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Home >> Audi >> 2011 >> S5 4.2, Standard >> Repair and Diagnosis >> Engine Mechanical >> Mechanical >> Cylinder Head, VALVETRAIN [CAUA] (Coupe) >> 15 Cylinder Head, VALVETRAIN >> Cylinder Head >> Cylinder Head, Removing And Installing >> Right Cylinder Head, Removing >> Procedure

Right Cylinder Head, Removing: Procedure

Fig 1: Identifying Intake Manifold Bolts Removal/Tightening Sequence
GWWA15-10257Courtesy of AUDI OF AMERICA, LLC

-- Remove the right timing chain cover. Refer to RIGHT TIMING CHAIN COVER, REMOVING AND INSTALLING .

-- Remove the right camshaft timing chain from the camshafts. Refer to CAMSHAFT TIMING CHAIN, REMOVING FROM CAMSHAFTS .

-- Remove the intake manifold. Refer to INTAKE MANIFOLD, REMOVING AND INSTALLING .

-- Remove the right cylinder head cover. Refer to RIGHT CYLINDER HEAD COVER, REMOVING AND INSTALLING .

-- Disconnect the connectors:

Fig 2: Identifying Connectors
GWWA15-10483Courtesy of AUDI OF AMERICA, LLC

2 - On the Camshaft Position Sensor 4 -G301-

3 - On the right high pressure pump

4 - On the Camshaft Adjustment Valve 1 -N205-

-- Remove the bolt -1-, free up the wiring harness and move it to the side.

-- Remove the bolts -1 and 2- and the right chain tensioner.

Fig 3: Identifying Bolts For Right Chain Tensioner And Right Camshaft Timing Chain
GWWA13-10116Courtesy of AUDI OF AMERICA, LLC

-- Disconnect the connectors -arrows- on the fuel injectors.

Fig 4: Identifying Electrical Connectors -Arrows- On Fuel Injectors
GWWA15-10484Courtesy of AUDI OF AMERICA, LLC

-- Remove the high pressure lines -1 and 2- from the connection on the fuel rail.

-- Remove high pressure line -3- from connector on fuel rail by counterholding at hex head with an open end wrench and loosening union nut.

NOTE:

Do Not Change The Bend Shape Of The High Pressure Lines.

NOTE:

The Following Illustrations Show The Left Cylinder Head Instead.

-- Remove the sealing plug -arrow-.

Fig 5: Identifying Locking Bolt
GWWA15-10229Courtesy of AUDI OF AMERICA, LLC

-- Remove the bolts -arrows-.

-- Loosen the cylinder head bolts in the sequence -1 to 10-.

-- Remove the bolts and the cylinder head carefully.

-- Lay the cylinder head on a soft surface, such as foam.

Fig 6: Cylinder Head Bolts Loosening Sequence
GWWA15-10230Courtesy of AUDI OF AMERICA, LLC