Fitment

Confirmed fitment based on OE number application:

• Volkswagen Touareg (7P)
• Diesel engine applications with SCR (AdBlue) emission system

Fitment is based strictly on OE number matching and verified application listing.

Technical Description

This NOx sensor is used in diesel exhaust aftertreatment systems to measure nitrogen oxide (NOx) levels in exhaust gases.

It sends real-time signals to the engine control unit (ECU) to support SCR (Selective Catalytic Reduction) system operation and emission control strategy.

The sensor is part of the emissions monitoring system in diesel vehicles equipped with AdBlue injection.

Symptoms / Fault Codes

Common symptoms of a failing NOx sensor may include:

• Check engine light
• P2200 / P229F fault codes (system dependent)
• SCR system warning
• Reduced engine performance / limp mode
• Increased emissions

OE / Part Numbers

• 059907807M
• 5WK96689B

FAQ

What does this NOx sensor do?

It measures nitrogen oxide concentration in diesel exhaust gases and sends data to the ECU for SCR emission control.

Is this sensor vehicle-specific?

Yes. It is strictly matched by OE number and used in specific Volkswagen Touareg diesel applications.

Can similar part numbers be used instead?

Not recommended. NOx sensors are ECU-calibrated components and must match exact OE specifications.

What system is it used in?

It is used in SCR (AdBlue) diesel emission systems for NOx monitoring and reduction control.