Golf Mk4
| Assembly overview |
| 1 - | Intake manifold, upper part |
| q | Removing and installing → Chapter. |
| q | First tighten with intake manifold lower part to cylinder head, then to both supports |
| q | Dismantling and assembling: → Motronic injection and ignition system (5-cyl. engine); Rep. Gr.24 |
| 2 - | Throttle valve module -J338- |
| q | Heated by coolant. |
| q | Removing and installing: → Motronic injection and ignition system (5-cyl. engine); Rep. Gr.24 |
| 3 - | 10 Nm |
| 4 - | Cap |
| q | Renew seal if damaged. |
| 5 - | Cylinder head cover |
| q | Removing and installing → Chapter. |
| q | Renew if damaged or leaking |
| q | Before fitting coat cover/cylinder head transitions and the half-moon shaped recesses with D 454 300 A3 |
| 6 - | Bracket |
| 7 - | 25 Nm |
| 8 - | Cylinder head bolt |
| q | Renew |
| q | Note assembly instructions and sequence when loosening and tightening → Chapter |
| 9 - | Cylinder head |
| q | Check for distortion → Fig.. |
| q | Removing and installing → Chapter. |
| q | After renewing, renew entire coolant. |
| 10 - | O-ring |
| q | Renew |
| 11 - | Cover |
| q | Can be removed and installed with cylinder head fitted |
| q | Coat sealing surfaces with AMV 176 501 |
| q | If only cover has been removed, prepare cylinder head gasket for assembly → Fig. |
| 12 - | Chain tensioner, 40 Nm |
| q | For camshaft timing chain |
| q | Only rotate engine when chain tensioner is installed |
| 13 - | Seal |
| q | Renew |
| 14 - | Continued coolant circulation pump -V51- |
| q | Checking → Chapter. |
| 15 - | Ignition coil 1 with output stage -N- ... Ignition coil 5 -N164- |
| q | Checking: → Motronic injection and ignition system (5-cyl. engine); Rep. Gr.28 |
| 16 - | Thermostat housing |
| q | Dismantling and assembling → Chapter. |
| 17 - | Gasket |
| q | Renew |
| 18 - | Cylinder head gasket |
| q | Renew |
| q | After renewing, renew entire coolant. |
| 19 - | Intake manifold, lower part |
| 20 - | Gasket for intake manifold upper part |
| q | Renew if damaged. |
| 21 - | 5 Nm |
| 22 - | Combination valve |
| q | Checking → Chapter. |
| q | Removing and installing → Chapter. |
| 23 - | Gasket for intake manifold lower part |
| q | Renew if damaged. |
| 24 - | Tensioning element |
| q | For poly V-belt |
| 25 - | 5 Nm |
| 26 - | Bracket |
| q | For secondary air inlet valve -N112- and variable intake manifold changeover valve -N156- |
| 27 - | Vacuum actuator |
| q | For variable intake manifold changeover |
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Note
