The clutch fluid reservoir is located in the engine compartment next to the brake booster.
The compensation tank is transparent, so that the liquid level can always be checked. It is recommended to take a look at the expansion tank every 4 weeks.
If the fluid level drops, top up with SAE J 1703, DOT 3 or DOT 4 brake fluid.
Check if the fluid level in the expansion tank is between the MIN and MAX marks. If the level falls below the MIN·mark, the hydraulic clutch must be checked for leaks and replaced if necessary. If the system is tight, then there is wear on the clutch disc, see section "Removal and installation of clutch".