Fitment
Compatible with Volkswagen Group Euro 6 diesel SCR (AdBlue) systems

Vehicle applications include:
Audi Q7
Audi Q8
Volkswagen Touareg
Bentley Bentayga
Other VW Group MLB EVO diesel platforms using OEM 4M0907807J / SNS708

FAQ

Q1: What is this NOx sensor used for?
A1: It measures nitrogen oxide (NOx) in diesel exhaust and sends data to the SCR system to control AdBlue injection and reduce emissions.

Q2: Are 4M0907807J and SNS708 the same part?
A2: Yes. 4M0907807J is the OEM VW/Audi number, and SNS708 is the Continental sensor designation for the same NOx sensor family.

Q3: Where is this sensor installed?
A3: It is installed in the exhaust aftertreatment system, typically as an SCR inlet or outlet NOx sensor depending on vehicle configuration.

Q4: What vehicles commonly use it?
A4: It is mainly used on VW Group 3.0 TDI / 4.0 TDI diesel engines, especially Audi Q7, Q8, VW Touareg, and Bentley Bentayga SCR systems.

Q5: What are common failure symptoms?
A5: Engine warning light, AdBlue/SCR system faults, NOx signal errors, or limp mode activation.