "universal" sensors that require wire splicing is often a recipe for disaster.

This set of four oxygen sensors is designed as a direct replacement solution with the correct factory connectors. With a wire harness length of 1470mm (approx. 58 inches), these sensors are engineered to reach the necessary harness clips without tension or modification. The plug-and-play design means you don’t have to cut, strip, or solder wires, eliminating the high-resistance connections that plague DIY repairs. Whether you are replacing downstream sensors to clear a catalyst code or swapping out aging upstream sensors that are causing rough idling, this kit provides the data accuracy your ECU demands.

From the robust 1.8T 20V to the rare W8 Passat and the 4.5L V8 in the Cayenne, these sensors cover a wide range of German engineering. They feature a 4-wire configuration with a black plug, ensuring compatibility with your stock harness. Restore your vehicle's closed-loop performance and get back to enjoying the drive without the dashboard warning lights.

Why You Need This Upgrade

• Direct Plug-and-Play: Features the correct OEM-style connector, eliminating the need for cutting or splicing sensitive sensor wires.
• Extended Reach: Generous 1470mm wire length ensures fitment for positions requiring long cable runs, such as post-cat sensors.
• Emissions Compliance: Accurate oxygen readings help your catalytic converter function properly, helping you pass smog tests.
• Fuel Economy Restoration: Replacing lazy or dead sensors helps the ECU adjust fuel trim correctly, improving MPG.
• Complete Set: Includes four sensors, perfect for addressing multiple banks on V6/V8 engines or keeping spares for future maintenance.

Installation Notes

These sensors come with pre-applied anti-seize on the threads (or it is recommended to apply it if not present) to prevent the threads from galling during future removal. Pro Tip: An O2 sensor socket (slotted socket) is highly recommended for removal, as heat cycling often causes the old sensors to seize in the exhaust pipe. Always trace the wire length before installation to ensure 1470mm is the correct length for your specific sensor position (Upstream vs. Downstream), as position varies by engine code.

Replaces These OEM Applications & Part Numbers

• Audi A4 Quattro 1.8L L4 2000-2006
• Audi A4 2.8L V6 2000-2006
• Audi TT Quattro 1.8L L4 2001-2006
• Audi A6 3.0L V6 2002-2005
• Audi A6 Quattro 3.0L V6 2002-2005
• Porsche Cayenne 4.5L V8 2003-2005
• Volkswagen Beetle 1.8L L4 / 1.9L L4 / 2.0L L4 2001
• Volkswagen Passat 1.8L L4 / 2.8L V6 / 4.0L W8 2001-2005
• Volkswagen Touareg 3.2L V6 2004-2006
• Volkswagen Phaeton 4.2L V8 2004-2006

234-4809, 06C906265A, 06C906265E, 06C 906 265 A, 06C 906 265 E, SG1178

Don't let a cheap sensor ruin your German car's performance—install this Direct Fit Oxygen Sensor set for reliable, accurate data.