Delphi ES20074 Oxygen Sensor - Front

Delphi ES20074 Oxygen Sensor for Mercedes-Benz C230

The Delphi ES20074 is a heated front oxygen sensor built for precise exhaust monitoring on select Mercedes-Benz C230 models. It combines OE-based engineering with the fitment and connector details needed for a direct replacement on 1997-2000 Mercedes-Benz C230 front applications.

Key Features

• Heated oxygen sensor for faster operating temperature and stable signal output
• Front position application for select Mercedes-Benz C230 models
• 4-wire design with round connector shape
• 18 x 1.5 mm thread size for proper exhaust bung fitment
• Overall length: 1165.0
• Package contents: oxygen sensor and instruction sheet
• Delphi OE heritage built from 100 years of original equipment experience

Detailed Description

Delphi ES20074 is an emission control sensor engineered for front placement on 1997-2000 Mercedes-Benz C230 vehicles. As a heated oxygen sensor, it helps the engine control system monitor exhaust oxygen content more quickly after startup, supporting accurate fuel control and emissions management. Delphi draws on long-standing OE experience and supplier knowledge to produce aftermarket parts that reflect original equipment design expectations. This part cross-references Bosch 15083 and DENSO Auto Parts 234-4133 for the same application.

What It Helps Address

• Check engine light related to oxygen sensor performance
• Rough idle or inconsistent air-fuel feedback from a worn sensor
• Failed emissions inspection caused by sensor response issues
• Reduced fuel control accuracy from aging exhaust monitoring components
• Front sensor replacement needs on Mercedes-Benz C230 models

Installation Notes and Tips

Compatible With 1997-2000 Mercedes-Benz C230, front. Verify the connector shape, wire count, and 18 x 1.5 mm thread size before installation. The instruction sheet is included for reference, and the sensor should be installed in the front exhaust location specified for the vehicle. Confirm the existing harness routing and sensor length match the original layout before final tightening.

Quality Assurance

Delphi builds this oxygen sensor using OE-based engineering and manufacturing knowledge developed through decades of original equipment supply. The ES20074 is intended to meet the fitment and functional requirements of the listed Mercedes-Benz C230 front applications.