Fitment

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

Vehicle applications include:
Audi Q5
Audi SQ5
Porsche Macan

Other VW/Audi/Porsche diesel platforms using OEM part numbers 8R0907807S / 8R0907807E / 8R0907807N / 8R0907807M

FAQ

Q1: What is this NOx sensor used for?

A1: It measures nitrogen oxide levels in diesel exhaust and sends data to the SCR system to control AdBlue (DEF) injection and reduce emissions.

Q2: Are these part numbers interchangeable?

A2: These are OEM revision variants of the same sensor family, including:

• 8R0907807S
• 8R0907807E
• 8R0907807N
• 8R0907807M
  They are commonly cross-referenced across Audi Q5 and Porsche Macan diesel SCR systems, but final fitment depends on engine code and calibration.

Q3: Which vehicles use this sensor?

A3: It is mainly used on:

• Audi Q5 8R (2013–2018)
• Audi SQ5 3.0 TDI
• Porsche Macan 3.0 TDI (95B platform)

Q4: Where is this sensor installed?

A4: It is installed in the exhaust aftertreatment system, usually as SCR inlet or outlet NOx sensor depending on configuration.

Q5: What are common failure symptoms?

A5:

• Engine warning light
• AdBlue/SCR system fault
• NOx signal error
• Limp mode (reduced power)