504 and 504 Hydraulic Clutches

The hydraulic clutch used on the Peugeot 504 and 505 is a very clever design but there is a problem that the rules usually applied to hydraulic brake systems do not apply and this causes unwanted challenges for many DIY enthusiasts. Brake systems are designed to collect any air in the system at the slave cylinders where it has to be 'bled' off by opening a bleed nipple that is located at the highest point of each cylinder.

Picture of clutch fluid reservoir