Valve Stem Seals, Cylinder Head Installed: Removing

-- Camshafts, removing, refer to CAMSHAFTS .

-- Mark the allocation of the roller rocker lever and the hydraulic adjusting elements so they can be installed again.

-- If necessary, remove the roller rocker levers with the hydraulic adjusting elements and place them on a clean surface.

-- Move piston for respective cylinder to "Bottom Dead Center (BDC) position".

-- Using 3122 B, remove spark plugs.

-- Place driftVAS 5161/3 on valve spring plate and loosen stuck valve keepers using a plastic hammer.

Fig 1: Identifying Special Tool - Drift VAS 5161/3

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-- Position guide plateVAS 5161/19B on cylinder head.

Fig 2: Identifying Guide Plate For FSI Engine VAS 5161/19B

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-- Secure guide plate with knurled screwsVAS 5161/12.

-- Screw T40012 with gasket by hand into respective spark plug thread and apply constant pressure.

• Minimum pressure: 6 bar positive pressure.

-- Secure engaging deviceVAS 5161/6 with installation forkVAS 5161/5 to guide plate.

Fig 3: Identifying Engaging Device VAS 5161/6 With Installation Fork VAS 5161/5

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-- Push installation cartridgeVAS 5161/8 into guide plate.

-- Engage pressure forkVAS 5161/2 at engaging device and press down installation cartridge.

-- At the same time, turn knurled bolt of installation cartridge to the right, until the points engage in the valve keepers.

-- Lightly move knurled bolt back and forth, causing the valve retainers to be pressed apart and be captured in the installation cartridge.

-- Release pressure fork.

-- Take out installation cartridge.

-- Unfasten guide plate and turn it aside.

• Pressurized air hose remains connected.

-- Remove valve spring with valve spring plate.

-- Remove valve stem seal with 3364.

Fig 4: Identifying 3364

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If the 3364 cannot be used on some valve stem seals due to restricted clearance, proceed as follows:

-- Using a drift, drive out roll pin -arrow- at puller with a drift and remove the impact puller attachment.

Fig 5: Driving Out Roll Pin

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-- Place lower part of puller on valve stem seal.

Fig 6: Positioning 3364 Valve Stem Removal Tool At Valve Stem Oil Seal

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-- Secure puller with a drift or cotter pin driver -1-, as shown in illustration.

-- Place lever on puller and pull off valve stem seal -arrow-.