1. Remove the engine from vehicle. 
2. Remove the chain cover.
3. Remove the timing chain assembly.
4. Remove the cam sprocket.
NOTE:
Step 4 is only performed when replacing the camshaft.
5. Remove the intake manifold.
6. Remove the rocker cover.
7. Disconnect the fuel delivery pipe and return pipe.
8. Remove the camshaft.
9. Remove the fuel injector and glow plug from the cylinder head.
NOTE:
Step 9 is only performed when disassembling the cylinder head.
10. Remove the EGR cooler from the rear of the cylinder head (RH).
11. Remove the water pipe mounting bolt from the rear of the cylinder head (RH).
12. Remove the fixture bolts of return pipe and water pipe from the rear and underside of the cylinder head (LH).
13. Remove the flange bolts indicated in the figure from the cylinder head.
• LH side
• RH side
14. Remove the cylinder head bolts in the numerical order as shown in the figure. Leave bolts (1) and (4) engaged by three or four threads to prevent the cylinder head from falling.
• LH side
• RH side
15. While tapping the cylinder head with a plastic hammer, separate it from cylinder block.
16. Remove the bolts (1) and (4) to remove cylinder head.
17. Remove the cylinder head gasket.
CAUTION:
Be careful not to scratch the mating surface of cylinder head and cylinder block.