Bosch Upstream Oxygen Sensor (17026) – Fits Audi A8 Quattro 2012-2014

Bosch oxygen sensor (part 17026) is a high-quality upstream (pre-catalyst) sensor for Audi A8 Quattro models with the 6.3L W12 engine. It accurately measures exhaust oxygen content to optimize the air-fuel mixture, enhancing performance and fuel efficiency while reducing emissions. OE-quality design ensures a direct fit and long service life.

Key Features & Benefits

• Precise upstream measurement: Critical for accurate air-fuel mixture control and emissions management.
• 100,000-mile typical lifespan: Long-lasting performance reduces maintenance intervals.
• Steel construction: Durable housing withstands high exhaust temperatures.
• Direct fit replacement: Designed to install without modifications for a hassle-free swap.

Vehicle Fitment

Technical Specifications

Installation Notes

Professional installation recommended to ensure proper torque and prevent exhaust leaks.

About Bosch

Bosch is a globally recognized leader in automotive technology, known for high-quality OE and aftermarket parts.

This part also goes by the following cross reference.

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