Camshaft, Removing And Installing, Engine With Camshaft Adjustment: Removing

• The sealing surfaces of the lower cylinder head cover and on the upper cylinder head must not be reworked.
• The camshaft bearings are integrated in the cylinder head or cylinder head cover. Before removing the cylinder head cover the tension from the camshaft timing chain must be released.
• If the cylinder head cover was removed, the cap -item 20-  OVERVIEW - VALVETRAIN, ENGINE WITH CAMSHAFT ADJUSTMENT must be replaced.
• During installation, all cable ties must be installed at the same location.
• Replace the cylinder head cover bolt after removing.

Preliminary work may be required depending on the model. Refer to VALVE TIMING, CHECKING .

-- Remove the air filter housing. Refer to AIR FILTER HOUSING, REMOVING AND INSTALLING .

-- Remove the cam adjustment actuator. Refer to CAM ADJUSTMENT ACTUATOR, REMOVING AND INSTALLING .

-- Turn the crankshaft using the :T40263  , :T40314  and the 24 mm socket until the vibration damper is at "TDC".

• The notch on the vibration damper and the marking on the lower cover for timing chain must be opposite one another -arrow-.
• The markings -1- on the camshaft chain sprockets must point upward.

TIP: 

The combination of the :T40263  , : T40314  and 24 mm socket are better suited than the :T10355  for positioning the vibration damper.

-- Install the :T40196  as shown.

-- Turn the crankshaft two complete turns in the direction of engine rotation.

• The engine must be back at "TDC".

-- Remove the :T40196  .

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

-- Turn the intake camshaft with a wrench in the direction of -arrow 1-, slide the :T40271/2  out of the chain sprocket splines in the direction of -arrow 2- and bring the camshaft into the rest position.

-- Turn the exhaust camshaft with a wrench in the direction of -arrow 1-, slide the :T40271/1  out of the chain sprocket splines in the direction of -arrow 2- and bring the camshaft into the rest position.

-- Remove the high pressure pump. Refer to HIGH PRESSURE PUMP, REMOVING AND INSTALLING .

-- Remove the vacuum pump. Refer to VACUUM PUMP, REMOVING AND INSTALLING .

-- Remove the cylinder head cover bolts in -1 to 6- sequence.

-- Pry up the cylinder head cover -2- using a tool for example a screwdriver -1- starting at the chain side.

-- Remove the cylinder head cover.

-- Remove the camshaft and cover the open engine components.