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Audi Oxygen Sensor – Upstream – Bosch 17225

Audi Oxygen Sensor – Upstream – Bosch 17225

BOSCH
Disponibilité:
Rupture de stock
UGC 17225
Épuisé
$120.95 - $120.95
$120.95
$120.95 - $120.95
$120.95
CALIFORNIA WARNING

Handling passenger or off-highway motor vehicle parts can expose you to chemicals such as phthalates and lead, which can cause cancer and reproductive harm. To minimize exposure, service the vehicle in a well-ventilated area, wear gloves, and wash your hands. For more information see www.P65Warnings.ca.gov/motor-vehicle-parts.

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The Bosch 17225 upstream oxygen sensor is designed for Audi RS5 (4.2L V8, 2013–2015) and A8 Quattro (4.2L V8, 2011–2012). It measures exhaust oxygen content before the catalytic converter to enable precise fuel control, reducing emissions and optimizing engine performance. This OE-quality sensor restores factory-level efficiency.

Key Features & Benefits

  • Upstream Position: Mounted before the catalytic converter for accurate engine-out air-fuel ratio measurement.
  • Heated 4-Wire Design: Fast warm-up ensures consistent readings even during cold starts.
  • OEM Cross-Reference: Direct replacement for Audi RS5 and A8 Quattro 4.2L V8 models.
  • Emissions Compliance: Helps maintain proper fuel mixture for cleaner exhaust and passing emissions tests.
  • Bosch Reliability: Backed by decades of oxygen sensor manufacturing expertise.

Vehicle Fitment

Make Model Years Engine
Audi RS5 2013–2015 4.2V8
Audi A8 Quattro 2011–2012 4.2V8

Technical Specifications

Part Number 17225
Brand Bosch
Type Oxygen Sensor
Position Upstream

Installation Notes

Professional installation recommended to ensure proper sensor threading and wiring routing.

About Bosch

Bosch is the original inventor of the automotive oxygen sensor and continues to be a leading supplier of high-quality emission control components.

This part also goes by the following cross reference.

Cross Reference Part Number:

Fits These Vehicles 2 applications
Audi
Make Model Engine Years
Audi RS5 4.2V8 2013–2015
Audi A8 Quattro 4.2V8 2011–2012
Fits 2 vehicle applications Check vehicle fitment before ordering View fitment

About this Oxygen Sensor

The BOSCH 17225 oxygen sensor measures the oxygen in the exhaust so the engine computer can keep the fuel mixture correct. Sensors before the catalytic converter control the mixture; sensors after it monitor the converter's efficiency.

Frequently asked questions

What does an oxygen sensor do?

It reports how rich or lean the exhaust is, and the engine computer adjusts fuel delivery in response. A faulty sensor can make the engine run too rich or too lean.

What are the signs of a failing oxygen sensor?

A check-engine light with oxygen-sensor or fuel-trim codes, poorer fuel economy, rough idle, or a failed emissions test. Exhaust leaks near the sensor can cause similar codes, so check for those too.

How do I know which sensor I need?

Sensors are specific to their position: upstream (before the catalytic converter) or downstream (after it), and on V engines, bank 1 or bank 2. The fault code usually identifies the position; check the product details for the position this sensor fits.

Can I replace an oxygen sensor myself?

Usually, yes, using an oxygen-sensor socket. Many new sensors come with anti-seize already on the threads; if not, use a sensor-safe compound only on the threads, and keep it off the sensor tip.

How do I make sure this oxygen sensor fits my car?

Compare the part numbers listed on this page with the number on your old part or in your vehicle's parts catalog, and check the fitment information. If you are unsure, contact us with your VIN before ordering.

Euromotiv is an independent retailer of OEM, Genuine, and aftermarket automotive parts. We are not affiliated with, endorsed by, or authorized by Audi AG, Volkswagen AG, BMW AG, Mercedes-Benz Group AG, Dr. Ing. h.c. F. Porsche AG, MINI, or any other vehicle manufacturer. All trademarks, logos, and brand names are the property of their respective owners and are used solely for identification and compatibility purposes.