Denso 234-5066 Oxygen Sensor 2012-2012 &gt; Mercedes Benz &gt; E-Class &gt; L8 4.6L 4663cc &gt; E550; Position: Upstream 2012-2012 &gt; Mercedes Benz &gt; E-Class &gt; L8 5.5L 5461cc &gt; E63 AMG; Position: Upstream 2012-2012 &gt; Mercedes Benz &gt; CLS-Class &gt; L8 4.6L 4663cc &gt; CLS550; Position: Upstream 2012-2012 &gt; Mercedes Benz &gt; CLS-Class &gt; L8 5.5L 5461cc &gt; CLS63 AMG; Position: Upstream ** NOTE: PRODUCT IMAGE MAY NOT BE VEHICLE SPECIFIC