NTK
NTK Oxygen Sensor 25173
NTK Oxygen Sensor 25173
Part number: 3PD38
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- Ships direct from the brand or supplier
- Tracking emailed when it ships
- Free fitment check before you order
NTK Oxygen Sensor 25173. Reading the trouble code first points you to the right sensor. The fitment section lists 7 applications.
Specifications
- Brand: NTK
- Part type: Sensor
Fitment
- 2006 Audi A4 S Line, Trendy, Base, Limited Edition, Elite, Luxury, S Line Sport, Cabrio, Vangard, Cabriolet
- 2005 - 2006 Audi A4 Quattro Base, Avant, S Line, Cabriolet, Elite
- 2006 Audi A4 Quattro DTM, Vangard
- 2005 Audi A4 Quattro Luxury
- 2010 - 2011 Audi A6 Luxury, Base, Elite
- 2010 Audi A6 Sport
- 2009 Audi A6 Quattro Elite, Base, Avant
What it does
A failed sensor usually sets a check-engine code and can cause poor running or wrong readings. Electrical faults often show up as warning lights, rough running or no-start problems, and the right replacement part clears the cause rather than the symptom.
Installation & tips
- Read the code, check the wiring and connector, and clear codes after the new sensor is in.
- Connector and wiring: Corroded connectors mimic a bad sensor.
- Disconnect the battery before you unplug or splice any wiring, and test everything works before you refit trim panels.
FAQ
How many vehicles is it listed for?
7 applications are listed in the fitment section above.
Can I install it myself?
Many owners do this job at home with basic tools and a service manual for their vehicle. If you are not sure, have it fitted by a qualified mechanic.
What should I check before ordering?
Compare the part number, specifications and fitment on this page with your vehicle and with the part you are replacing.
Before you order
- Measure the part you are replacing and compare it with the specifications above.
NTK sensor: what to know
A failed sensor usually sets a check-engine code and can cause poor running or wrong readings.
Fitment notes
- Specs, lead time and warranty come from NTK and can change. The details above this guide are the latest we have.
Not sure it fits? Tell us exactly what you drive and we'll confirm fitment first. It's free and saves a return.
Ask about fitmentWhat else to plan for
- Connector and wiring. Corroded connectors mimic a bad sensor.
More for your car: Oxygen (O2) Sensors · Batteries & electrical
Questions about sensor
Will this fit my car?
Will a new sensor clear my check-engine light?
Where do specs and warranty details come from?
Questions & answers
No questions yet about this part. Ask about fitment, what's in the box or installation and we'll answer here.