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Audi Oxygen Sensor – Upstream – Bosch 17023

Audi Oxygen Sensor – Upstream – Bosch 17023

BOSCH
Availability:
Out of stock
SKU 17023
Sold out
$116.95 - $116.95
$116.95
$116.95 - $116.95
$116.95
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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This Bosch 17023 upstream oxygen sensor is designed for the 2012-2014 Audi A8 Quattro with the 6.3L W12 engine. It measures exhaust oxygen concentration to optimize air-fuel mixture, improving fuel efficiency and reducing emissions. Direct replacement for OE, built to last 100,000 miles.

Key Features & Benefits

  • Direct OE replacement: Exact fit for Audi A8 Quattro 6.3L W12 upstream position.
  • Improved fuel efficiency: Helps maintain optimal air-fuel ratio for better mileage.
  • Reduced emissions: Monitors catalytic converter performance to lower exhaust pollutants.
  • Durable construction: Steel housing resists corrosion and heat for long lifespan.
  • Easy installation: Plug-and-play design, no modifications needed.

Vehicle Fitment

Make Model Years Engine
Audi A8 Quattro 2012–2014 6.3W12

Technical Specifications

Part Number 17023
Weight 0.313056 lb
Material Steel
Position Upstream

Installation Notes

Plug-and-play replacement; professional installation recommended if not experienced.

About BOSCH

Bosch is a globally trusted automotive component manufacturer known for precision engineering and OE-quality parts.

This part also goes by the following cross reference.

Cross Reference Part Number:

Fits These Vehicles 1 application
D4 A8
Make Model Engine Years
Audi A8 Quattro 6.3W12 2012–2014
Fits 1 vehicle applications Check vehicle fitment before ordering View fitment

About this Oxygen Sensor

The BOSCH 17023 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.