NOx SENSOR 2 -G687-, REMOVING AND INSTALLING: Removing

WARNING: This page is about a different car, the 2016 Audi A3 and 2015 Audi A3. However, it is still accessible from the selected car via links, so may be relevant.

Follow the safety precautions when working on the exhaust system. Refer to SAFETY PRECAUTIONS WHEN WORKING ON EXHAUST SYSTEM .

-- Remove the left center underbody trim panel. Refer to OVERVIEW - UNDERBODY TRIM PANELS / UNDERBODY TRIM PANELS, REMOVING AND INSTALLING .

Fig 1: Identifying Rear Noise Insulation

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-- Disconnect the connector -1-.

Fig 2: NOx Sensor Control Module 2 -J881- (Country-Specific)

Courtesy of AUDI OF AMERICA, LLC

-- Remove the nuts -arrows-.

-- Free up and remove the NOx Sensor Control Module -J583-.

-- Remove the NOx Sensor 2 -G687- -arrow-.

Fig 3: NOx Sensor 2 -G687- (Country-Specific) - Tightening Specification

Courtesy of AUDI OF AMERICA, LLC