Figure 183. Checking the wear of the driven disk using a template: a - slot for checking on left-hand drive vehicles; b — slot for checking on right-hand drive vehicles; 1 — working cylinder; 2 - plastic cover; 3 - push rod; 4 - template (factory specification number 115 589 07 23 00)
Figure 184. Checking the wear of the driven disk (in case of critical wear, the template does not fit into the corresponding slot)
In the plastic lining on the slave cylinder, located between it and the clutch assembly, two inclined grooves are machined, directed downwards. In the assembled clutch they look like slots into which the template is inserted. The pressure rod of the working cylinder has a variable diameter. The smaller diameter of the rod corresponds to the slot of the template, the latter enters the groove as shown in the figure 183. When checking, this will be confirmed by the fact that the notches made on the sides of the template will be hidden in the groove slot. This means that the driven disk is not yet worn out. If the template does not fit into the slot, it means that the cylinder rod is located opposite the slot with its larger diameter (figure 184). This indicates that the friction linings of the driven disk are worn out and it should be replaced.
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