Heated Oxygen Sensor 2 -G108-: Removing

WARNING: This page is about a different car, the 2012 Audi Q5, 2011 Audi Q5, 2010 Audi Q5, and 2009 Audi Q5. However, it is still accessible from the selected car via links, so may be relevant.

-- Pull rear engine cover off -arrows-.

Fig 1: Pulling Rear Engine Cover Off

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-- Remove coolant reservoir -arrows-.

Fig 2: Identifying Coolant Reservoir

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-- Disconnect electrical connector to the engine coolant level warning switch -F66- on the bottom of the coolant reservoir and lay the reservoir aside with the coolant hoses -1 and 2- and -3- attached.

-- Disconnect electrical connector -2- for the Heated Oxygen Sensor (HO2S) 2 -G108-.

Fig 3: Cylinder Bank 2 Oxygen Sensor Electrical Connectors

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-- Remove HO2S 2 -- -1- using a tool from the 3337.

Fig 4: Identifying Oxygen Sensors Location, Cylinder Bank 2 (Left)

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NOTE:

The installation location is shown with the engine removed.