{"product_id":"oem-vw-audi-4l0906261b-0281007020-0281007021","title":"Diesel Particulate Matter Sensor 4L0906261B \/ 0281007020 \/ 0281007021 for Audi Q7 Volkswagen Touareg 3.0 TDI Diesel Emission System","description":"\u003cp\u003eCompatible with VW Group diesel emission aftertreatment systems using OEM references:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e4L0906261B\u003c\/li\u003e\n\u003cli\u003e0281007020\u003c\/li\u003e\n\u003cli\u003e0281007021\u003c\/li\u003e\n\u003cli\u003eBosch PM sensor family 0 281 007 020 \/ 0 281 007 021\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eTypical applications include:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eAudi Q7 3.0 TDI (4L platform and select early 4M diesel configurations)\u003c\/li\u003e\n\u003cli\u003eVolkswagen Touareg 3.0 TDI (7P platform)\u003c\/li\u003e\n\u003cli\u003eVW Group V6 diesel engines with DPF soot monitoring system\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eFunction:\u003cbr\u003eInstalled \u003cstrong\u003eafter the diesel particulate filter (DPF)\u003c\/strong\u003e, this sensor measures soot concentration in the exhaust stream. The ECU uses this signal to:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003everify DPF regeneration efficiency\u003c\/li\u003e\n\u003cli\u003edetect soot slip or filter degradation\u003c\/li\u003e\n\u003cli\u003eoptimize regeneration strategy\u003c\/li\u003e\n\u003cli\u003emaintain Euro 6 emissions compliance\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr\u003e\n\u003cp\u003e⚠️ Important\u003cbr\u003eThis is a \u003cstrong\u003eDPF particulate matter (PM) sensor\u003c\/strong\u003e, not a NOx or pressure sensor. It directly measures soot concentration downstream of the diesel particulate filter and is essential for VW Group 3.0 TDI emission control and regeneration logic.\u003c\/p\u003e\n\u003cp\u003eFitment must always be confirmed strictly by OEM number (4L0906261B), as VW\/Audi use multiple revisions across similar V6 diesel platforms depending on model year and ECU calibration.\u003c\/p\u003e","brand":"ASHENG","offers":[{"title":"Default Title","offer_id":51636268466308,"sku":"4L0906261B\/0281007020\/021","price":155.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0966\/8313\/1012\/files\/12_631ae012-0be2-41fb-ae67-ca28e1b773b9.jpg?v=1773732430","url":"https:\/\/www.jslook.com\/products\/oem-vw-audi-4l0906261b-0281007020-0281007021","provider":"ASHENG","version":"1.0","type":"link"}