Clutch Master Cylinder
The clutch master cylinder converts clutch pedal movement into hydraulic pressure to operate the clutch.
What is Clutch Master Cylinder?
It usually shares fluid with the brake reservoir. It is mounted on the bulkhead at the clutch pedal. Internal seals wear over time. Brake fluid absorbs moisture, so the clutch system benefits from the same regular fluid changes as the brakes.
How it works
Pressing the pedal pushes a piston that sends fluid to the slave cylinder.
Why it matters for your car
A sinking or soft clutch pedal and difficulty selecting gears can mean a leaking master cylinder. Air in the system also causes a spongy pedal and requires bleeding.
Other terms
- Auto Hold (Brake Hold)
- Brake Pad Wear Sensor
- Camshaft Position Sensor
- Crank But No Start
- Cylinder Block (Engine Block)
- Cylinder Honing
- Diesel Knock (Combustion Knock)
- DPF Warning Light
- Eco Mode (Economy Drive Mode)
- Eco-driving
- Engine Balance (Primary And Secondary)
- Maximum Roof Load
- Pending Code
- Snow Foam
- Starter Motor
- Torque Curve
- Traffic Jam Assist
- Trailer Stability Control (Trailer Sway Control)
- Tyre Repair Kit (Sealant Kit)
- Zipper Merge