Bosch 15094 Oxygen Sensor - Downstream Left

Bosch Actual OE Oxygen Sensor 15094

Bosch 15094 is a narrow-band heated oxygen sensor built for precise air-fuel-ratio feedback to the ECU. It supports stable combustion control and emissions management for specific Mercedes-Benz applications, including downstream left locations on select C280, C43 AMG, CLK320, and CLK430 models.

Key Features

• Actual OE Oxygen Sensor from Bosch
• Narrow-band heated design for closed-loop fuel control
• Specific fit with threaded mounting and round female connector
• 4-wire configuration with included wiring harness
• 22 mm hex size and 18 mm thread diameter
• Built with high-temperature-resistant materials for demanding exhaust conditions
• Fits 1998-2000 Mercedes-Benz C280, downstream left
• Fits 1998-2000 Mercedes-Benz C43 AMG, downstream left
• Fits 1998-2000 Mercedes-Benz CLK320, downstream left
• Fits 1999-2000 Mercedes-Benz CLK430, downstream left

Product Details

Bosch Actual OE Oxygen Sensor line is based on decades of original equipment development, starting with Bosch’s early oxygen sensor designs and advancing to faster-response planar narrowband technology. This Bosch 15094 sensor uses a heated narrow-band element to deliver accurate exhaust oxygen feedback, helping the engine control module maintain the correct air-fuel mixture during normal driving and warm-up conditions. It is a direct-fit replacement for select Mercedes-Benz vehicles and cross-references Mercedes-Benz 0015401217 for the same application.

Common Issues This Sensor Can Address

• Check engine light related to oxygen sensor performance
• Incorrect air-fuel ratio readings at the ECU
• Rough idle or unstable closed-loop fuel control
• Increased exhaust emissions from a failing downstream sensor
• Slow sensor response after warm-up

Installation Notes

Verify the downstream left location, connector style, thread size, and harness length before installation. This sensor uses a threaded mount with a 18 mm thread size and 22 mm hex, so the correct oxygen sensor socket is recommended. Confirm the vehicle application against the part number 15094 and the Mercedes-Benz fitment listing before replacement.

Quality Assurance

Bosch supplies OE-proven oxygen sensor technology to the aftermarket, using ceramic sensing elements, controlled heater operation, and durable materials designed for consistent signal output under heat and vibration. Bosch 15094 reflects that OE development background for select Mercedes-Benz C280, C43 AMG, CLK320, and CLK430 applications.