Delphi ES20181 Oxygen Sensor - Front, Front Left, Rear or Rear Right
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Delphi

Delphi ES20181 Oxygen Sensor - Front, Front Left, Rear or Rear Right

Brand Delphi ES20181
Position Rear
Connector Shape Square
Overall Length 475.0
Package Contents Oxygen Sensor, Instruction Sheet
Position(s) Front, Front Left, Rear, Rear Right. For the position specific to your vehicle, refer to the Application tab.
Sensor Type Heated
Thread Size 18 x 1.5 mm
Wire Quantity 4
Fits Mercedes-Benz, Smart, Volkswagen, Jeep, Chrysler, and Dodge · 130 vehicles

Heated sensor. Helps the oxygen sensor reach operating temperature quickly.

Square connector. Designed for a straightforward electrical connection.

OE heritage. Built with decades of original-equipment experience.

Cross-references Bosch 15122, Bosch 15124 and Bosch 16749 for the same application. See all 15.

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Delphi ES20181 Oxygen Sensor for Rear Applications

The Delphi ES20181 is a heated oxygen sensor built for rear sensor locations on a wide range of Mercedes-Benz, Chrysler, Dodge, Jeep, Volkswagen, and Smart applications. It combines Delphi’s OE heritage with the fit and electrical design needed for accurate exhaust monitoring on vehicles such as the Mercedes-Benz C63 AMG, E350, and GL450.

Key Features

  • Heated oxygen sensor for faster operating temperature and stable signal output
  • 4-wire design for reliable signal and heater circuit operation
  • Square connector shape for application-specific fitment
  • 18 x 1.5 mm thread size for direct exhaust installation
  • Overall length: 475.0
  • Package contents: oxygen sensor and instruction sheet
  • Position coverage includes front, front left, rear, and rear right depending on vehicle application

Detailed Description

Delphi ES20181 is an OE-style oxygen sensor engineered from more than a century of original equipment experience. Delphi builds aftermarket parts using knowledge developed while supplying major automakers, and that background is reflected in the sensor’s construction, connector design, and heater-equipped operation. This part number, ES20181, cross-references Bosch 15122 and DENSO Auto Parts 234-4880 for the same application.

Compatible With 2006-2011 Mercedes-Benz C350, rear; 2006-2011 Mercedes-Benz E350, rear; 2007-2012 Mercedes-Benz GL450, rear right; and 2009-2010 Volkswagen Routan, front. It also serves additional rear and rear-right applications across Mercedes-Benz, Chrysler, Dodge, Jeep, and Smart models listed in the fitment data.

What This Sensor Helps Address

  • Check engine light related to oxygen sensor performance
  • Incorrect air-fuel ratio readings from a failing rear sensor
  • Slow sensor response caused by heater circuit wear
  • Emissions test failures tied to exhaust monitoring faults
  • Rough idle or drivability issues when sensor feedback is inaccurate

Installation Notes and Tips

Verify the exact position on your vehicle before ordering, since this sensor is listed for front, front left, rear, and rear right locations depending on application. Match the connector shape, wire count, and thread size to the original sensor before installation. Use the vehicle application tab to confirm whether your model requires the rear or rear-right position. For fitment examples, this part fits 2008-2015 Mercedes-Benz C63 AMG, rear; 2007-2009 Mercedes-Benz SL550, rear; and 2007-2009 Jeep Wrangler, front left.

Quality Assurance

Delphi applies OE heritage and original equipment development experience to this aftermarket oxygen sensor, helping maintain the construction and signal characteristics expected for modern emission control systems.

Related reading

This part fits 130 vehicles
Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.
YearMakeModelSubmodelFuel TypePositionNotes
2015Mercedes-BenzC63 AMG——Rear—
2015SmartFortwo——Rear—
2014Mercedes-BenzC63 AMG——Rear—
2014SmartFortwo——Rear—
2013Mercedes-BenzC63 AMG——Rear—
2013SmartFortwo——Rear—
2012Mercedes-BenzC63 AMG——Rear—
2012Mercedes-BenzGL450——Rear Right—
2012Mercedes-BenzGL550——Rear Right—
2012Mercedes-BenzGLK350Base—Rear—
2012Mercedes-BenzSL550——Rear—
2012Mercedes-BenzSL63 AMG——Rear—
2012SmartFortwo——Rear—
2011Mercedes-BenzC300——Rear—
2011Mercedes-BenzC350——Rear—
2011Mercedes-BenzC63 AMG——Rear—
2011Mercedes-BenzCLS550——Rear—
2011Mercedes-BenzE350Base—Rear—
2011Mercedes-BenzE550Base—Rear—
2011Mercedes-BenzGL450——Rear Right—
2011Mercedes-BenzGL550——Rear Right—
2011Mercedes-BenzGLK350Base—Rear—
2011Mercedes-BenzML350——Rear Right—
2011Mercedes-BenzML550——Rear Right—
2011Mercedes-BenzR350——Rear Right—
2011Mercedes-BenzSL550——Rear—
2011Mercedes-BenzSL63 AMG——Rear—
2011Mercedes-BenzSLK300——Rear—
2011Mercedes-BenzSLK350——Rear—
2011SmartFortwo——Rear—
2010Mercedes-BenzC300——Rear—
2010Mercedes-BenzC350——Rear—
2010Mercedes-BenzC63 AMG——Rear—
2010Mercedes-BenzCLS550——Rear—
2010Mercedes-BenzE350Base—Rear—
2010Mercedes-BenzE550Base—Rear—
2010Mercedes-BenzGL450——Rear Right—
2010Mercedes-BenzGL550——Rear Right—
2010Mercedes-BenzGLK350Base—Rear—
2010Mercedes-BenzML350——Rear Right—
2010Mercedes-BenzML550——Rear Right—
2010Mercedes-BenzR350——Rear Right—
2010Mercedes-BenzSLK300——Rear—
2010Mercedes-BenzSLK350——Rear—
2010SmartFortwo——Rear—
2010VolkswagenRoutan——Front—
2009JeepWrangler——Front Left—
2009Mercedes-BenzC300——Rear—
2009Mercedes-BenzC350——Rear—
2009Mercedes-BenzC63 AMG——Rear—
2009Mercedes-BenzCLK350——Rear—
2009Mercedes-BenzCLK550——Rear—
2009Mercedes-BenzCLS550——Rear—
2009Mercedes-BenzE350Base—Rear—
2009Mercedes-BenzE550Base—Rear—
2009Mercedes-BenzGL450——Rear Right—
2009Mercedes-BenzGL550——Rear Right—
2009Mercedes-BenzML350——Rear Right—
2009Mercedes-BenzML550——Rear Right—
2009Mercedes-BenzR350——Rear Right—
2009Mercedes-BenzSL550——Rear—
2009Mercedes-BenzSL63 AMG——Rear—
2009Mercedes-BenzSLK300——Rear—
2009Mercedes-BenzSLK350——Rear—
2009SmartFortwo——Rear—
2009VolkswagenRoutan——Front—
2008ChryslerPacifica——Front—
2008ChryslerTown & Country——Front—
2008DodgeCaliber——Rear—
2008DodgeGrand Caravan——Front—
2008JeepWrangler——Front Left—
2008Mercedes-BenzC300——Rear—
2008Mercedes-BenzC350——Rear—
2008Mercedes-BenzC63 AMG——Rear—
2008Mercedes-BenzCLK350——Rear—
2008Mercedes-BenzCLK550——Rear—
2008Mercedes-BenzCLK63 AMG——Rear—
2008Mercedes-BenzCLS550——Rear—
2008Mercedes-BenzE350Base—Rear—
2008Mercedes-BenzE550Base—Rear—
2008Mercedes-BenzGL450——Rear Right—
2008Mercedes-BenzGL550——Rear Right—
2008Mercedes-BenzML350——Rear Right—
2008Mercedes-BenzML550——Rear Right—
2008Mercedes-BenzR350——Rear Right—
2008Mercedes-BenzSL550——Rear—
2008Mercedes-BenzSLK280——Rear—
2008Mercedes-BenzSLK350——Rear—
2008SmartFortwo——Rear—
2007ChryslerPacifica——Front—
2007ChryslerTown & Country——Front—
2007DodgeCaravan——Front—
2007DodgeGrand Caravan——Front—
2007JeepWrangler——Front Left—
2007Mercedes-BenzC230——Rear—
2007Mercedes-BenzC280Luxury—Rear—
2007Mercedes-BenzC350——Rear—
2007Mercedes-BenzCLK350——Rear—
2007Mercedes-BenzCLK550——Rear—
2007Mercedes-BenzCLK63 AMG——Rear—
2007Mercedes-BenzCLS550——Rear—
2007Mercedes-BenzE350Base—Rear—
2007Mercedes-BenzE550Base—Rear—
2007Mercedes-BenzGL450——Rear Right—
2007Mercedes-BenzML350——Rear Right—
2007Mercedes-BenzR350——Rear Right—
2007Mercedes-BenzS5504Matic—Rear RightTo 06/30/2007
2007Mercedes-BenzSL550——Rear—
2007Mercedes-BenzSLK280——Rear—
2007Mercedes-BenzSLK350——Rear—
2006ChryslerTown & Country——Front—
2006DodgeCaravan——Front—
2006DodgeGrand Caravan——Front—
2006Mercedes-BenzC230——Rear—
2006Mercedes-BenzC280Luxury—Rear—
2006Mercedes-BenzC350——Rear—
2006Mercedes-BenzCLK350——Rear—
2006Mercedes-BenzE350——Rear—
2006Mercedes-BenzML350——Rear Right—
2006Mercedes-BenzR350——Rear Right—
2006Mercedes-BenzSLK280——Rear—
2006Mercedes-BenzSLK350——Rear—
2005ChryslerPacifica——Front—
2005ChryslerTown & Country——FrontMid Model Year Update
2005DodgeCaravan—GASFrontMid Model Year Update
2005DodgeCaravan—FLEXFront—
2005DodgeGrand Caravan——FrontMid Model Year Update
2005DodgeGrand Caravan—GASFrontMid Model Year Update
2005DodgeGrand Caravan—FLEXFront—
2005Mercedes-BenzSLK350——Rear—
Directly replaces or cross-references 15 part numbers
Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.
Bosch — 15122Bosch — 15124Bosch — 16749DENSO Auto Parts — 234-4880DENSO Auto Parts — 234-4881FEL-PRO — 23566NTK — 25186Walker Products — 250-24675Walker Products — 250-24686003 542 82 18004 542 07 187B0 906 2625602 9085AASG1684SU8579