Description

Upstream Oxygen O₂ Sensor for Mercedes-Benz Vehicles The Bosch 17283 Oxygen O2 Sensor is an OEM-quality upstream sensor engineered for 2011–2020 Mercedes-Benz CL, G, S, and Maybach models . Positioned before the catalytic converter, this sensor continuously monitors exhaust oxygen content and provides real-time data to the engine control module (ECM) to maintain the ideal air-fuel mixture. A failing upstream oxygen sensor can result in poor fuel economy, rough idle, loss of power, increased emissions, and a check engine light . Replacing it with this Bosch OE-grade O2 sensor restores factory-level performance, improves combustion efficiency, and helps protect the catalytic converter. Built with advanced sensing technology, it delivers fast response times and long-term reliability. Key Features & Benefits Genuine Bosch OEM oxygen sensor Upstream (pre-catalytic converter) location Direct-fit replacement – no modifications required Provides accurate air-fuel ratio readings Improves fuel economy and engine response Helps reduce exhaust emissions Prevents check engine light issues Built to meet or exceed Mercedes-Benz OE specifications Engine Compatibility Mercedes-Benz Gasoline Engines (2011–2020) Vehicle Applications Mercedes-Benz CL-Class: 2011–2020 Mercedes-Benz G-Class: 2011–2020 Mercedes-Benz S-Class: 2011–2020 Mercedes-Benz Maybach: 2011–2020 Frequently Asked Questions – Bosch 17283 Oxygen Sensor What does an upstream oxygen sensor do? The upstream O₂ sensor measures exhaust oxygen levels before the catalytic converter to control the air-fuel mixture. Which vehicles does the Bosch 17283 fit? This sensor fits 2011–2020 Mercedes-Benz CL-Class, G-Class, S-Class, and Maybach models. What are the symptoms of a failing upstream O₂ sensor? Poor fuel economy, rough idle, engine hesitation, increased emissions, and check engine light are common signs. Is this a genuine Bosch OEM sensor? Yes, Bosch is an original equipment supplier for Mercedes-Benz, ensuring factory-level quality and performance. Is professional installation recommended? Installation is straightforward, but professional installation is recommended to ensure proper fitment and sensor calibration.