<p>Bosch oxygen sensor, part number 006 542 21 18 (also listed as 0065422118), for Mercedes-Benz vehicles. An oxygen sensor mounts in the exhaust system and measures the oxygen content of the exhaust gas. It sends that reading to the engine control unit, which uses it to adjust the air-fuel mixture.</p> <p>This sensor is listed for the Mercedes-Benz M-Class (2012-2015), E-Class (2013-2015), GLE-Class (2016-2018), R-Class (2012) and SLK/SLC (2012-2016). The M-Class, E-Class, GLE-Class and R-Class fitments are for the 3.5L V6, and the SLK/SLC fitment is for the 5.5L V8.</p> <p>The sensor carries a 24-month warranty, and cross-reference number 15510 is also listed. Before ordering, check the Compatible Vehicles table below to confirm fitment for your vehicle.</p> <h3>Key Features</h3> <table style="width:100%;border-collapse:collapse;"><tbody> <tr> <td style="padding:6px 12px 6px 0;color:#6b6b6b;border-bottom:1px solid #e5e5e5;vertical-align:top;">Brand</td> <td style="padding:6px 0;border-bottom:1px solid #e5e5e5;">Bosch</td> </tr> <tr> <td style="padding:6px 12px 6px 0;color:#6b6b6b;border-bottom:1px solid #e5e5e5;vertical-align:top;">Part Number</td> <td style="padding:6px 0;border-bottom:1px solid #e5e5e5;">006 542 21 18</td> </tr> <tr> <td style="padding:6px 12px 6px 0;color:#6b6b6b;border-bottom:1px solid #e5e5e5;vertical-align:top;">Part Type</td> <td style="padding:6px 0;border-bottom:1px solid #e5e5e5;">Oxygen Sensor</td> </tr> <tr> <td style="padding:6px 12px 6px 0;color:#6b6b6b;border-bottom:1px solid #e5e5e5;vertical-align:top;">Weight</td> <td style="padding:6px 0;border-bottom:1px solid #e5e5e5;">0.28 lbs</td> </tr> <tr> <td style="padding:6px 12px 6px 0;color:#6b6b6b;border-bottom:1px solid #e5e5e5;vertical-align:top;">Cross Reference Number</td> <td style="padding:6px 0;border-bottom:1px solid #e5e5e5;">15510</td> </tr> <tr> <td style="padding:6px 12px 6px 0;color:#6b6b6b;border-bottom:1px solid #e5e5e5;vertical-align:top;">Warranty</td> <td style="padding:6px 0;border-bottom:1px solid #e5e5e5;">24 Months</td> </tr> </tbody></table> <h3>Compatible Vehicles</h3> <div style="overflow-x:auto;"><table style="width:100%;border-collapse:collapse;font-size:0.95em;"> <thead><tr> <th style="text-align:left;padding:6px 8px 6px 0;border-bottom:2px solid #d0d0d0;">Year</th> <th style="text-align:left;padding:6px 8px 6px 0;border-bottom:2px solid #d0d0d0;">Make</th> <th style="text-align:left;padding:6px 8px 6px 0;border-bottom:2px solid #d0d0d0;">Model</th> <th style="text-align:left;padding:6px 8px 6px 0;border-bottom:2px solid #d0d0d0;">Engine</th> <th style="text-align:left;padding:6px 8px 6px 0;border-bottom:2px solid #d0d0d0;">Notes</th> </tr></thead> <tbody> <tr> <td style="padding:5px 8px 5px 0;border-bottom:1px solid #eeeeee;vertical-align:top;">2013–2014</td> <td style="padding:5px 8px 5px 0;border-bottom:1px solid #eeeeee;vertical-align:top;">Mercedes-Benz</td> <td style="padding:5px 8px 5px 0;border-bottom:1px solid #eeeeee;vertical-align:top;">E400</td> <td style="padding:5px 8px 5px 0;border-bottom:1px solid #eeeeee;vertical-align:top;">3.5L V6 3498cc</td> <td style="padding:5px 8px 5px 0;border-bottom:1px solid #eeeeee;vertical-align:top;">Downstream; Not for cars with (Code 920).</td> </tr> <tr> <td style="padding:5px 8px 5px 0;border-bottom:1px solid #eeeeee;vertical-align:top;">2015</td> <td style="padding:5px 8px 5px 0;border-bottom:1px solid #eeeeee;vertical-align:top;">Mercedes-Benz</td> <td style="padding:5px 8px 5px 0;border-bottom:1px solid #eeeeee;vertical-align:top;">E400 Hybrid</td> <td style="padding:5px 8px 5px 0;border-bottom:1px solid #eeeeee;vertical-align:top;">3.5L V6 3498cc</td> <td style="padding:5px 8px 5px 0;border-bottom:1px solid #eeeeee;vertical-align:top;">Downstream; Not for cars with (Code 920).</td> </tr> <tr> <td style="padding:5px 8px 5px 0;border-bottom:1px solid #eeeeee;vertical-align:top;">2016–2018</td> <td style="padding:5px 8px 5px 0;border-bottom:1px solid #eeeeee;vertical-