The clutch consists of pressure and driven discs (see illustration 7.1), as well as hydraulic drive with main and slave cylinders (see illustrations 7.2a-b). On models with clutch "LuK" a self-adjusting clutch pressure plate is installed. Replacing the pressure and driven discs separately is not allowed.
7.1 Clutch basket components "LuK" ("Sachs" - similar)
1 2-mass flywheel, clutch contact surface must be free of grooves and lubrication
2 driven disc
3 Pressure plate
4 Bolt, M6 - 13 Nm, M7 - 20 Nm
7.2a External parts of the manual transmission hydraulic clutch "02Q"
1 Brake fluid reservoir
2 Spring clamp (not on all models)
3 Rubber or plastic (with gaskets on both ends) a tube; do not pinch the plastic tube
4 Master cylinder
5 Tube retainer 3
6, 14 O-ring
7 Support
8 Clutch pedal
9 Bracket mounting nuts on bulkhead, 3 pcs., 20 Nm
10 Line in the form of a tube / hose, the battery and its holder must be removed to remove
11 Tube support 10, with a diameter of 6 mm
12 Plastic line, do not pinch, to remove the battery and its holder must be removed
13 Tube support 12, with a diameter of 8 mm
15 Connection for nipple 17
16 Tube/connection retainer 15
17 bleed valve
18 cap
19 Slave cylinder
20 RKPP
7.2b Parts of the hydraulic clutch inside the gearbox housing "02Q"
1 Cylinder 2 bolts, 3 pcs., to be replaced, 12 Nm (for metal cylinder, without fixing sealant) or 15 Nm (for plastic cylinder, with fixing sealant)
2 Slave cylinder with release bearing, not replaceable individually; do not wash the bearing, just wipe it
3, 9 O-ring
4 Connection lock 10
5 bleed valve
6 cap
7 Tube retainer 8
8 plastic tube
10 Connection for nipple 5
11 Oil seal input shaft manual transmission
The pressure plate is bolted to the flywheel connected to the crankshaft of the engine. Between the pressure plate and the flywheel is a driven disk, which is pressed against the flywheel by the release bearing of the slave cylinder. The driven disk is connected to the manual transmission input shaft through a spline connection.
When the clutch pedal is depressed, the brake fluid from the common reservoir is transferred under pressure through the clutch master cylinder to the slave cylinder. The slave cylinder through the clutch release lever and the release bearing acts on the pressure plate. In this case, the driven disk is retracted from the flywheel and the power connection between the engine and the manual transmission is interrupted. When released, the pressure spring presses the bearing against the diaphragm spring of the pressure plate. This reduces wear on the clutch release bearing, as when turned on, it does not accelerate to the engine speed. Clutch adjustment is not required.
Each time the clutch is engaged and disengaged as a result of force action, the friction linings of the driven disk are worn. The driven disc is a wear part, but its average life is quite long and depends mainly on the load on the engine and driving style.