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Bosch Oxygen Sensor (Downstream) 16329 / 4H0906265C for Audi S8/S7/RS7/A8 Quattro/S6 (2013-2018)
Bosch Oxygen Sensor (Downstream) 16329 / 4H0906265C for Audi S8/S7/RS7/A8 Quattro/S6 (2013-2018)
Bosch Oxygen Sensor (Downstream) 16329 / 4H0906265C for Audi S8/S7/RS7/A8 Quattro/S6 (2013-2018)
Bosch Oxygen Sensor (Downstream) 16329 / 4H0906265C for Audi S8/S7/RS7/A8 Quattro/S6 (2013-2018)
Bosch Oxygen Sensor (Downstream) 16329 / 4H0906265C for Audi S8/S7/RS7/A8 Quattro/S6 (2013-2018)
Bosch Oxygen Sensor (Downstream) 16329 / 4H0906265C for Audi S8/S7/RS7/A8 Quattro/S6 (2013-2018)
Bosch Oxygen Sensor (Downstream) 16329 / 4H0906265C for Audi S8/S7/RS7/A8 Quattro/S6 (2013-2018)
Bosch Oxygen Sensor (Downstream) 16329 / 4H0906265C for Audi S8/S7/RS7/A8 Quattro/S6 (2013-2018)
Bosch Oxygen Sensor (Downstream) 16329 / 4H0906265C for Audi S8/S7/RS7/A8 Quattro/S6 (2013-2018)
Bosch Oxygen Sensor (Downstream) 16329 / 4H0906265C for Audi S8/S7/RS7/A8 Quattro/S6 (2013-2018)

Bosch Oxygen Sensor (Downstream) 16329 / 4H0906265C for Audi S8/S7/RS7/A8 Quattro/S6 (2013-2018)

BOSCH
Availability:
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SKU 16329
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$70.95 - $70.95
$70.95
$70.95 - $70.95
$70.95
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 Oxygen Sensor 16329 (OEM 4H0906265C) is a downstream sensor designed for Audi performance models equipped with the 4.0L V8 engine, including the S8, S7, RS7, A8 Quattro, and S6. This OE-quality sensor provides accurate exhaust gas monitoring behind the catalytic converter, ensuring proper emission control and engine efficiency. Direct replacement for models from 2013-2018.

Key Features & Benefits

  • Direct Fit OE Replacement: Replaces OEM part 4H0906265C with identical connector and thread.
  • Downstream Position: Designed for post-catalyst monitoring to verify converter efficiency.
  • Bosch Planar Technology: Fast light-off and accurate reading from cold start.
  • Durable Construction: Stainless steel housing resists corrosion and thermal shock.
  • 100,000-Mile Service Life: Engineered for long-lasting performance.

Vehicle Fitment

Make Model Years Engine
Audi S8 2013–2018 4.0V8
Audi S7 2013–2018 4.0V8
Audi RS7 2014–2018 4.0V8
Audi A8 Quattro 2013–2018 4.0V8
Audi S6 2013–2017 4.0V8

Technical Specifications

Part Number 16329 / 4H0906265C
Sensor Type Oxygen Sensor (Downstream)
Position Downstream (post-catalyst)
Material Steel
Weight 0.4 lb (approx)
OE Cross Reference 4H0906265C

Installation Notes

Plug-and-play downstream replacement; professional installation recommended to ensure proper routing and torque.

About BOSCH

Bosch is the inventor of the automotive oxygen sensor and a trusted OE supplier for Audi, delivering precision-engineered components for over 50 years.

This part also goes by the following cross reference.

Cross Reference Part Number:

Fits These Vehicles 5 applications
D4 A8
Make Model Engine Years
Audi S8 4.0V8 2013–2018
Audi A8 Quattro 4.0V8 2013–2018
4G A7
Make Model Engine Years
Audi S7 4.0V8 2013–2018
Audi RS7 4.0V8 2014–2018
C7 A6
Make Model Engine Years
Audi S6 4.0V8 2013–2017
Audi
Make Model Engine Years
No vehicles listed for this group.
Fits 5 vehicle applications Check vehicle fitment before ordering View fitment

About this Oxygen Sensor

The BOSCH 16329 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.