Remove Cylinder Bank 2 (Left)

-- Remove the screws -arrows- from the coolant reservoirs.

Fig 1: Identifying Coolant Hose And Coolant Reservoir

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-- Disconnect the connector from the engine coolant level warning switch -F66- at the bottom of the coolant reservoir and move the coolant reservoir to the side with the coolant hoses -1 through 3- still connected.

-- Remove the screws -arrows- from the connector strip.

Fig 2: Identifying Bolts On Left Cylinder Head

Courtesy of AUDI OF AMERICA, LLC

-- Disconnect the connector -1- from camshaft position sensor 2 -G163- and -4- and from camshaft position sensor 4 -G301-.

-- Remove the screw -5- from the ground wire.

-- Push the connector toward the ignition coil, open the lock by hand and connect the connector to the ignition coils.

-- Move the wiring harness slightly down.

Continuation For Both Sides: 

-- Place the ignition coil puller:T40039  only on the top rib -arrow- and pull the ignition coils one after the other off the spark plugs.

Fig 3: Identifying Ignition Coil Puller - T40039-

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-- Remove spark plugs using spark plug wrench:VAS 3122B  .