High accuracy, Hermetically sealed, Small size Plug-and-play, direct fit, Easy Installation Fix the check engine light issue, provide extreme durability for , improves fuel economy and lowers emission Higher grade of electric components. Improved heat sink and charging capabilities. Item Type:Car Oxygen Sensor Fitment Type:Direct Install Condition:100% New Part Number:A0009053503 5WK96682D 5WK96682A Manufacturer Part Number: A 000 905 35 03 A 000 905 70 00 A 000 905 30 00 A 006 542 72 18 A 003 542 88 18 Fitment: For W164 W166 W205 W212 W221 W251 For GL320 2007-2009 - 3.0L 6 Cyl (24 Valve) - Turbo For GL350 2010-2014 - 3.0L 6 Cyl (24 Valve) - Turbo For ML320 2007-2009 - 3.0L 6 Cyl (24 Valve) - Turbo For ML350 2010-2014 - 3.0L 6 Cyl (24 Valve) - Turbo For R320 2007-2009 CDI - 3.0L 6 Cyl (24 Valve) - Turbo For R350 2010-2012 Bluetec 4Matic - 3.0L 6 Cyl (24 Valve) - Turbo For SLK350 2012-2014 - 3.5L 6 Cyl (24 Valve) Colour:Black & Silver Material:plastic+metal Package Contents: 1 * Car Nox Sensor Nitrogen Oxide Sensor Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.