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Removing cylinder head cover - cylinder bank 1 - 3

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  1. Remove the shield, -1-.  Refer to Fig 1. Unscrew 2 hexagon-head bolts M6 x 16. Pull out the shield to the side.
    Fig 1: Removing Shield (Cylinder Bank 1-3)
    G03100219Courtesy of PORSCHE OF NORTH AMERICA, INC.
  2. Remove the exhaust manifold. To do this, unscrew three M8 fastening nuts on the catalytic converter flange. Then unscrew six M8 screws from the cylinder head. If necessary, lever the exhaust manifold off the catalytic converter flange using a screwdriver.
    NOTE:
    • In order to avoid damage to cables or hoses, the engine must not be lowered more than 40 mm.
  3. Use a component jack to lower the engine by 30 - 40 mm. To do this, unscrew the two collar nuts (a/f 18) of the rear engine mounts and slowly lower the engine. Make sure that the hoses and cables are not damaged.
  4. Remove holder for rear muffler, -Item 2 in  Fig 1 .  Disconnect cable plugs of the ignition coils and of the magnetic hydraulic valves. Unscrew 4 hexagon-head bolts: top 2 M8 x 30, bottom 2 M8 x 25, then remove the holder in downward direction.
  5. Remove 3 ignition coils. Unscrew 6 M6 x 25 pan-head screws (hexagon socket a/f 5) and pull ignition coils out of spark-plug recess.
  6. Remove 2 holders and 2 covers for the magnetic hydraulic valves. Unscrew 4 M6 x 20 pan-head screws (hexagon socket a/f 5), remove the connection cable for the hydraulic valves from the sheetmetal bracket and remove the holders. Pull off 2 covers for the hydraulic valves.
    Fig 2: Identifying Holder For Camshaft Adjustment Valve & Valve Lift Adjustment Valve
    G03100220Courtesy of PORSCHE OF NORTH AMERICA, INC.
    • A: Holder for camshaft adjustment valve (NVS)
    • B: Holder for valve lift adjustment valve (VVS)

    Cover for magnetic hydraulic valves in installation position with integrated seal 

    Fig 3: Identifying Covers For Magnetic Hydraulic Valves (Installed Position)
    G03100221Courtesy of PORSCHE OF NORTH AMERICA, INC.
  7. The cap of the stabilizer mount must be removed before the lower hexagon-head bolt (-2-  , Item 12 in the tightening sequence diagram) can be unscrewed. Unscrew the two M8 hexagon-head bolts -1-  for this purpose.
    Fig 4: Removing Hexagon-Head Bolts For Stabilizer Bar Mount
    G03100222Courtesy of PORSCHE OF NORTH AMERICA, INC.
    CAUTION: When levering off the cylinder head cover, the cast lugs may break!
  8. Remove the cylinder head cover. To do this, unscrew 20 M6 x 30 hexagon-head bolts from the cylinder head cover. Unscrew the two M6 x 20 hexagon-head bolts on the sides of the oil extraction pump. To release the cylinder head cover, raise the cover carefully at the two protruding cast edges with a slotted screwdriver. Remove the cylinder head cover of bank 1-3.

    Fig 5  shows upper cast lugs. 

    Fig 5: Removing Cylinder Head Cover Carefully At The Two Protruding Cast Edges With A Slotted Screwdriver
    G03100223Courtesy of PORSCHE OF NORTH AMERICA, INC.
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