SCR Catalytic Converter, Removing And Installing: Removal

WARNING: This page is about a different car, the 2011 Audi Q7, 2010 Audi Q7, and 2009 Audi Q7. However, it is still accessible from the selected car via links, so may be relevant.

-- On a vehicle with air suspension, activate vehicle lift mode. Refer to VEHICLE LIFT MODE .

-- Disconnect the exhaust system at the clamping sleeve -arrows-.

Fig 1: Disconnect Exhaust System At Clamping Sleeve -Arrows-

Courtesy of AUDI OF AMERICA, LLC

-- Remove NOx Sensor 2 -G687- -item 3-.

Fig 2: SCR Catalytic Converter, Reducing Agent Injector -N474- And NOx Sensor 2 -G687-

Courtesy of AUDI OF AMERICA, LLC

-- Disconnect the connector -5-.

-- Loosen the clamp -arrow- and remove the Reducing Agent Injector -N474-.

-- Move the nuts -1- and screws -2- and -4- and remove the SCR catalytic converter.