Visual inspection of the clutch hydraulic drive (Mercedes-Benz E-Class W210)

If the clutch disengages properly and does not drag, then the clutch hydraulic drive is in order. If, on the contrary, it disengages poorly, drags, or the pedal sinks without offering resistance, then perhaps the hydraulic system has become depressurized and air has entered it. In this case, it is necessary to identify and repair the depressurization site yourself or contact a service station.

Sequence of works

1. Inspect the master cylinder (behind the clutch pedal) and the working cylinder (on the gearbox) for traces of brake fluid leakage. Such traces on the working cylinder (arrow) (Fig. 6.3) indicate a malfunction of the hydraulic drive system.



2. If you find brake fluid leaks on the slave cylinder, wipe them off thoroughly to determine their origin later. After driving, find out where exactly the fluid is leaking from.

3. If the hydraulic clutch cylinders themselves are not sealed, they must be replaced.