Parts for your 2017 Mitsubishi Asx-Cluth slave cylinder

2017 Mitsubishi ASX clutch slave cylinder: what’s fitted and how to look after it

Technical sources indicate that a clutch slave cylinder is used on 2017 Mitsubishi ASX models equipped with a manual gearbox, while CVT/automatic variants do not have or require one. This is documented in the Mitsubishi ASX/RVR/Outlander Sport Workshop Manual (Clutch/Clutch Control sections, 2010–2019 coverage) and corroborated by the Mitsubishi Motors ASA electronic parts catalogue for GA-series ASX manual transmissions. Trade information platforms such as Autodata and HaynesPro also list a hydraulic clutch system with master and slave cylinders for manual ASX models of this era.

On a 2017 Mitsubishi ASX with a manual transmission, the clutch slave cylinder is the hardworking hydraulic actuator that converts pedal effort into movement at the clutch fork, so the clutch engages and disengages smoothly. When the driver presses the pedal, the master cylinder sends brake fluid under pressure to the slave cylinder mounted on the transmission housing. The slave then pushes the release fork (and bearing) to separate the clutch plates, letting gears swap without graunching. It’s a simple, reliable setup that keeps the pedal feel light and consistent across Aussie and Kiwi driving conditions.

As part of normal servicing, it’s smart to give the clutch hydraulic system a quick once-over. Check the clutch fluid level and condition in the reservoir, inspect the slave cylinder body, pushrod, rubber dust boot and hose for dampness or weeping, and make sure the line fittings are tidy and tight. If the fluid’s dark or contaminated, have it flushed and bled with the correct spec brake fluid (DOT 3 or DOT 4 as per the handbook), ideally at the same time as a brake fluid service, typically every two years.

Tell-tale signs the slave cylinder may be on the way out include a soft or sinking pedal, difficulty selecting gears, clutch slip that improves after pumping the pedal, visible leaks around the slave, or fluid loss over time with no brake leak found. If any of these crop up, replacement is the go-to fix, the unit isn’t a scheduled replacement item, but once it leaks or binds, it won’t self-recover. Many workshops recommend replacing the master cylinder at the same time to keep pedal feel consistent and reduce the chance of a comeback.

After fitting a new slave, proper bleeding is crucial to remove air and restore a firm pedal. A professional bleed and a quick road test to confirm smooth take-up and clean shifts will have the ASX feeling right as rain.

• Quick care tips: keep fluid fresh, inspect for leaks each service, and don’t ignore a changing pedal feel.
• Note: CVT/automatic ASX models don’t use a clutch slave cylinder at all.

FAQs

Does my 2017 ASX have a clutch slave cylinder?
Yes, if it’s a manual. Manual-transmission ASX models use a hydraulic clutch with both a master and a slave cylinder. CVT/automatic versions don’t have a clutch pedal or a slave cylinder.

What fluid does the ASX clutch use, and how often should it be changed?
The clutch hydraulics use brake fluid (DOT 3 or DOT 4 — check the owner’s manual). It’s good practice to flush and bleed the system about every two years or whenever the brake fluid is serviced, or sooner if the fluid looks dark or contaminated.

Can a failing slave cylinder damage the clutch?
It can indirectly. A weak or leaking slave may not fully disengage the clutch, which can cause gear crunching and extra wear on synchros. If fluid leaks onto the clutch assembly, it can contaminate the friction plate and lead to slipping.