URO 0045420818 Oxygen Sensor - Rear, Rear Left or Rear Right

Mercedes-Benz Oxygen Sensor Replacement

This URO oxygen sensor is a direct-fit emission control replacement for select Mercedes-Benz models, including C300, GL450, GL550, GLK350, ML350, R350, S550, and AMG applications. Built for European vehicles, URO Parts replacement components are made to meet or exceed OEM specifications for dependable sensor performance and accurate exhaust monitoring.

• Part number: 0045420818
• Oxygen sensor for rear left, rear right, and rear positions, depending on application
• OE-style replacement for Mercedes-Benz emission control service
• Cross-reference example: DENSO Auto Parts 234-4896
• Cross-reference example: NTK 25186

Detailed Product Overview

URO 0045420818 is an oxygen sensor designed for European vehicle repair where precise exhaust feedback is needed for engine management and emissions control. It is a practical replacement choice for Mercedes-Benz C300 oxygen sensor service, Mercedes-Benz ML350 rear left oxygen sensor replacement, and other listed applications across 2006-2012 model years. The part number 0045420818 is also referenced by multiple aftermarket catalogs, helping simplify lookup during maintenance and repair.

Common Uses

• Check engine light related to oxygen sensor performance
• Incorrect air-fuel ratio readings
• Emissions test failures tied to sensor output
• Rough idle or drivability concerns caused by faulty exhaust feedback
• Replacement for worn rear oxygen sensors on Mercedes-Benz vehicles

Installation Notes and Fitment

Compatible With 2011-2012 Mercedes-Benz C300, rear left; 2008 Mercedes-Benz C300, rear left; 2009-2010 Mercedes-Benz C300, rear right; 2007-2012 Mercedes-Benz GL450, rear left; 2008-2012 Mercedes-Benz GL550, rear left; 2010 and 2012 Mercedes-Benz GLK350, rear left; 2011 Mercedes-Benz GLK350, rear right; 2008 and 2010-2011 Mercedes-Benz CLS63 AMG, rear left; 2007 and 2009 Mercedes-Benz CLS63 AMG, rear right; 2010-2011 Mercedes-Benz E350, rear left; 2011 Mercedes-Benz E550, rear right; 2008 and 2011 Mercedes-Benz E63 AMG, rear left; 2007 and 2009-2010 Mercedes-Benz E63 AMG, rear right; 2006-2011 Mercedes-Benz ML350, rear left; 2008 and 2010-2011 Mercedes-Benz ML63 AMG, rear left; 2007 and 2009 Mercedes-Benz ML63 AMG, rear right; 2006-2011 Mercedes-Benz R350, rear left; 2007 Mercedes-Benz R63 AMG, rear; 2008 and 2011 Mercedes-Benz S550, rear left; 2007 and 2009-2010 Mercedes-Benz S550, rear right; 2008 Mercedes-Benz S63 AMG, rear left; 2009-2010 Mercedes-Benz S63 AMG, rear right; 2007-2008 Mercedes-Benz CL550, rear left; 2009-2010 Mercedes-Benz CL550, rear right; 2010 Mercedes-Benz CL63 AMG, rear left; 2008-2009 Mercedes-Benz CL63 AMG, rear right.

Verify the sensor position before ordering, since rear left, rear right, and rear applications are all listed for different Mercedes-Benz models. Use the vehicle’s original sensor location and connector style as the final match point.

Quality Assurance

A.P.A. manufactures the URO Parts brand for European vehicles using replacement parts that are intended to meet or exceed OEM specifications. URO Parts is positioned as an aftermarket alternative to dealer-priced genuine components, with a focus on professional repair and DIY service.