Removing Cylinder Head

1. Remove vent line.
   1. 1.1 Unscrew fastening screws -1-  .
   2. 1.2 Unclip vent line -2-  from the cable duct and remove it -arrow-  .

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   Vent line

2. Expose engine wire harness close to the vacuum pump. > Engine wire harness close to vacuum pump  > Engine wire harness at the rear right 

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   Engine wire harness close to vacuum pump

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   Engine wire harness at the rear right

3. Unclip engine wire harness close to the high-pressure pump.
   1. 3.1 Unclip engine wire harness at the retaining clips -arrows A-  .
   2. 3.2 Unscrew the screw socket -arrow B-  .

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   Engine wire harness close to high-pressure pump

4. Lift wire harness up and out at the cylinder heads -arrow- 

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   Engine wire harness

5. Remove mounting saddle at the front -8-  (cylinder bank 1 to 4 shown). This hides the cylinder head screws underneath.
   Fig 1: Camshafts Components Location - Cylinder Bank 1 To 4

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   Camshafts, cylinder bank 1 to 4

   1	Camshaft (outlet)
   2	Camshaft (intake)
   3	Hydraulic valve for variable valve lift control
   4	Screw, M5 x 12
   5	Switching tappet (oil with engine oil)
   6	Bucket tappet (oil with engine oil)
   7	Stopper
   8	Mounting saddle 1 to 4
   9	Stopper
   10	Bearing locations (oil with engine oil)
   A	Direction of travel

6. Remove front M8 screw securing the cylinder head for cylinders 1 to 4 to the crankcase. -3- 

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   Cylinder head 1 to 4

7. Remove cylinder head screws in the opposite order to the tightening sequence shown > Tightening sequence for cylinder head  . Remove cylinder head. If necessary, remove the valve lifters now and lay them aside in the correct order.
   Fig 2: Cylinder Head Loosening Sequence

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   Tightening sequence for cylinder head

8. Remove cylinder head gasket.
9. Remove cylinder head for cylinders 5 to 8 in the same way. > Cylinder head 5 to 8 

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Cylinder head 5 to 8