NGK O2 SENSORS 25083 right oxygen sensor for the 2005-2008 Audi A6 Quattro V6 3.2L, the 2009-2011 A6 Quattro V6 3.0L and other vehicles measures oxygen in the exhaust and sends the reading to the engine computer. That closed-loop feedback helps the ECU control the air-fuel ratio and lets the OBDII system flag fuel delivery or catalytic converter efficiency problems.
A check engine light, poorer fuel economy or a rough idle can mean the sensor is worn. A leaking exhaust joint, damaged wiring or a tired catalytic converter can be behind the same signs, so find the cause before buying. This listing is one sensor for the downstream right position; the 2005-2008 Audi A6 Quattro V6 3.2L takes one in that position, and the car's other sensors are separate parts.
The 2005-2008 Audi A6 Quattro V6 3.2L, the 2009-2011 A6 Quattro V6 3.0L, the 2006-2009 Audi A4 Quattro V6 3.2L and other vehicles all fit this oxygen sensor. Own a different Audi or another make? Look up your car in the "Vehicles it fits" section.
Fit and size
Build and materials
Interchange: 75-3707 · 234-4414
06E906265P · 15157
This part cross-references / interchanges with the following part numbers:
Will this oxygen sensor work on a 2006-2009 Audi A6 V6 3.2L?
Yes. NGK O2 SENSORS 25083 is a downstream right sensor listed for the 2006-2009 Audi A6 V6 3.2L. For any other car, look it up in the "Vehicles it fits" section.
What hex size and thread does this downstream oxygen sensor have?
NGK O2 SENSORS 25083 has a 7/8" (22 mm) hex and an M18 - 1.5 thread.
Is this a heated narrow-band oxygen sensor?
Yes. This sensor is heated and is a narrow-band, switching zirconia type with a ceramic element.
How can I tell if my downstream oxygen sensor is going bad?
A check engine light, poorer fuel economy or a rougher idle can all be signs. A shop can read the stored codes to see which sensor is flagged.
Does NGK 25083 cross to 06E906265P?
Yes. 06E906265P is listed as an interchange number for NGK O2 SENSORS 25083.
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