SEAT Workshop Service and Repair Manuals

Notes:

• ◆ If you install an exchange cylinder head, all contact surfaces between bearing elements, roller rocker fingers and cam running surfaces of camshaft must be oiled before installing cylinder head cover.
• ◆ The plastic protectors fitted to protect the open valves must only be removed immediately before fitting the cylinder head.
• ◆ When replacing the cylinder head the complete coolant must be renewed.

Checking compression pressures

.

• ◆ To remove and install intake manifold => Page 15-14, Removing and installing cylinder head cover
• ◆ To dismantle and assemble intake manifold:

=> Repair group 24; Servicing injection system;Dismantling and assembling intake manifold

• 10 Nm
• Bracket
• ◆ For fuel pipes
• Retaining frame
• 10 Nm
• ◆ With spacer sleeve and seal
• ◆ Replace seal if damaged
• O-ring
• ◆ Renew if damaged
• ◆ Oil before assembling
• ◆ For ignition coil with output stage

• Cap
• ◆ Renew seal if damaged
• Cylinder head cover
• ◆ Removing and installing
  => Page 15-14
• ◆ Renew if damaged
• Lifting eye
• 23 Nm
• Camshaft roller chain
• ◆ Mark D.O.R. before removing (installation position)
  => Page 13-9, Fig. 1
• ◆ Installing => Page 15-36, Adjusting valve timing
• Combi-valve
• ◆ Removing and installing
  => Page 26-23, Removing and installing parts of secondary air system
• ◆ Checking =>Page26-42

• Camshaft adjustment valve -1-, inlet (N205)
• ◆ For inlet camshaft
• ◆ Before removing, mark connector belonging to component
• ◆ Check camshaft adjustment => Page 15-77
• ◆ Checking activation:

=> Repair group 01; Final control diagnosis; Performing final control diagnosis

• Exhaust camshaft control valve -1- (N318)
• ◆ For exhaust camshaft
• ◆ Before removing, mark connector belonging to component
• ◆ Check camshaft adjustment => Page 15-77
• ◆ Checking activation:

=> Repair group 01; Final control diagnosis; Performing final control diagnosis

• Bracket
• ◆ For wiring harness

• O-ring
• ◆ For oil channel seal
• ◆ Renew
• ◆ Oil before assembling
• Hall sender 2 (G163)
• ◆ For exhaust camshaft
• ◆ Before removing, mark connector belonging to component
• ◆ Checking:

=> Repair Group 01; Fault memory; Interrogating and erasing engine control unit fault memory

• Chain tensioner, 40 Nm
• ◆ For camshaft roller chain item 10
• ◆ Only rotate engine when chain tensioner is installed
• Seal
• ◆ Renew if damaged or leaking

• Bracket
• ◆ For wiring harness and earth connection
• 8 Nm
• Seal
• ◆ For camshaft adjustment valve -1-, inlet (N205) item 12 and exhaust camshaft control valve -1- (N318), item 13
• ◆ Renew if damaged or leaking
• ◆ Renew=> Fig. 3
• Thermostat housing
• ◆ Dismantling and assembling => Page 19-13
• ◆ Coolant hose connection diagram
• Seal
• ◆ Renew

• Hall sender (G40)
• ◆ For inlet camshaft
• ◆ Before removing, mark connector belonging to component
• ◆ Checking:

=> Repair Group 01; Fault memory; Interrogating and erasing engine control unit fault memory

• Cover
• ◆ Can be removed and installed with cylinder head fitted
• ◆ Coat sealing surfaces with
  AMV 188 001 02
• ◆ If only cover has been removed, prepare cylinder head gasket for assembly
  => Page 15-12, Fig. 2
• ◆ With O-ring for sealing oil gallery, item 15

• 60 Nm + 1/4 turn (90 °) further
• ◆ Renew
• ◆ Contact surface of sender wheel must be dry around bolt head when assembled
• ◆ To remove and install, counter-hold with 32 mm open jaw spanner on camshaft
  => Page 15-65, Removing and installing camshafts
• Exhaust camshaft adjuster
• ◆ Identification: 32A
• ◆ Rotate engine only when camshaft adjuster is installed
• ◆ Installing => Page 15-36, Adjusting valve timing
• ◆ Check camshaft adjustment => Page 15-77
• Guide rail
• ◆ For camshaft roller chain item 10
• ◆ Clipped to control housing

• Inlet camshaft adjuster
• ◆ Identification: 24E
• ◆ Rotate engine only when camshaft adjuster is installed
• ◆ Installing => Page 15-36, Adjusting valve timing
• ◆ Check camshaft adjustment => Page 15-77
• Cylinder head gasket
• ◆ Metal gasket
• ◆ Renew
• ◆ Preparing cylinder head gasket for installation=> Fig. 2
• ◆ If replaced renew the complete
  coolant
• Cylinder head
• ◆ Check for distortion => Fig. 1
• ◆ Removing and installing
  => Page 15-22
• ◆ If replaced renew the complete
  coolant

• Tensioning element
• ◆ For ribbed belt
• ◆ Removing and installing ribbed belt => Page 13-17
• Cylinder head bolt
• ◆ Renew
• ◆ Follow installation instructions and sequence when loosening and tightening
  => Page 15-22, Removing and installing cylinder head
• Cylinder head cover gasket
• ◆ Renew if damaged or leaking
• ◆ Note fitting position

→ Fig. 1    Checking cylinder head for distortion

Special tools, workshop equipment, testers, measuring instruments and auxiliary items required

• ◆ Straight edge
• ◆ Feeler gauges

Max. permissible distortion: 0.05 mm

→ Fig.2    Preparing cylinder head gasket for assembly

Special tools, workshop equipment, testers, measuring instruments and auxiliary items required

• ◆ AMV 188 001 02 Sealant

Work sequence

• ‒ Remove old sealant from 3 mm holes in the cylinder head gasket -arrows-.
• ‒ Fill 3 mm holes in the cylinder head gasket with sealant AMV 188 001 02 and coat sealing surfaces on cover and sealing flange with sealant.

Note:

With the cylinder head installed the holes are only half visible.

→ Fig. 3    Installing cover seal

Special tools, workshop equipment, testers, measuring instruments and auxiliary items required

• ◆ 3378 Fitting sleeve
• ◆ 3253/6 From assembly device 3253

Installing

• ‒ Do not lubricate seal.
• ‒ Fit sealing ring in the cover part -1- with fitting sleeve 3378 and pull in until it is flush with 3253/6 from assembly device 3253.