Instructions: Replace the cylinder head bolts. During assembly work, replace self-locking nuts, bolts/screws tightened with a full turn, as well as O-rings, lip seals and gaskets. Remove the plastic pads protecting the open valves only immediately before installing the MCC. When replacing the cylinder head or head gasket, drain the old one and fill in new coolant.
- 1 - Cylinder head gasket, replace, note installation position: part number facing head
- 2 - Bolt, 25 Nm
- 3 - Load eye
- 4 - Bolt
- 5 - Cylinder head
- 6 - Cylinder head bolt, replace, follow the sequence when loosening and tightening
- 7 - O-ring, replace, lubricate with engine oil
- 8 - Plug, 5 Nm, with ball head for engine cover
- 9 - Cover with gasket
- 10 - O-ring, replace, lubricate with engine oil
- 11 - Plug
- 12 - Bracket
- 13 - Bolt, 9 Nm
- 14 - Heat shield
- 15 - Bolt, 20 Nm
- 16 - Bolt, 20 Nm
- 17 - To the sleeve of the air intake / turbocharger
- 18 - Fitting for removing steam-air plugs
- 19 - O-ring, no replacement part
- 20 - Gasket, no replacement part
- 21 - Engine cover
- 22 - Bolt
- 23 - Ventilation of the crankcase of the engine, follow the sequence when tightening
- 24 - To the intake manifold
- 25 - Gasket, no replacement part
- 26 - Gasket, replace if damaged
- 27 - Vacuum pump
- 28 - Bolt
- 29 - 9 Nm, not installed on Tiguan
- 30 - Secondary air control valve -N112-, not fitted to Tiguan
- 31 - Gasket, not installed on Tiguan
- 32 - Mounting plate
- 33 - Bolt, 9 Nm
- 34 - Fitting
- 35 - O-ring, replace, moisten with refrigerant
- 36 - Bolt, 25 Nm
- 37 - Load eye
- 38 - Bolt, 9 Nm
- 39 - Hall sender -G40-
- 40 - Partition
Engine parquet ventilation - tightening sequence
Tighten crankcase ventilation bolts in sequence -1...10- to 11 Nm.
Loose cylinder head
Remove screws -arrows-. Loosen the cylinder head bolts in sequence
Cylinder head - bolt tightening sequence
Tighten cylinder head bolts in sequence -1...5- as follows.
- 1. Pre-tighten with a torque wrench to 40 Nm.
- 2. Tighten 90°with a hard wrench.
- 3. Turn 90°with a hard wrench.
- 4. Pre-tighten bolts -arrows- to 3 Nm.
- 5. Turn bolts -arrows- by 90°using a hard wrench.
Checking the curvature of the plane of contact of the cylinder head
Max. permissible curvature of the contact plane: 0.05 mm.
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