Description

The Bosch 16002 Downstream Oxygen (O2) Sensor is engineered to meet or exceed OEM specifications for Audi, Porsche, and Volkswagen vehicles from 2005 to 2018 . Positioned after the catalytic converter, the downstream oxygen sensor monitors exhaust gases to ensure emissions compliance and optimal catalytic converter efficiency. A failing downstream O₂ sensor can trigger check engine lights, reduce fuel economy, or cause emission test failures. This high-quality Bosch sensor restores accurate exhaust gas readings, supports proper fuel mixture, and maintains engine performance. It is built for long-lasting reliability and features a direct-fit, plug-and-play design for easy installation. Key Features & Benefits Genuine Bosch 16002 Downstream Oxygen Sensor Ensures accurate catalytic converter monitoring Helps maintain emissions compliance and fuel efficiency Improves engine performance and reduces drivability issues Durable, OEM-quality construction for long service life Direct-fit, plug-and-play replacement for easy installation Engine Compatibility Gasoline engines (engine-specific fitment applies) Compatible with multiple Audi, Porsche, and VW engines (verify engine code for exact fit) Vehicle Applications Audi (2005–2018) Porsche (2005–2018) Volkswagen (2005–2018) Part Number Bosch: 16002 Frequently Asked Questions Q1: Is this a downstream or upstream oxygen sensor? A: This is a downstream oxygen sensor, installed after the catalytic converter. Q2: Will this fit my Audi, Porsche, or VW? A: It fits many models from 2005 to 2018. Verify engine code and year for exact fitment. Q3: What are signs of a faulty downstream O2 sensor? A: Check engine light, failed emissions test, poor fuel efficiency, or rough engine performance. Q4: Is this a genuine Bosch part? A: Yes, Bosch 16002 is an OEM-quality oxygen sensor designed to meet or exceed factory specifications. Q5: Is installation difficult? A: No programming is required. It is a direct-fit, plug-and-play replacement.