Disconnect the negative terminal from the battery.

Drain the engine coolant.

Remove the breather hose between the air intake hose and the head cover.

Remove the air cleaner.

Remove the timing belt cover.

Remove the head cover and disconnect camshaft position sensor.

Loosen the camshaft sprocket bolts then remove the camshaft sprockets.

Loosen the camshaft bearing cap bolts and remove the bearing caps, camshafts, rocker arms and lash adjusters.

Fuel system is subject to extremely high pressure (1350 bar).

Never perform any work on injection system with engine running or within 30 seconds after stopping the engine.

Always pay attention to safety precautions.

Ensure the absolute cleanliness.

Never remove the injectors.