Parts for your 2018 Mitsubishi Asx-Cluth slave cylinder

2018 Mitsubishi ASX cluth-slave-cylinder: fitted on manual models, not used on CVT

Based on Mitsubishi technical literature and parts data, the 2018 Mitsubishi ASX with a manual transmission uses a hydraulic clutch system that includes a cluth-slave-cylinder (release cylinder). This is detailed in Mitsubishi Motors service manuals for ASX/RVR/Outlander Sport (Group 21 – Clutch) and supported by Mitsubishi ASA/MMC parts catalogues listing a clutch release cylinder for GA/GB/GC/GL-series ASX manual variants. Automatic/CVT ASX models don’t have a cluth-slave-cylinder because they don’t use a manual clutch.

On manual 2018 ASX models, the cluth-slave-cylinder’s job is simple but vital: it turns hydraulic pressure from the clutch pedal (via the master cylinder) into movement at the gearbox fork, disengaging the clutch cleanly. That smooth pedal feel and tidy gear change drivers expect relies on the slave staying leak-free, correctly bled, and well supplied with clean fluid.

Servicing-wise, it’s low-fuss but not set-and-forget. The clutch hydraulics share brake fluid, so checking the reservoir level and fluid condition under the bonnet should be a regular habit. Most workshops in Australia and New Zealand recommend replacing hydraulic fluid about every 2 years or 40,000 km, or as per the handbook. Fresh DOT 3 or DOT 4 (as specified for the market) helps prevent internal corrosion and sticky seals. If the pedal goes spongy, gears baulk when selecting first or reverse, or there’s dampness around the bellhousing, it’s time to inspect the slave and associated lines.

• Common signs of a tired cluth-slave-cylinder: low or dark fluid, visible leaks, soft pedal, clutch not fully disengaging, and the need for frequent top-ups.
• Good practice during replacement: confirm the master cylinder health, fit quality OEM-equivalent parts, torque fasteners to workshop specs, and thoroughly bleed the system (gravity or pressure bleed) to clear air.

A replacement is a straightforward job for a competent technician, but cleanliness is everything—any grit or wrong fluid will shorten seal life. It’s also smart to inspect the clutch fork pivot, release bearing movement, and the flexible hose at the same time, so the system works as a matched set. Treated well, the ASX cluth-slave-cylinder will deliver years of hassle-free shifts across Aussie and Kiwi roads.

FAQs

Does a 2018 ASX with CVT have a cluth-slave-cylinder?
No. Only the manual-transmission ASX uses a cluth-slave-cylinder. CVT models don’t have a manual clutch, so there’s no hydraulic slave fitted.

What fluid does the cluth-slave-cylinder use on a 2018 ASX?
It shares the brake fluid reservoir, typically DOT 3 or DOT 4 depending on local specification. Many workshops in AU/NZ refresh it about every 2 years or 40,000 km to keep seals happy and the pedal feel consistent.

How much does replacement usually cost in AU/NZ?
Ballpark figures vary by region and brand of part, but owners often see parts in the AU$150–$350/NZ$160–$380 range, with labour commonly AU$200–$400/NZ$220–$430. Final pricing depends on workshop rates and whether bleeding and additional parts (hose, fluid) are included.