1. The gearbox is removed downwards, while the car must be raised above the ground high enough to be able to remove the gearbox from underneath. It is better to do this work over a pit, but you can also lift the car and place it on appropriate stands. It is necessary to pay attention to the fact that for easier disconnection of the drive axles, the wheels must turn. Do not lift the car very high, since some actions must be performed from above. The required clearance should be 600 mm.
2. Since the engine remains in the car without support from behind, a temporary suspension must be made to take its weight. This will be easy if the block and the appropriate equipment or garage winch are available, but if not, then a simple suspension in the form of a cross beam resting on the engine chamber trough may be possible. It is also possible to support the engine from below with blocks placed under the oil pan, but then the car cannot be moved after the gearbox has been removed.
3. Remove the engine cover as described in section 11 and place it carefully next to it.
4. After supporting the engine, disconnect the ground wire from the battery.
5. In this section, the definition of "front" (front part) gearbox refers to the part that is bolted directly to the engine. The definition of "left" and "right" side refers to the sides that you see when standing on the engine side of the car behind the gearbox, see towards the engine.
6. Remove the entire left gearbox mount bracket and set it aside. Drain the gearbox oil.
7. Disconnect the clutch cable from the gearbox.
(The original information is posted on the website VWManual)
8. Disconnect the ground wire connected to the gearbox bracket.
9. Unscrew and remove the starter.
10. Disconnect the reverse light wire from the gearbox.
11. Disconnect the speedometer cable from the gearbox by unscrewing the fastening cuff.
12. Loosen and remove the upper mounting screws connecting the gearbox to the engine.
13. Disconnect the inner ends of the drive axle shafts from the flanges near the gearbox as described in Section 7, and then tie them up so that they do not interfere.
14. Unscrew and remove the rear cover from the clutch housing.
15. Loosen and remove the remaining bolts connecting the engine to the gearbox, paying attention to the position of the rear mounting bracket.
16. Unscrew the rear bracket nut and remove the bracket.
17. Unscrew the bolt from the longitudinal lever of the gear selector lever and remove the connector from the lever. The threads of the bolt are covered with liquid, which prevents it from unscrewing. If necessary, remove the plastic ball from its socket and turn the connector on the longitudinal lever.
18. Support the gearbox on a movable jack (lift) (if any).
19. Then you need to check if anything else is holding the gearbox and think about how it will be lowered. In addition to the gearbox guide pins, the splines of the input shaft (clutch) also jiggle with the clutch disc. Then the gearbox must be moved away from the engine so that the shaft can be removed from the clutch hub. This operation should be carried out carefully, otherwise the clutch disc or the compression can be damaged. If the gearbox is moved unevenly, the shaft will be clamped in the splines.
20. Do not attempt to disconnect the gearbox from the engine by driving a wedge between the engine and the clutch housing, as this will cause the housing to break. When disconnecting the gearbox, care must be taken to ensure that the gearbox does not fall to the ground. Therefore, the help of a second person is required. The gearbox must be moved slowly away from the engine until it can be lowered and removed from under the vehicle.
21. Assembly is carried out in the reverse order of disassembly. First, it is necessary to lightly lubricate the splines of the input shaft with grease and make sure that the rear sheet metal engine partition is correctly installed on the retaining studs. Do not fully tighten the fastening bolts and nuts until the gearbox rests on the brackets. Adjust (as much as necessary) gear selection mechanism.
22. Adjust the clutch as described in Section 5, then check that the gear selector mechanism operates correctly. Fill the gearbox with oil.
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